From 805d410fb0dbd65e1a57a810858fa2491e75822d Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Fri, 21 Dec 2012 00:36:39 +0100
Subject: ACPI: Separate adding ACPI device objects from probing ACPI drivers

Split the ACPI namespace scanning for devices into two passes, such
that struct acpi_device objects are registerd in the first pass
without probing ACPI drivers and the drivers are probed against them
directly in the second pass.

There are two main reasons for doing that.

First, the ACPI PCI root bridge driver's .add() routine,
acpi_pci_root_add(), causes struct pci_dev objects to be created for
all PCI devices under the given root bridge.  Usually, there are
corresponding ACPI device nodes in the ACPI namespace for some of
those devices and therefore there should be "companion" struct
acpi_device objects to attach those struct pci_dev objects to.  These
struct acpi_device objects should exist when the corresponding
struct pci_dev objects are created, but that is only guaranteed
during boot and not during hotplug.  This leads to a number of
functional differences between the boot and the hotplug cases which
are not strictly necessary and make the code more complicated.

For example, this forces the ACPI PCI root bridge driver to defer the
registration of the just created struct pci_dev objects and to use a
special .start() callback routine, acpi_pci_root_start(), to make
sure that all of the "companion" struct acpi_device objects will be
present at PCI devices registration time during hotplug.

If those differences can be eliminated, we will be able to
consolidate the boot and hotplug code paths for the enumeration and
registration of PCI devices and to reduce the complexity of that
code quite a bit.

The second reason is that, in general, it should be possible to
resolve conflicts of resources assigned by the BIOS to different
devices represented by ACPI namespace nodes before any drivers bind
to them and before they are attached to "companion" objects
representing physical devices (such as struct pci_dev).  However, for
this purpose we first need to enumerate all ACPI device nodes in the
given namespace scope.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Toshi Kani <toshi.kani@hp.com>
---
 drivers/acpi/scan.c | 103 ++++++++++++++++++++++++++++++++++++----------------
 1 file changed, 72 insertions(+), 31 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 53502d1bbf26..726f0d1ace4b 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -494,7 +494,8 @@ static int acpi_bus_match(struct device *dev, struct device_driver *drv)
 	struct acpi_device *acpi_dev = to_acpi_device(dev);
 	struct acpi_driver *acpi_drv = to_acpi_driver(drv);
 
-	return !acpi_match_device_ids(acpi_dev, acpi_drv->ids);
+	return acpi_dev->bus_ops.acpi_op_match
+		&& !acpi_match_device_ids(acpi_dev, acpi_drv->ids);
 }
 
 static int acpi_device_uevent(struct device *dev, struct kobj_uevent_env *env)
@@ -1418,6 +1419,17 @@ static int acpi_bus_remove(struct acpi_device *dev, int rmdevice)
 	return 0;
 }
 
+/*
+ * acpi_hot_add_bind - Bind _ADR-based devices on hot-add.
+ * @device: ACPI device node to bind.
+ */
+static void acpi_hot_add_bind(struct acpi_device *device)
+{
+	if (device->flags.bus_address
+	    && device->parent && device->parent->ops.bind)
+		device->parent->ops.bind(device);
+}
+
 static int acpi_add_single_object(struct acpi_device **child,
 				  acpi_handle handle, int type,
 				  unsigned long long sta,
@@ -1490,13 +1502,8 @@ static int acpi_add_single_object(struct acpi_device **child,
 
 	result = acpi_device_register(device);
 
-	/*
-	 * Bind _ADR-Based Devices when hot add
-	 */
-	if (device->flags.bus_address) {
-		if (device->parent && device->parent->ops.bind)
-			device->parent->ops.bind(device);
-	}
+	if (device->bus_ops.acpi_op_match)
+		acpi_hot_add_bind(device);
 
 end:
 	if (!result) {
@@ -1522,6 +1529,7 @@ static void acpi_bus_add_power_resource(acpi_handle handle)
 	struct acpi_bus_ops ops = {
 		.acpi_op_add = 1,
 		.acpi_op_start = 1,
+		.acpi_op_match = 1,
 	};
 	struct acpi_device *device = NULL;
 
@@ -1574,9 +1582,9 @@ static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl,
 				      void *context, void **return_value)
 {
 	struct acpi_bus_ops *ops = context;
+	struct acpi_device *device = NULL;
 	int type;
 	unsigned long long sta;
-	struct acpi_device *device;
 	acpi_status status;
 	int result;
 
@@ -1596,52 +1604,84 @@ static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl,
 		return AE_CTRL_DEPTH;
 	}
 
-	/*
-	 * We may already have an acpi_device from a previous enumeration.  If
-	 * so, we needn't add it again, but we may still have to start it.
-	 */
-	device = NULL;
 	acpi_bus_get_device(handle, &device);
 	if (ops->acpi_op_add && !device) {
-		acpi_add_single_object(&device, handle, type, sta, ops);
-		/* Is the device a known good platform device? */
-		if (device
-		    && !acpi_match_device_ids(device, acpi_platform_device_ids))
-			acpi_create_platform_device(device);
-	}
+		struct acpi_bus_ops add_ops = *ops;
 
-	if (!device)
-		return AE_CTRL_DEPTH;
-
-	if (ops->acpi_op_start && !(ops->acpi_op_add)) {
-		status = acpi_start_single_object(device);
-		if (ACPI_FAILURE(status))
+		add_ops.acpi_op_match = 0;
+		acpi_add_single_object(&device, handle, type, sta, &add_ops);
+		if (!device)
 			return AE_CTRL_DEPTH;
+
+		device->bus_ops.acpi_op_match = 1;
+		acpi_hot_add_bind(device);
 	}
 
 	if (!*return_value)
 		*return_value = device;
+
 	return AE_OK;
 }
 
+static acpi_status acpi_bus_probe_start(acpi_handle handle, u32 lvl,
+					void *context, void **not_used)
+{
+	struct acpi_bus_ops *ops = context;
+	acpi_status status = AE_OK;
+	struct acpi_device *device;
+	unsigned long long sta_not_used;
+	int type_not_used;
+
+	/*
+	 * Ignore errors ignored by acpi_bus_check_add() to avoid terminating
+	 * namespace walks prematurely.
+	 */
+	if (acpi_bus_type_and_status(handle, &type_not_used, &sta_not_used))
+		return AE_OK;
+
+	if (acpi_bus_get_device(handle, &device))
+		return AE_CTRL_DEPTH;
+
+	if (ops->acpi_op_add) {
+		if (!acpi_match_device_ids(device, acpi_platform_device_ids)) {
+			/* This is a known good platform device. */
+			acpi_create_platform_device(device);
+		} else if (device_attach(&device->dev)) {
+			status = AE_CTRL_DEPTH;
+		}
+	} else if (ops->acpi_op_start) {
+		if (ACPI_FAILURE(acpi_start_single_object(device)))
+			status = AE_CTRL_DEPTH;
+	}
+	return status;
+}
+
 static int acpi_bus_scan(acpi_handle handle, struct acpi_bus_ops *ops,
 			 struct acpi_device **child)
 {
-	acpi_status status;
 	void *device = NULL;
+	acpi_status status;
+	int ret = -ENODEV;
 
 	status = acpi_bus_check_add(handle, 0, ops, &device);
 	if (ACPI_SUCCESS(status))
 		acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX,
 				    acpi_bus_check_add, NULL, ops, &device);
 
+	if (!device)
+		goto out;
+
+	ret = 0;
+	status = acpi_bus_probe_start(handle, 0, ops, NULL);
+	if (ACPI_SUCCESS(status))
+		acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX,
+				    acpi_bus_probe_start, NULL, ops, NULL);
+
+ out:
 	if (child)
 		*child = device;
 
-	if (device)
-		return 0;
-	else
-		return -ENODEV;
+	return ret;
 }
 
 /*
@@ -1752,6 +1792,7 @@ static int acpi_bus_scan_fixed(void)
 	memset(&ops, 0, sizeof(ops));
 	ops.acpi_op_add = 1;
 	ops.acpi_op_start = 1;
+	ops.acpi_op_match = 1;
 
 	/*
 	 * Enumerate all fixed-feature devices.
-- 
cgit v1.2.3


From 92ef2a25c763338905dce8344a0584606f842920 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Fri, 21 Dec 2012 00:36:40 +0100
Subject: ACPI: Change the ordering of PCI root bridge driver registrarion

Instead of running acpi_pci_root_init() from a separate subsys
initcall, call it directly from acpi_scan_init() before scanning the
ACPI namespace for the first time, so that the PCI root bridge
driver's .add() routine, acpi_pci_root_start(), is always run
before binding ACPI drivers or attaching "companion" device objects
to struct acpi_device objects below the root bridge's device node in
the ACPI namespace.

The first, simpler reason for doing this is that it makes the
situation during boot more similar to the situation during hotplug,
in which the ACPI PCI root bridge driver is always present.

The second reason is that acpi_pci_root_init() causes struct pci_dev
objects to be created for all PCI devices below the bridge and
these objects may be necessary for whatever is done with the other
ACPI device nodes in that namespace scope.  For example, devices
created by acpi_create_platform_device() sometimes may need to be
added to the device hierarchy as children of PCI bridges.  For this
purpose, however, the struct pci_dev objects representing those
bridges need to exist before the platform devices in question are
registered.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Toshi Kani <toshi.kani@hp.com>
---
 drivers/acpi/internal.h | 1 +
 drivers/acpi/pci_root.c | 4 +---
 drivers/acpi/scan.c     | 1 +
 3 files changed, 3 insertions(+), 3 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 3c407cdc1ec1..e050254ae143 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -67,6 +67,7 @@ struct acpi_ec {
 
 extern struct acpi_ec *first_ec;
 
+int acpi_pci_root_init(void);
 int acpi_ec_init(void);
 int acpi_ec_ecdt_probe(void);
 int acpi_boot_ec_enable(void);
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 7928d4dc7056..a233fe93dfac 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -699,7 +699,7 @@ static int acpi_pci_root_remove(struct acpi_device *device, int type)
 	return 0;
 }
 
-static int __init acpi_pci_root_init(void)
+int __init acpi_pci_root_init(void)
 {
 	acpi_hest_init();
 
@@ -712,5 +712,3 @@ static int __init acpi_pci_root_init(void)
 
 	return 0;
 }
-
-subsys_initcall(acpi_pci_root_init);
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 726f0d1ace4b..a7e81ac2cd0c 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1831,6 +1831,7 @@ int __init acpi_scan_init(void)
 	}
 
 	acpi_power_init();
+	acpi_pci_root_init();
 
 	/*
 	 * Enumerate devices in the ACPI namespace.
-- 
cgit v1.2.3


From 0fc300b0537c6a6a7f2b261b6c339dc498cd1702 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Fri, 21 Dec 2012 00:36:41 +0100
Subject: ACPI: Make acpi_bus_add() and acpi_bus_start() visibly different

The current ACPI namespace scanning code suggests that acpi_bus_add()
and acpi_bus_start() share some code.  In fact, however, they are
completely different code paths (except for the initial checks), so
refactor the code to make that distinction visibly clear.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Toshi Kani <toshi.kani@hp.com>
---
 drivers/acpi/scan.c | 63 +++++++++++++++++++++++++++++------------------------
 1 file changed, 35 insertions(+), 28 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index a7e81ac2cd0c..f3bcaf6c6bd4 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1623,10 +1623,9 @@ static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl,
 	return AE_OK;
 }
 
-static acpi_status acpi_bus_probe_start(acpi_handle handle, u32 lvl,
-					void *context, void **not_used)
+static acpi_status acpi_bus_device_attach(acpi_handle handle, u32 lvl_not_used,
+					  void *not_used, void **ret_not_used)
 {
-	struct acpi_bus_ops *ops = context;
 	acpi_status status = AE_OK;
 	struct acpi_device *device;
 	unsigned long long sta_not_used;
@@ -1642,16 +1641,11 @@ static acpi_status acpi_bus_probe_start(acpi_handle handle, u32 lvl,
 	if (acpi_bus_get_device(handle, &device))
 		return AE_CTRL_DEPTH;
 
-	if (ops->acpi_op_add) {
-		if (!acpi_match_device_ids(device, acpi_platform_device_ids)) {
-			/* This is a known good platform device. */
-			acpi_create_platform_device(device);
-		} else if (device_attach(&device->dev)) {
-			status = AE_CTRL_DEPTH;
-		}
-	} else if (ops->acpi_op_start) {
-		if (ACPI_FAILURE(acpi_start_single_object(device)))
-			status = AE_CTRL_DEPTH;
+	if (!acpi_match_device_ids(device, acpi_platform_device_ids)) {
+		/* This is a known good platform device. */
+		acpi_create_platform_device(device);
+	} else if (device_attach(&device->dev)) {
+		status = AE_CTRL_DEPTH;
 	}
 	return status;
 }
@@ -1672,10 +1666,10 @@ static int acpi_bus_scan(acpi_handle handle, struct acpi_bus_ops *ops,
 		goto out;
 
 	ret = 0;
-	status = acpi_bus_probe_start(handle, 0, ops, NULL);
+	status = acpi_bus_device_attach(handle, 0, NULL, NULL);
 	if (ACPI_SUCCESS(status))
 		acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX,
-				    acpi_bus_probe_start, NULL, ops, NULL);
+				    acpi_bus_device_attach, NULL, NULL, NULL);
 
  out:
 	if (child)
@@ -1700,31 +1694,44 @@ int
 acpi_bus_add(struct acpi_device **child,
 	     struct acpi_device *parent, acpi_handle handle, int type)
 {
-	struct acpi_bus_ops ops;
-
-	memset(&ops, 0, sizeof(ops));
-	ops.acpi_op_add = 1;
+	struct acpi_bus_ops ops = { .acpi_op_add = 1, };
 
 	return acpi_bus_scan(handle, &ops, child);
 }
 EXPORT_SYMBOL(acpi_bus_add);
 
-int acpi_bus_start(struct acpi_device *device)
+static acpi_status acpi_bus_start_device(acpi_handle handle, u32 lvl,
+					 void *not_used, void **ret_not_used)
 {
-	struct acpi_bus_ops ops;
-	int result;
+	struct acpi_device *device;
+	unsigned long long sta_not_used;
+	int type_not_used;
+
+	/*
+	 * Ignore errors ignored by acpi_bus_check_add() to avoid terminating
+	 * namespace walks prematurely.
+	 */
+	if (acpi_bus_type_and_status(handle, &type_not_used, &sta_not_used))
+		return AE_OK;
+
+	if (acpi_bus_get_device(handle, &device))
+		return AE_CTRL_DEPTH;
+
+	return acpi_start_single_object(device);
+}
 
+int acpi_bus_start(struct acpi_device *device)
+{
 	if (!device)
 		return -EINVAL;
 
-	memset(&ops, 0, sizeof(ops));
-	ops.acpi_op_start = 1;
-
-	result = acpi_bus_scan(device->handle, &ops, NULL);
+	if (ACPI_SUCCESS(acpi_start_single_object(device)))
+		acpi_walk_namespace(ACPI_TYPE_ANY, device->handle,
+				    ACPI_UINT32_MAX, acpi_bus_start_device,
+				    NULL, NULL, NULL);
 
 	acpi_update_all_gpes();
-
-	return result;
+	return 0;
 }
 EXPORT_SYMBOL(acpi_bus_start);
 
-- 
cgit v1.2.3


From ca7b3c4f3d85bf7ec225eebb43b6af0a25499c6c Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Fri, 21 Dec 2012 00:36:42 +0100
Subject: ACPI: Reduce the usage of struct acpi_bus_ops

Objects of type struct acpi_bus_ops are currently used to pass
information between different parts of the ACPI namespace scanning
code, sometimes in quite convoluted ways.  It turns out that that
is not necessary in some cases, so simplify the code by reducing
the utilization of struct acpi_bus_ops objects where clearly
possible.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Toshi Kani <toshi.kani@hp.com>
---
 drivers/acpi/scan.c | 40 ++++++++++++++++------------------------
 1 file changed, 16 insertions(+), 24 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index f3bcaf6c6bd4..8dde0e7f68d8 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1527,7 +1527,6 @@ end:
 static void acpi_bus_add_power_resource(acpi_handle handle)
 {
 	struct acpi_bus_ops ops = {
-		.acpi_op_add = 1,
 		.acpi_op_start = 1,
 		.acpi_op_match = 1,
 	};
@@ -1581,7 +1580,6 @@ static int acpi_bus_type_and_status(acpi_handle handle, int *type,
 static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl,
 				      void *context, void **return_value)
 {
-	struct acpi_bus_ops *ops = context;
 	struct acpi_device *device = NULL;
 	int type;
 	unsigned long long sta;
@@ -1605,11 +1603,13 @@ static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl,
 	}
 
 	acpi_bus_get_device(handle, &device);
-	if (ops->acpi_op_add && !device) {
-		struct acpi_bus_ops add_ops = *ops;
+	if (!device) {
+		struct acpi_bus_ops ops = {
+			.acpi_op_start = !!context,
+			.acpi_op_match = 0,
+		};
 
-		add_ops.acpi_op_match = 0;
-		acpi_add_single_object(&device, handle, type, sta, &add_ops);
+		acpi_add_single_object(&device, handle, type, sta, &ops);
 		if (!device)
 			return AE_CTRL_DEPTH;
 
@@ -1650,17 +1650,18 @@ static acpi_status acpi_bus_device_attach(acpi_handle handle, u32 lvl_not_used,
 	return status;
 }
 
-static int acpi_bus_scan(acpi_handle handle, struct acpi_bus_ops *ops,
+static int acpi_bus_scan(acpi_handle handle, bool start,
 			 struct acpi_device **child)
 {
 	void *device = NULL;
 	acpi_status status;
 	int ret = -ENODEV;
 
-	status = acpi_bus_check_add(handle, 0, ops, &device);
+	status = acpi_bus_check_add(handle, 0, (void *)start, &device);
 	if (ACPI_SUCCESS(status))
 		acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX,
-				    acpi_bus_check_add, NULL, ops, &device);
+				    acpi_bus_check_add, NULL, (void *)start,
+				    &device);
 
 	if (!device)
 		goto out;
@@ -1694,9 +1695,7 @@ int
 acpi_bus_add(struct acpi_device **child,
 	     struct acpi_device *parent, acpi_handle handle, int type)
 {
-	struct acpi_bus_ops ops = { .acpi_op_add = 1, };
-
-	return acpi_bus_scan(handle, &ops, child);
+	return acpi_bus_scan(handle, false, child);
 }
 EXPORT_SYMBOL(acpi_bus_add);
 
@@ -1794,12 +1793,10 @@ static int acpi_bus_scan_fixed(void)
 {
 	int result = 0;
 	struct acpi_device *device = NULL;
-	struct acpi_bus_ops ops;
-
-	memset(&ops, 0, sizeof(ops));
-	ops.acpi_op_add = 1;
-	ops.acpi_op_start = 1;
-	ops.acpi_op_match = 1;
+	struct acpi_bus_ops ops = {
+		.acpi_op_start = 1,
+		.acpi_op_match = 1,
+	};
 
 	/*
 	 * Enumerate all fixed-feature devices.
@@ -1825,11 +1822,6 @@ static int acpi_bus_scan_fixed(void)
 int __init acpi_scan_init(void)
 {
 	int result;
-	struct acpi_bus_ops ops;
-
-	memset(&ops, 0, sizeof(ops));
-	ops.acpi_op_add = 1;
-	ops.acpi_op_start = 1;
 
 	result = bus_register(&acpi_bus_type);
 	if (result) {
@@ -1843,7 +1835,7 @@ int __init acpi_scan_init(void)
 	/*
 	 * Enumerate devices in the ACPI namespace.
 	 */
-	result = acpi_bus_scan(ACPI_ROOT_OBJECT, &ops, &acpi_root);
+	result = acpi_bus_scan(ACPI_ROOT_OBJECT, true, &acpi_root);
 
 	if (!result)
 		result = acpi_bus_scan_fixed();
-- 
cgit v1.2.3


From a2d06a1a0851fb3d7e775b9d878cdffb9e0300ee Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Fri, 21 Dec 2012 00:36:43 +0100
Subject: ACPI: Replace struct acpi_bus_ops with enum type

Notice that one member of struct acpi_bus_ops, acpi_op_add, is not
used anywhere any more and the relationship between its remaining
members, acpi_op_match and acpi_op_start, is such that it doesn't
make sense to set the latter without setting the former at the same
time.  Therefore, replace struct acpi_bus_ops with new a enum type,
enum acpi_bus_add_type, with three values, ACPI_BUS_ADD_BASIC,
ACPI_BUS_ADD_MATCH, ACPI_BUS_ADD_START, corresponding to
both acpi_op_match and acpi_op_start unset, acpi_op_match set and
acpi_op_start unset, and both acpi_op_match and acpi_op_start set,
respectively.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Toshi Kani <toshi.kani@hp.com>
---
 drivers/acpi/scan.c | 35 ++++++++++++-----------------------
 1 file changed, 12 insertions(+), 23 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 8dde0e7f68d8..7082d11ce5d2 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -494,7 +494,7 @@ static int acpi_bus_match(struct device *dev, struct device_driver *drv)
 	struct acpi_device *acpi_dev = to_acpi_device(dev);
 	struct acpi_driver *acpi_drv = to_acpi_driver(drv);
 
-	return acpi_dev->bus_ops.acpi_op_match
+	return acpi_dev->add_type >= ACPI_BUS_ADD_MATCH
 		&& !acpi_match_device_ids(acpi_dev, acpi_drv->ids);
 }
 
@@ -580,7 +580,7 @@ static int acpi_device_probe(struct device * dev)
 
 	ret = acpi_bus_driver_init(acpi_dev, acpi_drv);
 	if (!ret) {
-		if (acpi_dev->bus_ops.acpi_op_start)
+		if (acpi_dev->add_type == ACPI_BUS_ADD_START)
 			acpi_start_single_object(acpi_dev);
 
 		if (acpi_drv->ops.notify) {
@@ -1433,7 +1433,7 @@ static void acpi_hot_add_bind(struct acpi_device *device)
 static int acpi_add_single_object(struct acpi_device **child,
 				  acpi_handle handle, int type,
 				  unsigned long long sta,
-				  struct acpi_bus_ops *ops)
+				  enum acpi_bus_add_type add_type)
 {
 	int result;
 	struct acpi_device *device;
@@ -1449,7 +1449,7 @@ static int acpi_add_single_object(struct acpi_device **child,
 	device->device_type = type;
 	device->handle = handle;
 	device->parent = acpi_bus_get_parent(handle);
-	device->bus_ops = *ops; /* workround for not call .start */
+	device->add_type = add_type;
 	STRUCT_TO_INT(device->status) = sta;
 
 	acpi_device_get_busid(device);
@@ -1502,7 +1502,7 @@ static int acpi_add_single_object(struct acpi_device **child,
 
 	result = acpi_device_register(device);
 
-	if (device->bus_ops.acpi_op_match)
+	if (device->add_type >= ACPI_BUS_ADD_MATCH)
 		acpi_hot_add_bind(device);
 
 end:
@@ -1526,16 +1526,12 @@ end:
 
 static void acpi_bus_add_power_resource(acpi_handle handle)
 {
-	struct acpi_bus_ops ops = {
-		.acpi_op_start = 1,
-		.acpi_op_match = 1,
-	};
 	struct acpi_device *device = NULL;
 
 	acpi_bus_get_device(handle, &device);
 	if (!device)
 		acpi_add_single_object(&device, handle, ACPI_BUS_TYPE_POWER,
-					ACPI_STA_DEFAULT, &ops);
+					ACPI_STA_DEFAULT, ACPI_BUS_ADD_START);
 }
 
 static int acpi_bus_type_and_status(acpi_handle handle, int *type,
@@ -1604,16 +1600,13 @@ static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl,
 
 	acpi_bus_get_device(handle, &device);
 	if (!device) {
-		struct acpi_bus_ops ops = {
-			.acpi_op_start = !!context,
-			.acpi_op_match = 0,
-		};
-
-		acpi_add_single_object(&device, handle, type, sta, &ops);
+		acpi_add_single_object(&device, handle, type, sta,
+				       ACPI_BUS_ADD_BASIC);
 		if (!device)
 			return AE_CTRL_DEPTH;
 
-		device->bus_ops.acpi_op_match = 1;
+		device->add_type = context ?
+					ACPI_BUS_ADD_START : ACPI_BUS_ADD_MATCH;
 		acpi_hot_add_bind(device);
 	}
 
@@ -1793,10 +1786,6 @@ static int acpi_bus_scan_fixed(void)
 {
 	int result = 0;
 	struct acpi_device *device = NULL;
-	struct acpi_bus_ops ops = {
-		.acpi_op_start = 1,
-		.acpi_op_match = 1,
-	};
 
 	/*
 	 * Enumerate all fixed-feature devices.
@@ -1805,7 +1794,7 @@ static int acpi_bus_scan_fixed(void)
 		result = acpi_add_single_object(&device, NULL,
 						ACPI_BUS_TYPE_POWER_BUTTON,
 						ACPI_STA_DEFAULT,
-						&ops);
+						ACPI_BUS_ADD_START);
 		device_init_wakeup(&device->dev, true);
 	}
 
@@ -1813,7 +1802,7 @@ static int acpi_bus_scan_fixed(void)
 		result = acpi_add_single_object(&device, NULL,
 						ACPI_BUS_TYPE_SLEEP_BUTTON,
 						ACPI_STA_DEFAULT,
-						&ops);
+						ACPI_BUS_ADD_START);
 	}
 
 	return result;
-- 
cgit v1.2.3


From 4002bf384cc567a843a7d16c95db54a7d77b16c6 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Fri, 21 Dec 2012 00:36:44 +0100
Subject: ACPI: Change the ordering of acpi_bus_check_add()

If acpi_bus_check_add() is called for a handle already having an
existing struct acpi_device object attached, it is not necessary to
check the type and status of the device correspondig to it, so
change the ordering of acpi_bus_check_add() to avoid that.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Toshi Kani <toshi.kani@hp.com>
---
 drivers/acpi/scan.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 7082d11ce5d2..eb7ecb1f2032 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1582,6 +1582,10 @@ static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl,
 	acpi_status status;
 	int result;
 
+	acpi_bus_get_device(handle, &device);
+	if (device)
+		goto out;
+
 	result = acpi_bus_type_and_status(handle, &type, &sta);
 	if (result)
 		return AE_OK;
@@ -1598,18 +1602,14 @@ static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl,
 		return AE_CTRL_DEPTH;
 	}
 
-	acpi_bus_get_device(handle, &device);
-	if (!device) {
-		acpi_add_single_object(&device, handle, type, sta,
-				       ACPI_BUS_ADD_BASIC);
-		if (!device)
-			return AE_CTRL_DEPTH;
+	acpi_add_single_object(&device, handle, type, sta, ACPI_BUS_ADD_BASIC);
+	if (!device)
+		return AE_CTRL_DEPTH;
 
-		device->add_type = context ?
-					ACPI_BUS_ADD_START : ACPI_BUS_ADD_MATCH;
-		acpi_hot_add_bind(device);
-	}
+	device->add_type = context ? ACPI_BUS_ADD_START : ACPI_BUS_ADD_MATCH;
+	acpi_hot_add_bind(device);
 
+ out:
 	if (!*return_value)
 		*return_value = device;
 
-- 
cgit v1.2.3


From 47525cda88f5cc4dbe24de1cc05617c08e2d7c4a Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Fri, 21 Dec 2012 00:36:45 +0100
Subject: ACPI / PCI: Fold acpi_pci_root_start() into acpi_pci_root_add()

Move the code from the ACPI PCI root bridge's .start() callback
routine, acpi_pci_root_start(), directly into acpi_pci_root_add()
and drop acpi_pci_root_start().

It is safe to do that, because it is now always guaranteed that
when struct pci_dev objects are created, their companion struct
acpi_device objects are already present, so it is not necessary to
wait for them to be created before calling pci_bus_add_devices().

This change was previously proposed in a different form by
Yinghai Lu.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Toshi Kani <toshi.kani@hp.com>
---
 drivers/acpi/pci_root.c | 32 +++++++++++---------------------
 1 file changed, 11 insertions(+), 21 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index a233fe93dfac..0e593a203ff8 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -47,7 +47,6 @@ ACPI_MODULE_NAME("pci_root");
 #define ACPI_PCI_ROOT_DEVICE_NAME	"PCI Root Bridge"
 static int acpi_pci_root_add(struct acpi_device *device);
 static int acpi_pci_root_remove(struct acpi_device *device, int type);
-static int acpi_pci_root_start(struct acpi_device *device);
 
 #define ACPI_PCIE_REQ_SUPPORT (OSC_EXT_PCI_CONFIG_SUPPORT \
 				| OSC_ACTIVE_STATE_PWR_SUPPORT \
@@ -67,7 +66,6 @@ static struct acpi_driver acpi_pci_root_driver = {
 	.ops = {
 		.add = acpi_pci_root_add,
 		.remove = acpi_pci_root_remove,
-		.start = acpi_pci_root_start,
 		},
 };
 
@@ -453,6 +451,7 @@ static int acpi_pci_root_add(struct acpi_device *device)
 	struct acpi_pci_root *root;
 	acpi_handle handle;
 	struct acpi_device *child;
+	struct acpi_pci_driver *driver;
 	u32 flags, base_flags;
 	bool is_osc_granted = false;
 
@@ -632,24 +631,6 @@ static int acpi_pci_root_add(struct acpi_device *device)
 	if (device->wakeup.flags.run_wake)
 		device_set_run_wake(root->bus->bridge, true);
 
-	return 0;
-
-out_del_root:
-	mutex_lock(&acpi_pci_root_lock);
-	list_del(&root->node);
-	mutex_unlock(&acpi_pci_root_lock);
-
-	acpi_pci_irq_del_prt(root->segment, root->secondary.start);
-end:
-	kfree(root);
-	return result;
-}
-
-static int acpi_pci_root_start(struct acpi_device *device)
-{
-	struct acpi_pci_root *root = acpi_driver_data(device);
-	struct acpi_pci_driver *driver;
-
 	if (system_state != SYSTEM_BOOTING)
 		pci_assign_unassigned_bus_resources(root->bus);
 
@@ -664,8 +645,17 @@ static int acpi_pci_root_start(struct acpi_device *device)
 		pci_enable_bridges(root->bus);
 
 	pci_bus_add_devices(root->bus);
-
 	return 0;
+
+out_del_root:
+	mutex_lock(&acpi_pci_root_lock);
+	list_del(&root->node);
+	mutex_unlock(&acpi_pci_root_lock);
+
+	acpi_pci_irq_del_prt(root->segment, root->secondary.start);
+end:
+	kfree(root);
+	return result;
 }
 
 static int acpi_pci_root_remove(struct acpi_device *device, int type)
-- 
cgit v1.2.3


From 02f57c67a8677ae55dcdd256a2a7abaf41e4cc1f Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Fri, 21 Dec 2012 00:36:46 +0100
Subject: ACPI: Remove acpi_start_single_object() and acpi_bus_start()

The ACPI PCI root bridge driver was the only ACPI driver implementing
the .start() callback, which isn't used by any ACPI drivers any more
now.

For this reason, acpi_start_single_object() has no purpose any more,
so remove it and all references to it.  Also remove
acpi_bus_start_device(), whose only purpose was to call
acpi_start_single_object().

Moreover, since after the removal of acpi_bus_start_device() the
only purpose of acpi_bus_start() remains to call
acpi_update_all_gpes(), move that into acpi_bus_add() and drop
acpi_bus_start() too, remove its header from acpi_bus.h and
update all of its former users accordingly.

This change was previously proposed in a different from by
Yinghai Lu.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Toshi Kani <toshi.kani@hp.com>
---
 drivers/acpi/container.c | 16 +++---------
 drivers/acpi/scan.c      | 66 ++++++------------------------------------------
 2 files changed, 11 insertions(+), 71 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/container.c b/drivers/acpi/container.c
index 811910b50b75..98b85e3e4781 100644
--- a/drivers/acpi/container.c
+++ b/drivers/acpi/container.c
@@ -139,24 +139,14 @@ static int container_device_add(struct acpi_device **device, acpi_handle handle)
 {
 	acpi_handle phandle;
 	struct acpi_device *pdev;
-	int result;
-
-
-	if (acpi_get_parent(handle, &phandle)) {
-		return -ENODEV;
-	}
 
-	if (acpi_bus_get_device(phandle, &pdev)) {
+	if (acpi_get_parent(handle, &phandle))
 		return -ENODEV;
-	}
 
-	if (acpi_bus_add(device, pdev, handle, ACPI_BUS_TYPE_DEVICE)) {
+	if (acpi_bus_get_device(phandle, &pdev))
 		return -ENODEV;
-	}
-
-	result = acpi_bus_start(*device);
 
-	return result;
+	return acpi_bus_add(device, pdev, handle, ACPI_BUS_TYPE_DEVICE);
 }
 
 static void container_notify_cb(acpi_handle handle, u32 type, void *context)
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index eb7ecb1f2032..6321cab4e5ff 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -571,7 +571,6 @@ static void acpi_device_remove_notify_handler(struct acpi_device *device)
 }
 
 static int acpi_bus_driver_init(struct acpi_device *, struct acpi_driver *);
-static int acpi_start_single_object(struct acpi_device *);
 static int acpi_device_probe(struct device * dev)
 {
 	struct acpi_device *acpi_dev = to_acpi_device(dev);
@@ -580,9 +579,6 @@ static int acpi_device_probe(struct device * dev)
 
 	ret = acpi_bus_driver_init(acpi_dev, acpi_drv);
 	if (!ret) {
-		if (acpi_dev->add_type == ACPI_BUS_ADD_START)
-			acpi_start_single_object(acpi_dev);
-
 		if (acpi_drv->ops.notify) {
 			ret = acpi_device_install_notify_handler(acpi_dev);
 			if (ret) {
@@ -761,24 +757,6 @@ acpi_bus_driver_init(struct acpi_device *device, struct acpi_driver *driver)
 	return 0;
 }
 
-static int acpi_start_single_object(struct acpi_device *device)
-{
-	int result = 0;
-	struct acpi_driver *driver;
-
-
-	if (!(driver = device->driver))
-		return 0;
-
-	if (driver->ops.start) {
-		result = driver->ops.start(device);
-		if (result && driver->ops.remove)
-			driver->ops.remove(device, ACPI_BUS_REMOVAL_NORMAL);
-	}
-
-	return result;
-}
-
 /**
  * acpi_bus_register_driver - register a driver with the ACPI bus
  * @driver: driver being registered
@@ -1673,59 +1651,31 @@ static int acpi_bus_scan(acpi_handle handle, bool start,
 }
 
 /*
- * acpi_bus_add and acpi_bus_start
+ * acpi_bus_add
  *
  * scan a given ACPI tree and (probably recently hot-plugged)
- * create and add or starts found devices.
+ * create and add found devices.
  *
  * If no devices were found -ENODEV is returned which does not
  * mean that this is a real error, there just have been no suitable
  * ACPI objects in the table trunk from which the kernel could create
- * a device and add/start an appropriate driver.
+ * a device and add an appropriate driver.
  */
 
 int
 acpi_bus_add(struct acpi_device **child,
 	     struct acpi_device *parent, acpi_handle handle, int type)
 {
-	return acpi_bus_scan(handle, false, child);
-}
-EXPORT_SYMBOL(acpi_bus_add);
-
-static acpi_status acpi_bus_start_device(acpi_handle handle, u32 lvl,
-					 void *not_used, void **ret_not_used)
-{
-	struct acpi_device *device;
-	unsigned long long sta_not_used;
-	int type_not_used;
-
-	/*
-	 * Ignore errors ignored by acpi_bus_check_add() to avoid terminating
-	 * namespace walks prematurely.
-	 */
-	if (acpi_bus_type_and_status(handle, &type_not_used, &sta_not_used))
-		return AE_OK;
-
-	if (acpi_bus_get_device(handle, &device))
-		return AE_CTRL_DEPTH;
-
-	return acpi_start_single_object(device);
-}
-
-int acpi_bus_start(struct acpi_device *device)
-{
-	if (!device)
-		return -EINVAL;
+	int err;
 
-	if (ACPI_SUCCESS(acpi_start_single_object(device)))
-		acpi_walk_namespace(ACPI_TYPE_ANY, device->handle,
-				    ACPI_UINT32_MAX, acpi_bus_start_device,
-				    NULL, NULL, NULL);
+	err = acpi_bus_scan(handle, false, child);
+	if (err)
+		return err;
 
 	acpi_update_all_gpes();
 	return 0;
 }
-EXPORT_SYMBOL(acpi_bus_start);
+EXPORT_SYMBOL(acpi_bus_add);
 
 int acpi_bus_trim(struct acpi_device *start, int rmdevice)
 {
-- 
cgit v1.2.3


From 636458de36f1fb4cdd318387d2f45604e451b17a Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Fri, 21 Dec 2012 00:36:47 +0100
Subject: ACPI: Remove the arguments of acpi_bus_add() that are not used

Notice that acpi_bus_add() uses only 2 of its 4 arguments and
redefine its header to match the body.  Update all of its callers as
necessary and observe that this leads to quite a number of removed
lines of code (Linus will like that).

Add a kerneldoc comment documenting acpi_bus_add() and wonder how
its callers make wrong assumptions about the second argument (make
note to self to take care of that later).

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Toshi Kani <toshi.kani@hp.com>
---
 drivers/acpi/acpi_memhotplug.c  | 19 +------------------
 drivers/acpi/container.c        | 16 +---------------
 drivers/acpi/dock.c             | 13 ++-----------
 drivers/acpi/processor_driver.c | 24 +-----------------------
 drivers/acpi/scan.c             | 34 +++++++++++++++++++++-------------
 5 files changed, 26 insertions(+), 80 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c
index eb30e5ab4cab..d0a7da704d49 100644
--- a/drivers/acpi/acpi_memhotplug.c
+++ b/drivers/acpi/acpi_memhotplug.c
@@ -157,34 +157,17 @@ static int
 acpi_memory_get_device(acpi_handle handle,
 		       struct acpi_memory_device **mem_device)
 {
-	acpi_status status;
-	acpi_handle phandle;
 	struct acpi_device *device = NULL;
-	struct acpi_device *pdevice = NULL;
 	int result;
 
-
 	if (!acpi_bus_get_device(handle, &device) && device)
 		goto end;
 
-	status = acpi_get_parent(handle, &phandle);
-	if (ACPI_FAILURE(status)) {
-		ACPI_EXCEPTION((AE_INFO, status, "Cannot find acpi parent"));
-		return -EINVAL;
-	}
-
-	/* Get the parent device */
-	result = acpi_bus_get_device(phandle, &pdevice);
-	if (result) {
-		acpi_handle_warn(phandle, "Cannot get acpi bus device\n");
-		return -EINVAL;
-	}
-
 	/*
 	 * Now add the notified device.  This creates the acpi_device
 	 * and invokes .add function
 	 */
-	result = acpi_bus_add(&device, pdevice, handle, ACPI_BUS_TYPE_DEVICE);
+	result = acpi_bus_add(handle, &device);
 	if (result) {
 		acpi_handle_warn(handle, "Cannot add acpi bus\n");
 		return -EINVAL;
diff --git a/drivers/acpi/container.c b/drivers/acpi/container.c
index 98b85e3e4781..0688f83bc436 100644
--- a/drivers/acpi/container.c
+++ b/drivers/acpi/container.c
@@ -135,20 +135,6 @@ static int acpi_container_remove(struct acpi_device *device, int type)
 	return status;
 }
 
-static int container_device_add(struct acpi_device **device, acpi_handle handle)
-{
-	acpi_handle phandle;
-	struct acpi_device *pdev;
-
-	if (acpi_get_parent(handle, &phandle))
-		return -ENODEV;
-
-	if (acpi_bus_get_device(phandle, &pdev))
-		return -ENODEV;
-
-	return acpi_bus_add(device, pdev, handle, ACPI_BUS_TYPE_DEVICE);
-}
-
 static void container_notify_cb(acpi_handle handle, u32 type, void *context)
 {
 	struct acpi_device *device = NULL;
@@ -180,7 +166,7 @@ static void container_notify_cb(acpi_handle handle, u32 type, void *context)
 		if (!ACPI_FAILURE(status) || device)
 			break;
 
-		result = container_device_add(&device, handle);
+		result = acpi_bus_add(handle, &device);
 		if (result) {
 			acpi_handle_warn(handle, "Failed to add container\n");
 			break;
diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c
index f32bd47b35e0..ff30582d2e1d 100644
--- a/drivers/acpi/dock.c
+++ b/drivers/acpi/dock.c
@@ -310,8 +310,6 @@ static int dock_present(struct dock_station *ds)
 static struct acpi_device * dock_create_acpi_device(acpi_handle handle)
 {
 	struct acpi_device *device;
-	struct acpi_device *parent_device;
-	acpi_handle parent;
 	int ret;
 
 	if (acpi_bus_get_device(handle, &device)) {
@@ -319,16 +317,9 @@ static struct acpi_device * dock_create_acpi_device(acpi_handle handle)
 		 * no device created for this object,
 		 * so we should create one.
 		 */
-		acpi_get_parent(handle, &parent);
-		if (acpi_bus_get_device(parent, &parent_device))
-			parent_device = NULL;
-
-		ret = acpi_bus_add(&device, parent_device, handle,
-			ACPI_BUS_TYPE_DEVICE);
-		if (ret) {
+		ret = acpi_bus_add(handle, &device);
+		if (ret)
 			pr_debug("error adding bus, %x\n", -ret);
-			return NULL;
-		}
 	}
 	return device;
 }
diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c
index e83311bf1ebd..18b292e12b38 100644
--- a/drivers/acpi/processor_driver.c
+++ b/drivers/acpi/processor_driver.c
@@ -677,28 +677,6 @@ static int is_processor_present(acpi_handle handle)
 	return 0;
 }
 
-static
-int acpi_processor_device_add(acpi_handle handle, struct acpi_device **device)
-{
-	acpi_handle phandle;
-	struct acpi_device *pdev;
-
-
-	if (acpi_get_parent(handle, &phandle)) {
-		return -ENODEV;
-	}
-
-	if (acpi_bus_get_device(phandle, &pdev)) {
-		return -ENODEV;
-	}
-
-	if (acpi_bus_add(device, pdev, handle, ACPI_BUS_TYPE_PROCESSOR)) {
-		return -ENODEV;
-	}
-
-	return 0;
-}
-
 static void acpi_processor_hotplug_notify(acpi_handle handle,
 					  u32 event, void *data)
 {
@@ -721,7 +699,7 @@ static void acpi_processor_hotplug_notify(acpi_handle handle,
 		if (!acpi_bus_get_device(handle, &device))
 			break;
 
-		result = acpi_processor_device_add(handle, &device);
+		result = acpi_bus_add(handle, &device);
 		if (result) {
 			acpi_handle_err(handle, "Unable to add the device\n");
 			break;
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 6321cab4e5ff..25095bf57bba 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1650,25 +1650,33 @@ static int acpi_bus_scan(acpi_handle handle, bool start,
 	return ret;
 }
 
-/*
- * acpi_bus_add
+/**
+ * acpi_bus_add - Add ACPI device node objects in a given namespace scope.
+ * @handle: Root of the namespace scope to scan.
+ * @ret: Location to store a return struct acpi_device pointer.
+ *
+ * Scan a given ACPI tree (probably recently hot-plugged) and create and add
+ * found devices.
  *
- * scan a given ACPI tree and (probably recently hot-plugged)
- * create and add found devices.
+ * If no devices were found, -ENODEV is returned, but it does not mean that
+ * there has been a real error.  There just have been no suitable ACPI objects
+ * in the table trunk from which the kernel could create a device and add an
+ * appropriate driver.
  *
- * If no devices were found -ENODEV is returned which does not
- * mean that this is a real error, there just have been no suitable
- * ACPI objects in the table trunk from which the kernel could create
- * a device and add an appropriate driver.
+ * If 0 is returned, the memory location pointed to by @ret will be populated
+ * with a pointer to a struct acpi_device created while scanning the namespace.
+ * If @handle corresponds to a device node, that will be a pointer to the struct
+ * acpi_device object corresponding to @handle.  Otherwise, it will be a pointer
+ * to a struct acpi_device corresponding to one of its descendants.
+ *
+ * If an error code is returned, NULL will be stored in the memory location
+ * pointed to by @ret.
  */
-
-int
-acpi_bus_add(struct acpi_device **child,
-	     struct acpi_device *parent, acpi_handle handle, int type)
+int acpi_bus_add(acpi_handle handle, struct acpi_device **ret)
 {
 	int err;
 
-	err = acpi_bus_scan(handle, false, child);
+	err = acpi_bus_scan(handle, false, ret);
 	if (err)
 		return err;
 
-- 
cgit v1.2.3


From e3863094c6f9b2f980d6e7a5cad6b4d03a4dd579 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Fri, 21 Dec 2012 00:36:47 +0100
Subject: ACPI: Drop the second argument of acpi_bus_scan()

After the removal of acpi_start_single_object() and acpi_bus_start()
the second argument of acpi_bus_scan() is not necessary any more,
so drop it and update acpi_bus_check_add() accordingly.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Toshi Kani <toshi.kani@hp.com>
---
 drivers/acpi/scan.c | 18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 25095bf57bba..eb54f98bb728 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1551,8 +1551,8 @@ static int acpi_bus_type_and_status(acpi_handle handle, int *type,
 	return 0;
 }
 
-static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl,
-				      void *context, void **return_value)
+static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl_not_used,
+				      void *not_used, void **return_value)
 {
 	struct acpi_device *device = NULL;
 	int type;
@@ -1584,7 +1584,7 @@ static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl,
 	if (!device)
 		return AE_CTRL_DEPTH;
 
-	device->add_type = context ? ACPI_BUS_ADD_START : ACPI_BUS_ADD_MATCH;
+	device->add_type = ACPI_BUS_ADD_START;
 	acpi_hot_add_bind(device);
 
  out:
@@ -1621,18 +1621,16 @@ static acpi_status acpi_bus_device_attach(acpi_handle handle, u32 lvl_not_used,
 	return status;
 }
 
-static int acpi_bus_scan(acpi_handle handle, bool start,
-			 struct acpi_device **child)
+static int acpi_bus_scan(acpi_handle handle, struct acpi_device **child)
 {
 	void *device = NULL;
 	acpi_status status;
 	int ret = -ENODEV;
 
-	status = acpi_bus_check_add(handle, 0, (void *)start, &device);
+	status = acpi_bus_check_add(handle, 0, NULL, &device);
 	if (ACPI_SUCCESS(status))
 		acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX,
-				    acpi_bus_check_add, NULL, (void *)start,
-				    &device);
+				    acpi_bus_check_add, NULL, NULL, &device);
 
 	if (!device)
 		goto out;
@@ -1676,7 +1674,7 @@ int acpi_bus_add(acpi_handle handle, struct acpi_device **ret)
 {
 	int err;
 
-	err = acpi_bus_scan(handle, false, ret);
+	err = acpi_bus_scan(handle, ret);
 	if (err)
 		return err;
 
@@ -1782,7 +1780,7 @@ int __init acpi_scan_init(void)
 	/*
 	 * Enumerate devices in the ACPI namespace.
 	 */
-	result = acpi_bus_scan(ACPI_ROOT_OBJECT, true, &acpi_root);
+	result = acpi_bus_scan(ACPI_ROOT_OBJECT, &acpi_root);
 
 	if (!result)
 		result = acpi_bus_scan_fixed();
-- 
cgit v1.2.3


From 209d3b1743c8187c67cc75dbe9fefbcd3121fba0 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Fri, 21 Dec 2012 00:36:48 +0100
Subject: ACPI: Replace ACPI device add_type field with a match_driver flag

After the removal of the second argument of acpi_bus_scan() there is
no difference between the ACPI_BUS_ADD_MATCH and ACPI_BUS_ADD_START
add types, so the add_type field in struct acpi_device may be
replaced with a single flag.  Do that calling the flag match_driver.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Toshi Kani <toshi.kani@hp.com>
---
 drivers/acpi/scan.c | 21 +++++++++------------
 1 file changed, 9 insertions(+), 12 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index eb54f98bb728..e3aed481aed2 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -494,7 +494,7 @@ static int acpi_bus_match(struct device *dev, struct device_driver *drv)
 	struct acpi_device *acpi_dev = to_acpi_device(dev);
 	struct acpi_driver *acpi_drv = to_acpi_driver(drv);
 
-	return acpi_dev->add_type >= ACPI_BUS_ADD_MATCH
+	return acpi_dev->flags.match_driver
 		&& !acpi_match_device_ids(acpi_dev, acpi_drv->ids);
 }
 
@@ -1410,8 +1410,7 @@ static void acpi_hot_add_bind(struct acpi_device *device)
 
 static int acpi_add_single_object(struct acpi_device **child,
 				  acpi_handle handle, int type,
-				  unsigned long long sta,
-				  enum acpi_bus_add_type add_type)
+				  unsigned long long sta, bool match_driver)
 {
 	int result;
 	struct acpi_device *device;
@@ -1427,7 +1426,6 @@ static int acpi_add_single_object(struct acpi_device **child,
 	device->device_type = type;
 	device->handle = handle;
 	device->parent = acpi_bus_get_parent(handle);
-	device->add_type = add_type;
 	STRUCT_TO_INT(device->status) = sta;
 
 	acpi_device_get_busid(device);
@@ -1478,9 +1476,10 @@ static int acpi_add_single_object(struct acpi_device **child,
 	if ((result = acpi_device_set_context(device)))
 		goto end;
 
+	device->flags.match_driver = match_driver;
 	result = acpi_device_register(device);
 
-	if (device->add_type >= ACPI_BUS_ADD_MATCH)
+	if (device->flags.match_driver)
 		acpi_hot_add_bind(device);
 
 end:
@@ -1509,7 +1508,7 @@ static void acpi_bus_add_power_resource(acpi_handle handle)
 	acpi_bus_get_device(handle, &device);
 	if (!device)
 		acpi_add_single_object(&device, handle, ACPI_BUS_TYPE_POWER,
-					ACPI_STA_DEFAULT, ACPI_BUS_ADD_START);
+					ACPI_STA_DEFAULT, true);
 }
 
 static int acpi_bus_type_and_status(acpi_handle handle, int *type,
@@ -1580,11 +1579,11 @@ static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl_not_used,
 		return AE_CTRL_DEPTH;
 	}
 
-	acpi_add_single_object(&device, handle, type, sta, ACPI_BUS_ADD_BASIC);
+	acpi_add_single_object(&device, handle, type, sta, false);
 	if (!device)
 		return AE_CTRL_DEPTH;
 
-	device->add_type = ACPI_BUS_ADD_START;
+	device->flags.match_driver = true;
 	acpi_hot_add_bind(device);
 
  out:
@@ -1749,16 +1748,14 @@ static int acpi_bus_scan_fixed(void)
 	if ((acpi_gbl_FADT.flags & ACPI_FADT_POWER_BUTTON) == 0) {
 		result = acpi_add_single_object(&device, NULL,
 						ACPI_BUS_TYPE_POWER_BUTTON,
-						ACPI_STA_DEFAULT,
-						ACPI_BUS_ADD_START);
+						ACPI_STA_DEFAULT, true);
 		device_init_wakeup(&device->dev, true);
 	}
 
 	if ((acpi_gbl_FADT.flags & ACPI_FADT_SLEEP_BUTTON) == 0) {
 		result = acpi_add_single_object(&device, NULL,
 						ACPI_BUS_TYPE_SLEEP_BUTTON,
-						ACPI_STA_DEFAULT,
-						ACPI_BUS_ADD_START);
+						ACPI_STA_DEFAULT, true);
 	}
 
 	return result;
-- 
cgit v1.2.3


From 0cd6ac52b333f66ee64e50ed216ec99231092dcd Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Fri, 21 Dec 2012 00:36:49 +0100
Subject: ACPI: Make acpi_bus_scan() and acpi_bus_add() take only one argument

The callers of acpi_bus_add() usually assume that if it has
succeeded, then a struct acpi_device object has been attached to
the handle passed as the first argument.  Unfortunately, however,
this assumption is wrong, because acpi_bus_scan(), and acpi_bus_add()
too as a result, may return a pointer to a different struct
acpi_device object on success (it may be an object corresponding to
one of the descendant ACPI nodes in the namespace scope below that
handle).

For this reason, the callers of acpi_bus_add() who care about
whether or not a struct acpi_device object has been created for
its first argument need to check that using acpi_bus_get_device()
anyway, so the second argument of acpi_bus_add() is not really
useful for them.  The same observation applies to acpi_bus_scan()
executed directly from acpi_scan_init().

Therefore modify the relevant callers of acpi_bus_add() to check the
existence of the struct acpi_device in question with the help of
acpi_bus_get_device() and drop the no longer necessary second
argument of acpi_bus_add().  Accordingly, modify acpi_scan_init() to
use acpi_bus_get_device() to get acpi_root and drop the no longer
needed second argument of acpi_bus_scan().

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Toshi Kani <toshi.kani@hp.com>
---
 drivers/acpi/acpi_memhotplug.c  |  7 ++++++-
 drivers/acpi/container.c        |  7 ++++++-
 drivers/acpi/dock.c             |  4 +++-
 drivers/acpi/processor_driver.c |  8 ++++++--
 drivers/acpi/scan.c             | 38 +++++++++++---------------------------
 5 files changed, 32 insertions(+), 32 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c
index d0a7da704d49..327ab4459558 100644
--- a/drivers/acpi/acpi_memhotplug.c
+++ b/drivers/acpi/acpi_memhotplug.c
@@ -167,11 +167,16 @@ acpi_memory_get_device(acpi_handle handle,
 	 * Now add the notified device.  This creates the acpi_device
 	 * and invokes .add function
 	 */
-	result = acpi_bus_add(handle, &device);
+	result = acpi_bus_add(handle);
 	if (result) {
 		acpi_handle_warn(handle, "Cannot add acpi bus\n");
 		return -EINVAL;
 	}
+	result = acpi_bus_get_device(handle, &device);
+	if (result) {
+		acpi_handle_warn(handle, "Missing device object\n");
+		return -EINVAL;
+	}
 
       end:
 	*mem_device = acpi_driver_data(device);
diff --git a/drivers/acpi/container.c b/drivers/acpi/container.c
index 0688f83bc436..f8fb2281f34a 100644
--- a/drivers/acpi/container.c
+++ b/drivers/acpi/container.c
@@ -166,11 +166,16 @@ static void container_notify_cb(acpi_handle handle, u32 type, void *context)
 		if (!ACPI_FAILURE(status) || device)
 			break;
 
-		result = acpi_bus_add(handle, &device);
+		result = acpi_bus_add(handle);
 		if (result) {
 			acpi_handle_warn(handle, "Failed to add container\n");
 			break;
 		}
+		result = acpi_bus_get_device(handle, &device);
+		if (result) {
+			acpi_handle_warn(handle, "Missing device object\n");
+			break;
+		}
 
 		kobject_uevent(&device->dev.kobj, KOBJ_ONLINE);
 		ost_code = ACPI_OST_SC_SUCCESS;
diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c
index ff30582d2e1d..9e31b2bd93d3 100644
--- a/drivers/acpi/dock.c
+++ b/drivers/acpi/dock.c
@@ -317,9 +317,11 @@ static struct acpi_device * dock_create_acpi_device(acpi_handle handle)
 		 * no device created for this object,
 		 * so we should create one.
 		 */
-		ret = acpi_bus_add(handle, &device);
+		ret = acpi_bus_add(handle);
 		if (ret)
 			pr_debug("error adding bus, %x\n", -ret);
+
+		acpi_bus_get_device(handle, &device);
 	}
 	return device;
 }
diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c
index 18b292e12b38..0777663f443e 100644
--- a/drivers/acpi/processor_driver.c
+++ b/drivers/acpi/processor_driver.c
@@ -699,12 +699,16 @@ static void acpi_processor_hotplug_notify(acpi_handle handle,
 		if (!acpi_bus_get_device(handle, &device))
 			break;
 
-		result = acpi_bus_add(handle, &device);
+		result = acpi_bus_add(handle);
 		if (result) {
 			acpi_handle_err(handle, "Unable to add the device\n");
 			break;
 		}
-
+		result = acpi_bus_get_device(handle, &device);
+		if (result) {
+			acpi_handle_err(handle, "Missing device object\n");
+			break;
+		}
 		ost_code = ACPI_OST_SC_SUCCESS;
 		break;
 
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index e3aed481aed2..3d44c705a3a2 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1620,37 +1620,27 @@ static acpi_status acpi_bus_device_attach(acpi_handle handle, u32 lvl_not_used,
 	return status;
 }
 
-static int acpi_bus_scan(acpi_handle handle, struct acpi_device **child)
+static int acpi_bus_scan(acpi_handle handle)
 {
 	void *device = NULL;
-	acpi_status status;
-	int ret = -ENODEV;
 
-	status = acpi_bus_check_add(handle, 0, NULL, &device);
-	if (ACPI_SUCCESS(status))
+	if (ACPI_SUCCESS(acpi_bus_check_add(handle, 0, NULL, &device)))
 		acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX,
 				    acpi_bus_check_add, NULL, NULL, &device);
 
 	if (!device)
-		goto out;
+		return -ENODEV;
 
-	ret = 0;
-	status = acpi_bus_device_attach(handle, 0, NULL, NULL);
-	if (ACPI_SUCCESS(status))
+	if (ACPI_SUCCESS(acpi_bus_device_attach(handle, 0, NULL, NULL)))
 		acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX,
 				    acpi_bus_device_attach, NULL, NULL, NULL);
 
- out:
-	if (child)
-		*child = device;
-
-	return ret;
+	return 0;
 }
 
 /**
  * acpi_bus_add - Add ACPI device node objects in a given namespace scope.
  * @handle: Root of the namespace scope to scan.
- * @ret: Location to store a return struct acpi_device pointer.
  *
  * Scan a given ACPI tree (probably recently hot-plugged) and create and add
  * found devices.
@@ -1659,21 +1649,12 @@ static int acpi_bus_scan(acpi_handle handle, struct acpi_device **child)
  * there has been a real error.  There just have been no suitable ACPI objects
  * in the table trunk from which the kernel could create a device and add an
  * appropriate driver.
- *
- * If 0 is returned, the memory location pointed to by @ret will be populated
- * with a pointer to a struct acpi_device created while scanning the namespace.
- * If @handle corresponds to a device node, that will be a pointer to the struct
- * acpi_device object corresponding to @handle.  Otherwise, it will be a pointer
- * to a struct acpi_device corresponding to one of its descendants.
- *
- * If an error code is returned, NULL will be stored in the memory location
- * pointed to by @ret.
  */
-int acpi_bus_add(acpi_handle handle, struct acpi_device **ret)
+int acpi_bus_add(acpi_handle handle)
 {
 	int err;
 
-	err = acpi_bus_scan(handle, ret);
+	err = acpi_bus_scan(handle);
 	if (err)
 		return err;
 
@@ -1777,8 +1758,11 @@ int __init acpi_scan_init(void)
 	/*
 	 * Enumerate devices in the ACPI namespace.
 	 */
-	result = acpi_bus_scan(ACPI_ROOT_OBJECT, &acpi_root);
+	result = acpi_bus_scan(ACPI_ROOT_OBJECT);
+	if (result)
+		return result;
 
+	result = acpi_bus_get_device(ACPI_ROOT_OBJECT, &acpi_root);
 	if (!result)
 		result = acpi_bus_scan_fixed();
 
-- 
cgit v1.2.3


From 11909ca1cf614f9396b17d366f9e3cfcba7b4a99 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Sun, 23 Dec 2012 00:02:13 +0100
Subject: ACPI: Add .setup() and .cleanup() callbacks to struct acpi_bus_type

Add two new callbacks,.setup() and .cleanup(), struct acpi_bus_type
and modify acpi_platform_notify() to call .setup() after executing
acpi_bind_one() successfully and acpi_platform_notify_remove() to
call .cleanup() before running acpi_unbind_one().  This will allow
the users of struct acpi_bus_type, PCI in particular, to specify
operations to be executed right after the given device has been
associated with a companion struct acpi_device and right before
it's going to be detached from that companion, respectively.

The main motivation is to be able to get rid of acpi_pci_bind()
and acpi_pci_unbind(), which are horrible horrible stuff.  [In short,
there are three problems with them: The way they populate the .bind()
and .unbind() callbacks of ACPI devices is rather less than
straightforward, they require special hotplug-specific paths to be
present in the ACPI namespace scanning code and by the time
acpi_pci_unbind() is called the PCI device object in question may
not exist any more.]

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Toshi Kani <toshi.kani@hp.com>
---
 drivers/acpi/glue.c | 50 +++++++++++++++++++++++++++++++++++---------------
 1 file changed, 35 insertions(+), 15 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c
index 01551840d236..ac00b882e75d 100644
--- a/drivers/acpi/glue.c
+++ b/drivers/acpi/glue.c
@@ -63,6 +63,9 @@ static struct acpi_bus_type *acpi_get_bus_type(struct bus_type *type)
 {
 	struct acpi_bus_type *tmp, *ret = NULL;
 
+	if (!type)
+		return NULL;
+
 	down_read(&bus_type_sem);
 	list_for_each_entry(tmp, &bus_type_list, list) {
 		if (tmp->bus == type) {
@@ -264,28 +267,39 @@ static int acpi_platform_notify(struct device *dev)
 {
 	struct acpi_bus_type *type;
 	acpi_handle handle;
-	int ret = -EINVAL;
+	int ret;
 
 	ret = acpi_bind_one(dev, NULL);
-	if (!ret)
-		goto out;
-
-	if (!dev->bus || !dev->parent) {
+	if (ret && (!dev->bus || !dev->parent)) {
 		/* bridge devices genernally haven't bus or parent */
 		ret = acpi_find_bridge_device(dev, &handle);
-		goto end;
+		if (!ret) {
+			ret = acpi_bind_one(dev, handle);
+			if (ret)
+				goto out;
+		}
 	}
+
 	type = acpi_get_bus_type(dev->bus);
-	if (!type) {
-		DBG("No ACPI bus support for %s\n", dev_name(dev));
-		ret = -EINVAL;
-		goto end;
+	if (ret) {
+		if (!type || !type->find_device) {
+			DBG("No ACPI bus support for %s\n", dev_name(dev));
+			ret = -EINVAL;
+			goto out;
+		}
+
+		ret = type->find_device(dev, &handle);
+		if (ret) {
+			DBG("Unable to get handle for %s\n", dev_name(dev));
+			goto out;
+		}
+		ret = acpi_bind_one(dev, handle);
+		if (ret)
+			goto out;
 	}
-	if ((ret = type->find_device(dev, &handle)) != 0)
-		DBG("Can't get handler for %s\n", dev_name(dev));
- end:
-	if (!ret)
-		acpi_bind_one(dev, handle);
+
+	if (type && type->setup)
+		type->setup(dev);
 
  out:
 #if ACPI_GLUE_DEBUG
@@ -304,6 +318,12 @@ static int acpi_platform_notify(struct device *dev)
 
 static int acpi_platform_notify_remove(struct device *dev)
 {
+	struct acpi_bus_type *type;
+
+	type = acpi_get_bus_type(dev->bus);
+	if (type && type->cleanup)
+		type->cleanup(dev);
+
 	acpi_unbind_one(dev);
 	return 0;
 }
-- 
cgit v1.2.3


From d2e5f0c16ad60a7208fd371233e63b73c990ece2 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Sun, 23 Dec 2012 00:02:44 +0100
Subject: ACPI / PCI: Rework the setup and cleanup of device wakeup

Currently, the ACPI wakeup capability of PCI devices is set up
in two different places, partially in acpi_pci_bind() where
runtime wakeup is initialized and partially in
platform_pci_wakeup_init(), where system wakeup is initialized.
The cleanup is only done in acpi_pci_unbind() and it only covers
runtime wakeup.

Use the new .setup() and .cleanup() callbacks in struct acpi_bus_type
to consolidate that code and do the setup and the cleanup each in one
place.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Toshi Kani <toshi.kani@hp.com>
---
 drivers/acpi/device_pm.c | 2 +-
 drivers/acpi/pci_bind.c  | 5 -----
 2 files changed, 1 insertion(+), 6 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c
index f09dc987cf17..e4f6ac95595c 100644
--- a/drivers/acpi/device_pm.c
+++ b/drivers/acpi/device_pm.c
@@ -353,7 +353,7 @@ int acpi_pm_device_sleep_wake(struct device *dev, bool enable)
  * acpi_dev_pm_get_node - Get ACPI device node for the given physical device.
  * @dev: Device to get the ACPI node for.
  */
-static struct acpi_device *acpi_dev_pm_get_node(struct device *dev)
+struct acpi_device *acpi_dev_pm_get_node(struct device *dev)
 {
 	acpi_handle handle = DEVICE_ACPI_HANDLE(dev);
 	struct acpi_device *adev;
diff --git a/drivers/acpi/pci_bind.c b/drivers/acpi/pci_bind.c
index a1dee29beed3..bbddcc9c894f 100644
--- a/drivers/acpi/pci_bind.c
+++ b/drivers/acpi/pci_bind.c
@@ -43,8 +43,6 @@ static int acpi_pci_unbind(struct acpi_device *device)
 	if (!dev)
 		goto out;
 
-	device_set_run_wake(&dev->dev, false);
-	pci_acpi_remove_pm_notifier(device);
 	acpi_power_resource_unregister_device(&dev->dev, device->handle);
 
 	if (!dev->subordinate)
@@ -71,10 +69,7 @@ static int acpi_pci_bind(struct acpi_device *device)
 	if (!dev)
 		return 0;
 
-	pci_acpi_add_pm_notifier(device, dev);
 	acpi_power_resource_register_device(&dev->dev, device->handle);
-	if (device->wakeup.flags.run_wake)
-		device_set_run_wake(&dev->dev, true);
 
 	/*
 	 * Install the 'bind' function to facilitate callbacks for
-- 
cgit v1.2.3


From 38a9a67a281eeebcd7cccf87f0e371f58ae625e3 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Sun, 23 Dec 2012 00:02:54 +0100
Subject: ACPI / PCI: Move the _PRT setup and cleanup code to pci-acpi.c

Move the code related to _PRT setup and removal and to power
resources from acpi_pci_bind() and acpi_pci_unbind() to the .setup()
and .cleanup() callbacks in acpi_pci_bus and remove acpi_pci_bind()
and acpi_pci_unbind() that have no purpose any more.  Accordingly,
remove the code related to device .bind() and .unbind() operations
from the ACPI PCI root bridge driver.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Toshi Kani <toshi.kani@hp.com>
---
 drivers/acpi/Makefile   |   2 +-
 drivers/acpi/pci_bind.c | 117 ------------------------------------------------
 drivers/acpi/pci_root.c |  31 -------------
 3 files changed, 1 insertion(+), 149 deletions(-)
 delete mode 100644 drivers/acpi/pci_bind.c

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile
index 2a4502becd13..4ee2e753306a 100644
--- a/drivers/acpi/Makefile
+++ b/drivers/acpi/Makefile
@@ -37,7 +37,7 @@ acpi-y				+= resource.o
 acpi-y				+= processor_core.o
 acpi-y				+= ec.o
 acpi-$(CONFIG_ACPI_DOCK)	+= dock.o
-acpi-y				+= pci_root.o pci_link.o pci_irq.o pci_bind.o
+acpi-y				+= pci_root.o pci_link.o pci_irq.o
 acpi-y				+= acpi_platform.o
 acpi-y				+= power.o
 acpi-y				+= event.o
diff --git a/drivers/acpi/pci_bind.c b/drivers/acpi/pci_bind.c
deleted file mode 100644
index bbddcc9c894f..000000000000
--- a/drivers/acpi/pci_bind.c
+++ /dev/null
@@ -1,117 +0,0 @@
-/*
- *  pci_bind.c - ACPI PCI Device Binding ($Revision: 2 $)
- *
- *  Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com>
- *  Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or (at
- *  your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful, but
- *  WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- */
-
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/pci.h>
-#include <linux/pci-acpi.h>
-#include <linux/acpi.h>
-#include <linux/pm_runtime.h>
-#include <acpi/acpi_bus.h>
-#include <acpi/acpi_drivers.h>
-
-#define _COMPONENT		ACPI_PCI_COMPONENT
-ACPI_MODULE_NAME("pci_bind");
-
-static int acpi_pci_unbind(struct acpi_device *device)
-{
-	struct pci_dev *dev;
-
-	dev = acpi_get_pci_dev(device->handle);
-	if (!dev)
-		goto out;
-
-	acpi_power_resource_unregister_device(&dev->dev, device->handle);
-
-	if (!dev->subordinate)
-		goto out;
-
-	acpi_pci_irq_del_prt(pci_domain_nr(dev->bus), dev->subordinate->number);
-
-	device->ops.bind = NULL;
-	device->ops.unbind = NULL;
-
-out:
-	pci_dev_put(dev);
-	return 0;
-}
-
-static int acpi_pci_bind(struct acpi_device *device)
-{
-	acpi_status status;
-	acpi_handle handle;
-	unsigned char bus;
-	struct pci_dev *dev;
-
-	dev = acpi_get_pci_dev(device->handle);
-	if (!dev)
-		return 0;
-
-	acpi_power_resource_register_device(&dev->dev, device->handle);
-
-	/*
-	 * Install the 'bind' function to facilitate callbacks for
-	 * children of the P2P bridge.
-	 */
-	if (dev->subordinate) {
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-				  "Device %04x:%02x:%02x.%d is a PCI bridge\n",
-				  pci_domain_nr(dev->bus), dev->bus->number,
-				  PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn)));
-		device->ops.bind = acpi_pci_bind;
-		device->ops.unbind = acpi_pci_unbind;
-	}
-
-	/*
-	 * Evaluate and parse _PRT, if exists.  This code allows parsing of
-	 * _PRT objects within the scope of non-bridge devices.  Note that
-	 * _PRTs within the scope of a PCI bridge assume the bridge's
-	 * subordinate bus number.
-	 *
-	 * TBD: Can _PRTs exist within the scope of non-bridge PCI devices?
-	 */
-	status = acpi_get_handle(device->handle, METHOD_NAME__PRT, &handle);
-	if (ACPI_FAILURE(status))
-		goto out;
-
-	if (dev->subordinate)
-		bus = dev->subordinate->number;
-	else
-		bus = dev->bus->number;
-
-	acpi_pci_irq_add_prt(device->handle, pci_domain_nr(dev->bus), bus);
-
-out:
-	pci_dev_put(dev);
-	return 0;
-}
-
-int acpi_pci_bind_root(struct acpi_device *device)
-{
-	device->ops.bind = acpi_pci_bind;
-	device->ops.unbind = acpi_pci_unbind;
-
-	return 0;
-}
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 0e593a203ff8..22a8458b4ec9 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -186,21 +186,6 @@ static acpi_status try_get_root_bridge_busnr(acpi_handle handle,
 	return AE_OK;
 }
 
-static void acpi_pci_bridge_scan(struct acpi_device *device)
-{
-	int status;
-	struct acpi_device *child = NULL;
-
-	if (device->flags.bus_address)
-		if (device->parent && device->parent->ops.bind) {
-			status = device->parent->ops.bind(device);
-			if (!status) {
-				list_for_each_entry(child, &device->children, node)
-					acpi_pci_bridge_scan(child);
-			}
-		}
-}
-
 static u8 pci_osc_uuid_str[] = "33DB4D5B-1FF7-401C-9657-7441C03DD766";
 
 static acpi_status acpi_pci_run_osc(acpi_handle handle,
@@ -450,7 +435,6 @@ static int acpi_pci_root_add(struct acpi_device *device)
 	int result;
 	struct acpi_pci_root *root;
 	acpi_handle handle;
-	struct acpi_device *child;
 	struct acpi_pci_driver *driver;
 	u32 flags, base_flags;
 	bool is_osc_granted = false;
@@ -602,21 +586,6 @@ static int acpi_pci_root_add(struct acpi_device *device)
 		goto out_del_root;
 	}
 
-	/*
-	 * Attach ACPI-PCI Context
-	 * -----------------------
-	 * Thus binding the ACPI and PCI devices.
-	 */
-	result = acpi_pci_bind_root(device);
-	if (result)
-		goto out_del_root;
-
-	/*
-	 * Scan and bind all _ADR-Based Devices
-	 */
-	list_for_each_entry(child, &device->children, node)
-		acpi_pci_bridge_scan(child);
-
 	/* ASPM setting */
 	if (is_osc_granted) {
 		if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_ASPM)
-- 
cgit v1.2.3


From 3eec5f7a1955ead549020ec2f60235ea6a4a2252 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Sun, 23 Dec 2012 00:03:03 +0100
Subject: ACPI: Drop ACPI device .bind() and .unbind() callbacks

Drop the .bind() and .unbind() that have no more users from
struct acpi_device_ops and remove all of the code referring to
them from drivers/acpi/scan.c.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Toshi Kani <toshi.kani@hp.com>
---
 drivers/acpi/scan.c | 22 ----------------------
 1 file changed, 22 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 3d44c705a3a2..f8a0d0f7d197 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1385,29 +1385,11 @@ static int acpi_bus_remove(struct acpi_device *dev, int rmdevice)
 	if (!rmdevice)
 		return 0;
 
-	/*
-	 * unbind _ADR-Based Devices when hot removal
-	 */
-	if (dev->flags.bus_address) {
-		if ((dev->parent) && (dev->parent->ops.unbind))
-			dev->parent->ops.unbind(dev);
-	}
 	acpi_device_unregister(dev, ACPI_BUS_REMOVAL_EJECT);
 
 	return 0;
 }
 
-/*
- * acpi_hot_add_bind - Bind _ADR-based devices on hot-add.
- * @device: ACPI device node to bind.
- */
-static void acpi_hot_add_bind(struct acpi_device *device)
-{
-	if (device->flags.bus_address
-	    && device->parent && device->parent->ops.bind)
-		device->parent->ops.bind(device);
-}
-
 static int acpi_add_single_object(struct acpi_device **child,
 				  acpi_handle handle, int type,
 				  unsigned long long sta, bool match_driver)
@@ -1479,9 +1461,6 @@ static int acpi_add_single_object(struct acpi_device **child,
 	device->flags.match_driver = match_driver;
 	result = acpi_device_register(device);
 
-	if (device->flags.match_driver)
-		acpi_hot_add_bind(device);
-
 end:
 	if (!result) {
 		acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer);
@@ -1584,7 +1563,6 @@ static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl_not_used,
 		return AE_CTRL_DEPTH;
 
 	device->flags.match_driver = true;
-	acpi_hot_add_bind(device);
 
  out:
 	if (!*return_value)
-- 
cgit v1.2.3


From f95988de06ea62ef5bd861f06e9ef56cea405ed1 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Mon, 7 Jan 2013 21:17:02 +0100
Subject: ACPI / scan: Treat power resources in a special way

Commit 805d410 (ACPI: Separate adding ACPI device objects from
probing ACPI drivers) introduced an ACPI power resources management
regression, because it didn't ensure that the power resources
driver bind to the struct acpi_device objects corresponding
to power resources as soon as they were created.  As a result,
ACPI power management routines may attempt to access power resource
objects before they are ready to use.

To fix this problem, tell the acpi_add_single_object() in
acpi_bus_check_add() to probe the driver for objects of type
ACPI_BUS_TYPE_POWER.  This fix has been verified to work on
HP nx6325 where the problem was first observed.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Toshi Kani <toshi.kani@hp.com>
---
 drivers/acpi/scan.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index f8a0d0f7d197..e380345b643a 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1558,7 +1558,8 @@ static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl_not_used,
 		return AE_CTRL_DEPTH;
 	}
 
-	acpi_add_single_object(&device, handle, type, sta, false);
+	acpi_add_single_object(&device, handle, type, sta,
+			       type == ACPI_BUS_TYPE_POWER);
 	if (!device)
 		return AE_CTRL_DEPTH;
 
-- 
cgit v1.2.3


From 75c8044fb38051713000e0d151852f5f9614f77b Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Wed, 19 Dec 2012 05:36:49 +0000
Subject: ACPICA: Cleanup updated comments.

This is a cosmetic patch only. Comparison of the resulting binary showed
only line number differences.

This patch does not affect the generation of the Linux binary.
This patch decreases 558 lines of 20121018 divergence.diff.

This patch reduces the source code diff between Linux and ACPICA by
cleaning the comments that already have been updated in ACPICA.

There is no extra indentation done in this patch. Even the empty line
deletions and insertions are also splitted into another cleanup patch so
that this patch can be easily reviewed, and the binary differences can be
held to a lowest level.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/aclocal.h   | 14 +++++++++-----
 drivers/acpi/acpica/acobject.h  |  2 +-
 drivers/acpi/acpica/acpredef.h  | 14 ++++++++------
 drivers/acpi/acpica/dsopcode.c  | 14 +++++++-------
 drivers/acpi/acpica/evgpe.c     |  4 ++--
 drivers/acpi/acpica/evxface.c   | 21 ++++++++++-----------
 drivers/acpi/acpica/evxfevnt.c  |  4 ++--
 drivers/acpi/acpica/evxfgpe.c   |  8 ++++----
 drivers/acpi/acpica/exconfig.c  |  8 ++++++--
 drivers/acpi/acpica/exmutex.c   |  2 +-
 drivers/acpi/acpica/exregion.c  | 12 ++++++++----
 drivers/acpi/acpica/hwesleep.c  |  1 -
 drivers/acpi/acpica/hwregs.c    |  2 +-
 drivers/acpi/acpica/hwxface.c   | 10 +++++-----
 drivers/acpi/acpica/hwxfsleep.c |  7 ++++---
 drivers/acpi/acpica/nsdump.c    |  4 ++--
 drivers/acpi/acpica/nsinit.c    |  5 -----
 drivers/acpi/acpica/nsnames.c   |  3 ++-
 drivers/acpi/acpica/nspredef.c  |  1 -
 drivers/acpi/acpica/nsxfeval.c  |  1 +
 drivers/acpi/acpica/tbfadt.c    |  5 +++--
 drivers/acpi/acpica/utglobal.c  |  1 +
 drivers/acpi/acpica/utobject.c  |  2 +-
 drivers/acpi/acpica/utxferror.c |  4 ++--
 24 files changed, 80 insertions(+), 69 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h
index ff8bd0061e8b..3453ea68a296 100644
--- a/drivers/acpi/acpica/aclocal.h
+++ b/drivers/acpi/acpica/aclocal.h
@@ -189,11 +189,10 @@ struct acpi_namespace_node {
 #define ANOBJ_EVALUATED                 0x20	/* Set on first evaluation of node */
 #define ANOBJ_ALLOCATED_BUFFER          0x40	/* Method AML buffer is dynamic (install_method) */
 
-#define ANOBJ_IS_EXTERNAL               0x08	/* i_aSL only: This object created via External() */
-#define ANOBJ_METHOD_NO_RETVAL          0x10	/* i_aSL only: Method has no return value */
-#define ANOBJ_METHOD_SOME_NO_RETVAL     0x20	/* i_aSL only: Method has at least one return value */
-#define ANOBJ_IS_BIT_OFFSET             0x40	/* i_aSL only: Reference is a bit offset */
-#define ANOBJ_IS_REFERENCED             0x80	/* i_aSL only: Object was referenced */
+#define ANOBJ_IS_EXTERNAL               0x08	/* iASL only: This object created via External() */
+#define ANOBJ_METHOD_NO_RETVAL          0x10	/* iASL only: Method has no return value */
+#define ANOBJ_METHOD_SOME_NO_RETVAL     0x20	/* iASL only: Method has at least one return value */
+#define ANOBJ_IS_REFERENCED             0x80	/* iASL only: Object was referenced */
 
 /* Internal ACPI table management - master table list */
 
@@ -416,6 +415,10 @@ struct acpi_gpe_notify_object {
 	struct acpi_gpe_notify_object *next;
 };
 
+/*
+ * GPE dispatch info. At any time, the GPE can have at most one type
+ * of dispatch - Method, Handler, or Implicit Notify.
+ */
 union acpi_gpe_dispatch_info {
 	struct acpi_namespace_node *method_node;	/* Method node for this GPE level */
 	struct acpi_gpe_handler_info *handler;  /* Installed GPE handler */
@@ -679,6 +682,7 @@ struct acpi_opcode_info {
 	u8 type;		/* Opcode type */
 };
 
+/* Value associated with the parse object */
 union acpi_parse_value {
 	u64 integer;		/* Integer constant (Up to 64 bits) */
 	u32 size;		/* bytelist or field size */
diff --git a/drivers/acpi/acpica/acobject.h b/drivers/acpi/acpica/acobject.h
index 24eb9eac9514..921262ea46d7 100644
--- a/drivers/acpi/acpica/acobject.h
+++ b/drivers/acpi/acpica/acobject.h
@@ -307,7 +307,7 @@ struct acpi_object_addr_handler {
 	struct acpi_namespace_node *node;	/* Parent device */
 	void *context;
 	acpi_adr_space_setup setup;
-	union acpi_operand_object *region_list;	/* regions using this handler */
+	union acpi_operand_object *region_list;	/* Regions using this handler */
 	union acpi_operand_object *next;
 };
 
diff --git a/drivers/acpi/acpica/acpredef.h b/drivers/acpi/acpica/acpredef.h
index 9dfa1c83bd4e..55fff568561e 100644
--- a/drivers/acpi/acpica/acpredef.h
+++ b/drivers/acpi/acpica/acpredef.h
@@ -1,7 +1,6 @@
 /******************************************************************************
  *
  * Name: acpredef - Information table for ACPI predefined methods and objects
- *              $Revision: 1.1 $
  *
  *****************************************************************************/
 
@@ -51,13 +50,13 @@
  *
  * 1) PTYPE1 packages do not contain sub-packages.
  *
- * ACPI_PTYPE1_FIXED: Fixed length, 1 or 2 object types:
+ * ACPI_PTYPE1_FIXED: Fixed-length length, 1 or 2 object types:
  *      object type
  *      count
  *      object type
  *      count
  *
- * ACPI_PTYPE1_VAR: Variable length:
+ * ACPI_PTYPE1_VAR: Variable-length length:
  *      object type (Int/Buf/Ref)
  *
  * ACPI_PTYPE1_OPTION: Package has some required and some optional elements
@@ -85,10 +84,10 @@
  *      count
  *      (Used for _CST)
  *
- * ACPI_PTYPE2_FIXED: Each subpackage is of fixed length
+ * ACPI_PTYPE2_FIXED: Each subpackage is of Fixed-length
  *      (Used for _PRT)
  *
- * ACPI_PTYPE2_MIN: Each subpackage has a variable but minimum length
+ * ACPI_PTYPE2_MIN: Each subpackage has a Variable-length but minimum length
  *      (Used for _HPX)
  *
  * ACPI_PTYPE2_REV_FIXED: Revision at start, each subpackage is Fixed-length
@@ -124,7 +123,8 @@ enum acpi_return_package_types {
  * These are the names that can actually be evaluated via acpi_evaluate_object.
  * Not present in this table are the following:
  *
- *      1) Predefined/Reserved names that are never evaluated via acpi_evaluate_object:
+ *      1) Predefined/Reserved names that are never evaluated via
+ *         acpi_evaluate_object:
  *          _Lxx and _Exx GPE methods
  *          _Qxx EC methods
  *          _T_x compiler temporary variables
@@ -149,6 +149,8 @@ enum acpi_return_package_types {
  * information about the expected structure of the package. This information
  * is saved here (rather than in a separate table) in order to minimize the
  * overall size of the stored data.
+ *
+ * Note: The additional braces are intended to promote portability.
  */
 static const union acpi_predefined_info predefined_names[] = {
 	{{"_AC0", 0, ACPI_RTYPE_INTEGER}},
diff --git a/drivers/acpi/acpica/dsopcode.c b/drivers/acpi/acpica/dsopcode.c
index d09c6b4bab2c..25d19252a13d 100644
--- a/drivers/acpi/acpica/dsopcode.c
+++ b/drivers/acpi/acpica/dsopcode.c
@@ -486,18 +486,18 @@ acpi_ds_eval_table_region_operands(struct acpi_walk_state *walk_state,
 	ACPI_FUNCTION_TRACE_PTR(ds_eval_table_region_operands, op);
 
 	/*
-	 * This is where we evaluate the signature_string and oem_iDString
-	 * and oem_table_iDString of the data_table_region declaration
+	 * This is where we evaluate the Signature string, oem_id string,
+	 * and oem_table_id string of the Data Table Region declaration
 	 */
 	node = op->common.node;
 
-	/* next_op points to signature_string op */
+	/* next_op points to Signature string op */
 
 	next_op = op->common.value.arg;
 
 	/*
-	 * Evaluate/create the signature_string and oem_iDString
-	 * and oem_table_iDString operands
+	 * Evaluate/create the Signature string, oem_id string,
+	 * and oem_table_id string operands
 	 */
 	status = acpi_ds_create_operands(walk_state, next_op);
 	if (ACPI_FAILURE(status)) {
@@ -505,8 +505,8 @@ acpi_ds_eval_table_region_operands(struct acpi_walk_state *walk_state,
 	}
 
 	/*
-	 * Resolve the signature_string and oem_iDString
-	 * and oem_table_iDString operands
+	 * Resolve the Signature string, oem_id string,
+	 * and oem_table_id string operands
 	 */
 	status = acpi_ex_resolve_operands(op->common.aml_opcode,
 					  ACPI_WALK_OPERANDS, walk_state);
diff --git a/drivers/acpi/acpica/evgpe.c b/drivers/acpi/acpica/evgpe.c
index 36d120574423..a137ce813c50 100644
--- a/drivers/acpi/acpica/evgpe.c
+++ b/drivers/acpi/acpica/evgpe.c
@@ -561,8 +561,8 @@ static void ACPI_SYSTEM_XFACE acpi_ev_asynch_execute_gpe_method(void *context)
 			status = AE_NO_MEMORY;
 		} else {
 			/*
-			 * Invoke the GPE Method (_Lxx, _Exx) i.e., evaluate the _Lxx/_Exx
-			 * control method that corresponds to this GPE
+			 * Invoke the GPE Method (_Lxx, _Exx) i.e., evaluate the
+			 * _Lxx/_Exx control method that corresponds to this GPE
 			 */
 			info->prefix_node =
 			    local_gpe_event_info->dispatch.method_node;
diff --git a/drivers/acpi/acpica/evxface.c b/drivers/acpi/acpica/evxface.c
index ae668f32cf16..76cfe71c6b28 100644
--- a/drivers/acpi/acpica/evxface.c
+++ b/drivers/acpi/acpica/evxface.c
@@ -56,13 +56,13 @@ ACPI_MODULE_NAME("evxface")
  *
  * FUNCTION:    acpi_install_notify_handler
  *
- * PARAMETERS:  Device          - The device for which notifies will be handled
+ * PARAMETERS:  device          - The device for which notifies will be handled
  *              handler_type    - The type of handler:
  *                                  ACPI_SYSTEM_NOTIFY: System Handler (00-7F)
  *                                  ACPI_DEVICE_NOTIFY: Device Handler (80-FF)
  *                                  ACPI_ALL_NOTIFY:    Both System and Device
- *              Handler         - Address of the handler
- *              Context         - Value passed to the handler on each GPE
+ *              handler         - Address of the handler
+ *              context         - Value passed to the handler on each GPE
  *
  * RETURN:      Status
  *
@@ -217,12 +217,12 @@ ACPI_EXPORT_SYMBOL(acpi_install_notify_handler)
  *
  * FUNCTION:    acpi_remove_notify_handler
  *
- * PARAMETERS:  Device          - The device for which the handler is installed
+ * PARAMETERS:  device          - The device for which the handler is installed
  *              handler_type    - The type of handler:
  *                                  ACPI_SYSTEM_NOTIFY: System Handler (00-7F)
  *                                  ACPI_DEVICE_NOTIFY: Device Handler (80-FF)
  *                                  ACPI_ALL_NOTIFY:    Both System and Device
- *              Handler         - Address of the handler
+ *              handler         - Address of the handler
  *
  * RETURN:      Status
  *
@@ -249,7 +249,7 @@ acpi_remove_notify_handler(acpi_handle device,
 	    (handler_type > ACPI_MAX_NOTIFY_HANDLER_TYPE)) {
 		return_ACPI_STATUS(AE_BAD_PARAMETER);
 	}
-	/* Make sure all deferred tasks are completed */
+	/* Make sure all deferred notify tasks are completed */
 
 	acpi_os_wait_events_complete();
 
@@ -596,7 +596,7 @@ acpi_install_gpe_handler(acpi_handle gpe_device,
 		return_ACPI_STATUS(status);
 	}
 
-	/* Allocate memory for the handler object */
+	/* Allocate and init handler object (before lock) */
 
 	handler = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_gpe_handler_info));
 	if (!handler) {
@@ -622,7 +622,6 @@ acpi_install_gpe_handler(acpi_handle gpe_device,
 		goto free_and_exit;
 	}
 
-	/* Allocate and init handler object */
 
 	handler->address = address;
 	handler->context = context;
@@ -631,7 +630,7 @@ acpi_install_gpe_handler(acpi_handle gpe_device,
 			(ACPI_GPE_XRUPT_TYPE_MASK | ACPI_GPE_DISPATCH_MASK);
 
 	/*
-	 * If the GPE is associated with a method, it might have been enabled
+	 * If the GPE is associated with a method, it may have been enabled
 	 * automatically during initialization, in which case it has to be
 	 * disabled now to avoid spurious execution of the handler.
 	 */
@@ -646,7 +645,7 @@ acpi_install_gpe_handler(acpi_handle gpe_device,
 
 	gpe_event_info->dispatch.handler = handler;
 
-	/* Setup up dispatch flags to indicate handler (vs. method) */
+	/* Setup up dispatch flags to indicate handler (vs. method/notify) */
 
 	gpe_event_info->flags &=
 	    ~(ACPI_GPE_XRUPT_TYPE_MASK | ACPI_GPE_DISPATCH_MASK);
@@ -697,7 +696,7 @@ acpi_remove_gpe_handler(acpi_handle gpe_device,
 		return_ACPI_STATUS(AE_BAD_PARAMETER);
 	}
 
-	/* Make sure all deferred tasks are completed */
+	/* Make sure all deferred GPE tasks are completed */
 
 	acpi_os_wait_events_complete();
 
diff --git a/drivers/acpi/acpica/evxfevnt.c b/drivers/acpi/acpica/evxfevnt.c
index 35520c6eeefb..ee6e96c9835a 100644
--- a/drivers/acpi/acpica/evxfevnt.c
+++ b/drivers/acpi/acpica/evxfevnt.c
@@ -210,8 +210,8 @@ ACPI_EXPORT_SYMBOL(acpi_enable_event)
  *
  * FUNCTION:    acpi_disable_event
  *
- * PARAMETERS:  Event           - The fixed eventto be enabled
- *              Flags           - Reserved
+ * PARAMETERS:  event           - The fixed event to be disabled
+ *              flags           - Reserved
  *
  * RETURN:      Status
  *
diff --git a/drivers/acpi/acpica/evxfgpe.c b/drivers/acpi/acpica/evxfgpe.c
index 3f30e753b652..d8095c1bda11 100644
--- a/drivers/acpi/acpica/evxfgpe.c
+++ b/drivers/acpi/acpica/evxfgpe.c
@@ -51,7 +51,7 @@
 ACPI_MODULE_NAME("evxfgpe")
 
 #if (!ACPI_REDUCED_HARDWARE)	/* Entire module */
-/******************************************************************************
+/*******************************************************************************
  *
  * FUNCTION:    acpi_update_all_gpes
  *
@@ -225,7 +225,7 @@ acpi_setup_gpe_for_wake(acpi_handle wake_device,
 		    ACPI_CAST_PTR(struct acpi_namespace_node, wake_device);
 	}
 
-	/* Validate WakeDevice is of type Device */
+	/* Validate wake_device is of type Device */
 
 	if (device_node->type != ACPI_TYPE_DEVICE) {
 		return_ACPI_STATUS (AE_BAD_PARAMETER);
@@ -432,8 +432,8 @@ ACPI_EXPORT_SYMBOL(acpi_clear_gpe)
  *
  * PARAMETERS:  gpe_device      - Parent GPE Device. NULL for GPE0/GPE1
  *              gpe_number      - GPE level within the GPE block
- *              event_status    - Where the current status of the event will
- *                                be returned
+ *              event_status        - Where the current status of the event
+ *                                    will be returned
  *
  * RETURN:      Status
  *
diff --git a/drivers/acpi/acpica/exconfig.c b/drivers/acpi/acpica/exconfig.c
index 16219bde48da..9ad64204495e 100644
--- a/drivers/acpi/acpica/exconfig.c
+++ b/drivers/acpi/acpica/exconfig.c
@@ -120,7 +120,11 @@ acpi_ex_add_table(u32 table_index,
 	acpi_ns_exec_module_code_list();
 	acpi_ex_enter_interpreter();
 
-	/* Update GPEs for any new _Lxx/_Exx methods. Ignore errors */
+	/*
+	 * Update GPEs for any new _Lxx/_Exx methods. Ignore errors. The host is
+	 * responsible for discovering any new wake GPEs by running _PRW methods
+	 * that may have been loaded by this table.
+	 */
 
 	status = acpi_tb_get_owner_id(table_index, &owner_id);
 	if (ACPI_SUCCESS(status)) {
@@ -158,7 +162,7 @@ acpi_ex_load_table_op(struct acpi_walk_state *walk_state,
 
 	ACPI_FUNCTION_TRACE(ex_load_table_op);
 
-	/* Validate lengths for the signature_string, OEMIDString, OEMtable_iD */
+	/* Validate lengths for the Signature, oem_id, and oem_table_id strings */
 
 	if ((operand[0]->string.length > ACPI_NAME_SIZE) ||
 	    (operand[1]->string.length > ACPI_OEM_ID_SIZE) ||
diff --git a/drivers/acpi/acpica/exmutex.c b/drivers/acpi/acpica/exmutex.c
index d1f449d93dcf..900a25155331 100644
--- a/drivers/acpi/acpica/exmutex.c
+++ b/drivers/acpi/acpica/exmutex.c
@@ -377,7 +377,7 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc,
 		return_ACPI_STATUS(AE_AML_MUTEX_NOT_ACQUIRED);
 	}
 
-	/* Must have a valid thread. */
+	/* Must have a valid thread ID */
 	if (!walk_state->thread) {
 		ACPI_ERROR((AE_INFO,
 			    "Cannot release Mutex [%4.4s], null thread info",
diff --git a/drivers/acpi/acpica/exregion.c b/drivers/acpi/acpica/exregion.c
index 1db2c0bfde0b..0a01e19c3190 100644
--- a/drivers/acpi/acpica/exregion.c
+++ b/drivers/acpi/acpica/exregion.c
@@ -142,9 +142,9 @@ acpi_ex_system_memory_space_handler(u32 function,
 		}
 
 		/*
-		 * Attempt to map from the requested address to the end of the region.
-		 * However, we will never map more than one page, nor will we cross
-		 * a page boundary.
+		 * October 2009: Attempt to map from the requested address to the
+		 * end of the region. However, we will never map more than one
+		 * page, nor will we cross a page boundary.
 		 */
 		map_length = (acpi_size)
 		    ((mem_info->address + mem_info->length) - address);
@@ -154,7 +154,11 @@ acpi_ex_system_memory_space_handler(u32 function,
 		 * a page boundary, just map up to the page boundary, do not cross.
 		 * On some systems, crossing a page boundary while mapping regions
 		 * can cause warnings if the pages have different attributes
-		 * due to resource management
+		 * due to resource management.
+		 *
+		 * This has the added benefit of constraining a single mapping to
+		 * one page, which is similar to the original code that used a 4k
+		 * maximum window.
 		 */
 		page_boundary_map_length =
 		    ACPI_ROUND_UP(address, ACPI_DEFAULT_PAGE_SIZE) - address;
diff --git a/drivers/acpi/acpica/hwesleep.c b/drivers/acpi/acpica/hwesleep.c
index 94996f9ae3ad..6c0b1a9d5a8c 100644
--- a/drivers/acpi/acpica/hwesleep.c
+++ b/drivers/acpi/acpica/hwesleep.c
@@ -200,7 +200,6 @@ acpi_status acpi_hw_extended_wake_prep(u8 sleep_state)
  * FUNCTION:    acpi_hw_extended_wake
  *
  * PARAMETERS:  sleep_state         - Which sleep state we just exited
- *              flags               - Reserved, set to zero
  *
  * RETURN:      Status
  *
diff --git a/drivers/acpi/acpica/hwregs.c b/drivers/acpi/acpica/hwregs.c
index f4e57503576b..165395f1f715 100644
--- a/drivers/acpi/acpica/hwregs.c
+++ b/drivers/acpi/acpica/hwregs.c
@@ -485,7 +485,7 @@ acpi_status acpi_hw_register_write(u32 register_id, u32 value)
 						&acpi_gbl_xpm1b_status);
 		break;
 
-	case ACPI_REGISTER_PM1_ENABLE:	/* PM1 A/B: 16-bit access */
+	case ACPI_REGISTER_PM1_ENABLE:	/* PM1 A/B: 16-bit access each */
 
 		status = acpi_hw_write_multiple(value,
 						&acpi_gbl_xpm1a_enable,
diff --git a/drivers/acpi/acpica/hwxface.c b/drivers/acpi/acpica/hwxface.c
index 05a154c3c9ac..e835645dde97 100644
--- a/drivers/acpi/acpica/hwxface.c
+++ b/drivers/acpi/acpica/hwxface.c
@@ -80,10 +80,10 @@ acpi_status acpi_reset(void)
 
 	if (reset_reg->space_id == ACPI_ADR_SPACE_SYSTEM_IO) {
 		/*
-		 * For I/O space, write directly to the OSL. This
-		 * bypasses the port validation mechanism, which may
-		 * block a valid write to the reset register. Spec
-		 * section 4.7.3.6 requires register width to be 8.
+		 * For I/O space, write directly to the OSL. This bypasses the port
+		 * validation mechanism, which may block a valid write to the reset
+		 * register.
+		 * Spec section 4.7.3.6 requires register width to be 8.
 		 */
 		status =
 		    acpi_os_write_port((acpi_io_address) reset_reg->address,
@@ -333,7 +333,7 @@ ACPI_EXPORT_SYMBOL(acpi_read_bit_register)
  * FUNCTION:    acpi_write_bit_register
  *
  * PARAMETERS:  register_id     - ID of ACPI Bit Register to access
- *              Value           - Value to write to the register, in bit
+ *              value           - Value to write to the register, in bit
  *                                position zero. The bit is automatically
  *                                shifted to the correct position.
  *
diff --git a/drivers/acpi/acpica/hwxfsleep.c b/drivers/acpi/acpica/hwxfsleep.c
index ae443fe2ebf6..2898011ef12b 100644
--- a/drivers/acpi/acpica/hwxfsleep.c
+++ b/drivers/acpi/acpica/hwxfsleep.c
@@ -350,7 +350,7 @@ ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state_prep)
  *
  * RETURN:      Status
  *
- * DESCRIPTION: Enter a system sleep state (see ACPI 2.0 spec p 231)
+ * DESCRIPTION: Enter a system sleep state
  *              THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED
  *
  ******************************************************************************/
@@ -382,8 +382,9 @@ ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state)
  * RETURN:      Status
  *
  * DESCRIPTION: Perform the first state of OS-independent ACPI cleanup after a
- *              sleep.
- *              Called with interrupts DISABLED.
+ *              sleep. Called with interrupts DISABLED.
+ *              We break wake/resume into 2 stages so that OSPM can handle
+ *              various OS-specific tasks between the two steps.
  *
  ******************************************************************************/
 acpi_status acpi_leave_sleep_state_prep(u8 sleep_state)
diff --git a/drivers/acpi/acpica/nsdump.c b/drivers/acpi/acpica/nsdump.c
index 924b3c71473a..8e6f00370a39 100644
--- a/drivers/acpi/acpica/nsdump.c
+++ b/drivers/acpi/acpica/nsdump.c
@@ -729,5 +729,5 @@ void acpi_ns_dump_tables(acpi_handle search_base, u32 max_depth)
 			     ACPI_OWNER_ID_MAX, search_handle);
 	return_VOID;
 }
-#endif				/* _ACPI_ASL_COMPILER */
-#endif				/* defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER) */
+#endif
+#endif
diff --git a/drivers/acpi/acpica/nsinit.c b/drivers/acpi/acpica/nsinit.c
index 4328e2adfeb9..bb6888f5c262 100644
--- a/drivers/acpi/acpica/nsinit.c
+++ b/drivers/acpi/acpica/nsinit.c
@@ -572,11 +572,6 @@ acpi_ns_init_one_device(acpi_handle obj_handle,
 	info->parameters = NULL;
 	info->flags = ACPI_IGNORE_RETURN_VALUE;
 
-	/*
-	 * Some hardware relies on this being executed as atomically
-	 * as possible (without an NMI being received in the middle of
-	 * this) - so disable NMIs and initialize the device:
-	 */
 	status = acpi_ns_evaluate(info);
 
 	if (ACPI_SUCCESS(status)) {
diff --git a/drivers/acpi/acpica/nsnames.c b/drivers/acpi/acpica/nsnames.c
index 55a175eadcc3..7d34641865ea 100644
--- a/drivers/acpi/acpica/nsnames.c
+++ b/drivers/acpi/acpica/nsnames.c
@@ -126,7 +126,8 @@ acpi_ns_build_external_path(struct acpi_namespace_node *node,
  *              the node, In external format (name segments separated by path
  *              separators.)
  *
- * DESCRIPTION: Used for debug printing in acpi_ns_search_table().
+ * DESCRIPTION: Used to obtain the full pathname to a namespace node, usually
+ *              for error and debug statements.
  *
  ******************************************************************************/
 
diff --git a/drivers/acpi/acpica/nspredef.c b/drivers/acpi/acpica/nspredef.c
index 2419f417ea33..352be3bd1562 100644
--- a/drivers/acpi/acpica/nspredef.c
+++ b/drivers/acpi/acpica/nspredef.c
@@ -1,7 +1,6 @@
 /******************************************************************************
  *
  * Module Name: nspredef - Validation of ACPI predefined methods and objects
- *              $Revision: 1.1 $
  *
  *****************************************************************************/
 
diff --git a/drivers/acpi/acpica/nsxfeval.c b/drivers/acpi/acpica/nsxfeval.c
index d6a9f77972b6..70bbc1f9de0d 100644
--- a/drivers/acpi/acpica/nsxfeval.c
+++ b/drivers/acpi/acpica/nsxfeval.c
@@ -606,6 +606,7 @@ acpi_ns_get_device_callback(acpi_handle obj_handle,
 			for (i = 0; i < cid->count; i++) {
 				if (ACPI_STRCMP(cid->ids[i].string, info->hid)
 				    == 0) {
+					/* Found a matching CID */
 					found = 1;
 					break;
 				}
diff --git a/drivers/acpi/acpica/tbfadt.c b/drivers/acpi/acpica/tbfadt.c
index 390651860bf0..882285bed2c2 100644
--- a/drivers/acpi/acpica/tbfadt.c
+++ b/drivers/acpi/acpica/tbfadt.c
@@ -172,6 +172,7 @@ static struct acpi_fadt_pm_info fadt_pm_info_table[] = {
  * FUNCTION:    acpi_tb_init_generic_address
  *
  * PARAMETERS:  generic_address     - GAS struct to be initialized
+ *              space_id            - ACPI Space ID for this register
  *              byte_width          - Width of this register
  *              address             - Address of the register
  *
@@ -407,8 +408,8 @@ static void acpi_tb_convert_fadt(void)
 	 * should be zero are indeed zero. This will workaround BIOSs that
 	 * inadvertently place values in these fields.
 	 *
-	 * The ACPI 1.0 reserved fields that will be zeroed are the bytes located at
-	 * offset 45, 55, 95, and the word located at offset 109, 110.
+	 * The ACPI 1.0 reserved fields that will be zeroed are the bytes located
+	 * at offset 45, 55, 95, and the word located at offset 109, 110.
 	 *
 	 * Note: The FADT revision value is unreliable. Only the length can be
 	 * trusted.
diff --git a/drivers/acpi/acpica/utglobal.c b/drivers/acpi/acpica/utglobal.c
index ed1893155f8b..d7919a321f4d 100644
--- a/drivers/acpi/acpica/utglobal.c
+++ b/drivers/acpi/acpica/utglobal.c
@@ -368,6 +368,7 @@ acpi_status acpi_ut_init_globals(void)
 	return_ACPI_STATUS(AE_OK);
 }
 
+/* Public globals */
 ACPI_EXPORT_SYMBOL(acpi_gbl_FADT)
 ACPI_EXPORT_SYMBOL(acpi_dbg_level)
 ACPI_EXPORT_SYMBOL(acpi_dbg_layer)
diff --git a/drivers/acpi/acpica/utobject.c b/drivers/acpi/acpica/utobject.c
index 5c52ca78f6fa..822600bf3876 100644
--- a/drivers/acpi/acpica/utobject.c
+++ b/drivers/acpi/acpica/utobject.c
@@ -419,7 +419,7 @@ void acpi_ut_delete_object_desc(union acpi_operand_object *object)
 {
 	ACPI_FUNCTION_TRACE_PTR(ut_delete_object_desc, object);
 
-	/* Object must be a union acpi_operand_object */
+	/* Object must be of type union acpi_operand_object */
 
 	if (ACPI_GET_DESCRIPTOR_TYPE(object) != ACPI_DESC_TYPE_OPERAND) {
 		ACPI_ERROR((AE_INFO,
diff --git a/drivers/acpi/acpica/utxferror.c b/drivers/acpi/acpica/utxferror.c
index d4d3826140d8..a247a224bee5 100644
--- a/drivers/acpi/acpica/utxferror.c
+++ b/drivers/acpi/acpica/utxferror.c
@@ -297,9 +297,9 @@ ACPI_EXPORT_SYMBOL(acpi_bios_warning)
  *
  * PARAMETERS:  module_name     - Caller's module name (for error output)
  *              line_number     - Caller's line number (for error output)
- *              Pathname        - Full pathname to the node
+ *              pathname        - Full pathname to the node
  *              node_flags      - From Namespace node for the method/object
- *              Format          - Printf format string + additional args
+ *              format          - Printf format string + additional args
  *
  * RETURN:      None
  *
-- 
cgit v1.2.3


From 56324c1090ecf057c89a4d470a23a8ca61061b61 Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Wed, 19 Dec 2012 05:37:03 +0000
Subject: ACPICA: Update codes under disabled build options.

This is a cosmetic patch only. Comparison of the resulting binary showed
only line number differences.

This patch does not affect the generation of the Linux binary.
This patch decreases 170 lines of 20121018 divergence.diff.

This patch updates ACPICA codes surrounded by some disabled build options
so that the source code diff between Linux and ACPICA can be reduced.

Some of these build options may never be used in the kernel, so they may
be deleted entirely in future patches.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/acglobal.h |  2 ++
 drivers/acpi/acpica/aclocal.h  | 25 +++++++++++++++++++++++++
 drivers/acpi/acpica/dsmethod.c |  2 +-
 drivers/acpi/acpica/dswload.c  |  5 +++--
 drivers/acpi/acpica/nssearch.c |  5 +++++
 drivers/acpi/acpica/utglobal.c |  4 ++++
 6 files changed, 40 insertions(+), 3 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h
index 64472e4ec329..1ef7ca486a28 100644
--- a/drivers/acpi/acpica/acglobal.h
+++ b/drivers/acpi/acpica/acglobal.h
@@ -415,6 +415,8 @@ ACPI_EXTERN u8 acpi_gbl_db_output_flags;
 
 ACPI_EXTERN u8 acpi_gbl_db_opt_disasm;
 ACPI_EXTERN u8 acpi_gbl_db_opt_verbose;
+ACPI_EXTERN struct acpi_external_list *acpi_gbl_external_list;
+ACPI_EXTERN struct acpi_external_file *acpi_gbl_external_file_list;
 #endif
 
 #ifdef ACPI_DEBUGGER
diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h
index 3453ea68a296..50f8b97e799b 100644
--- a/drivers/acpi/acpica/aclocal.h
+++ b/drivers/acpi/acpica/aclocal.h
@@ -1027,6 +1027,31 @@ struct acpi_port_info {
 
 #define ACPI_ASCII_ZERO                 0x30
 
+/*****************************************************************************
+ *
+ * Disassembler
+ *
+ ****************************************************************************/
+
+struct acpi_external_list {
+	char *path;
+	char *internal_path;
+	struct acpi_external_list *next;
+	u32 value;
+	u16 length;
+	u8 type;
+	u8 flags;
+};
+
+/* Values for Flags field above */
+
+#define ACPI_IPATH_ALLOCATED    0x01
+
+struct acpi_external_file {
+	char *path;
+	struct acpi_external_file *next;
+};
+
 /*****************************************************************************
  *
  * Debugger
diff --git a/drivers/acpi/acpica/dsmethod.c b/drivers/acpi/acpica/dsmethod.c
index 52eb4e01622a..735c05996ec6 100644
--- a/drivers/acpi/acpica/dsmethod.c
+++ b/drivers/acpi/acpica/dsmethod.c
@@ -47,7 +47,7 @@
 #include "acinterp.h"
 #include "acnamesp.h"
 #ifdef	ACPI_DISASSEMBLER
-#include <acpi/acdisasm.h>
+#include "acdisasm.h"
 #endif
 
 #define _COMPONENT          ACPI_DISPATCHER
diff --git a/drivers/acpi/acpica/dswload.c b/drivers/acpi/acpica/dswload.c
index 557510084c7a..d2907407a64b 100644
--- a/drivers/acpi/acpica/dswload.c
+++ b/drivers/acpi/acpica/dswload.c
@@ -50,7 +50,7 @@
 #include "acnamesp.h"
 
 #ifdef ACPI_ASL_COMPILER
-#include <acpi/acdisasm.h>
+#include "acdisasm.h"
 #endif
 
 #define _COMPONENT          ACPI_DISPATCHER
@@ -178,7 +178,8 @@ acpi_ds_load1_begin_op(struct acpi_walk_state * walk_state,
 			 * Target of Scope() not found. Generate an External for it, and
 			 * insert the name into the namespace.
 			 */
-			acpi_dm_add_to_external_list(path, ACPI_TYPE_DEVICE, 0);
+			acpi_dm_add_to_external_list(op, path, ACPI_TYPE_DEVICE,
+						     0);
 			status =
 			    acpi_ns_lookup(walk_state->scope_info, path,
 					   object_type, ACPI_IMODE_LOAD_PASS1,
diff --git a/drivers/acpi/acpica/nssearch.c b/drivers/acpi/acpica/nssearch.c
index 1d2d8ffc1bc5..b7f426482e52 100644
--- a/drivers/acpi/acpica/nssearch.c
+++ b/drivers/acpi/acpica/nssearch.c
@@ -328,6 +328,11 @@ acpi_ns_search_and_enter(u32 target_name,
 		if ((status == AE_OK) && (flags & ACPI_NS_ERROR_IF_FOUND)) {
 			status = AE_ALREADY_EXISTS;
 		}
+#ifdef ACPI_ASL_COMPILER
+		if (*return_node && (*return_node)->type == ACPI_TYPE_ANY) {
+			(*return_node)->flags |= ANOBJ_IS_EXTERNAL;
+		}
+#endif
 
 		/* Either found it or there was an error: finished either way */
 
diff --git a/drivers/acpi/acpica/utglobal.c b/drivers/acpi/acpica/utglobal.c
index d7919a321f4d..4080088f937c 100644
--- a/drivers/acpi/acpica/utglobal.c
+++ b/drivers/acpi/acpica/utglobal.c
@@ -357,6 +357,10 @@ acpi_status acpi_ut_init_globals(void)
 	acpi_gbl_root_node_struct.peer = NULL;
 	acpi_gbl_root_node_struct.object = NULL;
 
+#ifdef ACPI_DISASSEMBLER
+	acpi_gbl_external_list = NULL;
+#endif
+
 #ifdef ACPI_DEBUG_OUTPUT
 	acpi_gbl_lowest_stack_pointer = ACPI_CAST_PTR(acpi_size, ACPI_SIZE_MAX);
 #endif
-- 
cgit v1.2.3


From 739dcbb90a347a66f25cc0c3ef4eef3d4558f409 Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Thu, 20 Dec 2012 01:07:26 +0000
Subject: ACPICA: Cleanup source to reduce differences between Linux and
 ACPICA.

This is a cosmetic patch only. Comparison of the resulting binary showed
only line number differences.

This patch does not affect the generation of the Linux binary.
This patch decreases 389 lines of 20121018 divergence.diff.

This patch reduces source code diff caused by the simple code maintenance
work:
1. Deletion of the unused include files.
2. Deletion of the deprecated codes blocks.
3. Repositioning of the code blocks.
4. Replacing the values with the well defined macros.
5. Replacing the types with the equivalent types.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/accommon.h  |  1 +
 drivers/acpi/acpica/acglobal.h  | 33 +++++++++++++++++----------------
 drivers/acpi/acpica/aclocal.h   |  5 -----
 drivers/acpi/acpica/amlresrc.h  |  6 ++++++
 drivers/acpi/acpica/dsobject.c  |  2 +-
 drivers/acpi/acpica/exregion.c  |  2 +-
 drivers/acpi/acpica/hwregs.c    |  1 -
 drivers/acpi/acpica/hwsleep.c   |  4 ++--
 drivers/acpi/acpica/hwxfsleep.c |  2 +-
 drivers/acpi/acpica/nsdumpdv.c  |  1 -
 drivers/acpi/acpica/nsinit.c    |  1 -
 drivers/acpi/acpica/nsutils.c   |  1 -
 drivers/acpi/acpica/nsxfeval.c  |  8 +++++---
 drivers/acpi/acpica/tbxface.c   |  1 -
 drivers/acpi/acpica/utxface.c   |  4 ----
 15 files changed, 34 insertions(+), 38 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/accommon.h b/drivers/acpi/acpica/accommon.h
index 8a7d51bfb3b3..8632d7136730 100644
--- a/drivers/acpi/acpica/accommon.h
+++ b/drivers/acpi/acpica/accommon.h
@@ -51,6 +51,7 @@
  *
  * Note: The order of these include files is important.
  */
+#include <acpi/acconfig.h>	/* Global configuration constants */
 #include "acmacros.h"		/* C macros */
 #include "aclocal.h"		/* Internal data types */
 #include "acobject.h"		/* ACPI internal object */
diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h
index 1ef7ca486a28..864806e1ac54 100644
--- a/drivers/acpi/acpica/acglobal.h
+++ b/drivers/acpi/acpica/acglobal.h
@@ -192,14 +192,6 @@ ACPI_EXTERN u8 acpi_gbl_integer_bit_width;
 ACPI_EXTERN u8 acpi_gbl_integer_byte_width;
 ACPI_EXTERN u8 acpi_gbl_integer_nybble_width;
 
-/* Mutex for _OSI support */
-
-ACPI_EXTERN acpi_mutex acpi_gbl_osi_mutex;
-
-/* Reader/Writer lock is used for namespace walk and dynamic table unload */
-
-ACPI_EXTERN struct acpi_rw_lock acpi_gbl_namespace_rw_lock;
-
 /*****************************************************************************
  *
  * Mutual exclusion within ACPICA subsystem
@@ -233,6 +225,14 @@ ACPI_EXTERN u8 acpi_gbl_global_lock_pending;
 ACPI_EXTERN acpi_spinlock acpi_gbl_gpe_lock;	/* For GPE data structs and registers */
 ACPI_EXTERN acpi_spinlock acpi_gbl_hardware_lock;	/* For ACPI H/W except GPE registers */
 
+/* Mutex for _OSI support */
+
+ACPI_EXTERN acpi_mutex acpi_gbl_osi_mutex;
+
+/* Reader/Writer lock is used for namespace walk and dynamic table unload */
+
+ACPI_EXTERN struct acpi_rw_lock acpi_gbl_namespace_rw_lock;
+
 /*****************************************************************************
  *
  * Miscellaneous globals
@@ -304,6 +304,7 @@ extern const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS];
 ACPI_EXTERN struct acpi_memory_list *acpi_gbl_global_list;
 ACPI_EXTERN struct acpi_memory_list *acpi_gbl_ns_node_list;
 ACPI_EXTERN u8 acpi_gbl_display_final_mem_stats;
+ACPI_EXTERN u8 acpi_gbl_disable_mem_tracking;
 #endif
 
 /*****************************************************************************
@@ -365,19 +366,18 @@ ACPI_EXTERN u8 acpi_gbl_sleep_type_b;
  *
  ****************************************************************************/
 
-extern struct acpi_fixed_event_info
-    acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS];
-ACPI_EXTERN struct acpi_fixed_event_handler
-    acpi_gbl_fixed_event_handlers[ACPI_NUM_FIXED_EVENTS];
-ACPI_EXTERN struct acpi_gpe_xrupt_info *acpi_gbl_gpe_xrupt_list_head;
-ACPI_EXTERN struct acpi_gpe_block_info
-*acpi_gbl_gpe_fadt_blocks[ACPI_MAX_GPE_BLOCKS];
-
 #if (!ACPI_REDUCED_HARDWARE)
 
 ACPI_EXTERN u8 acpi_gbl_all_gpes_initialized;
+ACPI_EXTERN struct acpi_gpe_xrupt_info *acpi_gbl_gpe_xrupt_list_head;
+ACPI_EXTERN struct acpi_gpe_block_info
+    *acpi_gbl_gpe_fadt_blocks[ACPI_MAX_GPE_BLOCKS];
 ACPI_EXTERN acpi_gbl_event_handler acpi_gbl_global_event_handler;
 ACPI_EXTERN void *acpi_gbl_global_event_handler_context;
+ACPI_EXTERN struct acpi_fixed_event_handler
+    acpi_gbl_fixed_event_handlers[ACPI_NUM_FIXED_EVENTS];
+extern struct acpi_fixed_event_info
+    acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS];
 
 #endif				/* !ACPI_REDUCED_HARDWARE */
 
@@ -428,6 +428,7 @@ extern u8 acpi_gbl_db_terminate_threads;
 ACPI_EXTERN u8 acpi_gbl_db_opt_tables;
 ACPI_EXTERN u8 acpi_gbl_db_opt_stats;
 ACPI_EXTERN u8 acpi_gbl_db_opt_ini_methods;
+ACPI_EXTERN u8 acpi_gbl_db_opt_no_region_support;
 
 ACPI_EXTERN char *acpi_gbl_db_args[ACPI_DEBUGGER_MAX_ARGS];
 ACPI_EXTERN acpi_object_type acpi_gbl_db_arg_types[ACPI_DEBUGGER_MAX_ARGS];
diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h
index 50f8b97e799b..421b048f6640 100644
--- a/drivers/acpi/acpica/aclocal.h
+++ b/drivers/acpi/acpica/aclocal.h
@@ -410,11 +410,6 @@ struct acpi_gpe_notify_info {
 	struct acpi_gpe_notify_info *next;
 };
 
-struct acpi_gpe_notify_object {
-	struct acpi_namespace_node *node;
-	struct acpi_gpe_notify_object *next;
-};
-
 /*
  * GPE dispatch info. At any time, the GPE can have at most one type
  * of dispatch - Method, Handler, or Implicit Notify.
diff --git a/drivers/acpi/acpica/amlresrc.h b/drivers/acpi/acpica/amlresrc.h
index 968449685e06..bdbb7d057085 100644
--- a/drivers/acpi/acpica/amlresrc.h
+++ b/drivers/acpi/acpica/amlresrc.h
@@ -199,6 +199,12 @@ struct aml_resource_fixed_dma {
 struct aml_resource_large_header {
 AML_RESOURCE_LARGE_HEADER_COMMON};
 
+/* General Flags for address space resource descriptors */
+
+#define ACPI_RESOURCE_FLAG_DEC      2
+#define ACPI_RESOURCE_FLAG_MIF      4
+#define ACPI_RESOURCE_FLAG_MAF      8
+
 struct aml_resource_memory24 {
 	AML_RESOURCE_LARGE_HEADER_COMMON u8 flags;
 	u16 minimum;
diff --git a/drivers/acpi/acpica/dsobject.c b/drivers/acpi/acpica/dsobject.c
index c9f15d3a3686..13844a115d97 100644
--- a/drivers/acpi/acpica/dsobject.c
+++ b/drivers/acpi/acpica/dsobject.c
@@ -388,7 +388,7 @@ acpi_ds_build_internal_package_obj(struct acpi_walk_state *walk_state,
 	union acpi_parse_object *parent;
 	union acpi_operand_object *obj_desc = NULL;
 	acpi_status status = AE_OK;
-	unsigned i;
+	u32 i;
 	u16 index;
 	u16 reference_count;
 
diff --git a/drivers/acpi/acpica/exregion.c b/drivers/acpi/acpica/exregion.c
index 0a01e19c3190..044d44141be6 100644
--- a/drivers/acpi/acpica/exregion.c
+++ b/drivers/acpi/acpica/exregion.c
@@ -163,7 +163,7 @@ acpi_ex_system_memory_space_handler(u32 function,
 		page_boundary_map_length =
 		    ACPI_ROUND_UP(address, ACPI_DEFAULT_PAGE_SIZE) - address;
 
-		if (!page_boundary_map_length) {
+		if (page_boundary_map_length == 0) {
 			page_boundary_map_length = ACPI_DEFAULT_PAGE_SIZE;
 		}
 
diff --git a/drivers/acpi/acpica/hwregs.c b/drivers/acpi/acpica/hwregs.c
index 165395f1f715..e782b5a22fe5 100644
--- a/drivers/acpi/acpica/hwregs.c
+++ b/drivers/acpi/acpica/hwregs.c
@@ -44,7 +44,6 @@
 
 #include <acpi/acpi.h>
 #include "accommon.h"
-#include "acnamesp.h"
 #include "acevents.h"
 
 #define _COMPONENT          ACPI_HARDWARE
diff --git a/drivers/acpi/acpica/hwsleep.c b/drivers/acpi/acpica/hwsleep.c
index 3fddde056a5e..691a5fb10d4d 100644
--- a/drivers/acpi/acpica/hwsleep.c
+++ b/drivers/acpi/acpica/hwsleep.c
@@ -45,7 +45,6 @@
 #include <acpi/acpi.h>
 #include <linux/acpi.h>
 #include "accommon.h"
-#include <linux/module.h>
 
 #define _COMPONENT          ACPI_HARDWARE
 ACPI_MODULE_NAME("hwsleep")
@@ -323,7 +322,8 @@ acpi_status acpi_hw_legacy_wake(u8 sleep_state)
 	 * and use it to determine whether the system is rebooting or
 	 * resuming. Clear WAK_STS for compatibility.
 	 */
-	acpi_write_bit_register(ACPI_BITREG_WAKE_STATUS, 1);
+	(void)acpi_write_bit_register(ACPI_BITREG_WAKE_STATUS,
+				      ACPI_CLEAR_STATUS);
 	acpi_gbl_system_awake_and_running = TRUE;
 
 	/* Enable power button */
diff --git a/drivers/acpi/acpica/hwxfsleep.c b/drivers/acpi/acpica/hwxfsleep.c
index 2898011ef12b..6fcee00cb34b 100644
--- a/drivers/acpi/acpica/hwxfsleep.c
+++ b/drivers/acpi/acpica/hwxfsleep.c
@@ -41,9 +41,9 @@
  * POSSIBILITY OF SUCH DAMAGES.
  */
 
+#include <linux/export.h>
 #include <acpi/acpi.h>
 #include "accommon.h"
-#include <linux/module.h>
 
 #define _COMPONENT          ACPI_HARDWARE
 ACPI_MODULE_NAME("hwxfsleep")
diff --git a/drivers/acpi/acpica/nsdumpdv.c b/drivers/acpi/acpica/nsdumpdv.c
index 944d4c8d9438..4ae93602b0ff 100644
--- a/drivers/acpi/acpica/nsdumpdv.c
+++ b/drivers/acpi/acpica/nsdumpdv.c
@@ -42,7 +42,6 @@
  */
 
 #include <acpi/acpi.h>
-#include "accommon.h"
 
 /* TBD: This entire module is apparently obsolete and should be removed */
 
diff --git a/drivers/acpi/acpica/nsinit.c b/drivers/acpi/acpica/nsinit.c
index bb6888f5c262..94c1500074c4 100644
--- a/drivers/acpi/acpica/nsinit.c
+++ b/drivers/acpi/acpica/nsinit.c
@@ -46,7 +46,6 @@
 #include "acnamesp.h"
 #include "acdispat.h"
 #include "acinterp.h"
-#include <linux/nmi.h>
 
 #define _COMPONENT          ACPI_NAMESPACE
 ACPI_MODULE_NAME("nsinit")
diff --git a/drivers/acpi/acpica/nsutils.c b/drivers/acpi/acpica/nsutils.c
index b5b4cb72a8a8..479aad0dbf41 100644
--- a/drivers/acpi/acpica/nsutils.c
+++ b/drivers/acpi/acpica/nsutils.c
@@ -46,7 +46,6 @@
 #include "accommon.h"
 #include "acnamesp.h"
 #include "amlcode.h"
-#include "actables.h"
 
 #define _COMPONENT          ACPI_NAMESPACE
 ACPI_MODULE_NAME("nsutils")
diff --git a/drivers/acpi/acpica/nsxfeval.c b/drivers/acpi/acpica/nsxfeval.c
index 70bbc1f9de0d..5c05ba3bc0d5 100644
--- a/drivers/acpi/acpica/nsxfeval.c
+++ b/drivers/acpi/acpica/nsxfeval.c
@@ -602,18 +602,20 @@ acpi_ns_get_device_callback(acpi_handle obj_handle,
 
 			/* Walk the CID list */
 
-			found = 0;
+			found = FALSE;
 			for (i = 0; i < cid->count; i++) {
 				if (ACPI_STRCMP(cid->ids[i].string, info->hid)
 				    == 0) {
 					/* Found a matching CID */
-					found = 1;
+					found = TRUE;
 					break;
 				}
 			}
+
 			ACPI_FREE(cid);
-			if (!found)
+			if (!found) {
 				return (AE_OK);
+			}
 		}
 	}
 
diff --git a/drivers/acpi/acpica/tbxface.c b/drivers/acpi/acpica/tbxface.c
index f5632780421d..d102fe7f709b 100644
--- a/drivers/acpi/acpica/tbxface.c
+++ b/drivers/acpi/acpica/tbxface.c
@@ -44,7 +44,6 @@
 #include <linux/export.h>
 #include <acpi/acpi.h>
 #include "accommon.h"
-#include "acnamesp.h"
 #include "actables.h"
 
 #define _COMPONENT          ACPI_TABLES
diff --git a/drivers/acpi/acpica/utxface.c b/drivers/acpi/acpica/utxface.c
index 390db0ca5e2e..cb85a7b313da 100644
--- a/drivers/acpi/acpica/utxface.c
+++ b/drivers/acpi/acpica/utxface.c
@@ -44,11 +44,7 @@
 #include <linux/export.h>
 #include <acpi/acpi.h>
 #include "accommon.h"
-#include "acevents.h"
-#include "acnamesp.h"
 #include "acdebug.h"
-#include "actables.h"
-#include "acinterp.h"
 
 #define _COMPONENT          ACPI_UTILITIES
 ACPI_MODULE_NAME("utxface")
-- 
cgit v1.2.3


From 3e8214e5c2bd449b30109d4a098597ab1b7c9fb9 Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Wed, 19 Dec 2012 05:37:15 +0000
Subject: ACPICA: Cleanup indentation to reduce differences between Linux and
 ACPICA.

This is a cosmetic patch only. Comparison of the resulting binary showed
only line number differences.

This patch does not affect the generation of the Linux binary.
This patch decreases 210 lines of 20121018 divergence.diff.

The ACPICA source codes uses a totally different indentation style from the
Linux to be compatible with other users (operating systems or BIOS).

Indentation differences are critical to the release automation. There are
two causes related to the "indentation" that are affecting the release
automation:
1. The ACPICA -> Linux release process is:
     ACPICA source -- acpisrc - hierarchy - indent ->
     linuxized ACPICA source -- diff ->
     linuxized ACPICA patch (x) -- human intervention ->
     linuxized ACPICA patch (o)
     Where
       'x' means "cannot be directly applied to the Linux"
       'o' means "can be directly applied to the Linux"
   Different "indent" version or "indent" options used in the "indent"
   step will lead to different divergences.
   The version of "indent" used for the current release process is:
     GNU indent 2.2.11
   The options of "indent" used for the current release process is:
     -npro -kr -i8 -ts8 -sob -l80 -ss -ncs
2. Manual indentation prettifying work in the Linux side will also harm the
   automatically generated linuxized ACPICA patches, making them impossible
   to apply directly.

This patch fixes source code differences caused by the two causes so that
the "human intervention" can be reduced in the future.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/aclocal.h   |  1 +
 drivers/acpi/acpica/evxface.c   | 13 +++++++------
 drivers/acpi/acpica/evxfevnt.c  |  1 -
 drivers/acpi/acpica/evxfgpe.c   |  1 +
 drivers/acpi/acpica/exconfig.c  |  1 -
 drivers/acpi/acpica/exmutex.c   |  1 +
 drivers/acpi/acpica/exoparg1.c  |  8 +-------
 drivers/acpi/acpica/exregion.c  |  9 ++++-----
 drivers/acpi/acpica/hwacpi.c    |  3 +--
 drivers/acpi/acpica/hwregs.c    |  3 +--
 drivers/acpi/acpica/nsrepair2.c |  3 ++-
 drivers/acpi/acpica/nsutils.c   |  6 +++---
 drivers/acpi/acpica/nsxfeval.c  |  2 ++
 drivers/acpi/acpica/psutils.c   |  2 +-
 drivers/acpi/acpica/rscreate.c  |  3 +--
 drivers/acpi/acpica/rsdump.c    |  3 ++-
 drivers/acpi/acpica/rsirq.c     |  6 ++----
 drivers/acpi/acpica/rsmemory.c  |  6 ++----
 drivers/acpi/acpica/rsmisc.c    | 11 ++++++-----
 drivers/acpi/acpica/rsutils.c   |  6 ++++--
 drivers/acpi/acpica/uteval.c    |  2 +-
 drivers/acpi/acpica/utglobal.c  |  1 +
 drivers/acpi/acpica/utresrc.c   |  7 +++----
 23 files changed, 47 insertions(+), 52 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h
index 421b048f6640..5ce06935d9de 100644
--- a/drivers/acpi/acpica/aclocal.h
+++ b/drivers/acpi/acpica/aclocal.h
@@ -678,6 +678,7 @@ struct acpi_opcode_info {
 };
 
 /* Value associated with the parse object */
+
 union acpi_parse_value {
 	u64 integer;		/* Integer constant (Up to 64 bits) */
 	u32 size;		/* bytelist or field size */
diff --git a/drivers/acpi/acpica/evxface.c b/drivers/acpi/acpica/evxface.c
index 76cfe71c6b28..db820600b503 100644
--- a/drivers/acpi/acpica/evxface.c
+++ b/drivers/acpi/acpica/evxface.c
@@ -249,6 +249,7 @@ acpi_remove_notify_handler(acpi_handle device,
 	    (handler_type > ACPI_MAX_NOTIFY_HANDLER_TYPE)) {
 		return_ACPI_STATUS(AE_BAD_PARAMETER);
 	}
+
 	/* Make sure all deferred notify tasks are completed */
 
 	acpi_os_wait_events_complete();
@@ -622,12 +623,12 @@ acpi_install_gpe_handler(acpi_handle gpe_device,
 		goto free_and_exit;
 	}
 
-
 	handler->address = address;
 	handler->context = context;
 	handler->method_node = gpe_event_info->dispatch.method_node;
-	handler->original_flags = gpe_event_info->flags &
-			(ACPI_GPE_XRUPT_TYPE_MASK | ACPI_GPE_DISPATCH_MASK);
+	handler->original_flags = (u8)(gpe_event_info->flags &
+				       (ACPI_GPE_XRUPT_TYPE_MASK |
+				        ACPI_GPE_DISPATCH_MASK));
 
 	/*
 	 * If the GPE is associated with a method, it may have been enabled
@@ -746,10 +747,10 @@ acpi_remove_gpe_handler(acpi_handle gpe_device,
 	 * enabled, it should be enabled at this point to restore the
 	 * post-initialization configuration.
 	 */
-
-	if ((handler->original_flags & ACPI_GPE_DISPATCH_METHOD)
-	    && handler->originally_enabled)
+	if ((handler->original_flags & ACPI_GPE_DISPATCH_METHOD) &&
+	    handler->originally_enabled) {
 		(void)acpi_ev_add_gpe_reference(gpe_event_info);
+	}
 
 	/* Now we can free the handler object */
 
diff --git a/drivers/acpi/acpica/evxfevnt.c b/drivers/acpi/acpica/evxfevnt.c
index ee6e96c9835a..be57f49dafbd 100644
--- a/drivers/acpi/acpica/evxfevnt.c
+++ b/drivers/acpi/acpica/evxfevnt.c
@@ -61,7 +61,6 @@ ACPI_MODULE_NAME("evxfevnt")
  * DESCRIPTION: Transfers the system into ACPI mode.
  *
  ******************************************************************************/
-
 acpi_status acpi_enable(void)
 {
 	acpi_status status;
diff --git a/drivers/acpi/acpica/evxfgpe.c b/drivers/acpi/acpica/evxfgpe.c
index d8095c1bda11..36f8ad87670b 100644
--- a/drivers/acpi/acpica/evxfgpe.c
+++ b/drivers/acpi/acpica/evxfgpe.c
@@ -172,6 +172,7 @@ acpi_status acpi_disable_gpe(acpi_handle gpe_device, u32 gpe_number)
 	acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
 	return_ACPI_STATUS(status);
 }
+
 ACPI_EXPORT_SYMBOL(acpi_disable_gpe)
 
 
diff --git a/drivers/acpi/acpica/exconfig.c b/drivers/acpi/acpica/exconfig.c
index 9ad64204495e..b4f42f56fc34 100644
--- a/drivers/acpi/acpica/exconfig.c
+++ b/drivers/acpi/acpica/exconfig.c
@@ -125,7 +125,6 @@ acpi_ex_add_table(u32 table_index,
 	 * responsible for discovering any new wake GPEs by running _PRW methods
 	 * that may have been loaded by this table.
 	 */
-
 	status = acpi_tb_get_owner_id(table_index, &owner_id);
 	if (ACPI_SUCCESS(status)) {
 		acpi_ev_update_gpes(owner_id);
diff --git a/drivers/acpi/acpica/exmutex.c b/drivers/acpi/acpica/exmutex.c
index 900a25155331..02157ef486dd 100644
--- a/drivers/acpi/acpica/exmutex.c
+++ b/drivers/acpi/acpica/exmutex.c
@@ -378,6 +378,7 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc,
 	}
 
 	/* Must have a valid thread ID */
+
 	if (!walk_state->thread) {
 		ACPI_ERROR((AE_INFO,
 			    "Cannot release Mutex [%4.4s], null thread info",
diff --git a/drivers/acpi/acpica/exoparg1.c b/drivers/acpi/acpica/exoparg1.c
index bbf01e9bf057..cf50c6c6d926 100644
--- a/drivers/acpi/acpica/exoparg1.c
+++ b/drivers/acpi/acpica/exoparg1.c
@@ -948,13 +948,7 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state)
 					 */
 					return_desc =
 					    acpi_ut_create_integer_object((u64)
-									  temp_desc->
-									  buffer.
-									  pointer
-									  [operand
-									   [0]->
-									   reference.
-									   value]);
+									  temp_desc->buffer.pointer[operand[0]->reference.value]);
 					if (!return_desc) {
 						status = AE_NO_MEMORY;
 						goto cleanup;
diff --git a/drivers/acpi/acpica/exregion.c b/drivers/acpi/acpica/exregion.c
index 044d44141be6..06a49245f410 100644
--- a/drivers/acpi/acpica/exregion.c
+++ b/drivers/acpi/acpica/exregion.c
@@ -162,7 +162,6 @@ acpi_ex_system_memory_space_handler(u32 function,
 		 */
 		page_boundary_map_length =
 		    ACPI_ROUND_UP(address, ACPI_DEFAULT_PAGE_SIZE) - address;
-
 		if (page_boundary_map_length == 0) {
 			page_boundary_map_length = ACPI_DEFAULT_PAGE_SIZE;
 		}
@@ -240,19 +239,19 @@ acpi_ex_system_memory_space_handler(u32 function,
 
 		switch (bit_width) {
 		case 8:
-			ACPI_SET8(logical_addr_ptr) = (u8) * value;
+			ACPI_SET8(logical_addr_ptr) = (u8)*value;
 			break;
 
 		case 16:
-			ACPI_SET16(logical_addr_ptr) = (u16) * value;
+			ACPI_SET16(logical_addr_ptr) = (u16)*value;
 			break;
 
 		case 32:
-			ACPI_SET32(logical_addr_ptr) = (u32) * value;
+			ACPI_SET32(logical_addr_ptr) = (u32)*value;
 			break;
 
 		case 64:
-			ACPI_SET64(logical_addr_ptr) = (u64) * value;
+			ACPI_SET64(logical_addr_ptr) = (u64)*value;
 			break;
 
 		default:
diff --git a/drivers/acpi/acpica/hwacpi.c b/drivers/acpi/acpica/hwacpi.c
index 90a9aea1cee9..effa2b0a5932 100644
--- a/drivers/acpi/acpica/hwacpi.c
+++ b/drivers/acpi/acpica/hwacpi.c
@@ -108,8 +108,7 @@ acpi_status acpi_hw_set_mode(u32 mode)
 		 * enable bits to default
 		 */
 		status = acpi_hw_write_port(acpi_gbl_FADT.smi_command,
-					    (u32) acpi_gbl_FADT.acpi_disable,
-					    8);
+					    (u32)acpi_gbl_FADT.acpi_disable, 8);
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 				  "Attempting to enable Legacy (non-ACPI) mode\n"));
 		break;
diff --git a/drivers/acpi/acpica/hwregs.c b/drivers/acpi/acpica/hwregs.c
index e782b5a22fe5..fd4e2dc2c641 100644
--- a/drivers/acpi/acpica/hwregs.c
+++ b/drivers/acpi/acpica/hwregs.c
@@ -363,8 +363,7 @@ acpi_status acpi_hw_write_pm1_control(u32 pm1a_control, u32 pm1b_control)
  * DESCRIPTION: Read from the specified ACPI register
  *
  ******************************************************************************/
-acpi_status
-acpi_hw_register_read(u32 register_id, u32 * return_value)
+acpi_status acpi_hw_register_read(u32 register_id, u32 *return_value)
 {
 	u32 value = 0;
 	acpi_status status;
diff --git a/drivers/acpi/acpica/nsrepair2.c b/drivers/acpi/acpica/nsrepair2.c
index 90189251cdf0..fdb818d72a07 100644
--- a/drivers/acpi/acpica/nsrepair2.c
+++ b/drivers/acpi/acpica/nsrepair2.c
@@ -55,7 +55,8 @@ ACPI_MODULE_NAME("nsrepair2")
  */
 typedef
 acpi_status(*acpi_repair_function) (struct acpi_predefined_data *data,
-				    union acpi_operand_object **return_object_ptr);
+				    union acpi_operand_object
+				    **return_object_ptr);
 
 typedef struct acpi_repair_info {
 	char name[ACPI_NAME_SIZE];
diff --git a/drivers/acpi/acpica/nsutils.c b/drivers/acpi/acpica/nsutils.c
index 479aad0dbf41..7e8bd2af806d 100644
--- a/drivers/acpi/acpica/nsutils.c
+++ b/drivers/acpi/acpica/nsutils.c
@@ -111,7 +111,7 @@ acpi_ns_print_node_pathname(struct acpi_namespace_node *node,
 u8 acpi_ns_valid_root_prefix(char prefix)
 {
 
-	return ((u8) (prefix == '\\'));
+	return ((u8)(prefix == '\\'));
 }
 
 /*******************************************************************************
@@ -129,7 +129,7 @@ u8 acpi_ns_valid_root_prefix(char prefix)
 static u8 acpi_ns_valid_path_separator(char sep)
 {
 
-	return ((u8) (sep == '.'));
+	return ((u8)(sep == '.'));
 }
 
 /*******************************************************************************
@@ -673,7 +673,7 @@ u32 acpi_ns_opens_scope(acpi_object_type type)
 		return_UINT32(ACPI_NS_NORMAL);
 	}
 
-	return_UINT32(((u32) acpi_gbl_ns_properties[type]) & ACPI_NS_NEWSCOPE);
+	return_UINT32(((u32)acpi_gbl_ns_properties[type]) & ACPI_NS_NEWSCOPE);
 }
 
 /*******************************************************************************
diff --git a/drivers/acpi/acpica/nsxfeval.c b/drivers/acpi/acpica/nsxfeval.c
index 5c05ba3bc0d5..a5d8ccce10fd 100644
--- a/drivers/acpi/acpica/nsxfeval.c
+++ b/drivers/acpi/acpica/nsxfeval.c
@@ -606,7 +606,9 @@ acpi_ns_get_device_callback(acpi_handle obj_handle,
 			for (i = 0; i < cid->count; i++) {
 				if (ACPI_STRCMP(cid->ids[i].string, info->hid)
 				    == 0) {
+
 					/* Found a matching CID */
+
 					found = TRUE;
 					break;
 				}
diff --git a/drivers/acpi/acpica/psutils.c b/drivers/acpi/acpica/psutils.c
index 4137dcb352d1..afefb3a1b577 100644
--- a/drivers/acpi/acpica/psutils.c
+++ b/drivers/acpi/acpica/psutils.c
@@ -206,7 +206,7 @@ u8 acpi_ps_is_leading_char(u32 c)
  */
 u8 acpi_ps_is_prefix_char(u32 c)
 {
-	return ((u8) (c == '\\' || c == '^'));
+	return ((u8)(c == '\\' || c == '^'));
 }
 
 /*
diff --git a/drivers/acpi/acpica/rscreate.c b/drivers/acpi/acpica/rscreate.c
index 311cbc4f05fa..81333264e992 100644
--- a/drivers/acpi/acpica/rscreate.c
+++ b/drivers/acpi/acpica/rscreate.c
@@ -480,8 +480,7 @@ acpi_rs_create_aml_resources(struct acpi_resource *linked_list_buffer,
 	status = acpi_rs_get_aml_length(linked_list_buffer, &aml_size_needed);
 
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "AmlSizeNeeded=%X, %s\n",
-			  (u32) aml_size_needed,
-			  acpi_format_exception(status)));
+			  (u32)aml_size_needed, acpi_format_exception(status)));
 	if (ACPI_FAILURE(status)) {
 		return_ACPI_STATUS(status);
 	}
diff --git a/drivers/acpi/acpica/rsdump.c b/drivers/acpi/acpica/rsdump.c
index 4d11b072388c..276e52f2236d 100644
--- a/drivers/acpi/acpica/rsdump.c
+++ b/drivers/acpi/acpica/rsdump.c
@@ -654,7 +654,8 @@ acpi_rs_dump_descriptor(void *resource, struct acpi_rsdump_info *table)
 			/*
 			 * Optional resource_source for Address resources
 			 */
-			acpi_rs_dump_resource_source(ACPI_CAST_PTR(struct
+			acpi_rs_dump_resource_source(ACPI_CAST_PTR
+						     (struct
 								   acpi_resource_source,
 								   target));
 			break;
diff --git a/drivers/acpi/acpica/rsirq.c b/drivers/acpi/acpica/rsirq.c
index e23a9ec248cb..a718eca8e825 100644
--- a/drivers/acpi/acpica/rsirq.c
+++ b/drivers/acpi/acpica/rsirq.c
@@ -212,15 +212,13 @@ struct acpi_rsconvert_info acpi_rs_convert_ext_irq[9] = {
 
 	{ACPI_RSC_COUNT, ACPI_RS_OFFSET(data.extended_irq.interrupt_count),
 	 AML_OFFSET(extended_irq.interrupt_count),
-	 sizeof(u32)}
-	,
+	 sizeof(u32)},
 
 	/* Copy every IRQ in the table, each is 32 bits */
 
 	{ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.extended_irq.interrupts[0]),
 	 AML_OFFSET(extended_irq.interrupts[0]),
-	 0}
-	,
+	 0},
 
 	/* Optional resource_source (Index and String) */
 
diff --git a/drivers/acpi/acpica/rsmemory.c b/drivers/acpi/acpica/rsmemory.c
index 4fd611ad02b4..d446103a61cb 100644
--- a/drivers/acpi/acpica/rsmemory.c
+++ b/drivers/acpi/acpica/rsmemory.c
@@ -156,8 +156,7 @@ struct acpi_rsconvert_info acpi_rs_get_vendor_small[3] = {
 
 	{ACPI_RSC_COUNT16, ACPI_RS_OFFSET(data.vendor.byte_length),
 	 0,
-	 sizeof(u8)}
-	,
+	 sizeof(u8)},
 
 	/* Vendor data */
 
@@ -181,8 +180,7 @@ struct acpi_rsconvert_info acpi_rs_get_vendor_large[3] = {
 
 	{ACPI_RSC_COUNT16, ACPI_RS_OFFSET(data.vendor.byte_length),
 	 0,
-	 sizeof(u8)}
-	,
+	 sizeof(u8)},
 
 	/* Vendor data */
 
diff --git a/drivers/acpi/acpica/rsmisc.c b/drivers/acpi/acpica/rsmisc.c
index c6f291c2bc83..3d0e15cd1276 100644
--- a/drivers/acpi/acpica/rsmisc.c
+++ b/drivers/acpi/acpica/rsmisc.c
@@ -159,7 +159,7 @@ acpi_rs_convert_aml_to_resource(struct acpi_resource *resource,
 		case ACPI_RSC_COUNT:
 
 			item_count = ACPI_GET8(source);
-			ACPI_SET8(destination) = (u8) item_count;
+			ACPI_SET8(destination) = (u8)item_count;
 
 			resource->length = resource->length +
 			    (info->value * (item_count - 1));
@@ -385,7 +385,7 @@ acpi_rs_convert_aml_to_resource(struct acpi_resource *resource,
 			}
 
 			target = ACPI_ADD_PTR(char, resource, info->value);
-			ACPI_SET8(target) = (u8) item_count;
+			ACPI_SET8(target) = (u8)item_count;
 			break;
 
 		case ACPI_RSC_BITMASK16:
@@ -401,7 +401,7 @@ acpi_rs_convert_aml_to_resource(struct acpi_resource *resource,
 			}
 
 			target = ACPI_ADD_PTR(char, resource, info->value);
-			ACPI_SET8(target) = (u8) item_count;
+			ACPI_SET8(target) = (u8)item_count;
 			break;
 
 		case ACPI_RSC_EXIT_NE:
@@ -544,7 +544,7 @@ acpi_rs_convert_resource_to_aml(struct acpi_resource *resource,
 		case ACPI_RSC_COUNT:
 
 			item_count = ACPI_GET8(source);
-			ACPI_SET8(destination) = (u8) item_count;
+			ACPI_SET8(destination) = (u8)item_count;
 
 			aml_length =
 			    (u16) (aml_length +
@@ -686,7 +686,8 @@ acpi_rs_convert_resource_to_aml(struct acpi_resource *resource,
 			 * Optional resource_source (Index and String)
 			 */
 			aml_length =
-			    acpi_rs_set_resource_source(aml, (acpi_rs_length)
+			    acpi_rs_set_resource_source(aml,
+							(acpi_rs_length)
 							aml_length, source);
 			acpi_rs_set_resource_length(aml_length, aml);
 			break;
diff --git a/drivers/acpi/acpica/rsutils.c b/drivers/acpi/acpica/rsutils.c
index 37d5241c0acf..441447f238f0 100644
--- a/drivers/acpi/acpica/rsutils.c
+++ b/drivers/acpi/acpica/rsutils.c
@@ -358,8 +358,10 @@ acpi_rs_get_resource_source(acpi_rs_length resource_length,
 		 *
 		 * Zero the entire area of the buffer.
 		 */
-		total_length = (u32)
-		ACPI_STRLEN(ACPI_CAST_PTR(char, &aml_resource_source[1])) + 1;
+		total_length =
+		    (u32)
+		    ACPI_STRLEN(ACPI_CAST_PTR(char, &aml_resource_source[1])) +
+		    1;
 		total_length = (u32) ACPI_ROUND_UP_TO_NATIVE_WORD(total_length);
 
 		ACPI_MEMSET(resource_source->string_ptr, 0, total_length);
diff --git a/drivers/acpi/acpica/uteval.c b/drivers/acpi/acpica/uteval.c
index a9c65fbea5f4..45cddb8b1101 100644
--- a/drivers/acpi/acpica/uteval.c
+++ b/drivers/acpi/acpica/uteval.c
@@ -68,7 +68,7 @@ ACPI_MODULE_NAME("uteval")
  ******************************************************************************/
 
 acpi_status
-acpi_ut_evaluate_object(struct acpi_namespace_node *prefix_node,
+acpi_ut_evaluate_object(struct acpi_namespace_node * prefix_node,
 			char *path,
 			u32 expected_return_btypes,
 			union acpi_operand_object **return_desc)
diff --git a/drivers/acpi/acpica/utglobal.c b/drivers/acpi/acpica/utglobal.c
index 4080088f937c..c083611c76a6 100644
--- a/drivers/acpi/acpica/utglobal.c
+++ b/drivers/acpi/acpica/utglobal.c
@@ -373,6 +373,7 @@ acpi_status acpi_ut_init_globals(void)
 }
 
 /* Public globals */
+
 ACPI_EXPORT_SYMBOL(acpi_gbl_FADT)
 ACPI_EXPORT_SYMBOL(acpi_dbg_level)
 ACPI_EXPORT_SYMBOL(acpi_dbg_layer)
diff --git a/drivers/acpi/acpica/utresrc.c b/drivers/acpi/acpica/utresrc.c
index e38bef4980bc..7d0a1b5dedff 100644
--- a/drivers/acpi/acpica/utresrc.c
+++ b/drivers/acpi/acpica/utresrc.c
@@ -412,7 +412,7 @@ static const u8 acpi_gbl_resource_types[] = {
  ******************************************************************************/
 
 acpi_status
-acpi_ut_walk_aml_resources(u8 * aml,
+acpi_ut_walk_aml_resources(u8 *aml,
 			   acpi_size aml_length,
 			   acpi_walk_aml_callback user_function, void **context)
 {
@@ -525,7 +525,7 @@ acpi_ut_walk_aml_resources(u8 * aml,
  *
  ******************************************************************************/
 
-acpi_status acpi_ut_validate_resource(void *aml, u8 * return_index)
+acpi_status acpi_ut_validate_resource(void *aml, u8 *return_index)
 {
 	union aml_resource *aml_resource;
 	u8 resource_type;
@@ -800,8 +800,7 @@ u32 acpi_ut_get_descriptor_length(void *aml)
  ******************************************************************************/
 
 acpi_status
-acpi_ut_get_resource_end_tag(union acpi_operand_object * obj_desc,
-			     u8 ** end_tag)
+acpi_ut_get_resource_end_tag(union acpi_operand_object *obj_desc, u8 **end_tag)
 {
 	acpi_status status;
 
-- 
cgit v1.2.3


From 9c0d793945a343e13d8b0ab20ac825ad5705bcf1 Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Wed, 19 Dec 2012 05:37:21 +0000
Subject: ACPICA: Cleanup coding style to reduce differences between Linux and
 ACPICA.

This is a cosmetic patch only. Comparison of the resulting binary showed
only line number differences.

This patch does not affect the generation of the Linux binary.
This patch decreases 314 lines of 20121018 divergence.diff.

ACPICA core uses ()'s on return statements. This is a known and committed
differences from Linux standard coding style.

This patch cleans up the Linux side ACPICA code to use this codying style
in order to reduce the source code differences between Linux and ACPICA.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/exconfig.c |  4 ++--
 drivers/acpi/acpica/hwgpe.c    |  6 ++++--
 drivers/acpi/acpica/hwvalid.c  | 18 +++++++++---------
 drivers/acpi/acpica/nspredef.c |  2 +-
 drivers/acpi/acpica/nswalk.c   |  4 ++--
 drivers/acpi/acpica/nsxfname.c | 14 +++++++-------
 drivers/acpi/acpica/rscalc.c   |  2 +-
 drivers/acpi/acpica/rsutils.c  |  2 +-
 drivers/acpi/acpica/tbutils.c  |  2 +-
 drivers/acpi/acpica/utcopy.c   |  4 ++--
 drivers/acpi/acpica/utlock.c   | 14 +++++++-------
 11 files changed, 37 insertions(+), 35 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/exconfig.c b/drivers/acpi/acpica/exconfig.c
index b4f42f56fc34..d0cc2a40edfb 100644
--- a/drivers/acpi/acpica/exconfig.c
+++ b/drivers/acpi/acpica/exconfig.c
@@ -304,7 +304,7 @@ acpi_ex_region_read(union acpi_operand_object *obj_desc, u32 length, u8 *buffer)
 		    acpi_ev_address_space_dispatch(obj_desc, NULL, ACPI_READ,
 						   region_offset, 8, &value);
 		if (ACPI_FAILURE(status)) {
-			return status;
+			return (status);
 		}
 
 		*buffer = (u8)value;
@@ -312,7 +312,7 @@ acpi_ex_region_read(union acpi_operand_object *obj_desc, u32 length, u8 *buffer)
 		region_offset++;
 	}
 
-	return AE_OK;
+	return (AE_OK);
 }
 
 /*******************************************************************************
diff --git a/drivers/acpi/acpica/hwgpe.c b/drivers/acpi/acpica/hwgpe.c
index 64560045052d..095666bdad07 100644
--- a/drivers/acpi/acpica/hwgpe.c
+++ b/drivers/acpi/acpica/hwgpe.c
@@ -69,8 +69,10 @@ acpi_hw_enable_wakeup_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
 
 u32 acpi_hw_get_gpe_register_bit(struct acpi_gpe_event_info *gpe_event_info)
 {
-	return (u32)1 << (gpe_event_info->gpe_number -
-		 gpe_event_info->register_info->base_gpe_number);
+
+	return ((u32)1 <<
+		(gpe_event_info->gpe_number -
+		 gpe_event_info->register_info->base_gpe_number));
 }
 
 /******************************************************************************
diff --git a/drivers/acpi/acpica/hwvalid.c b/drivers/acpi/acpica/hwvalid.c
index b6aae58299dc..70686cd0332e 100644
--- a/drivers/acpi/acpica/hwvalid.c
+++ b/drivers/acpi/acpica/hwvalid.c
@@ -135,7 +135,7 @@ acpi_hw_validate_io_request(acpi_io_address address, u32 bit_width)
 	if ((bit_width != 8) && (bit_width != 16) && (bit_width != 32)) {
 		ACPI_ERROR((AE_INFO,
 			    "Bad BitWidth parameter: %8.8X", bit_width));
-		return AE_BAD_PARAMETER;
+		return (AE_BAD_PARAMETER);
 	}
 
 	port_info = acpi_protected_ports;
@@ -234,11 +234,11 @@ acpi_status acpi_hw_read_port(acpi_io_address address, u32 *value, u32 width)
 	status = acpi_hw_validate_io_request(address, width);
 	if (ACPI_SUCCESS(status)) {
 		status = acpi_os_read_port(address, value, width);
-		return status;
+		return (status);
 	}
 
 	if (status != AE_AML_ILLEGAL_ADDRESS) {
-		return status;
+		return (status);
 	}
 
 	/*
@@ -253,7 +253,7 @@ acpi_status acpi_hw_read_port(acpi_io_address address, u32 *value, u32 width)
 		if (acpi_hw_validate_io_request(address, 8) == AE_OK) {
 			status = acpi_os_read_port(address, &one_byte, 8);
 			if (ACPI_FAILURE(status)) {
-				return status;
+				return (status);
 			}
 
 			*value |= (one_byte << i);
@@ -262,7 +262,7 @@ acpi_status acpi_hw_read_port(acpi_io_address address, u32 *value, u32 width)
 		address++;
 	}
 
-	return AE_OK;
+	return (AE_OK);
 }
 
 /******************************************************************************
@@ -297,11 +297,11 @@ acpi_status acpi_hw_write_port(acpi_io_address address, u32 value, u32 width)
 	status = acpi_hw_validate_io_request(address, width);
 	if (ACPI_SUCCESS(status)) {
 		status = acpi_os_write_port(address, value, width);
-		return status;
+		return (status);
 	}
 
 	if (status != AE_AML_ILLEGAL_ADDRESS) {
-		return status;
+		return (status);
 	}
 
 	/*
@@ -317,12 +317,12 @@ acpi_status acpi_hw_write_port(acpi_io_address address, u32 value, u32 width)
 			status =
 			    acpi_os_write_port(address, (value >> i) & 0xFF, 8);
 			if (ACPI_FAILURE(status)) {
-				return status;
+				return (status);
 			}
 		}
 
 		address++;
 	}
 
-	return AE_OK;
+	return (AE_OK);
 }
diff --git a/drivers/acpi/acpica/nspredef.c b/drivers/acpi/acpica/nspredef.c
index 352be3bd1562..1f0e93401436 100644
--- a/drivers/acpi/acpica/nspredef.c
+++ b/drivers/acpi/acpica/nspredef.c
@@ -147,7 +147,7 @@ acpi_ns_check_predefined_names(struct acpi_namespace_node *node,
 
 	pathname = acpi_ns_get_external_pathname(node);
 	if (!pathname) {
-		return AE_OK;	/* Could not get pathname, ignore */
+		return (AE_OK);	/* Could not get pathname, ignore */
 	}
 
 	/*
diff --git a/drivers/acpi/acpica/nswalk.c b/drivers/acpi/acpica/nswalk.c
index 0483877f26b8..4657e75624c4 100644
--- a/drivers/acpi/acpica/nswalk.c
+++ b/drivers/acpi/acpica/nswalk.c
@@ -76,12 +76,12 @@ struct acpi_namespace_node *acpi_ns_get_next_node(struct acpi_namespace_node
 
 		/* It's really the parent's _scope_ that we want */
 
-		return parent_node->child;
+		return (parent_node->child);
 	}
 
 	/* Otherwise just return the next peer */
 
-	return child_node->peer;
+	return (child_node->peer);
 }
 
 /*******************************************************************************
diff --git a/drivers/acpi/acpica/nsxfname.c b/drivers/acpi/acpica/nsxfname.c
index 811c6f13f476..520bab471dbf 100644
--- a/drivers/acpi/acpica/nsxfname.c
+++ b/drivers/acpi/acpica/nsxfname.c
@@ -539,14 +539,14 @@ acpi_status acpi_install_method(u8 *buffer)
 	/* Parameter validation */
 
 	if (!buffer) {
-		return AE_BAD_PARAMETER;
+		return (AE_BAD_PARAMETER);
 	}
 
 	/* Table must be a DSDT or SSDT */
 
 	if (!ACPI_COMPARE_NAME(table->signature, ACPI_SIG_DSDT) &&
 	    !ACPI_COMPARE_NAME(table->signature, ACPI_SIG_SSDT)) {
-		return AE_BAD_HEADER;
+		return (AE_BAD_HEADER);
 	}
 
 	/* First AML opcode in the table must be a control method */
@@ -554,7 +554,7 @@ acpi_status acpi_install_method(u8 *buffer)
 	parser_state.aml = buffer + sizeof(struct acpi_table_header);
 	opcode = acpi_ps_peek_opcode(&parser_state);
 	if (opcode != AML_METHOD_OP) {
-		return AE_BAD_PARAMETER;
+		return (AE_BAD_PARAMETER);
 	}
 
 	/* Extract method information from the raw AML */
@@ -572,13 +572,13 @@ acpi_status acpi_install_method(u8 *buffer)
 	 */
 	aml_buffer = ACPI_ALLOCATE(aml_length);
 	if (!aml_buffer) {
-		return AE_NO_MEMORY;
+		return (AE_NO_MEMORY);
 	}
 
 	method_obj = acpi_ut_create_internal_object(ACPI_TYPE_METHOD);
 	if (!method_obj) {
 		ACPI_FREE(aml_buffer);
-		return AE_NO_MEMORY;
+		return (AE_NO_MEMORY);
 	}
 
 	/* Lock namespace for acpi_ns_lookup, we may be creating a new node */
@@ -644,12 +644,12 @@ acpi_status acpi_install_method(u8 *buffer)
 	/* Remove local reference to the method object */
 
 	acpi_ut_remove_reference(method_obj);
-	return status;
+	return (status);
 
 error_exit:
 
 	ACPI_FREE(aml_buffer);
 	ACPI_FREE(method_obj);
-	return status;
+	return (status);
 }
 ACPI_EXPORT_SYMBOL(acpi_install_method)
diff --git a/drivers/acpi/acpica/rscalc.c b/drivers/acpi/acpica/rscalc.c
index 147feb6aa2a0..4f39bd663099 100644
--- a/drivers/acpi/acpica/rscalc.c
+++ b/drivers/acpi/acpica/rscalc.c
@@ -84,7 +84,7 @@ static u8 acpi_rs_count_set_bits(u16 bit_field)
 		bit_field &= (u16) (bit_field - 1);
 	}
 
-	return bits_set;
+	return (bits_set);
 }
 
 /*******************************************************************************
diff --git a/drivers/acpi/acpica/rsutils.c b/drivers/acpi/acpica/rsutils.c
index 441447f238f0..5adae5a036aa 100644
--- a/drivers/acpi/acpica/rsutils.c
+++ b/drivers/acpi/acpica/rsutils.c
@@ -108,7 +108,7 @@ u16 acpi_rs_encode_bitmask(u8 * list, u8 count)
 		mask |= (0x1 << list[i]);
 	}
 
-	return mask;
+	return (mask);
 }
 
 /*******************************************************************************
diff --git a/drivers/acpi/acpica/tbutils.c b/drivers/acpi/acpica/tbutils.c
index 285e24b97382..e3cc315d7744 100644
--- a/drivers/acpi/acpica/tbutils.c
+++ b/drivers/acpi/acpica/tbutils.c
@@ -147,7 +147,7 @@ acpi_status acpi_tb_initialize_facs(void)
 					 ACPI_CAST_INDIRECT_PTR(struct
 								acpi_table_header,
 								&acpi_gbl_FACS));
-	return status;
+	return (status);
 }
 #endif				/* !ACPI_REDUCED_HARDWARE */
 
diff --git a/drivers/acpi/acpica/utcopy.c b/drivers/acpi/acpica/utcopy.c
index 294692ae76e9..99549eeac0c6 100644
--- a/drivers/acpi/acpica/utcopy.c
+++ b/drivers/acpi/acpica/utcopy.c
@@ -785,7 +785,7 @@ acpi_ut_copy_simple_object(union acpi_operand_object *source_desc,
 
 		status = acpi_os_create_mutex(&dest_desc->mutex.os_mutex);
 		if (ACPI_FAILURE(status)) {
-			return status;
+			return (status);
 		}
 		break;
 
@@ -795,7 +795,7 @@ acpi_ut_copy_simple_object(union acpi_operand_object *source_desc,
 						  &dest_desc->event.
 						  os_semaphore);
 		if (ACPI_FAILURE(status)) {
-			return status;
+			return (status);
 		}
 		break;
 
diff --git a/drivers/acpi/acpica/utlock.c b/drivers/acpi/acpica/utlock.c
index b1eb7f17e110..8d1a7499e401 100644
--- a/drivers/acpi/acpica/utlock.c
+++ b/drivers/acpi/acpica/utlock.c
@@ -66,11 +66,11 @@ acpi_status acpi_ut_create_rw_lock(struct acpi_rw_lock *lock)
 	lock->num_readers = 0;
 	status = acpi_os_create_mutex(&lock->reader_mutex);
 	if (ACPI_FAILURE(status)) {
-		return status;
+		return (status);
 	}
 
 	status = acpi_os_create_mutex(&lock->writer_mutex);
-	return status;
+	return (status);
 }
 
 void acpi_ut_delete_rw_lock(struct acpi_rw_lock *lock)
@@ -108,7 +108,7 @@ acpi_status acpi_ut_acquire_read_lock(struct acpi_rw_lock *lock)
 
 	status = acpi_os_acquire_mutex(lock->reader_mutex, ACPI_WAIT_FOREVER);
 	if (ACPI_FAILURE(status)) {
-		return status;
+		return (status);
 	}
 
 	/* Acquire the write lock only for the first reader */
@@ -121,7 +121,7 @@ acpi_status acpi_ut_acquire_read_lock(struct acpi_rw_lock *lock)
 	}
 
 	acpi_os_release_mutex(lock->reader_mutex);
-	return status;
+	return (status);
 }
 
 acpi_status acpi_ut_release_read_lock(struct acpi_rw_lock *lock)
@@ -130,7 +130,7 @@ acpi_status acpi_ut_release_read_lock(struct acpi_rw_lock *lock)
 
 	status = acpi_os_acquire_mutex(lock->reader_mutex, ACPI_WAIT_FOREVER);
 	if (ACPI_FAILURE(status)) {
-		return status;
+		return (status);
 	}
 
 	/* Release the write lock only for the very last reader */
@@ -141,7 +141,7 @@ acpi_status acpi_ut_release_read_lock(struct acpi_rw_lock *lock)
 	}
 
 	acpi_os_release_mutex(lock->reader_mutex);
-	return status;
+	return (status);
 }
 
 /*******************************************************************************
@@ -165,7 +165,7 @@ acpi_status acpi_ut_acquire_write_lock(struct acpi_rw_lock *lock)
 	acpi_status status;
 
 	status = acpi_os_acquire_mutex(lock->writer_mutex, ACPI_WAIT_FOREVER);
-	return status;
+	return (status);
 }
 
 void acpi_ut_release_write_lock(struct acpi_rw_lock *lock)
-- 
cgit v1.2.3


From 7b6afb6782053f9679f5b9f05287f8c700d7d68f Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Wed, 19 Dec 2012 05:37:29 +0000
Subject: ACPICA: Fix broken call depth tracing logic.

This patch does not affect the generation of the Linux binary.
This patch decreases 26 lines of 20121018 divergence.diff.

The ACPICA uses a call depth tracing mechanism by wrapping the return
statements with return macros and marking the entrance with
ACPI_FUNCTION_TRACE_ macros. There are other ACPI_FUNCTION_ macros used
to mark the functions not using this tracing mechanism.

This patch fixes broken call depth tracing logic.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/exfldio.c  | 1 -
 drivers/acpi/acpica/nsxfeval.c | 4 ++--
 2 files changed, 2 insertions(+), 3 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/exfldio.c b/drivers/acpi/acpica/exfldio.c
index aa2ccfb7cb61..2c2146cfa6a1 100644
--- a/drivers/acpi/acpica/exfldio.c
+++ b/drivers/acpi/acpica/exfldio.c
@@ -329,7 +329,6 @@ acpi_ex_access_region(union acpi_operand_object *obj_desc,
 static u8
 acpi_ex_register_overflow(union acpi_operand_object *obj_desc, u64 value)
 {
-	ACPI_FUNCTION_NAME(ex_register_overflow);
 
 	if (obj_desc->common_field.bit_length >= ACPI_INTEGER_BIT_SIZE) {
 		/*
diff --git a/drivers/acpi/acpica/nsxfeval.c b/drivers/acpi/acpica/nsxfeval.c
index a5d8ccce10fd..ef29925d1620 100644
--- a/drivers/acpi/acpica/nsxfeval.c
+++ b/drivers/acpi/acpica/nsxfeval.c
@@ -492,7 +492,7 @@ acpi_walk_namespace(acpi_object_type type,
 	 */
 	status = acpi_ut_acquire_read_lock(&acpi_gbl_namespace_rw_lock);
 	if (ACPI_FAILURE(status)) {
-		return status;
+		return_ACPI_STATUS(status);
 	}
 
 	/*
@@ -550,7 +550,7 @@ acpi_ns_get_device_callback(acpi_handle obj_handle,
 
 	status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
 	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
+		return (status);
 	}
 
 	node = acpi_ns_validate_handle(obj_handle);
-- 
cgit v1.2.3


From f8dca243eb1e7e97fb6bff60677e4bbae3f6f558 Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Thu, 20 Dec 2012 01:09:02 +0000
Subject: ACPICA: Enhance error messages.

This patch decreases 29 lines of 20121018 divergence.diff.

This patch updates error messages that already have been enhanced in
ACPICA. This patch can also help to reduce the source code differences
between Linux and ACPICA.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/evgpe.c  | 2 +-
 drivers/acpi/acpica/utmisc.c | 8 ++++----
 2 files changed, 5 insertions(+), 5 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/evgpe.c b/drivers/acpi/acpica/evgpe.c
index a137ce813c50..4cbb6007068e 100644
--- a/drivers/acpi/acpica/evgpe.c
+++ b/drivers/acpi/acpica/evgpe.c
@@ -765,7 +765,7 @@ acpi_ev_gpe_dispatch(struct acpi_namespace_node *gpe_device,
 					 gpe_event_info);
 		if (ACPI_FAILURE(status)) {
 			ACPI_EXCEPTION((AE_INFO, status,
-					"Unable to queue handler for GPE%2X - event disabled",
+					"Unable to queue handler for GPE%02X - event disabled",
 					gpe_number));
 		}
 		break;
diff --git a/drivers/acpi/acpica/utmisc.c b/drivers/acpi/acpica/utmisc.c
index 9286a69eb9aa..28819929863c 100644
--- a/drivers/acpi/acpica/utmisc.c
+++ b/drivers/acpi/acpica/utmisc.c
@@ -748,12 +748,12 @@ void acpi_ut_repair_name(char *name)
 
 		if (!acpi_gbl_enable_interpreter_slack) {
 			ACPI_WARNING((AE_INFO,
-				      "Found bad character(s) in name, repaired: [%4.4s]\n",
-				      name));
+				      "Invalid character(s) in name (0x%.8X), repaired: [%4.4s]",
+					  original_name, name));
 		} else {
 			ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-					  "Found bad character(s) in name, repaired: [%4.4s]\n",
-					  name));
+					  "Invalid character(s) in name (0x%.8X), repaired: [%4.4s]",
+					  original_name, name));
 		}
 	}
 }
-- 
cgit v1.2.3


From 75e444606d88b877dfb1a57b0a0ae81ed5320922 Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Wed, 19 Dec 2012 05:37:41 +0000
Subject: ACPICA: Update initialization codes.

This patch decreases 18 lines of 20121018 divergence.diff.

This patch updates initialization codes as they are already been updated in
ACPICA. This can also help to reduce source code differences between Linux
and ACPICA.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/utglobal.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/utglobal.c b/drivers/acpi/acpica/utglobal.c
index c083611c76a6..7b4dd21009e6 100644
--- a/drivers/acpi/acpica/utglobal.c
+++ b/drivers/acpi/acpica/utglobal.c
@@ -293,11 +293,11 @@ acpi_status acpi_ut_init_globals(void)
 
 	/* GPE support */
 
+	acpi_gbl_all_gpes_initialized = FALSE;
 	acpi_gbl_gpe_xrupt_list_head = NULL;
 	acpi_gbl_gpe_fadt_blocks[0] = NULL;
 	acpi_gbl_gpe_fadt_blocks[1] = NULL;
 	acpi_current_gpe_count = 0;
-	acpi_gbl_all_gpes_initialized = FALSE;
 
 	acpi_gbl_global_event_handler = NULL;
 
@@ -367,6 +367,7 @@ acpi_status acpi_ut_init_globals(void)
 
 #ifdef ACPI_DBG_TRACK_ALLOCATIONS
 	acpi_gbl_display_final_mem_stats = FALSE;
+	acpi_gbl_disable_mem_tracking = FALSE;
 #endif
 
 	return_ACPI_STATUS(AE_OK);
-- 
cgit v1.2.3


From 227158211e8eba104a477c9a263797256811f206 Mon Sep 17 00:00:00 2001
From: Jesper Juhl <jj@chaosbits.net>
Date: Wed, 19 Dec 2012 05:37:47 +0000
Subject: ACPICA: Fix possible memory leak.

Ensure cleanup after a memory allocation failure in dsmethod.c.
Original Linux change from Jesper Juhl.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/dsmethod.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/dsmethod.c b/drivers/acpi/acpica/dsmethod.c
index 735c05996ec6..54c968ab8144 100644
--- a/drivers/acpi/acpica/dsmethod.c
+++ b/drivers/acpi/acpica/dsmethod.c
@@ -378,7 +378,8 @@ acpi_ds_call_control_method(struct acpi_thread_state *thread,
 	 */
 	info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
 	if (!info) {
-		return_ACPI_STATUS(AE_NO_MEMORY);
+		status = AE_NO_MEMORY;
+		goto cleanup;
 	}
 
 	info->parameters = &this_walk_state->operands[0];
-- 
cgit v1.2.3


From 53938551c827d2016912ae5a431a7dad76c2426a Mon Sep 17 00:00:00 2001
From: Chao Guan <chao.guan@intel.com>
Date: Wed, 19 Dec 2012 05:37:53 +0000
Subject: ACPICA: Performance enhancement for ACPI package objects.

This change greatly increases the performance of package objects
within the interpreter. It changes the processing of reference
counts for packages by optimizing for the most common case where
the package subobjects are either integers, strings, or buffers.
Increases the performance of the ASLTS test suite by 1.5X.
Chao Guan. ACPICA BZ 943.
https://www.acpica.org/bugzilla/show_bug.cgi?id=943

Signed-off-by: Chao Guan <chao.guan@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/utdelete.c | 42 +++++++++++++++++++++++++++++++++---------
 1 file changed, 33 insertions(+), 9 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/utdelete.c b/drivers/acpi/acpica/utdelete.c
index 798105443d0f..e806fb02187b 100644
--- a/drivers/acpi/acpica/utdelete.c
+++ b/drivers/acpi/acpica/utdelete.c
@@ -530,18 +530,42 @@ acpi_ut_update_object_reference(union acpi_operand_object *object, u16 action)
 			 */
 			for (i = 0; i < object->package.count; i++) {
 				/*
-				 * Push each element onto the stack for later processing.
-				 * Note: There can be null elements within the package,
-				 * these are simply ignored
+				 * Null package elements are legal and can be simply
+				 * ignored.
 				 */
-				status =
-				    acpi_ut_create_update_state_and_push
-				    (object->package.elements[i], action,
-				     &state_list);
-				if (ACPI_FAILURE(status)) {
-					goto error_exit;
+				next_object = object->package.elements[i];
+				if (!next_object) {
+					continue;
+				}
+
+				switch (next_object->common.type) {
+				case ACPI_TYPE_INTEGER:
+				case ACPI_TYPE_STRING:
+				case ACPI_TYPE_BUFFER:
+					/*
+					 * For these very simple sub-objects, we can just
+					 * update the reference count here and continue.
+					 * Greatly increases performance of this operation.
+					 */
+					acpi_ut_update_ref_count(next_object,
+								 action);
+					break;
+
+				default:
+					/*
+					 * For complex sub-objects, push them onto the stack
+					 * for later processing (this eliminates recursion.)
+					 */
+					status =
+					    acpi_ut_create_update_state_and_push
+					    (next_object, action, &state_list);
+					if (ACPI_FAILURE(status)) {
+						goto error_exit;
+					}
+					break;
 				}
 			}
+			next_object = NULL;
 			break;
 
 		case ACPI_TYPE_BUFFER_FIELD:
-- 
cgit v1.2.3


From 0e770b3263816b4445e2c855f641b172aa26291a Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Wed, 19 Dec 2012 05:37:59 +0000
Subject: ACPICA: Performance: Remove function tracing from critical allocation
 functions.

Tracing is no longer needed for many of the low-level function.
Removing the trace mechanism from these functions improves
performance a small amount, also simplifies the debug trace output.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/nsutils.c  |  8 ++++----
 drivers/acpi/acpica/utdelete.c | 26 +++++++++++++-------------
 drivers/acpi/acpica/utstate.c  | 40 ++++++++++++++++++----------------------
 drivers/acpi/acpica/uttrack.c  | 16 ++++++++--------
 4 files changed, 43 insertions(+), 47 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/nsutils.c b/drivers/acpi/acpica/nsutils.c
index 7e8bd2af806d..4479654760ac 100644
--- a/drivers/acpi/acpica/nsutils.c
+++ b/drivers/acpi/acpica/nsutils.c
@@ -663,17 +663,17 @@ void acpi_ns_terminate(void)
 
 u32 acpi_ns_opens_scope(acpi_object_type type)
 {
-	ACPI_FUNCTION_TRACE_STR(ns_opens_scope, acpi_ut_get_type_name(type));
+	ACPI_FUNCTION_ENTRY();
 
-	if (!acpi_ut_valid_object_type(type)) {
+	if (type > ACPI_TYPE_LOCAL_MAX) {
 
 		/* type code out of range  */
 
 		ACPI_WARNING((AE_INFO, "Invalid Object Type 0x%X", type));
-		return_UINT32(ACPI_NS_NORMAL);
+		return (ACPI_NS_NORMAL);
 	}
 
-	return_UINT32(((u32)acpi_gbl_ns_properties[type]) & ACPI_NS_NEWSCOPE);
+	return (((u32)acpi_gbl_ns_properties[type]) & ACPI_NS_NEWSCOPE);
 }
 
 /*******************************************************************************
diff --git a/drivers/acpi/acpica/utdelete.c b/drivers/acpi/acpica/utdelete.c
index e806fb02187b..53e6af801661 100644
--- a/drivers/acpi/acpica/utdelete.c
+++ b/drivers/acpi/acpica/utdelete.c
@@ -340,7 +340,7 @@ void acpi_ut_delete_internal_object_list(union acpi_operand_object **obj_list)
 {
 	union acpi_operand_object **internal_obj;
 
-	ACPI_FUNCTION_TRACE(ut_delete_internal_object_list);
+	ACPI_FUNCTION_NAME(ut_delete_internal_object_list);
 
 	/* Walk the null-terminated internal list */
 
@@ -351,7 +351,7 @@ void acpi_ut_delete_internal_object_list(union acpi_operand_object **obj_list)
 	/* Free the combined parameter pointer list and object array */
 
 	ACPI_FREE(obj_list);
-	return_VOID;
+	return;
 }
 
 /*******************************************************************************
@@ -484,7 +484,7 @@ acpi_ut_update_object_reference(union acpi_operand_object *object, u16 action)
 	union acpi_generic_state *state;
 	u32 i;
 
-	ACPI_FUNCTION_TRACE_PTR(ut_update_object_reference, object);
+	ACPI_FUNCTION_NAME(ut_update_object_reference);
 
 	while (object) {
 
@@ -493,7 +493,7 @@ acpi_ut_update_object_reference(union acpi_operand_object *object, u16 action)
 		if (ACPI_GET_DESCRIPTOR_TYPE(object) == ACPI_DESC_TYPE_NAMED) {
 			ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
 					  "Object %p is NS handle\n", object));
-			return_ACPI_STATUS(AE_OK);
+			return (AE_OK);
 		}
 
 		/*
@@ -643,7 +643,7 @@ acpi_ut_update_object_reference(union acpi_operand_object *object, u16 action)
 		}
 	}
 
-	return_ACPI_STATUS(AE_OK);
+	return (AE_OK);
 
       error_exit:
 
@@ -657,7 +657,7 @@ acpi_ut_update_object_reference(union acpi_operand_object *object, u16 action)
 		acpi_ut_delete_generic_state(state);
 	}
 
-	return_ACPI_STATUS(status);
+	return (status);
 }
 
 /*******************************************************************************
@@ -676,12 +676,12 @@ acpi_ut_update_object_reference(union acpi_operand_object *object, u16 action)
 void acpi_ut_add_reference(union acpi_operand_object *object)
 {
 
-	ACPI_FUNCTION_TRACE_PTR(ut_add_reference, object);
+	ACPI_FUNCTION_NAME(ut_add_reference);
 
 	/* Ensure that we have a valid object */
 
 	if (!acpi_ut_valid_internal_object(object)) {
-		return_VOID;
+		return;
 	}
 
 	ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
@@ -691,7 +691,7 @@ void acpi_ut_add_reference(union acpi_operand_object *object)
 	/* Increment the reference count */
 
 	(void)acpi_ut_update_object_reference(object, REF_INCREMENT);
-	return_VOID;
+	return;
 }
 
 /*******************************************************************************
@@ -709,7 +709,7 @@ void acpi_ut_add_reference(union acpi_operand_object *object)
 void acpi_ut_remove_reference(union acpi_operand_object *object)
 {
 
-	ACPI_FUNCTION_TRACE_PTR(ut_remove_reference, object);
+	ACPI_FUNCTION_NAME(ut_remove_reference);
 
 	/*
 	 * Allow a NULL pointer to be passed in, just ignore it. This saves
@@ -718,13 +718,13 @@ void acpi_ut_remove_reference(union acpi_operand_object *object)
 	 */
 	if (!object ||
 	    (ACPI_GET_DESCRIPTOR_TYPE(object) == ACPI_DESC_TYPE_NAMED)) {
-		return_VOID;
+		return;
 	}
 
 	/* Ensure that we have a valid object */
 
 	if (!acpi_ut_valid_internal_object(object)) {
-		return_VOID;
+		return;
 	}
 
 	ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
@@ -737,5 +737,5 @@ void acpi_ut_remove_reference(union acpi_operand_object *object)
 	 * of all subobjects!)
 	 */
 	(void)acpi_ut_update_object_reference(object, REF_DECREMENT);
-	return_VOID;
+	return;
 }
diff --git a/drivers/acpi/acpica/utstate.c b/drivers/acpi/acpica/utstate.c
index cee0473ba813..26a0c23c3f4b 100644
--- a/drivers/acpi/acpica/utstate.c
+++ b/drivers/acpi/acpica/utstate.c
@@ -97,14 +97,13 @@ void
 acpi_ut_push_generic_state(union acpi_generic_state **list_head,
 			   union acpi_generic_state *state)
 {
-	ACPI_FUNCTION_TRACE(ut_push_generic_state);
+	ACPI_FUNCTION_ENTRY();
 
 	/* Push the state object onto the front of the list (stack) */
 
 	state->common.next = *list_head;
 	*list_head = state;
-
-	return_VOID;
+	return;
 }
 
 /*******************************************************************************
@@ -124,7 +123,7 @@ union acpi_generic_state *acpi_ut_pop_generic_state(union acpi_generic_state
 {
 	union acpi_generic_state *state;
 
-	ACPI_FUNCTION_TRACE(ut_pop_generic_state);
+	ACPI_FUNCTION_ENTRY();
 
 	/* Remove the state object at the head of the list (stack) */
 
@@ -136,7 +135,7 @@ union acpi_generic_state *acpi_ut_pop_generic_state(union acpi_generic_state
 		*list_head = state->common.next;
 	}
 
-	return_PTR(state);
+	return (state);
 }
 
 /*******************************************************************************
@@ -186,13 +185,13 @@ struct acpi_thread_state *acpi_ut_create_thread_state(void)
 {
 	union acpi_generic_state *state;
 
-	ACPI_FUNCTION_TRACE(ut_create_thread_state);
+	ACPI_FUNCTION_ENTRY();
 
 	/* Create the generic state object */
 
 	state = acpi_ut_create_generic_state();
 	if (!state) {
-		return_PTR(NULL);
+		return (NULL);
 	}
 
 	/* Init fields specific to the update struct */
@@ -207,7 +206,7 @@ struct acpi_thread_state *acpi_ut_create_thread_state(void)
 		state->thread.thread_id = (acpi_thread_id) 1;
 	}
 
-	return_PTR((struct acpi_thread_state *)state);
+	return ((struct acpi_thread_state *)state);
 }
 
 /*******************************************************************************
@@ -230,13 +229,13 @@ union acpi_generic_state *acpi_ut_create_update_state(union acpi_operand_object
 {
 	union acpi_generic_state *state;
 
-	ACPI_FUNCTION_TRACE_PTR(ut_create_update_state, object);
+	ACPI_FUNCTION_ENTRY();
 
 	/* Create the generic state object */
 
 	state = acpi_ut_create_generic_state();
 	if (!state) {
-		return_PTR(NULL);
+		return (NULL);
 	}
 
 	/* Init fields specific to the update struct */
@@ -244,8 +243,7 @@ union acpi_generic_state *acpi_ut_create_update_state(union acpi_operand_object
 	state->common.descriptor_type = ACPI_DESC_TYPE_STATE_UPDATE;
 	state->update.object = object;
 	state->update.value = action;
-
-	return_PTR(state);
+	return (state);
 }
 
 /*******************************************************************************
@@ -267,13 +265,13 @@ union acpi_generic_state *acpi_ut_create_pkg_state(void *internal_object,
 {
 	union acpi_generic_state *state;
 
-	ACPI_FUNCTION_TRACE_PTR(ut_create_pkg_state, internal_object);
+	ACPI_FUNCTION_ENTRY();
 
 	/* Create the generic state object */
 
 	state = acpi_ut_create_generic_state();
 	if (!state) {
-		return_PTR(NULL);
+		return (NULL);
 	}
 
 	/* Init fields specific to the update struct */
@@ -283,8 +281,7 @@ union acpi_generic_state *acpi_ut_create_pkg_state(void *internal_object,
 	state->pkg.dest_object = external_object;
 	state->pkg.index = index;
 	state->pkg.num_packages = 1;
-
-	return_PTR(state);
+	return (state);
 }
 
 /*******************************************************************************
@@ -304,21 +301,20 @@ union acpi_generic_state *acpi_ut_create_control_state(void)
 {
 	union acpi_generic_state *state;
 
-	ACPI_FUNCTION_TRACE(ut_create_control_state);
+	ACPI_FUNCTION_ENTRY();
 
 	/* Create the generic state object */
 
 	state = acpi_ut_create_generic_state();
 	if (!state) {
-		return_PTR(NULL);
+		return (NULL);
 	}
 
 	/* Init fields specific to the control struct */
 
 	state->common.descriptor_type = ACPI_DESC_TYPE_STATE_CONTROL;
 	state->common.state = ACPI_CONTROL_CONDITIONAL_EXECUTING;
-
-	return_PTR(state);
+	return (state);
 }
 
 /*******************************************************************************
@@ -336,12 +332,12 @@ union acpi_generic_state *acpi_ut_create_control_state(void)
 
 void acpi_ut_delete_generic_state(union acpi_generic_state *state)
 {
-	ACPI_FUNCTION_TRACE(ut_delete_generic_state);
+	ACPI_FUNCTION_ENTRY();
 
 	/* Ignore null state */
 
 	if (state) {
 		(void)acpi_os_release_object(acpi_gbl_state_cache, state);
 	}
-	return_VOID;
+	return;
 }
diff --git a/drivers/acpi/acpica/uttrack.c b/drivers/acpi/acpica/uttrack.c
index a424a9e3fea4..866f96e14ade 100644
--- a/drivers/acpi/acpica/uttrack.c
+++ b/drivers/acpi/acpica/uttrack.c
@@ -436,10 +436,10 @@ acpi_ut_remove_allocation(struct acpi_debug_mem_block *allocation,
 	struct acpi_memory_list *mem_list;
 	acpi_status status;
 
-	ACPI_FUNCTION_TRACE(ut_remove_allocation);
+	ACPI_FUNCTION_NAME(ut_remove_allocation);
 
 	if (acpi_gbl_disable_mem_tracking) {
-		return_ACPI_STATUS(AE_OK);
+		return (AE_OK);
 	}
 
 	mem_list = acpi_gbl_global_list;
@@ -450,12 +450,12 @@ acpi_ut_remove_allocation(struct acpi_debug_mem_block *allocation,
 		ACPI_ERROR((module, line,
 			    "Empty allocation list, nothing to free!"));
 
-		return_ACPI_STATUS(AE_OK);
+		return (AE_OK);
 	}
 
 	status = acpi_ut_acquire_mutex(ACPI_MTX_MEMORY);
 	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
+		return (status);
 	}
 
 	/* Unlink */
@@ -470,15 +470,15 @@ acpi_ut_remove_allocation(struct acpi_debug_mem_block *allocation,
 		(allocation->next)->previous = allocation->previous;
 	}
 
+	ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "Freeing %p, size 0%X\n",
+			  &allocation->user_space, allocation->size));
+
 	/* Mark the segment as deleted */
 
 	ACPI_MEMSET(&allocation->user_space, 0xEA, allocation->size);
 
-	ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "Freeing size 0%X\n",
-			  allocation->size));
-
 	status = acpi_ut_release_mutex(ACPI_MTX_MEMORY);
-	return_ACPI_STATUS(status);
+	return (status);
 }
 
 /*******************************************************************************
-- 
cgit v1.2.3


From 886308ecea88236e88fba2a7f50d8ce22a40c4fe Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Wed, 19 Dec 2012 05:38:07 +0000
Subject: ACPICA: Debugger: Major update for the Disassemble<method> command.

This command was downreved and did not properly disassemble control
methods with any reasonable complexity. This fix brings the command
up to the same level as the rest of the disassembler.  Adds one
new file, dmdeferred.c, which is existing code that is now common
with the main disassembler and the debugger disassembl command.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/acutils.h  |  7 ++--
 drivers/acpi/acpica/rscalc.c   |  4 ++-
 drivers/acpi/acpica/rscreate.c |  4 +--
 drivers/acpi/acpica/rslist.c   |  7 ++--
 drivers/acpi/acpica/utresrc.c  | 74 ++++++++++++++++++++++--------------------
 5 files changed, 52 insertions(+), 44 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/acutils.h b/drivers/acpi/acpica/acutils.h
index b0f5f92b674a..6e51d193c3eb 100644
--- a/drivers/acpi/acpica/acutils.h
+++ b/drivers/acpi/acpica/acutils.h
@@ -535,12 +535,15 @@ acpi_ut_display_init_pathname(u8 type,
  * utresrc
  */
 acpi_status
-acpi_ut_walk_aml_resources(u8 *aml,
+acpi_ut_walk_aml_resources(struct acpi_walk_state *walk_state,
+			   u8 *aml,
 			   acpi_size aml_length,
 			   acpi_walk_aml_callback user_function,
 			   void **context);
 
-acpi_status acpi_ut_validate_resource(void *aml, u8 *return_index);
+acpi_status
+acpi_ut_validate_resource(struct acpi_walk_state *walk_state,
+			  void *aml, u8 *return_index);
 
 u32 acpi_ut_get_descriptor_length(void *aml);
 
diff --git a/drivers/acpi/acpica/rscalc.c b/drivers/acpi/acpica/rscalc.c
index 4f39bd663099..da178b4d0521 100644
--- a/drivers/acpi/acpica/rscalc.c
+++ b/drivers/acpi/acpica/rscalc.c
@@ -407,7 +407,9 @@ acpi_rs_get_list_length(u8 * aml_buffer,
 
 		/* Validate the Resource Type and Resource Length */
 
-		status = acpi_ut_validate_resource(aml_buffer, &resource_index);
+		status =
+		    acpi_ut_validate_resource(NULL, aml_buffer,
+					      &resource_index);
 		if (ACPI_FAILURE(status)) {
 			/*
 			 * Exit on failure. Cannot continue because the descriptor length
diff --git a/drivers/acpi/acpica/rscreate.c b/drivers/acpi/acpica/rscreate.c
index 81333264e992..55e0908f1b35 100644
--- a/drivers/acpi/acpica/rscreate.c
+++ b/drivers/acpi/acpica/rscreate.c
@@ -98,7 +98,7 @@ acpi_buffer_to_resource(u8 *aml_buffer,
 
 	/* Perform the AML-to-Resource conversion */
 
-	status = acpi_ut_walk_aml_resources(aml_buffer, aml_buffer_length,
+	status = acpi_ut_walk_aml_resources(NULL, aml_buffer, aml_buffer_length,
 					    acpi_rs_convert_aml_to_resources,
 					    &current_resource_ptr);
 	if (status == AE_AML_NO_RESOURCE_END_TAG) {
@@ -174,7 +174,7 @@ acpi_rs_create_resource_list(union acpi_operand_object *aml_buffer,
 	/* Do the conversion */
 
 	resource = output_buffer->pointer;
-	status = acpi_ut_walk_aml_resources(aml_start, aml_buffer_length,
+	status = acpi_ut_walk_aml_resources(NULL, aml_start, aml_buffer_length,
 					    acpi_rs_convert_aml_to_resources,
 					    &resource);
 	if (ACPI_FAILURE(status)) {
diff --git a/drivers/acpi/acpica/rslist.c b/drivers/acpi/acpica/rslist.c
index 8b64db9a3fd2..83e615834a1c 100644
--- a/drivers/acpi/acpica/rslist.c
+++ b/drivers/acpi/acpica/rslist.c
@@ -217,9 +217,10 @@ acpi_rs_convert_resources_to_aml(struct acpi_resource *resource,
 
 		/* Perform final sanity check on the new AML resource descriptor */
 
-		status =
-		    acpi_ut_validate_resource(ACPI_CAST_PTR
-					      (union aml_resource, aml), NULL);
+		status = acpi_ut_validate_resource(NULL,
+						   ACPI_CAST_PTR(union
+								 aml_resource,
+								 aml), NULL);
 		if (ACPI_FAILURE(status)) {
 			return_ACPI_STATUS(status);
 		}
diff --git a/drivers/acpi/acpica/utresrc.c b/drivers/acpi/acpica/utresrc.c
index 7d0a1b5dedff..546ea735fedd 100644
--- a/drivers/acpi/acpica/utresrc.c
+++ b/drivers/acpi/acpica/utresrc.c
@@ -383,26 +383,16 @@ static const u8 acpi_gbl_resource_types[] = {
 	ACPI_VARIABLE_LENGTH	/* 0E *serial_bus */
 };
 
-/*
- * For the iASL compiler/disassembler, we don't want any error messages
- * because the disassembler uses the resource validation code to determine
- * if Buffer objects are actually Resource Templates.
- */
-#ifdef ACPI_ASL_COMPILER
-#define ACPI_RESOURCE_ERROR(plist)
-#else
-#define ACPI_RESOURCE_ERROR(plist)  ACPI_ERROR(plist)
-#endif
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ut_walk_aml_resources
  *
- * PARAMETERS:  aml             - Pointer to the raw AML resource template
- *              aml_length      - Length of the entire template
- *              user_function   - Called once for each descriptor found. If
- *                                NULL, a pointer to the end_tag is returned
- *              context         - Passed to user_function
+ * PARAMETERS:  walk_state          - Current walk info
+ * PARAMETERS:  aml                 - Pointer to the raw AML resource template
+ *              aml_length          - Length of the entire template
+ *              user_function       - Called once for each descriptor found. If
+ *                                    NULL, a pointer to the end_tag is returned
+ *              context             - Passed to user_function
  *
  * RETURN:      Status
  *
@@ -412,7 +402,8 @@ static const u8 acpi_gbl_resource_types[] = {
  ******************************************************************************/
 
 acpi_status
-acpi_ut_walk_aml_resources(u8 *aml,
+acpi_ut_walk_aml_resources(struct acpi_walk_state *walk_state,
+			   u8 *aml,
 			   acpi_size aml_length,
 			   acpi_walk_aml_callback user_function, void **context)
 {
@@ -441,7 +432,8 @@ acpi_ut_walk_aml_resources(u8 *aml,
 
 		/* Validate the Resource Type and Resource Length */
 
-		status = acpi_ut_validate_resource(aml, &resource_index);
+		status =
+		    acpi_ut_validate_resource(walk_state, aml, &resource_index);
 		if (ACPI_FAILURE(status)) {
 			/*
 			 * Exit on failure. Cannot continue because the descriptor length
@@ -498,7 +490,8 @@ acpi_ut_walk_aml_resources(u8 *aml,
 
 		/* Insert an end_tag anyway. acpi_rs_get_list_length always leaves room */
 
-		(void)acpi_ut_validate_resource(end_tag, &resource_index);
+		(void)acpi_ut_validate_resource(walk_state, end_tag,
+						&resource_index);
 		status =
 		    user_function(end_tag, 2, offset, resource_index, context);
 		if (ACPI_FAILURE(status)) {
@@ -513,9 +506,10 @@ acpi_ut_walk_aml_resources(u8 *aml,
  *
  * FUNCTION:    acpi_ut_validate_resource
  *
- * PARAMETERS:  aml             - Pointer to the raw AML resource descriptor
- *              return_index    - Where the resource index is returned. NULL
- *                                if the index is not required.
+ * PARAMETERS:  walk_state          - Current walk info
+ *              aml                 - Pointer to the raw AML resource descriptor
+ *              return_index        - Where the resource index is returned. NULL
+ *                                    if the index is not required.
  *
  * RETURN:      Status, and optionally the Index into the global resource tables
  *
@@ -525,7 +519,9 @@ acpi_ut_walk_aml_resources(u8 *aml,
  *
  ******************************************************************************/
 
-acpi_status acpi_ut_validate_resource(void *aml, u8 *return_index)
+acpi_status
+acpi_ut_validate_resource(struct acpi_walk_state *walk_state,
+			  void *aml, u8 *return_index)
 {
 	union aml_resource *aml_resource;
 	u8 resource_type;
@@ -627,10 +623,12 @@ acpi_status acpi_ut_validate_resource(void *aml, u8 *return_index)
 		if ((aml_resource->common_serial_bus.type == 0) ||
 		    (aml_resource->common_serial_bus.type >
 		     AML_RESOURCE_MAX_SERIALBUSTYPE)) {
-			ACPI_RESOURCE_ERROR((AE_INFO,
-					     "Invalid/unsupported SerialBus resource descriptor: BusType 0x%2.2X",
-					     aml_resource->common_serial_bus.
-					     type));
+			if (walk_state) {
+				ACPI_ERROR((AE_INFO,
+					    "Invalid/unsupported SerialBus resource descriptor: BusType 0x%2.2X",
+					    aml_resource->common_serial_bus.
+					    type));
+			}
 			return (AE_AML_INVALID_RESOURCE_TYPE);
 		}
 	}
@@ -645,18 +643,22 @@ acpi_status acpi_ut_validate_resource(void *aml, u8 *return_index)
 
       invalid_resource:
 
-	ACPI_RESOURCE_ERROR((AE_INFO,
-			     "Invalid/unsupported resource descriptor: Type 0x%2.2X",
-			     resource_type));
+	if (walk_state) {
+		ACPI_ERROR((AE_INFO,
+			    "Invalid/unsupported resource descriptor: Type 0x%2.2X",
+			    resource_type));
+	}
 	return (AE_AML_INVALID_RESOURCE_TYPE);
 
       bad_resource_length:
 
-	ACPI_RESOURCE_ERROR((AE_INFO,
-			     "Invalid resource descriptor length: Type "
-			     "0x%2.2X, Length 0x%4.4X, MinLength 0x%4.4X",
-			     resource_type, resource_length,
-			     minimum_resource_length));
+	if (walk_state) {
+		ACPI_ERROR((AE_INFO,
+			    "Invalid resource descriptor length: Type "
+			    "0x%2.2X, Length 0x%4.4X, MinLength 0x%4.4X",
+			    resource_type, resource_length,
+			    minimum_resource_length));
+	}
 	return (AE_AML_BAD_RESOURCE_LENGTH);
 }
 
@@ -815,7 +817,7 @@ acpi_ut_get_resource_end_tag(union acpi_operand_object *obj_desc, u8 **end_tag)
 
 	/* Validate the template and get a pointer to the end_tag */
 
-	status = acpi_ut_walk_aml_resources(obj_desc->buffer.pointer,
+	status = acpi_ut_walk_aml_resources(NULL, obj_desc->buffer.pointer,
 					    obj_desc->buffer.length, NULL,
 					    (void **)end_tag);
 
-- 
cgit v1.2.3


From 1f06c92110b4512beffc98656286fdc60ed00a85 Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Wed, 19 Dec 2012 05:38:12 +0000
Subject: ACPICA: Disassembler: Add new ACPI 5 interrupt sharing flags.

This changes adds the ShareAndWake and ExclusiveAndWake flags which
were added to the Irq, Interrupt, and Gpio resource descriptors
in ACPI 5.0.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/rsdump.c  | 6 +++---
 drivers/acpi/acpica/utresrc.c | 4 +++-
 2 files changed, 6 insertions(+), 4 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/rsdump.c b/drivers/acpi/acpica/rsdump.c
index 276e52f2236d..0b7381fed2ec 100644
--- a/drivers/acpi/acpica/rsdump.c
+++ b/drivers/acpi/acpica/rsdump.c
@@ -98,7 +98,7 @@ struct acpi_rsdump_info acpi_rs_dump_irq[7] = {
 	 acpi_gbl_he_decode},
 	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(irq.polarity), "Polarity",
 	 acpi_gbl_ll_decode},
-	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(irq.sharable), "Sharing",
+	{ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(irq.sharable), "Sharing",
 	 acpi_gbl_shr_decode},
 	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(irq.interrupt_count),
 	 "Interrupt Count", NULL},
@@ -287,7 +287,7 @@ struct acpi_rsdump_info acpi_rs_dump_ext_irq[8] = {
 	 "Triggering", acpi_gbl_he_decode},
 	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(extended_irq.polarity), "Polarity",
 	 acpi_gbl_ll_decode},
-	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(extended_irq.sharable), "Sharing",
+	{ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(extended_irq.sharable), "Sharing",
 	 acpi_gbl_shr_decode},
 	{ACPI_RSD_SOURCE, ACPI_RSD_OFFSET(extended_irq.resource_source), NULL,
 	 NULL},
@@ -320,7 +320,7 @@ struct acpi_rsdump_info acpi_rs_dump_gpio[16] = {
 	 "ProducerConsumer", acpi_gbl_consume_decode},
 	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(gpio.pin_config), "PinConfig",
 	 acpi_gbl_ppc_decode},
-	{ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(gpio.sharable), "Sharable",
+	{ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(gpio.sharable), "Sharing",
 	 acpi_gbl_shr_decode},
 	{ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(gpio.io_restriction),
 	 "IoRestriction", acpi_gbl_ior_decode},
diff --git a/drivers/acpi/acpica/utresrc.c b/drivers/acpi/acpica/utresrc.c
index 546ea735fedd..8f8eab98ed79 100644
--- a/drivers/acpi/acpica/utresrc.c
+++ b/drivers/acpi/acpica/utresrc.c
@@ -127,7 +127,9 @@ const char *acpi_gbl_rw_decode[] = {
 
 const char *acpi_gbl_shr_decode[] = {
 	"Exclusive",
-	"Shared"
+	"Shared",
+	"ExclusiveAndWake",	/* ACPI 5.0 */
+	"SharedAndWake"		/* ACPI 5.0 */
 };
 
 const char *acpi_gbl_siz_decode[] = {
-- 
cgit v1.2.3


From 2f3faaba5922d3763f3e9398a2b00dc7239e2d27 Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Wed, 19 Dec 2012 05:38:18 +0000
Subject: ACPICA: Add macros to extract flag bits from resource descriptors.

Improves readability and maintainability of the code.  Fixes a
problem with the UART serial bus descriptor for the number of
data bits flags (was incorrectly 2 bits, should be 3).

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/acmacros.h | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/acmacros.h b/drivers/acpi/acpica/acmacros.h
index 5efad99f2169..1fa91f1d8994 100644
--- a/drivers/acpi/acpica/acmacros.h
+++ b/drivers/acpi/acpica/acmacros.h
@@ -293,6 +293,20 @@
 #define ACPI_16BIT_MASK     0x0000FFFF
 #define ACPI_24BIT_MASK     0x00FFFFFF
 
+/* Macros to extract flag bits from position zero */
+
+#define ACPI_GET_1BIT_FLAG(value)                   ((value) & ACPI_1BIT_MASK)
+#define ACPI_GET_2BIT_FLAG(value)                   ((value) & ACPI_2BIT_MASK)
+#define ACPI_GET_3BIT_FLAG(value)                   ((value) & ACPI_3BIT_MASK)
+#define ACPI_GET_4BIT_FLAG(value)                   ((value) & ACPI_4BIT_MASK)
+
+/* Macros to extract flag bits from position one and above */
+
+#define ACPI_EXTRACT_1BIT_FLAG(field, position)     (ACPI_GET_1BIT_FLAG ((field) >> position))
+#define ACPI_EXTRACT_2BIT_FLAG(field, position)     (ACPI_GET_2BIT_FLAG ((field) >> position))
+#define ACPI_EXTRACT_3BIT_FLAG(field, position)     (ACPI_GET_3BIT_FLAG ((field) >> position))
+#define ACPI_EXTRACT_4BIT_FLAG(field, position)     (ACPI_GET_4BIT_FLAG ((field) >> position))
+
 /*
  * An object of type struct acpi_namespace_node can appear in some contexts
  * where a pointer to an object of type union acpi_operand_object can also
-- 
cgit v1.2.3


From 57bf6aefc2b9c89b89bb3fca54725ceea797bb63 Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Wed, 19 Dec 2012 05:38:24 +0000
Subject: ACPICA: Enhance the ACPI_GETx and ACPI_SETx macros.

Improve the implementation of the macros.  Change the SETx macros
to the style of (destination, source).  Also add ACPI_CASTx
companion macros.  Lv Zheng.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/acmacros.h | 20 +++++++-----
 drivers/acpi/acpica/exregion.c |  8 ++---
 drivers/acpi/acpica/rsmisc.c   | 71 ++++++++++++++++++++++--------------------
 3 files changed, 54 insertions(+), 45 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/acmacros.h b/drivers/acpi/acpica/acmacros.h
index 1fa91f1d8994..3ba11d23cba0 100644
--- a/drivers/acpi/acpica/acmacros.h
+++ b/drivers/acpi/acpica/acmacros.h
@@ -49,14 +49,18 @@
  * get into potential aligment issues -- see the STORE macros below.
  * Use with care.
  */
-#define ACPI_GET8(ptr)                  *ACPI_CAST_PTR (u8, ptr)
-#define ACPI_GET16(ptr)                 *ACPI_CAST_PTR (u16, ptr)
-#define ACPI_GET32(ptr)                 *ACPI_CAST_PTR (u32, ptr)
-#define ACPI_GET64(ptr)                 *ACPI_CAST_PTR (u64, ptr)
-#define ACPI_SET8(ptr)                  *ACPI_CAST_PTR (u8, ptr)
-#define ACPI_SET16(ptr)                 *ACPI_CAST_PTR (u16, ptr)
-#define ACPI_SET32(ptr)                 *ACPI_CAST_PTR (u32, ptr)
-#define ACPI_SET64(ptr)                 *ACPI_CAST_PTR (u64, ptr)
+#define ACPI_CAST8(ptr)                 ACPI_CAST_PTR (u8, (ptr))
+#define ACPI_CAST16(ptr)                ACPI_CAST_PTR (u16, (ptr))
+#define ACPI_CAST32(ptr)                ACPI_CAST_PTR (u32, (ptr))
+#define ACPI_CAST64(ptr)                ACPI_CAST_PTR (u64, (ptr))
+#define ACPI_GET8(ptr)                  (*ACPI_CAST8 (ptr))
+#define ACPI_GET16(ptr)                 (*ACPI_CAST16 (ptr))
+#define ACPI_GET32(ptr)                 (*ACPI_CAST32 (ptr))
+#define ACPI_GET64(ptr)                 (*ACPI_CAST64 (ptr))
+#define ACPI_SET8(ptr, val)             (*ACPI_CAST8 (ptr) = (u8) (val))
+#define ACPI_SET16(ptr, val)            (*ACPI_CAST16 (ptr) = (u16) (val))
+#define ACPI_SET32(ptr, val)            (*ACPI_CAST32 (ptr) = (u32) (val))
+#define ACPI_SET64(ptr, val)            (*ACPI_CAST64 (ptr) = (u64) (val))
 
 /*
  * printf() format helpers
diff --git a/drivers/acpi/acpica/exregion.c b/drivers/acpi/acpica/exregion.c
index 06a49245f410..28d3cd975490 100644
--- a/drivers/acpi/acpica/exregion.c
+++ b/drivers/acpi/acpica/exregion.c
@@ -239,19 +239,19 @@ acpi_ex_system_memory_space_handler(u32 function,
 
 		switch (bit_width) {
 		case 8:
-			ACPI_SET8(logical_addr_ptr) = (u8)*value;
+			ACPI_SET8(logical_addr_ptr, *value);
 			break;
 
 		case 16:
-			ACPI_SET16(logical_addr_ptr) = (u16)*value;
+			ACPI_SET16(logical_addr_ptr, *value);
 			break;
 
 		case 32:
-			ACPI_SET32(logical_addr_ptr) = (u32)*value;
+			ACPI_SET32(logical_addr_ptr, *value);
 			break;
 
 		case 64:
-			ACPI_SET64(logical_addr_ptr) = (u64)*value;
+			ACPI_SET64(logical_addr_ptr, *value);
 			break;
 
 		default:
diff --git a/drivers/acpi/acpica/rsmisc.c b/drivers/acpi/acpica/rsmisc.c
index 3d0e15cd1276..7b094ebff1db 100644
--- a/drivers/acpi/acpica/rsmisc.c
+++ b/drivers/acpi/acpica/rsmisc.c
@@ -136,30 +136,30 @@ acpi_rs_convert_aml_to_resource(struct acpi_resource *resource,
 			/*
 			 * Mask and shift the flag bit
 			 */
-			ACPI_SET8(destination) = (u8)
-			    ((ACPI_GET8(source) >> info->value) & 0x01);
+			ACPI_SET8(destination,
+				  ((ACPI_GET8(source) >> info->value) & 0x01));
 			break;
 
 		case ACPI_RSC_2BITFLAG:
 			/*
 			 * Mask and shift the flag bits
 			 */
-			ACPI_SET8(destination) = (u8)
-			    ((ACPI_GET8(source) >> info->value) & 0x03);
+			ACPI_SET8(destination,
+				  ((ACPI_GET8(source) >> info->value) & 0x03));
 			break;
 
 		case ACPI_RSC_3BITFLAG:
 			/*
 			 * Mask and shift the flag bits
 			 */
-			ACPI_SET8(destination) = (u8)
-			    ((ACPI_GET8(source) >> info->value) & 0x07);
+			ACPI_SET8(destination,
+				  ((ACPI_GET8(source) >> info->value) & 0x07));
 			break;
 
 		case ACPI_RSC_COUNT:
 
 			item_count = ACPI_GET8(source);
-			ACPI_SET8(destination) = (u8)item_count;
+			ACPI_SET8(destination, item_count);
 
 			resource->length = resource->length +
 			    (info->value * (item_count - 1));
@@ -168,7 +168,7 @@ acpi_rs_convert_aml_to_resource(struct acpi_resource *resource,
 		case ACPI_RSC_COUNT16:
 
 			item_count = aml_resource_length;
-			ACPI_SET16(destination) = item_count;
+			ACPI_SET16(destination, item_count);
 
 			resource->length = resource->length +
 			    (info->value * (item_count - 1));
@@ -181,13 +181,13 @@ acpi_rs_convert_aml_to_resource(struct acpi_resource *resource,
 
 			resource->length = resource->length + item_count;
 			item_count = item_count / 2;
-			ACPI_SET16(destination) = item_count;
+			ACPI_SET16(destination, item_count);
 			break;
 
 		case ACPI_RSC_COUNT_GPIO_VEN:
 
 			item_count = ACPI_GET8(source);
-			ACPI_SET8(destination) = (u8)item_count;
+			ACPI_SET8(destination, item_count);
 
 			resource->length = resource->length +
 			    (info->value * item_count);
@@ -216,7 +216,7 @@ acpi_rs_convert_aml_to_resource(struct acpi_resource *resource,
 			}
 
 			resource->length = resource->length + item_count;
-			ACPI_SET16(destination) = item_count;
+			ACPI_SET16(destination, item_count);
 			break;
 
 		case ACPI_RSC_COUNT_SERIAL_VEN:
@@ -224,7 +224,7 @@ acpi_rs_convert_aml_to_resource(struct acpi_resource *resource,
 			item_count = ACPI_GET16(source) - info->value;
 
 			resource->length = resource->length + item_count;
-			ACPI_SET16(destination) = item_count;
+			ACPI_SET16(destination, item_count);
 			break;
 
 		case ACPI_RSC_COUNT_SERIAL_RES:
@@ -234,7 +234,7 @@ acpi_rs_convert_aml_to_resource(struct acpi_resource *resource,
 			    - ACPI_GET16(source) - info->value;
 
 			resource->length = resource->length + item_count;
-			ACPI_SET16(destination) = item_count;
+			ACPI_SET16(destination, item_count);
 			break;
 
 		case ACPI_RSC_LENGTH:
@@ -385,7 +385,7 @@ acpi_rs_convert_aml_to_resource(struct acpi_resource *resource,
 			}
 
 			target = ACPI_ADD_PTR(char, resource, info->value);
-			ACPI_SET8(target) = (u8)item_count;
+			ACPI_SET8(target, item_count);
 			break;
 
 		case ACPI_RSC_BITMASK16:
@@ -401,7 +401,7 @@ acpi_rs_convert_aml_to_resource(struct acpi_resource *resource,
 			}
 
 			target = ACPI_ADD_PTR(char, resource, info->value);
-			ACPI_SET8(target) = (u8)item_count;
+			ACPI_SET8(target, item_count);
 			break;
 
 		case ACPI_RSC_EXIT_NE:
@@ -514,37 +514,40 @@ acpi_rs_convert_resource_to_aml(struct acpi_resource *resource,
 			/*
 			 * Clear the flag byte
 			 */
-			ACPI_SET8(destination) = 0;
+			ACPI_SET8(destination, 0);
 			break;
 
 		case ACPI_RSC_1BITFLAG:
 			/*
 			 * Mask and shift the flag bit
 			 */
-			ACPI_SET8(destination) |= (u8)
-			    ((ACPI_GET8(source) & 0x01) << info->value);
+			ACPI_SET_BIT(*ACPI_CAST8(destination), (u8)
+				     ((ACPI_GET8(source) & 0x01) << info->
+				      value));
 			break;
 
 		case ACPI_RSC_2BITFLAG:
 			/*
 			 * Mask and shift the flag bits
 			 */
-			ACPI_SET8(destination) |= (u8)
-			    ((ACPI_GET8(source) & 0x03) << info->value);
+			ACPI_SET_BIT(*ACPI_CAST8(destination), (u8)
+				     ((ACPI_GET8(source) & 0x03) << info->
+				      value));
 			break;
 
 		case ACPI_RSC_3BITFLAG:
 			/*
 			 * Mask and shift the flag bits
 			 */
-			ACPI_SET8(destination) |= (u8)
-			    ((ACPI_GET8(source) & 0x07) << info->value);
+			ACPI_SET_BIT(*ACPI_CAST8(destination), (u8)
+				     ((ACPI_GET8(source) & 0x07) << info->
+				      value));
 			break;
 
 		case ACPI_RSC_COUNT:
 
 			item_count = ACPI_GET8(source);
-			ACPI_SET8(destination) = (u8)item_count;
+			ACPI_SET8(destination, item_count);
 
 			aml_length =
 			    (u16) (aml_length +
@@ -561,18 +564,18 @@ acpi_rs_convert_resource_to_aml(struct acpi_resource *resource,
 		case ACPI_RSC_COUNT_GPIO_PIN:
 
 			item_count = ACPI_GET16(source);
-			ACPI_SET16(destination) = (u16)aml_length;
+			ACPI_SET16(destination, aml_length);
 
 			aml_length = (u16)(aml_length + item_count * 2);
 			target = ACPI_ADD_PTR(void, aml, info->value);
-			ACPI_SET16(target) = (u16)aml_length;
+			ACPI_SET16(target, aml_length);
 			acpi_rs_set_resource_length(aml_length, aml);
 			break;
 
 		case ACPI_RSC_COUNT_GPIO_VEN:
 
 			item_count = ACPI_GET16(source);
-			ACPI_SET16(destination) = (u16)item_count;
+			ACPI_SET16(destination, item_count);
 
 			aml_length =
 			    (u16)(aml_length + (info->value * item_count));
@@ -584,7 +587,7 @@ acpi_rs_convert_resource_to_aml(struct acpi_resource *resource,
 			/* Set resource source string length */
 
 			item_count = ACPI_GET16(source);
-			ACPI_SET16(destination) = (u16)aml_length;
+			ACPI_SET16(destination, aml_length);
 
 			/* Compute offset for the Vendor Data */
 
@@ -594,7 +597,7 @@ acpi_rs_convert_resource_to_aml(struct acpi_resource *resource,
 			/* Set vendor offset only if there is vendor data */
 
 			if (resource->data.gpio.vendor_length) {
-				ACPI_SET16(target) = (u16)aml_length;
+				ACPI_SET16(target, aml_length);
 			}
 
 			acpi_rs_set_resource_length(aml_length, aml);
@@ -603,7 +606,7 @@ acpi_rs_convert_resource_to_aml(struct acpi_resource *resource,
 		case ACPI_RSC_COUNT_SERIAL_VEN:
 
 			item_count = ACPI_GET16(source);
-			ACPI_SET16(destination) = item_count + info->value;
+			ACPI_SET16(destination, item_count + info->value);
 			aml_length = (u16)(aml_length + item_count);
 			acpi_rs_set_resource_length(aml_length, aml);
 			break;
@@ -707,10 +710,12 @@ acpi_rs_convert_resource_to_aml(struct acpi_resource *resource,
 			/*
 			 * 8-bit encoded bitmask (DMA macro)
 			 */
-			ACPI_SET8(destination) = (u8)
-			    acpi_rs_encode_bitmask(source,
-						   *ACPI_ADD_PTR(u8, resource,
-								 info->value));
+			ACPI_SET8(destination,
+				  acpi_rs_encode_bitmask(source,
+							 *ACPI_ADD_PTR(u8,
+								       resource,
+								       info->
+								       value)));
 			break;
 
 		case ACPI_RSC_BITMASK16:
-- 
cgit v1.2.3


From fb4e50269c73a09dd89b40d6965bb9f1ee93dd1e Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Wed, 19 Dec 2012 05:38:31 +0000
Subject: ACPICA: Resource Manager: update template walking with
 ACPI_NEXT_RESOURCE.

Cleanup the ACPI_NEXT_RESOURCE macro.  Update AcpiWalkResources
to use ACPI_NEXT_RESOURCE.  Lv Zheng.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/rsxface.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/rsxface.c b/drivers/acpi/acpica/rsxface.c
index 5aad744b5b83..3a5ace7e5352 100644
--- a/drivers/acpi/acpica/rsxface.c
+++ b/drivers/acpi/acpica/rsxface.c
@@ -606,9 +606,7 @@ acpi_walk_resources(acpi_handle device_handle,
 
 		/* Get the next resource descriptor */
 
-		resource =
-		    ACPI_ADD_PTR(struct acpi_resource, resource,
-				 resource->length);
+		resource = ACPI_NEXT_RESOURCE(resource);
 	}
 
 	ACPI_FREE(buffer.pointer);
-- 
cgit v1.2.3


From ef0b67fe2db6aad8b604f9f09e1452f421a7b124 Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Wed, 19 Dec 2012 05:38:36 +0000
Subject: ACPICA: AcpiGetObjectInfo: optimize exit for mutex failure.

No need for a goto to the bottom of the function, simply return
the status code immediately.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/nsxfname.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/nsxfname.c b/drivers/acpi/acpica/nsxfname.c
index 520bab471dbf..a8deae82b24b 100644
--- a/drivers/acpi/acpica/nsxfname.c
+++ b/drivers/acpi/acpica/nsxfname.c
@@ -290,7 +290,7 @@ acpi_get_object_info(acpi_handle handle,
 
 	status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
 	if (ACPI_FAILURE(status)) {
-		goto cleanup;
+		return (status);
 	}
 
 	node = acpi_ns_validate_handle(handle);
-- 
cgit v1.2.3


From afb1bbee804f473f70dc890a94cb9f0acc358012 Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Mon, 31 Dec 2012 00:03:58 +0000
Subject: ACPICA: Resources: New interface, AcpiWalkResourceBuffer.

Implements a new interface for walking resource lists that it at
a lower level than the existing AcpiWalkResources.  (Method is
not executed.)

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/rsxface.c | 101 +++++++++++++++++++++++++++++-------------
 1 file changed, 70 insertions(+), 31 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/rsxface.c b/drivers/acpi/acpica/rsxface.c
index 3a5ace7e5352..a4086aabe865 100644
--- a/drivers/acpi/acpica/rsxface.c
+++ b/drivers/acpi/acpica/rsxface.c
@@ -423,7 +423,7 @@ ACPI_EXPORT_SYMBOL(acpi_resource_to_address64)
  *
  * RETURN:      Status
  *
- * DESCRIPTION: Walk a resource template for the specified evice to find a
+ * DESCRIPTION: Walk a resource template for the specified device to find a
  *              vendor-defined resource that matches the supplied UUID and
  *              UUID subtype. Returns a struct acpi_resource of type Vendor.
  *
@@ -522,57 +522,42 @@ acpi_rs_match_vendor_resource(struct acpi_resource *resource, void *context)
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_walk_resources
+ * FUNCTION:    acpi_walk_resource_buffer
  *
- * PARAMETERS:  device_handle   - Handle to the device object for the
- *                                device we are querying
- *              name            - Method name of the resources we want.
- *                                (METHOD_NAME__CRS, METHOD_NAME__PRS, or
- *                                METHOD_NAME__AEI)
+ * PARAMETERS:  buffer          - Formatted buffer returned by one of the
+ *                                various Get*Resource functions
  *              user_function   - Called for each resource
  *              context         - Passed to user_function
  *
  * RETURN:      Status
  *
- * DESCRIPTION: Retrieves the current or possible resource list for the
- *              specified device. The user_function is called once for
- *              each resource in the list.
+ * DESCRIPTION: Walks the input resource template. The user_function is called
+ *              once for each resource in the list.
  *
  ******************************************************************************/
+
 acpi_status
-acpi_walk_resources(acpi_handle device_handle,
-		    char *name,
-		    acpi_walk_resource_callback user_function, void *context)
+acpi_walk_resource_buffer(struct acpi_buffer * buffer,
+			  acpi_walk_resource_callback user_function,
+			  void *context)
 {
-	acpi_status status;
-	struct acpi_buffer buffer;
+	acpi_status status = AE_OK;
 	struct acpi_resource *resource;
 	struct acpi_resource *resource_end;
 
-	ACPI_FUNCTION_TRACE(acpi_walk_resources);
+	ACPI_FUNCTION_TRACE(acpi_walk_resource_buffer);
 
 	/* Parameter validation */
 
-	if (!device_handle || !user_function || !name ||
-	    (!ACPI_COMPARE_NAME(name, METHOD_NAME__CRS) &&
-	     !ACPI_COMPARE_NAME(name, METHOD_NAME__PRS) &&
-	     !ACPI_COMPARE_NAME(name, METHOD_NAME__AEI))) {
+	if (!buffer || !buffer->pointer || !user_function) {
 		return_ACPI_STATUS(AE_BAD_PARAMETER);
 	}
 
-	/* Get the _CRS/_PRS/_AEI resource list */
-
-	buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
-	status = acpi_rs_get_method_data(device_handle, name, &buffer);
-	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
-	}
-
-	/* Buffer now contains the resource list */
+	/* Buffer contains the resource list and length */
 
-	resource = ACPI_CAST_PTR(struct acpi_resource, buffer.pointer);
+	resource = ACPI_CAST_PTR(struct acpi_resource, buffer->pointer);
 	resource_end =
-	    ACPI_ADD_PTR(struct acpi_resource, buffer.pointer, buffer.length);
+	    ACPI_ADD_PTR(struct acpi_resource, buffer->pointer, buffer->length);
 
 	/* Walk the resource list until the end_tag is found (or buffer end) */
 
@@ -609,6 +594,60 @@ acpi_walk_resources(acpi_handle device_handle,
 		resource = ACPI_NEXT_RESOURCE(resource);
 	}
 
+	return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_walk_resource_buffer)
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_walk_resources
+ *
+ * PARAMETERS:  device_handle   - Handle to the device object for the
+ *                                device we are querying
+ *              name            - Method name of the resources we want.
+ *                                (METHOD_NAME__CRS, METHOD_NAME__PRS, or
+ *                                METHOD_NAME__AEI)
+ *              user_function   - Called for each resource
+ *              context         - Passed to user_function
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Retrieves the current or possible resource list for the
+ *              specified device. The user_function is called once for
+ *              each resource in the list.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_walk_resources(acpi_handle device_handle,
+		    char *name,
+		    acpi_walk_resource_callback user_function, void *context)
+{
+	acpi_status status;
+	struct acpi_buffer buffer;
+
+	ACPI_FUNCTION_TRACE(acpi_walk_resources);
+
+	/* Parameter validation */
+
+	if (!device_handle || !user_function || !name ||
+	    (!ACPI_COMPARE_NAME(name, METHOD_NAME__CRS) &&
+	     !ACPI_COMPARE_NAME(name, METHOD_NAME__PRS) &&
+	     !ACPI_COMPARE_NAME(name, METHOD_NAME__AEI))) {
+		return_ACPI_STATUS(AE_BAD_PARAMETER);
+	}
+
+	/* Get the _CRS/_PRS/_AEI resource list */
+
+	buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
+	status = acpi_rs_get_method_data(device_handle, name, &buffer);
+	if (ACPI_FAILURE(status)) {
+		return_ACPI_STATUS(status);
+	}
+
+	/* Walk the resource list and cleanup */
+
+	status = acpi_walk_resource_buffer(&buffer, user_function, context);
 	ACPI_FREE(buffer.pointer);
 	return_ACPI_STATUS(status);
 }
-- 
cgit v1.2.3


From 528a412c86e7a831d0fd157cac65749b45b64e06 Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Mon, 31 Dec 2012 00:05:09 +0000
Subject: ACPICA: Change exception code for LoadTable operator.

For the case where one of the input strings is too long,
change the returned exception code from AE_BAD_PARAMETER to
AE_AML_STRING_LIMIT.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/exconfig.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/exconfig.c b/drivers/acpi/acpica/exconfig.c
index d0cc2a40edfb..f214dbfc4047 100644
--- a/drivers/acpi/acpica/exconfig.c
+++ b/drivers/acpi/acpica/exconfig.c
@@ -48,6 +48,7 @@
 #include "actables.h"
 #include "acdispat.h"
 #include "acevents.h"
+#include "amlcode.h"
 
 #define _COMPONENT          ACPI_EXECUTER
 ACPI_MODULE_NAME("exconfig")
@@ -166,7 +167,7 @@ acpi_ex_load_table_op(struct acpi_walk_state *walk_state,
 	if ((operand[0]->string.length > ACPI_NAME_SIZE) ||
 	    (operand[1]->string.length > ACPI_OEM_ID_SIZE) ||
 	    (operand[2]->string.length > ACPI_OEM_TABLE_ID_SIZE)) {
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
+		return_ACPI_STATUS(AE_AML_STRING_LIMIT);
 	}
 
 	/* Find the ACPI table in the RSDT/XSDT */
@@ -213,8 +214,8 @@ acpi_ex_load_table_op(struct acpi_walk_state *walk_state,
 	/* parameter_path (optional parameter) */
 
 	if (operand[4]->string.length > 0) {
-		if ((operand[4]->string.pointer[0] != '\\') &&
-		    (operand[4]->string.pointer[0] != '^')) {
+		if ((operand[4]->string.pointer[0] != AML_ROOT_PREFIX) &&
+		    (operand[4]->string.pointer[0] != AML_PARENT_PREFIX)) {
 			/*
 			 * Path is not absolute, so it will be relative to the node
 			 * referenced by the root_path_string (or the NS root if omitted)
-- 
cgit v1.2.3


From 04a81dce13c672757637b759039de216ed29a536 Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Mon, 31 Dec 2012 00:05:17 +0000
Subject: ACPICA: Eliminate some small unnecessary pathname functions.

Removed several small pathname functions to increase efficiency.
Essentially, they replace a function call with a single compare.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/acmacros.h |  6 +++++
 drivers/acpi/acpica/acnamesp.h |  2 --
 drivers/acpi/acpica/acparser.h |  2 --
 drivers/acpi/acpica/nsutils.c  | 60 ++++++++----------------------------------
 drivers/acpi/acpica/nsxfeval.c |  2 +-
 drivers/acpi/acpica/nsxfname.c |  2 +-
 drivers/acpi/acpica/psargs.c   |  5 ++--
 drivers/acpi/acpica/psutils.c  |  8 ------
 8 files changed, 22 insertions(+), 65 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/acmacros.h b/drivers/acpi/acpica/acmacros.h
index 3ba11d23cba0..edfcbc8909ca 100644
--- a/drivers/acpi/acpica/acmacros.h
+++ b/drivers/acpi/acpica/acmacros.h
@@ -311,6 +311,12 @@
 #define ACPI_EXTRACT_3BIT_FLAG(field, position)     (ACPI_GET_3BIT_FLAG ((field) >> position))
 #define ACPI_EXTRACT_4BIT_FLAG(field, position)     (ACPI_GET_4BIT_FLAG ((field) >> position))
 
+/* ACPI Pathname helpers */
+
+#define ACPI_IS_ROOT_PREFIX(c)      ((c) == (u8) 0x5C)	/* Backslash */
+#define ACPI_IS_PARENT_PREFIX(c)    ((c) == (u8) 0x5E)	/* Carat */
+#define ACPI_IS_PATH_SEPARATOR(c)   ((c) == (u8) 0x2E)	/* Period (dot) */
+
 /*
  * An object of type struct acpi_namespace_node can appear in some contexts
  * where a pointer to an object of type union acpi_operand_object can also
diff --git a/drivers/acpi/acpica/acnamesp.h b/drivers/acpi/acpica/acnamesp.h
index 9b19d4b86424..b826d9c7aa73 100644
--- a/drivers/acpi/acpica/acnamesp.h
+++ b/drivers/acpi/acpica/acnamesp.h
@@ -333,8 +333,6 @@ acpi_ns_install_node(struct acpi_walk_state *walk_state,
 /*
  * nsutils - Utility functions
  */
-u8 acpi_ns_valid_root_prefix(char prefix);
-
 acpi_object_type acpi_ns_get_type(struct acpi_namespace_node *node);
 
 u32 acpi_ns_local(acpi_object_type type);
diff --git a/drivers/acpi/acpica/acparser.h b/drivers/acpi/acpica/acparser.h
index eefcf47a61a0..24a59056eee1 100644
--- a/drivers/acpi/acpica/acparser.h
+++ b/drivers/acpi/acpica/acparser.h
@@ -211,8 +211,6 @@ void acpi_ps_free_op(union acpi_parse_object *op);
 
 u8 acpi_ps_is_leading_char(u32 c);
 
-u8 acpi_ps_is_prefix_char(u32 c);
-
 #ifdef	ACPI_FUTURE_USAGE
 u32 acpi_ps_get_name(union acpi_parse_object *op);
 #endif				/* ACPI_FUTURE_USAGE */
diff --git a/drivers/acpi/acpica/nsutils.c b/drivers/acpi/acpica/nsutils.c
index 4479654760ac..d2dfe6172181 100644
--- a/drivers/acpi/acpica/nsutils.c
+++ b/drivers/acpi/acpica/nsutils.c
@@ -51,8 +51,6 @@
 ACPI_MODULE_NAME("nsutils")
 
 /* Local prototypes */
-static u8 acpi_ns_valid_path_separator(char sep);
-
 #ifdef ACPI_OBSOLETE_FUNCTIONS
 acpi_name acpi_ns_find_parent_name(struct acpi_namespace_node *node_to_search);
 #endif
@@ -96,42 +94,6 @@ acpi_ns_print_node_pathname(struct acpi_namespace_node *node,
 	}
 }
 
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ns_valid_root_prefix
- *
- * PARAMETERS:  prefix          - Character to be checked
- *
- * RETURN:      TRUE if a valid prefix
- *
- * DESCRIPTION: Check if a character is a valid ACPI Root prefix
- *
- ******************************************************************************/
-
-u8 acpi_ns_valid_root_prefix(char prefix)
-{
-
-	return ((u8)(prefix == '\\'));
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ns_valid_path_separator
- *
- * PARAMETERS:  sep         - Character to be checked
- *
- * RETURN:      TRUE if a valid path separator
- *
- * DESCRIPTION: Check if a character is a valid ACPI path separator
- *
- ******************************************************************************/
-
-static u8 acpi_ns_valid_path_separator(char sep)
-{
-
-	return ((u8)(sep == '.'));
-}
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ns_get_type
@@ -217,19 +179,19 @@ void acpi_ns_get_internal_name_length(struct acpi_namestring_info *info)
 	 *
 	 * strlen() + 1 covers the first name_seg, which has no path separator
 	 */
-	if (acpi_ns_valid_root_prefix(*next_external_char)) {
+	if (ACPI_IS_ROOT_PREFIX(*next_external_char)) {
 		info->fully_qualified = TRUE;
 		next_external_char++;
 
 		/* Skip redundant root_prefix, like \\_SB.PCI0.SBRG.EC0 */
 
-		while (acpi_ns_valid_root_prefix(*next_external_char)) {
+		while (ACPI_IS_ROOT_PREFIX(*next_external_char)) {
 			next_external_char++;
 		}
 	} else {
 		/* Handle Carat prefixes */
 
-		while (*next_external_char == '^') {
+		while (ACPI_IS_PARENT_PREFIX(*next_external_char)) {
 			info->num_carats++;
 			next_external_char++;
 		}
@@ -243,7 +205,7 @@ void acpi_ns_get_internal_name_length(struct acpi_namestring_info *info)
 	if (*next_external_char) {
 		info->num_segments = 1;
 		for (i = 0; next_external_char[i]; i++) {
-			if (acpi_ns_valid_path_separator(next_external_char[i])) {
+			if (ACPI_IS_PATH_SEPARATOR(next_external_char[i])) {
 				info->num_segments++;
 			}
 		}
@@ -281,7 +243,7 @@ acpi_status acpi_ns_build_internal_name(struct acpi_namestring_info *info)
 	/* Setup the correct prefixes, counts, and pointers */
 
 	if (info->fully_qualified) {
-		internal_name[0] = '\\';
+		internal_name[0] = AML_ROOT_PREFIX;
 
 		if (num_segments <= 1) {
 			result = &internal_name[1];
@@ -301,7 +263,7 @@ acpi_status acpi_ns_build_internal_name(struct acpi_namestring_info *info)
 		i = 0;
 		if (info->num_carats) {
 			for (i = 0; i < info->num_carats; i++) {
-				internal_name[i] = '^';
+				internal_name[i] = AML_PARENT_PREFIX;
 			}
 		}
 
@@ -321,7 +283,7 @@ acpi_status acpi_ns_build_internal_name(struct acpi_namestring_info *info)
 
 	for (; num_segments; num_segments--) {
 		for (i = 0; i < ACPI_NAME_SIZE; i++) {
-			if (acpi_ns_valid_path_separator(*external_name) ||
+			if (ACPI_IS_PATH_SEPARATOR(*external_name) ||
 			    (*external_name == 0)) {
 
 				/* Pad the segment with underscore(s) if segment is short */
@@ -338,7 +300,7 @@ acpi_status acpi_ns_build_internal_name(struct acpi_namestring_info *info)
 
 		/* Now we must have a path separator, or the pathname is bad */
 
-		if (!acpi_ns_valid_path_separator(*external_name) &&
+		if (!ACPI_IS_PATH_SEPARATOR(*external_name) &&
 		    (*external_name != 0)) {
 			return_ACPI_STATUS(AE_BAD_PATHNAME);
 		}
@@ -456,13 +418,13 @@ acpi_ns_externalize_name(u32 internal_name_length,
 	/* Check for a prefix (one '\' | one or more '^') */
 
 	switch (internal_name[0]) {
-	case '\\':
+	case AML_ROOT_PREFIX:
 		prefix_length = 1;
 		break;
 
-	case '^':
+	case AML_PARENT_PREFIX:
 		for (i = 0; i < internal_name_length; i++) {
-			if (internal_name[i] == '^') {
+			if (ACPI_IS_PARENT_PREFIX(internal_name[i])) {
 				prefix_length = i + 1;
 			} else {
 				break;
diff --git a/drivers/acpi/acpica/nsxfeval.c b/drivers/acpi/acpica/nsxfeval.c
index ef29925d1620..1070eeefcbce 100644
--- a/drivers/acpi/acpica/nsxfeval.c
+++ b/drivers/acpi/acpica/nsxfeval.c
@@ -236,7 +236,7 @@ acpi_evaluate_object(acpi_handle handle,
 	 * 2) No handle, not fully qualified pathname (error)
 	 * 3) Valid handle
 	 */
-	if ((pathname) && (acpi_ns_valid_root_prefix(pathname[0]))) {
+	if ((pathname) && (ACPI_IS_ROOT_PREFIX(pathname[0]))) {
 
 		/* The path is fully qualified, just evaluate by name */
 
diff --git a/drivers/acpi/acpica/nsxfname.c b/drivers/acpi/acpica/nsxfname.c
index a8deae82b24b..1664fad5e303 100644
--- a/drivers/acpi/acpica/nsxfname.c
+++ b/drivers/acpi/acpica/nsxfname.c
@@ -107,7 +107,7 @@ acpi_get_handle(acpi_handle parent,
 	 *
 	 * Error for <null Parent + relative path>
 	 */
-	if (acpi_ns_valid_root_prefix(pathname[0])) {
+	if (ACPI_IS_ROOT_PREFIX(pathname[0])) {
 
 		/* Pathname is fully qualified (starts with '\') */
 
diff --git a/drivers/acpi/acpica/psargs.c b/drivers/acpi/acpica/psargs.c
index cb79e2d4d743..9f3189395f3a 100644
--- a/drivers/acpi/acpica/psargs.c
+++ b/drivers/acpi/acpica/psargs.c
@@ -162,7 +162,7 @@ char *acpi_ps_get_next_namestring(struct acpi_parse_state *parser_state)
 
 	/* Point past any namestring prefix characters (backslash or carat) */
 
-	while (acpi_ps_is_prefix_char(*end)) {
+	while (ACPI_IS_ROOT_PREFIX(*end) || ACPI_IS_PARENT_PREFIX(*end)) {
 		end++;
 	}
 
@@ -798,7 +798,8 @@ acpi_ps_get_next_arg(struct acpi_walk_state *walk_state,
 		subop = acpi_ps_peek_opcode(parser_state);
 		if (subop == 0 ||
 		    acpi_ps_is_leading_char(subop) ||
-		    acpi_ps_is_prefix_char(subop)) {
+		    ACPI_IS_ROOT_PREFIX(subop) ||
+		    ACPI_IS_PARENT_PREFIX(subop)) {
 
 			/* null_name or name_string */
 
diff --git a/drivers/acpi/acpica/psutils.c b/drivers/acpi/acpica/psutils.c
index afefb3a1b577..2bbf670b34f9 100644
--- a/drivers/acpi/acpica/psutils.c
+++ b/drivers/acpi/acpica/psutils.c
@@ -201,14 +201,6 @@ u8 acpi_ps_is_leading_char(u32 c)
 	return ((u8) (c == '_' || (c >= 'A' && c <= 'Z')));
 }
 
-/*
- * Is "c" a namestring prefix character?
- */
-u8 acpi_ps_is_prefix_char(u32 c)
-{
-	return ((u8)(c == '\\' || c == '^'));
-}
-
 /*
  * Get op's name (4-byte name segment) or 0 if unnamed
  */
-- 
cgit v1.2.3


From f8c9bfe461bb2923ae5d070f1ec0fb312825caad Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Mon, 31 Dec 2012 00:05:33 +0000
Subject: ACPICA: Add root node optimization to internal get namespace node
 function.

Detect a request for the root node (a lone backslash) up front
before invoking a full namespace lookup.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/nsutils.c | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/nsutils.c b/drivers/acpi/acpica/nsutils.c
index d2dfe6172181..596d4ccc963f 100644
--- a/drivers/acpi/acpica/nsutils.c
+++ b/drivers/acpi/acpica/nsutils.c
@@ -671,6 +671,8 @@ acpi_ns_get_node(struct acpi_namespace_node *prefix_node,
 
 	ACPI_FUNCTION_TRACE_PTR(ns_get_node, ACPI_CAST_PTR(char, pathname));
 
+	/* Simplest case is a null pathname */
+
 	if (!pathname) {
 		*return_node = prefix_node;
 		if (!prefix_node) {
@@ -679,6 +681,13 @@ acpi_ns_get_node(struct acpi_namespace_node *prefix_node,
 		return_ACPI_STATUS(AE_OK);
 	}
 
+	/* Quick check for a reference to the root */
+
+	if (ACPI_IS_ROOT_PREFIX(pathname[0]) && (!pathname[1])) {
+		*return_node = acpi_gbl_root_node;
+		return_ACPI_STATUS(AE_OK);
+	}
+
 	/* Convert path to internal representation */
 
 	status = acpi_ns_internalize_name(pathname, &internal_path);
-- 
cgit v1.2.3


From c8d586f8ed0146d81186131df66cdbb19c41acda Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Mon, 31 Dec 2012 00:05:39 +0000
Subject: ACPICA: Lint changes, no functional change.

Some changes from lint.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/psloop.c   | 9 +++++----
 drivers/acpi/acpica/utdelete.c | 2 +-
 2 files changed, 6 insertions(+), 5 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/psloop.c b/drivers/acpi/acpica/psloop.c
index 5607805aab26..a6f8592c9ae5 100644
--- a/drivers/acpi/acpica/psloop.c
+++ b/drivers/acpi/acpica/psloop.c
@@ -142,7 +142,8 @@ static acpi_status acpi_ps_get_aml_opcode(struct acpi_walk_state *walk_state)
 				    (u32)(walk_state->aml_offset +
 					  sizeof(struct acpi_table_header))));
 
-			ACPI_DUMP_BUFFER(walk_state->parser_state.aml - 16, 48);
+			ACPI_DUMP_BUFFER((walk_state->parser_state.aml - 16),
+					 48);
 
 #ifdef ACPI_ASL_COMPILER
 			/*
@@ -159,9 +160,9 @@ static acpi_status acpi_ps_get_aml_opcode(struct acpi_walk_state *walk_state)
 
 			acpi_ut_dump_buffer(((u8 *)walk_state->parser_state.
 					     aml - 16), 48, DB_BYTE_DISPLAY,
-					    walk_state->aml_offset +
-					    sizeof(struct acpi_table_header) -
-					    16);
+					    (walk_state->aml_offset +
+					     sizeof(struct acpi_table_header) -
+					     16));
 			acpi_os_printf(" */\n");
 #endif
 		}
diff --git a/drivers/acpi/acpica/utdelete.c b/drivers/acpi/acpica/utdelete.c
index 53e6af801661..c8bf44f522dd 100644
--- a/drivers/acpi/acpica/utdelete.c
+++ b/drivers/acpi/acpica/utdelete.c
@@ -340,7 +340,7 @@ void acpi_ut_delete_internal_object_list(union acpi_operand_object **obj_list)
 {
 	union acpi_operand_object **internal_obj;
 
-	ACPI_FUNCTION_NAME(ut_delete_internal_object_list);
+	ACPI_FUNCTION_ENTRY();
 
 	/* Walk the null-terminated internal list */
 
-- 
cgit v1.2.3


From c41679a4481d5bf9908d99644d47b2e8ff6f028f Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Mon, 31 Dec 2012 00:05:46 +0000
Subject: ACPICA: Add time macros for various timer/time manipulation.

Constants for time manipulation, including constants for the 100
nanosecond timers. Chao Guan, Bob Moore, Lv Zheng.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/hwsleep.c   | 2 +-
 drivers/acpi/acpica/hwtimer.c   | 7 ++++---
 drivers/acpi/acpica/hwxfsleep.c | 2 +-
 3 files changed, 6 insertions(+), 5 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/hwsleep.c b/drivers/acpi/acpica/hwsleep.c
index 691a5fb10d4d..675a8f865063 100644
--- a/drivers/acpi/acpica/hwsleep.c
+++ b/drivers/acpi/acpica/hwsleep.c
@@ -177,7 +177,7 @@ acpi_status acpi_hw_legacy_sleep(u8 sleep_state)
 		 * to still read the right value. Ideally, this block would go
 		 * away entirely.
 		 */
-		acpi_os_stall(10000000);
+		acpi_os_stall(10 * ACPI_USEC_PER_SEC);
 
 		status = acpi_hw_register_write(ACPI_REGISTER_PM1_CONTROL,
 						sleep_enable_reg_info->
diff --git a/drivers/acpi/acpica/hwtimer.c b/drivers/acpi/acpica/hwtimer.c
index bfdce22f3798..4e741d85e6b4 100644
--- a/drivers/acpi/acpica/hwtimer.c
+++ b/drivers/acpi/acpica/hwtimer.c
@@ -176,10 +176,11 @@ acpi_get_timer_duration(u32 start_ticks, u32 end_ticks, u32 * time_elapsed)
 	/*
 	 * Compute Duration (Requires a 64-bit multiply and divide):
 	 *
-	 * time_elapsed = (delta_ticks * 1000000) / PM_TIMER_FREQUENCY;
+	 * time_elapsed (microseconds) =
+	 *  (delta_ticks * ACPI_USEC_PER_SEC) / ACPI_PM_TIMER_FREQUENCY;
 	 */
-	status = acpi_ut_short_divide(((u64) delta_ticks) * 1000000,
-				      PM_TIMER_FREQUENCY, &quotient, NULL);
+	status = acpi_ut_short_divide(((u64)delta_ticks) * ACPI_USEC_PER_SEC,
+				      ACPI_PM_TIMER_FREQUENCY, &quotient, NULL);
 
 	*time_elapsed = (u32) quotient;
 	return_ACPI_STATUS(status);
diff --git a/drivers/acpi/acpica/hwxfsleep.c b/drivers/acpi/acpica/hwxfsleep.c
index 6fcee00cb34b..ca4df0f1a621 100644
--- a/drivers/acpi/acpica/hwxfsleep.c
+++ b/drivers/acpi/acpica/hwxfsleep.c
@@ -207,7 +207,7 @@ acpi_status asmlinkage acpi_enter_sleep_state_s4bios(void)
 				    (u32)acpi_gbl_FADT.s4_bios_request, 8);
 
 	do {
-		acpi_os_stall(1000);
+		acpi_os_stall(ACPI_USEC_PER_MSEC);
 		status =
 		    acpi_read_bit_register(ACPI_BITREG_WAKE_STATUS, &in_value);
 		if (ACPI_FAILURE(status)) {
-- 
cgit v1.2.3


From 0fdce47677be8d86408d2beef6fda3dc4c7edf56 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Mon, 31 Dec 2012 00:05:58 +0000
Subject: ACPICA: Resource Manager: Add a pointer cast for a namespace node.

Add a missing cast for a namespace node pointer passed in from
an external interface. Reported Rafael Wysocki.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/rsutils.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/rsutils.c b/drivers/acpi/acpica/rsutils.c
index 5adae5a036aa..41b8103911fc 100644
--- a/drivers/acpi/acpica/rsutils.c
+++ b/drivers/acpi/acpica/rsutils.c
@@ -677,7 +677,9 @@ acpi_rs_get_method_data(acpi_handle handle,
 	/* Execute the method, no parameters */
 
 	status =
-	    acpi_ut_evaluate_object(handle, path, ACPI_BTYPE_BUFFER, &obj_desc);
+	    acpi_ut_evaluate_object(ACPI_CAST_PTR
+				    (struct acpi_namespace_node, handle), path,
+				    ACPI_BTYPE_BUFFER, &obj_desc);
 	if (ACPI_FAILURE(status)) {
 		return_ACPI_STATUS(status);
 	}
-- 
cgit v1.2.3


From ad5a06f2969763059bb26399fa97569385074e01 Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Mon, 31 Dec 2012 00:06:04 +0000
Subject: ACPICA: DEBUG_PRINT macros: Update to improve performance.

Move check for "debug enable" to before the actual call to the
debug print routine. Improves time of ASLTS by about 15%.  Also,
remove "safe" exit macros since no complex expressions are ever
used in the return statements.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/acmacros.h | 132 +++++++++++++++++++++--------------------
 1 file changed, 67 insertions(+), 65 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/acmacros.h b/drivers/acpi/acpica/acmacros.h
index edfcbc8909ca..cd96135c96b4 100644
--- a/drivers/acpi/acpica/acmacros.h
+++ b/drivers/acpi/acpica/acmacros.h
@@ -392,29 +392,51 @@
  * Debug macros that are conditionally compiled
  */
 #ifdef ACPI_DEBUG_OUTPUT
+
 /*
  * Function entry tracing
+ *
+ * The name of the function is emitted as a local variable that is
+ * intended to be used by both the entry trace and the exit trace.
  */
-#define ACPI_FUNCTION_TRACE(a)          ACPI_FUNCTION_NAME(a) \
-			  acpi_ut_trace(ACPI_DEBUG_PARAMETERS)
-#define ACPI_FUNCTION_TRACE_PTR(a, b)   ACPI_FUNCTION_NAME(a) \
-					   acpi_ut_trace_ptr(ACPI_DEBUG_PARAMETERS, (void *)b)
-#define ACPI_FUNCTION_TRACE_U32(a, b)   ACPI_FUNCTION_NAME(a) \
-							 acpi_ut_trace_u32(ACPI_DEBUG_PARAMETERS, (u32)b)
-#define ACPI_FUNCTION_TRACE_STR(a, b)   ACPI_FUNCTION_NAME(a) \
-									  acpi_ut_trace_str(ACPI_DEBUG_PARAMETERS, (char *)b)
 
-#define ACPI_FUNCTION_ENTRY()           acpi_ut_track_stack_ptr()
+/* Helper macro */
+
+#define ACPI_TRACE_ENTRY(name, function, cast, param) \
+	ACPI_FUNCTION_NAME (name) \
+	function (ACPI_DEBUG_PARAMETERS, cast (param))
+
+/* The actual entry trace macros */
+
+#define ACPI_FUNCTION_TRACE(name) \
+	ACPI_FUNCTION_NAME(name) \
+	acpi_ut_trace (ACPI_DEBUG_PARAMETERS)
+
+#define ACPI_FUNCTION_TRACE_PTR(name, pointer) \
+	ACPI_TRACE_ENTRY (name, acpi_ut_trace_ptr, (void *), pointer)
+
+#define ACPI_FUNCTION_TRACE_U32(name, value) \
+	ACPI_TRACE_ENTRY (name, acpi_ut_trace_u32, (u32), value)
+
+#define ACPI_FUNCTION_TRACE_STR(name, string) \
+	ACPI_TRACE_ENTRY (name, acpi_ut_trace_str, (char *), string)
+
+#define ACPI_FUNCTION_ENTRY() \
+	acpi_ut_track_stack_ptr()
 
 /*
- * Function exit tracing.
- * WARNING: These macros include a return statement. This is usually considered
- * bad form, but having a separate exit macro is very ugly and difficult to maintain.
- * One of the FUNCTION_TRACE macros above must be used in conjunction with these macros
- * so that "_AcpiFunctionName" is defined.
+ * Function exit tracing
+ *
+ * These macros include a return statement. This is usually considered
+ * bad form, but having a separate exit macro before the actual return
+ * is very ugly and difficult to maintain.
+ *
+ * One of the FUNCTION_TRACE macros above must be used in conjunction
+ * with these macros so that "_AcpiFunctionName" is defined.
  *
- * Note: the DO_WHILE0 macro is used to prevent some compilers from complaining
- * about these constructs.
+ * Note: the DO_WHILE0 macro is used to prevent some compilers from
+ * complaining about these constructs. On other compilers the do...while
+ * adds some extra code, so this feature is optional.
  */
 #ifdef ACPI_USE_DO_WHILE_0
 #define ACPI_DO_WHILE0(a)               do a while(0)
@@ -422,55 +444,35 @@
 #define ACPI_DO_WHILE0(a)               a
 #endif
 
-#define return_VOID                     ACPI_DO_WHILE0 ({ \
-											acpi_ut_exit (ACPI_DEBUG_PARAMETERS); \
-											return;})
-/*
- * There are two versions of most of the return macros. The default version is
- * safer, since it avoids side-effects by guaranteeing that the argument will
- * not be evaluated twice.
- *
- * A less-safe version of the macros is provided for optional use if the
- * compiler uses excessive CPU stack (for example, this may happen in the
- * debug case if code optimzation is disabled.)
- */
-#ifndef ACPI_SIMPLE_RETURN_MACROS
-
-#define return_ACPI_STATUS(s)           ACPI_DO_WHILE0 ({ \
-											register acpi_status _s = (s); \
-											acpi_ut_status_exit (ACPI_DEBUG_PARAMETERS, _s); \
-											return (_s); })
-#define return_PTR(s)                   ACPI_DO_WHILE0 ({ \
-											register void *_s = (void *) (s); \
-											acpi_ut_ptr_exit (ACPI_DEBUG_PARAMETERS, (u8 *) _s); \
-											return (_s); })
-#define return_VALUE(s)                 ACPI_DO_WHILE0 ({ \
-											register u64 _s = (s); \
-											acpi_ut_value_exit (ACPI_DEBUG_PARAMETERS, _s); \
-											return (_s); })
-#define return_UINT8(s)                 ACPI_DO_WHILE0 ({ \
-											register u8 _s = (u8) (s); \
-											acpi_ut_value_exit (ACPI_DEBUG_PARAMETERS, (u64) _s); \
-											return (_s); })
-#define return_UINT32(s)                ACPI_DO_WHILE0 ({ \
-											register u32 _s = (u32) (s); \
-											acpi_ut_value_exit (ACPI_DEBUG_PARAMETERS, (u64) _s); \
-											return (_s); })
-#else				/* Use original less-safe macros */
-
-#define return_ACPI_STATUS(s)           ACPI_DO_WHILE0 ({ \
-											acpi_ut_status_exit (ACPI_DEBUG_PARAMETERS, (s)); \
-											return((s)); })
-#define return_PTR(s)                   ACPI_DO_WHILE0 ({ \
-											acpi_ut_ptr_exit (ACPI_DEBUG_PARAMETERS, (u8 *) (s)); \
-											return((s)); })
-#define return_VALUE(s)                 ACPI_DO_WHILE0 ({ \
-											acpi_ut_value_exit (ACPI_DEBUG_PARAMETERS, (u64) (s)); \
-											return((s)); })
-#define return_UINT8(s)                 return_VALUE(s)
-#define return_UINT32(s)                return_VALUE(s)
-
-#endif				/* ACPI_SIMPLE_RETURN_MACROS */
+/* Exit trace helper macro */
+
+#define ACPI_TRACE_EXIT(function, cast, param) \
+	ACPI_DO_WHILE0 ({ \
+		function (ACPI_DEBUG_PARAMETERS, cast (param)); \
+		return ((param)); \
+	})
+
+/* The actual exit macros */
+
+#define return_VOID \
+	ACPI_DO_WHILE0 ({ \
+		acpi_ut_exit (ACPI_DEBUG_PARAMETERS); \
+		return; \
+	})
+
+#define return_ACPI_STATUS(status) \
+	ACPI_TRACE_EXIT (acpi_ut_status_exit, (acpi_status), status)
+
+#define return_PTR(pointer) \
+	ACPI_TRACE_EXIT (acpi_ut_ptr_exit, (u8 *), pointer)
+
+#define return_VALUE(value) \
+	ACPI_TRACE_EXIT (acpi_ut_value_exit, (u64), value)
+
+/* These exit macros are superfluous and should be removed entirely */
+
+#define return_UINT8        return_VALUE
+#define return_UINT32       return_VALUE
 
 /* Conditional execution */
 
-- 
cgit v1.2.3


From db38bf5a57a955975986b514c6bbd7cb324fddc3 Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Mon, 31 Dec 2012 00:06:10 +0000
Subject: ACPICA: FUNCTION_TRACE macros: Check if debug is enabled up-front.

In the functions that implement the macros, check if debug
is enabled up-front before the call to the lower debug print
function. This provides a small performance improvement.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/utdebug.c | 118 ++++++++++++++++++++++++++++--------------
 1 file changed, 78 insertions(+), 40 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/utdebug.c b/drivers/acpi/acpica/utdebug.c
index 5d95166245ae..47857c41906c 100644
--- a/drivers/acpi/acpica/utdebug.c
+++ b/drivers/acpi/acpica/utdebug.c
@@ -166,11 +166,9 @@ acpi_debug_print(u32 requested_debug_level,
 	acpi_thread_id thread_id;
 	va_list args;
 
-	/*
-	 * Stay silent if the debug level or component ID is disabled
-	 */
-	if (!(requested_debug_level & acpi_dbg_level) ||
-	    !(component_id & acpi_dbg_layer)) {
+	/* Check if debug output enabled */
+
+	if (!ACPI_IS_DEBUG_ENABLED(requested_debug_level, component_id)) {
 		return;
 	}
 
@@ -236,8 +234,9 @@ acpi_debug_print_raw(u32 requested_debug_level,
 {
 	va_list args;
 
-	if (!(requested_debug_level & acpi_dbg_level) ||
-	    !(component_id & acpi_dbg_layer)) {
+	/* Check if debug output enabled */
+
+	if (!ACPI_IS_DEBUG_ENABLED(requested_debug_level, component_id)) {
 		return;
 	}
 
@@ -272,9 +271,13 @@ acpi_ut_trace(u32 line_number,
 	acpi_gbl_nesting_level++;
 	acpi_ut_track_stack_ptr();
 
-	acpi_debug_print(ACPI_LV_FUNCTIONS,
-			 line_number, function_name, module_name, component_id,
-			 "%s\n", acpi_gbl_fn_entry_str);
+	/* Check if enabled up-front for performance */
+
+	if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
+		acpi_debug_print(ACPI_LV_FUNCTIONS,
+				 line_number, function_name, module_name,
+				 component_id, "%s\n", acpi_gbl_fn_entry_str);
+	}
 }
 
 ACPI_EXPORT_SYMBOL(acpi_ut_trace)
@@ -304,9 +307,14 @@ acpi_ut_trace_ptr(u32 line_number,
 	acpi_gbl_nesting_level++;
 	acpi_ut_track_stack_ptr();
 
-	acpi_debug_print(ACPI_LV_FUNCTIONS,
-			 line_number, function_name, module_name, component_id,
-			 "%s %p\n", acpi_gbl_fn_entry_str, pointer);
+	/* Check if enabled up-front for performance */
+
+	if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
+		acpi_debug_print(ACPI_LV_FUNCTIONS,
+				 line_number, function_name, module_name,
+				 component_id, "%s %p\n", acpi_gbl_fn_entry_str,
+				 pointer);
+	}
 }
 
 /*******************************************************************************
@@ -335,9 +343,14 @@ acpi_ut_trace_str(u32 line_number,
 	acpi_gbl_nesting_level++;
 	acpi_ut_track_stack_ptr();
 
-	acpi_debug_print(ACPI_LV_FUNCTIONS,
-			 line_number, function_name, module_name, component_id,
-			 "%s %s\n", acpi_gbl_fn_entry_str, string);
+	/* Check if enabled up-front for performance */
+
+	if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
+		acpi_debug_print(ACPI_LV_FUNCTIONS,
+				 line_number, function_name, module_name,
+				 component_id, "%s %s\n", acpi_gbl_fn_entry_str,
+				 string);
+	}
 }
 
 /*******************************************************************************
@@ -366,9 +379,14 @@ acpi_ut_trace_u32(u32 line_number,
 	acpi_gbl_nesting_level++;
 	acpi_ut_track_stack_ptr();
 
-	acpi_debug_print(ACPI_LV_FUNCTIONS,
-			 line_number, function_name, module_name, component_id,
-			 "%s %08X\n", acpi_gbl_fn_entry_str, integer);
+	/* Check if enabled up-front for performance */
+
+	if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
+		acpi_debug_print(ACPI_LV_FUNCTIONS,
+				 line_number, function_name, module_name,
+				 component_id, "%s %08X\n",
+				 acpi_gbl_fn_entry_str, integer);
+	}
 }
 
 /*******************************************************************************
@@ -393,9 +411,13 @@ acpi_ut_exit(u32 line_number,
 	     const char *module_name, u32 component_id)
 {
 
-	acpi_debug_print(ACPI_LV_FUNCTIONS,
-			 line_number, function_name, module_name, component_id,
-			 "%s\n", acpi_gbl_fn_exit_str);
+	/* Check if enabled up-front for performance */
+
+	if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
+		acpi_debug_print(ACPI_LV_FUNCTIONS,
+				 line_number, function_name, module_name,
+				 component_id, "%s\n", acpi_gbl_fn_exit_str);
+	}
 
 	acpi_gbl_nesting_level--;
 }
@@ -425,17 +447,23 @@ acpi_ut_status_exit(u32 line_number,
 		    u32 component_id, acpi_status status)
 {
 
-	if (ACPI_SUCCESS(status)) {
-		acpi_debug_print(ACPI_LV_FUNCTIONS,
-				 line_number, function_name, module_name,
-				 component_id, "%s %s\n", acpi_gbl_fn_exit_str,
-				 acpi_format_exception(status));
-	} else {
-		acpi_debug_print(ACPI_LV_FUNCTIONS,
-				 line_number, function_name, module_name,
-				 component_id, "%s ****Exception****: %s\n",
-				 acpi_gbl_fn_exit_str,
-				 acpi_format_exception(status));
+	/* Check if enabled up-front for performance */
+
+	if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
+		if (ACPI_SUCCESS(status)) {
+			acpi_debug_print(ACPI_LV_FUNCTIONS,
+					 line_number, function_name,
+					 module_name, component_id, "%s %s\n",
+					 acpi_gbl_fn_exit_str,
+					 acpi_format_exception(status));
+		} else {
+			acpi_debug_print(ACPI_LV_FUNCTIONS,
+					 line_number, function_name,
+					 module_name, component_id,
+					 "%s ****Exception****: %s\n",
+					 acpi_gbl_fn_exit_str,
+					 acpi_format_exception(status));
+		}
 	}
 
 	acpi_gbl_nesting_level--;
@@ -465,10 +493,15 @@ acpi_ut_value_exit(u32 line_number,
 		   const char *module_name, u32 component_id, u64 value)
 {
 
-	acpi_debug_print(ACPI_LV_FUNCTIONS,
-			 line_number, function_name, module_name, component_id,
-			 "%s %8.8X%8.8X\n", acpi_gbl_fn_exit_str,
-			 ACPI_FORMAT_UINT64(value));
+	/* Check if enabled up-front for performance */
+
+	if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
+		acpi_debug_print(ACPI_LV_FUNCTIONS,
+				 line_number, function_name, module_name,
+				 component_id, "%s %8.8X%8.8X\n",
+				 acpi_gbl_fn_exit_str,
+				 ACPI_FORMAT_UINT64(value));
+	}
 
 	acpi_gbl_nesting_level--;
 }
@@ -497,9 +530,14 @@ acpi_ut_ptr_exit(u32 line_number,
 		 const char *module_name, u32 component_id, u8 *ptr)
 {
 
-	acpi_debug_print(ACPI_LV_FUNCTIONS,
-			 line_number, function_name, module_name, component_id,
-			 "%s %p\n", acpi_gbl_fn_exit_str, ptr);
+	/* Check if enabled up-front for performance */
+
+	if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
+		acpi_debug_print(ACPI_LV_FUNCTIONS,
+				 line_number, function_name, module_name,
+				 component_id, "%s %p\n", acpi_gbl_fn_exit_str,
+				 ptr);
+	}
 
 	acpi_gbl_nesting_level--;
 }
-- 
cgit v1.2.3


From 7b891693091166123307f6e3023533c8d1d46f99 Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Mon, 31 Dec 2012 00:06:16 +0000
Subject: ACPICA: Eliminate superfluous return_UINT8 and return_UINT32 macros.

These macros were implemented the same as return_VALUE and thus
they were not needed.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/acmacros.h  |  7 -------
 drivers/acpi/acpica/dsutils.c   | 10 +++++-----
 drivers/acpi/acpica/evgpe.c     |  6 +++---
 drivers/acpi/acpica/evsci.c     |  4 ++--
 drivers/acpi/acpica/exprep.c    |  4 ++--
 drivers/acpi/acpica/exutils.c   |  4 ++--
 drivers/acpi/acpica/hwacpi.c    |  8 ++++----
 drivers/acpi/acpica/nsutils.c   |  8 ++++----
 drivers/acpi/acpica/psargs.c    |  2 +-
 drivers/acpi/acpica/utaddress.c |  4 ++--
 10 files changed, 25 insertions(+), 32 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/acmacros.h b/drivers/acpi/acpica/acmacros.h
index cd96135c96b4..81f3cf7a4a59 100644
--- a/drivers/acpi/acpica/acmacros.h
+++ b/drivers/acpi/acpica/acmacros.h
@@ -469,11 +469,6 @@
 #define return_VALUE(value) \
 	ACPI_TRACE_EXIT (acpi_ut_value_exit, (u64), value)
 
-/* These exit macros are superfluous and should be removed entirely */
-
-#define return_UINT8        return_VALUE
-#define return_UINT32       return_VALUE
-
 /* Conditional execution */
 
 #define ACPI_DEBUG_EXEC(a)              a
@@ -515,8 +510,6 @@
 #define return_VOID                     return
 #define return_ACPI_STATUS(s)           return(s)
 #define return_VALUE(s)                 return(s)
-#define return_UINT8(s)                 return(s)
-#define return_UINT32(s)                return(s)
 #define return_PTR(s)                   return(s)
 
 #endif				/* ACPI_DEBUG_OUTPUT */
diff --git a/drivers/acpi/acpica/dsutils.c b/drivers/acpi/acpica/dsutils.c
index afeb99f49482..466f5f2e69ba 100644
--- a/drivers/acpi/acpica/dsutils.c
+++ b/drivers/acpi/acpica/dsutils.c
@@ -178,7 +178,7 @@ acpi_ds_is_result_used(union acpi_parse_object * op,
 
 	if (!op) {
 		ACPI_ERROR((AE_INFO, "Null Op"));
-		return_UINT8(TRUE);
+		return_VALUE(TRUE);
 	}
 
 	/*
@@ -210,7 +210,7 @@ acpi_ds_is_result_used(union acpi_parse_object * op,
 				  "At Method level, result of [%s] not used\n",
 				  acpi_ps_get_opcode_name(op->common.
 							  aml_opcode)));
-		return_UINT8(FALSE);
+		return_VALUE(FALSE);
 	}
 
 	/* Get info on the parent. The root_op is AML_SCOPE */
@@ -219,7 +219,7 @@ acpi_ds_is_result_used(union acpi_parse_object * op,
 	    acpi_ps_get_opcode_info(op->common.parent->common.aml_opcode);
 	if (parent_info->class == AML_CLASS_UNKNOWN) {
 		ACPI_ERROR((AE_INFO, "Unknown parent opcode Op=%p", op));
-		return_UINT8(FALSE);
+		return_VALUE(FALSE);
 	}
 
 	/*
@@ -307,7 +307,7 @@ acpi_ds_is_result_used(union acpi_parse_object * op,
 			  acpi_ps_get_opcode_name(op->common.parent->common.
 						  aml_opcode), op));
 
-	return_UINT8(TRUE);
+	return_VALUE(TRUE);
 
       result_not_used:
 	ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
@@ -316,7 +316,7 @@ acpi_ds_is_result_used(union acpi_parse_object * op,
 			  acpi_ps_get_opcode_name(op->common.parent->common.
 						  aml_opcode), op));
 
-	return_UINT8(FALSE);
+	return_VALUE(FALSE);
 }
 
 /*******************************************************************************
diff --git a/drivers/acpi/acpica/evgpe.c b/drivers/acpi/acpica/evgpe.c
index 4cbb6007068e..052d4c847012 100644
--- a/drivers/acpi/acpica/evgpe.c
+++ b/drivers/acpi/acpica/evgpe.c
@@ -707,7 +707,7 @@ acpi_ev_gpe_dispatch(struct acpi_namespace_node *gpe_device,
 		if (ACPI_FAILURE(status)) {
 			ACPI_EXCEPTION((AE_INFO, status,
 					"Unable to clear GPE%02X", gpe_number));
-			return_UINT32(ACPI_INTERRUPT_NOT_HANDLED);
+			return_VALUE(ACPI_INTERRUPT_NOT_HANDLED);
 		}
 	}
 
@@ -724,7 +724,7 @@ acpi_ev_gpe_dispatch(struct acpi_namespace_node *gpe_device,
 	if (ACPI_FAILURE(status)) {
 		ACPI_EXCEPTION((AE_INFO, status,
 				"Unable to disable GPE%02X", gpe_number));
-		return_UINT32(ACPI_INTERRUPT_NOT_HANDLED);
+		return_VALUE(ACPI_INTERRUPT_NOT_HANDLED);
 	}
 
 	/*
@@ -784,7 +784,7 @@ acpi_ev_gpe_dispatch(struct acpi_namespace_node *gpe_device,
 		break;
 	}
 
-	return_UINT32(ACPI_INTERRUPT_HANDLED);
+	return_VALUE(ACPI_INTERRUPT_HANDLED);
 }
 
 #endif				/* !ACPI_REDUCED_HARDWARE */
diff --git a/drivers/acpi/acpica/evsci.c b/drivers/acpi/acpica/evsci.c
index f9661e2b46a9..6c90f15460b0 100644
--- a/drivers/acpi/acpica/evsci.c
+++ b/drivers/acpi/acpica/evsci.c
@@ -89,7 +89,7 @@ static u32 ACPI_SYSTEM_XFACE acpi_ev_sci_xrupt_handler(void *context)
 	 */
 	interrupt_handled |= acpi_ev_gpe_detect(gpe_xrupt_list);
 
-	return_UINT32(interrupt_handled);
+	return_VALUE(interrupt_handled);
 }
 
 /*******************************************************************************
@@ -120,7 +120,7 @@ u32 ACPI_SYSTEM_XFACE acpi_ev_gpe_xrupt_handler(void *context)
 
 	interrupt_handled |= acpi_ev_gpe_detect(gpe_xrupt_list);
 
-	return_UINT32(interrupt_handled);
+	return_VALUE(interrupt_handled);
 }
 
 /******************************************************************************
diff --git a/drivers/acpi/acpica/exprep.c b/drivers/acpi/acpica/exprep.c
index ba9db4de7c89..60ee5e906ed4 100644
--- a/drivers/acpi/acpica/exprep.c
+++ b/drivers/acpi/acpica/exprep.c
@@ -276,7 +276,7 @@ acpi_ex_decode_field_access(union acpi_operand_object *obj_desc,
 		/* Invalid field access type */
 
 		ACPI_ERROR((AE_INFO, "Unknown field access type 0x%X", access));
-		return_UINT32(0);
+		return_VALUE(0);
 	}
 
 	if (obj_desc->common.type == ACPI_TYPE_BUFFER_FIELD) {
@@ -289,7 +289,7 @@ acpi_ex_decode_field_access(union acpi_operand_object *obj_desc,
 	}
 
 	*return_byte_alignment = byte_alignment;
-	return_UINT32(bit_length);
+	return_VALUE(bit_length);
 }
 
 /*******************************************************************************
diff --git a/drivers/acpi/acpica/exutils.c b/drivers/acpi/acpica/exutils.c
index 264d22d8018c..02ddc4ceca37 100644
--- a/drivers/acpi/acpica/exutils.c
+++ b/drivers/acpi/acpica/exutils.c
@@ -336,7 +336,7 @@ static u32 acpi_ex_digits_needed(u64 value, u32 base)
 	/* u64 is unsigned, so we don't worry about a '-' prefix */
 
 	if (value == 0) {
-		return_UINT32(1);
+		return_VALUE(1);
 	}
 
 	current_value = value;
@@ -350,7 +350,7 @@ static u32 acpi_ex_digits_needed(u64 value, u32 base)
 		num_digits++;
 	}
 
-	return_UINT32(num_digits);
+	return_VALUE(num_digits);
 }
 
 /*******************************************************************************
diff --git a/drivers/acpi/acpica/hwacpi.c b/drivers/acpi/acpica/hwacpi.c
index effa2b0a5932..2613e2945af3 100644
--- a/drivers/acpi/acpica/hwacpi.c
+++ b/drivers/acpi/acpica/hwacpi.c
@@ -151,18 +151,18 @@ u32 acpi_hw_get_mode(void)
 	 * system does not support mode transition.
 	 */
 	if (!acpi_gbl_FADT.smi_command) {
-		return_UINT32(ACPI_SYS_MODE_ACPI);
+		return_VALUE(ACPI_SYS_MODE_ACPI);
 	}
 
 	status = acpi_read_bit_register(ACPI_BITREG_SCI_ENABLE, &value);
 	if (ACPI_FAILURE(status)) {
-		return_UINT32(ACPI_SYS_MODE_LEGACY);
+		return_VALUE(ACPI_SYS_MODE_LEGACY);
 	}
 
 	if (value) {
-		return_UINT32(ACPI_SYS_MODE_ACPI);
+		return_VALUE(ACPI_SYS_MODE_ACPI);
 	} else {
-		return_UINT32(ACPI_SYS_MODE_LEGACY);
+		return_VALUE(ACPI_SYS_MODE_LEGACY);
 	}
 }
 
diff --git a/drivers/acpi/acpica/nsutils.c b/drivers/acpi/acpica/nsutils.c
index 596d4ccc963f..a771c8cd0e7c 100644
--- a/drivers/acpi/acpica/nsutils.c
+++ b/drivers/acpi/acpica/nsutils.c
@@ -112,10 +112,10 @@ acpi_object_type acpi_ns_get_type(struct acpi_namespace_node * node)
 
 	if (!node) {
 		ACPI_WARNING((AE_INFO, "Null Node parameter"));
-		return_UINT32(ACPI_TYPE_ANY);
+		return_VALUE(ACPI_TYPE_ANY);
 	}
 
-	return_UINT32((acpi_object_type) node->type);
+	return_VALUE(node->type);
 }
 
 /*******************************************************************************
@@ -140,10 +140,10 @@ u32 acpi_ns_local(acpi_object_type type)
 		/* Type code out of range  */
 
 		ACPI_WARNING((AE_INFO, "Invalid Object Type 0x%X", type));
-		return_UINT32(ACPI_NS_NORMAL);
+		return_VALUE(ACPI_NS_NORMAL);
 	}
 
-	return_UINT32((u32) acpi_gbl_ns_properties[type] & ACPI_NS_LOCAL);
+	return_VALUE(acpi_gbl_ns_properties[type] & ACPI_NS_LOCAL);
 }
 
 /*******************************************************************************
diff --git a/drivers/acpi/acpica/psargs.c b/drivers/acpi/acpica/psargs.c
index 9f3189395f3a..92565131cdda 100644
--- a/drivers/acpi/acpica/psargs.c
+++ b/drivers/acpi/acpica/psargs.c
@@ -108,7 +108,7 @@ acpi_ps_get_next_package_length(struct acpi_parse_state *parser_state)
 	/* Byte 0 is a special case, either bits [0:3] or [0:5] are used */
 
 	package_length |= (aml[0] & byte_zero_mask);
-	return_UINT32(package_length);
+	return_VALUE(package_length);
 }
 
 /*******************************************************************************
diff --git a/drivers/acpi/acpica/utaddress.c b/drivers/acpi/acpica/utaddress.c
index 64880306133d..b86ef850097e 100644
--- a/drivers/acpi/acpica/utaddress.c
+++ b/drivers/acpi/acpica/utaddress.c
@@ -214,7 +214,7 @@ acpi_ut_check_address_range(acpi_adr_space_type space_id,
 
 	if ((space_id != ACPI_ADR_SPACE_SYSTEM_MEMORY) &&
 	    (space_id != ACPI_ADR_SPACE_SYSTEM_IO)) {
-		return_UINT32(0);
+		return_VALUE(0);
 	}
 
 	range_info = acpi_gbl_address_range_list[space_id];
@@ -256,7 +256,7 @@ acpi_ut_check_address_range(acpi_adr_space_type space_id,
 		range_info = range_info->next;
 	}
 
-	return_UINT32(overlap_count);
+	return_VALUE(overlap_count);
 }
 
 /*******************************************************************************
-- 
cgit v1.2.3


From 10e9e75926ebec672d8a5031efbb21c938ca1820 Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Mon, 31 Dec 2012 00:06:27 +0000
Subject: ACPICA: Deploy new ACPI_IS_DEBUG_ENABLED macro in debug output code.

Simplifies check for debug output enables.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/exdump.c | 19 ++++++++++---------
 drivers/acpi/acpica/nsdump.c |  7 ++++---
 drivers/acpi/acpica/rsdump.c | 10 ++++++----
 3 files changed, 20 insertions(+), 16 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/exdump.c b/drivers/acpi/acpica/exdump.c
index 858b43a7dcf6..8698bffec47c 100644
--- a/drivers/acpi/acpica/exdump.c
+++ b/drivers/acpi/acpica/exdump.c
@@ -464,9 +464,8 @@ void acpi_ex_dump_operand(union acpi_operand_object *obj_desc, u32 depth)
 
 	ACPI_FUNCTION_NAME(ex_dump_operand)
 
-	    if (!
-		((ACPI_LV_EXEC & acpi_dbg_level)
-		  && (_COMPONENT & acpi_dbg_layer))) {
+	    /* Check if debug output enabled */
+	    if (!ACPI_IS_DEBUG_ENABLED(ACPI_LV_EXEC, _COMPONENT)) {
 		return;
 	}
 
@@ -811,9 +810,10 @@ void acpi_ex_dump_namespace_node(struct acpi_namespace_node *node, u32 flags)
 	ACPI_FUNCTION_ENTRY();
 
 	if (!flags) {
-		if (!
-		    ((ACPI_LV_OBJECTS & acpi_dbg_level)
-		      && (_COMPONENT & acpi_dbg_layer))) {
+
+		/* Check if debug output enabled */
+
+		if (!ACPI_IS_DEBUG_ENABLED(ACPI_LV_OBJECTS, _COMPONENT)) {
 			return;
 		}
 	}
@@ -999,9 +999,10 @@ acpi_ex_dump_object_descriptor(union acpi_operand_object *obj_desc, u32 flags)
 	}
 
 	if (!flags) {
-		if (!
-		    ((ACPI_LV_OBJECTS & acpi_dbg_level)
-		      && (_COMPONENT & acpi_dbg_layer))) {
+
+		/* Check if debug output enabled */
+
+		if (!ACPI_IS_DEBUG_ENABLED(ACPI_LV_OBJECTS, _COMPONENT)) {
 			return_VOID;
 		}
 	}
diff --git a/drivers/acpi/acpica/nsdump.c b/drivers/acpi/acpica/nsdump.c
index 8e6f00370a39..3e048794405d 100644
--- a/drivers/acpi/acpica/nsdump.c
+++ b/drivers/acpi/acpica/nsdump.c
@@ -77,8 +77,9 @@ void acpi_ns_print_pathname(u32 num_segments, char *pathname)
 
 	ACPI_FUNCTION_NAME(ns_print_pathname);
 
-	if (!(acpi_dbg_level & ACPI_LV_NAMES)
-	    || !(acpi_dbg_layer & ACPI_NAMESPACE)) {
+	/* Check if debug output enabled */
+
+	if (!ACPI_IS_DEBUG_ENABLED(ACPI_LV_NAMES, ACPI_NAMESPACE)) {
 		return;
 	}
 
@@ -127,7 +128,7 @@ acpi_ns_dump_pathname(acpi_handle handle, char *msg, u32 level, u32 component)
 
 	/* Do this only if the requested debug level and component are enabled */
 
-	if (!(acpi_dbg_level & level) || !(acpi_dbg_layer & component)) {
+	if (!ACPI_IS_DEBUG_ENABLED(level, component)) {
 		return_VOID;
 	}
 
diff --git a/drivers/acpi/acpica/rsdump.c b/drivers/acpi/acpica/rsdump.c
index 0b7381fed2ec..203b4aea53cd 100644
--- a/drivers/acpi/acpica/rsdump.c
+++ b/drivers/acpi/acpica/rsdump.c
@@ -766,8 +766,9 @@ void acpi_rs_dump_resource_list(struct acpi_resource *resource_list)
 
 	ACPI_FUNCTION_ENTRY();
 
-	if (!(acpi_dbg_level & ACPI_LV_RESOURCES)
-	    || !(_COMPONENT & acpi_dbg_layer)) {
+	/* Check if debug output enabled */
+
+	if (!ACPI_IS_DEBUG_ENABLED(ACPI_LV_RESOURCES, _COMPONENT)) {
 		return;
 	}
 
@@ -828,8 +829,9 @@ void acpi_rs_dump_irq_list(u8 * route_table)
 
 	ACPI_FUNCTION_ENTRY();
 
-	if (!(acpi_dbg_level & ACPI_LV_RESOURCES)
-	    || !(_COMPONENT & acpi_dbg_layer)) {
+	/* Check if debug output enabled */
+
+	if (!ACPI_IS_DEBUG_ENABLED(ACPI_LV_RESOURCES, _COMPONENT)) {
 		return;
 	}
 
-- 
cgit v1.2.3


From 0377b5acba2f258640822efe56fb29bada68bbe2 Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Mon, 31 Dec 2012 00:06:33 +0000
Subject: ACPICA: Merge all debug output macros into a single file, acoutput.

Moved the debug trace macros from acmacros.h into acoutput.h
where they belong.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/acmacros.h | 126 -----------------------------------------
 1 file changed, 126 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/acmacros.h b/drivers/acpi/acpica/acmacros.h
index 81f3cf7a4a59..2db0f103403b 100644
--- a/drivers/acpi/acpica/acmacros.h
+++ b/drivers/acpi/acpica/acmacros.h
@@ -388,132 +388,6 @@
 
 #endif				/* ACPI_NO_ERROR_MESSAGES */
 
-/*
- * Debug macros that are conditionally compiled
- */
-#ifdef ACPI_DEBUG_OUTPUT
-
-/*
- * Function entry tracing
- *
- * The name of the function is emitted as a local variable that is
- * intended to be used by both the entry trace and the exit trace.
- */
-
-/* Helper macro */
-
-#define ACPI_TRACE_ENTRY(name, function, cast, param) \
-	ACPI_FUNCTION_NAME (name) \
-	function (ACPI_DEBUG_PARAMETERS, cast (param))
-
-/* The actual entry trace macros */
-
-#define ACPI_FUNCTION_TRACE(name) \
-	ACPI_FUNCTION_NAME(name) \
-	acpi_ut_trace (ACPI_DEBUG_PARAMETERS)
-
-#define ACPI_FUNCTION_TRACE_PTR(name, pointer) \
-	ACPI_TRACE_ENTRY (name, acpi_ut_trace_ptr, (void *), pointer)
-
-#define ACPI_FUNCTION_TRACE_U32(name, value) \
-	ACPI_TRACE_ENTRY (name, acpi_ut_trace_u32, (u32), value)
-
-#define ACPI_FUNCTION_TRACE_STR(name, string) \
-	ACPI_TRACE_ENTRY (name, acpi_ut_trace_str, (char *), string)
-
-#define ACPI_FUNCTION_ENTRY() \
-	acpi_ut_track_stack_ptr()
-
-/*
- * Function exit tracing
- *
- * These macros include a return statement. This is usually considered
- * bad form, but having a separate exit macro before the actual return
- * is very ugly and difficult to maintain.
- *
- * One of the FUNCTION_TRACE macros above must be used in conjunction
- * with these macros so that "_AcpiFunctionName" is defined.
- *
- * Note: the DO_WHILE0 macro is used to prevent some compilers from
- * complaining about these constructs. On other compilers the do...while
- * adds some extra code, so this feature is optional.
- */
-#ifdef ACPI_USE_DO_WHILE_0
-#define ACPI_DO_WHILE0(a)               do a while(0)
-#else
-#define ACPI_DO_WHILE0(a)               a
-#endif
-
-/* Exit trace helper macro */
-
-#define ACPI_TRACE_EXIT(function, cast, param) \
-	ACPI_DO_WHILE0 ({ \
-		function (ACPI_DEBUG_PARAMETERS, cast (param)); \
-		return ((param)); \
-	})
-
-/* The actual exit macros */
-
-#define return_VOID \
-	ACPI_DO_WHILE0 ({ \
-		acpi_ut_exit (ACPI_DEBUG_PARAMETERS); \
-		return; \
-	})
-
-#define return_ACPI_STATUS(status) \
-	ACPI_TRACE_EXIT (acpi_ut_status_exit, (acpi_status), status)
-
-#define return_PTR(pointer) \
-	ACPI_TRACE_EXIT (acpi_ut_ptr_exit, (u8 *), pointer)
-
-#define return_VALUE(value) \
-	ACPI_TRACE_EXIT (acpi_ut_value_exit, (u64), value)
-
-/* Conditional execution */
-
-#define ACPI_DEBUG_EXEC(a)              a
-#define ACPI_DEBUG_ONLY_MEMBERS(a)      a;
-#define _VERBOSE_STRUCTURES
-
-/* Various object display routines for debug */
-
-#define ACPI_DUMP_STACK_ENTRY(a)        acpi_ex_dump_operand((a), 0)
-#define ACPI_DUMP_OPERANDS(a, b ,c)     acpi_ex_dump_operands(a, b, c)
-#define ACPI_DUMP_ENTRY(a, b)           acpi_ns_dump_entry (a, b)
-#define ACPI_DUMP_PATHNAME(a, b, c, d)  acpi_ns_dump_pathname(a, b, c, d)
-#define ACPI_DUMP_BUFFER(a, b)          acpi_ut_debug_dump_buffer((u8 *) a, b, DB_BYTE_DISPLAY, _COMPONENT)
-
-#else
-/*
- * This is the non-debug case -- make everything go away,
- * leaving no executable debug code!
- */
-#define ACPI_DEBUG_EXEC(a)
-#define ACPI_DEBUG_ONLY_MEMBERS(a)
-#define ACPI_FUNCTION_TRACE(a)
-#define ACPI_FUNCTION_TRACE_PTR(a, b)
-#define ACPI_FUNCTION_TRACE_U32(a, b)
-#define ACPI_FUNCTION_TRACE_STR(a, b)
-#define ACPI_FUNCTION_EXIT
-#define ACPI_FUNCTION_STATUS_EXIT(s)
-#define ACPI_FUNCTION_VALUE_EXIT(s)
-#define ACPI_FUNCTION_ENTRY()
-#define ACPI_DUMP_STACK_ENTRY(a)
-#define ACPI_DUMP_OPERANDS(a, b, c)
-#define ACPI_DUMP_ENTRY(a, b)
-#define ACPI_DUMP_TABLES(a, b)
-#define ACPI_DUMP_PATHNAME(a, b, c, d)
-#define ACPI_DUMP_BUFFER(a, b)
-#define ACPI_DEBUG_PRINT(pl)
-#define ACPI_DEBUG_PRINT_RAW(pl)
-
-#define return_VOID                     return
-#define return_ACPI_STATUS(s)           return(s)
-#define return_VALUE(s)                 return(s)
-#define return_PTR(s)                   return(s)
-
-#endif				/* ACPI_DEBUG_OUTPUT */
-
 #if (!ACPI_REDUCED_HARDWARE)
 #define ACPI_HW_OPTIONAL_FUNCTION(addr)     addr
 #else
-- 
cgit v1.2.3


From e81a52b8b642aa2322eff10607164b4f24ffd3ae Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Mon, 31 Dec 2012 00:06:50 +0000
Subject: ACPICA: Update for non-configured ACPI_IS_DEBUG_ENABLED macro.

Also add acoutput.h to the nsdump.c file.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/nsdump.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/nsdump.c b/drivers/acpi/acpica/nsdump.c
index 3e048794405d..37b0e688a1d8 100644
--- a/drivers/acpi/acpica/nsdump.c
+++ b/drivers/acpi/acpica/nsdump.c
@@ -44,6 +44,7 @@
 #include <acpi/acpi.h>
 #include "accommon.h"
 #include "acnamesp.h"
+#include <acpi/acoutput.h>
 
 #define _COMPONENT          ACPI_NAMESPACE
 ACPI_MODULE_NAME("nsdump")
-- 
cgit v1.2.3


From 78d025e2d057a3490f918a6e3ebe2486236505cf Mon Sep 17 00:00:00 2001
From: Tim Gardner <tim.gardner@canonical.com>
Date: Mon, 31 Dec 2012 00:06:56 +0000
Subject: ACPICA: Fix possible memory leak in dispatcher error path.

On error, delete mutex object created during method mutex creation.
Reported by tim.gardner@canonical.com.

Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/dsmethod.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/dsmethod.c b/drivers/acpi/acpica/dsmethod.c
index 54c968ab8144..4e5873ab4f01 100644
--- a/drivers/acpi/acpica/dsmethod.c
+++ b/drivers/acpi/acpica/dsmethod.c
@@ -151,6 +151,7 @@ acpi_ds_create_method_mutex(union acpi_operand_object *method_desc)
 
 	status = acpi_os_create_mutex(&mutex_desc->mutex.os_mutex);
 	if (ACPI_FAILURE(status)) {
+		acpi_ut_delete_object_desc(mutex_desc);
 		return_ACPI_STATUS(status);
 	}
 
-- 
cgit v1.2.3


From e3ab8e42ffe03418c199ea92a6f8bbb5f1e345c7 Mon Sep 17 00:00:00 2001
From: Aaron Lu <aaron.lu@intel.com>
Date: Mon, 31 Dec 2012 00:07:01 +0000
Subject: ACPICA: Resource manager: Add support for ACPI 5 wake bit in IRQ
 descriptor.

Add support to both get and set the extended share flags for the
IRQ() resource descriptor. Reported by Aaron Lu.

Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/rsirq.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/rsirq.c b/drivers/acpi/acpica/rsirq.c
index a718eca8e825..14cb76e03e14 100644
--- a/drivers/acpi/acpica/rsirq.c
+++ b/drivers/acpi/acpica/rsirq.c
@@ -80,7 +80,7 @@ struct acpi_rsconvert_info acpi_rs_get_irq[8] = {
 
 	{ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_AML_LENGTH, 0, 3},
 
-	/* Get flags: Triggering[0], Polarity[3], Sharing[4] */
+	/* Get flags: Triggering[0], Polarity[3], sharing_and_wake[4:5] */
 
 	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.triggering),
 	 AML_OFFSET(irq.flags),
@@ -90,7 +90,7 @@ struct acpi_rsconvert_info acpi_rs_get_irq[8] = {
 	 AML_OFFSET(irq.flags),
 	 3},
 
-	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.sharable),
+	{ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.irq.sharable),
 	 AML_OFFSET(irq.flags),
 	 4}
 };
@@ -114,7 +114,7 @@ struct acpi_rsconvert_info acpi_rs_set_irq[13] = {
 	 AML_OFFSET(irq.irq_mask),
 	 ACPI_RS_OFFSET(data.irq.interrupt_count)},
 
-	/* Set the flags byte */
+	/* Set flags: Triggering[0], Polarity[3], sharing_and_wake[4:5] */
 
 	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.triggering),
 	 AML_OFFSET(irq.flags),
@@ -124,7 +124,7 @@ struct acpi_rsconvert_info acpi_rs_set_irq[13] = {
 	 AML_OFFSET(irq.flags),
 	 3},
 
-	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.sharable),
+	{ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.irq.sharable),
 	 AML_OFFSET(irq.flags),
 	 4},
 
-- 
cgit v1.2.3


From 2fae3e56ca302366e422118107fc04247775825f Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Mon, 31 Dec 2012 00:07:08 +0000
Subject: ACPICA: Namespace: Eliminate dot...dot output during initialization.

This feature no longer serves any good purpose and also confuses any error
messages during ACPICA initialization.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/nsinit.c | 21 ++++-----------------
 1 file changed, 4 insertions(+), 17 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/nsinit.c b/drivers/acpi/acpica/nsinit.c
index 94c1500074c4..59cd5b4ba7e1 100644
--- a/drivers/acpi/acpica/nsinit.c
+++ b/drivers/acpi/acpica/nsinit.c
@@ -86,7 +86,7 @@ acpi_status acpi_ns_initialize_objects(void)
 	ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
 			  "**** Starting initialization of namespace objects ****\n"));
 	ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
-			      "Completing Region/Field/Buffer/Package initialization:"));
+			      "Completing Region/Field/Buffer/Package initialization:\n"));
 
 	/* Set all init info to zero */
 
@@ -102,7 +102,7 @@ acpi_status acpi_ns_initialize_objects(void)
 	}
 
 	ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
-			      "\nInitialized %u/%u Regions %u/%u Fields %u/%u "
+			      "Initialized %u/%u Regions %u/%u Fields %u/%u "
 			      "Buffers %u/%u Packages (%u nodes)\n",
 			      info.op_region_init, info.op_region_count,
 			      info.field_init, info.field_count,
@@ -149,7 +149,7 @@ acpi_status acpi_ns_initialize_devices(void)
 
 	ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
 			      "Initializing Device/Processor/Thermal objects "
-			      "by executing _INI methods:"));
+			      "and executing _INI methods:\n"));
 
 	/* Tree analysis: find all subtrees that contain _INI methods */
 
@@ -207,7 +207,7 @@ acpi_status acpi_ns_initialize_devices(void)
 	}
 
 	ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
-			      "\nExecuted %u _INI methods requiring %u _STA executions "
+			      "Executed %u _INI methods requiring %u _STA executions "
 			      "(examined %u objects)\n",
 			      info.num_INI, info.num_STA, info.device_count));
 
@@ -348,14 +348,6 @@ acpi_ns_init_one_object(acpi_handle obj_handle,
 				acpi_ut_get_type_name(type)));
 	}
 
-	/*
-	 * Print a dot for each object unless we are going to print the entire
-	 * pathname
-	 */
-	if (!(acpi_dbg_level & ACPI_LV_INIT_NAMES)) {
-		ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, "."));
-	}
-
 	/*
 	 * We ignore errors from above, and always return OK, since we don't want
 	 * to abort the walk on any single error.
@@ -575,11 +567,6 @@ acpi_ns_init_one_device(acpi_handle obj_handle,
 
 	if (ACPI_SUCCESS(status)) {
 		walk_info->num_INI++;
-
-		if ((acpi_dbg_level <= ACPI_LV_ALL_EXCEPTIONS) &&
-		    (!(acpi_dbg_level & ACPI_LV_INFO))) {
-			ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, "."));
-		}
 	}
 #ifdef ACPI_DEBUG_OUTPUT
 	else if (status != AE_NOT_FOUND) {
-- 
cgit v1.2.3


From 3e5621a750e2cfb26748c34acbb67c691845494a Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Mon, 31 Dec 2012 00:07:13 +0000
Subject: ACPICA: Update ACPICA initialization messages.

Clarify messages, indent if appropriate. Change a couple
appropriate messages to ACPI_INFO so they will appear even if
debug output is disabled.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/evgpeblk.c  | 22 ++++++++++++----------
 drivers/acpi/acpica/evgpeinit.c |  3 +++
 drivers/acpi/acpica/nsinit.c    |  6 +++---
 drivers/acpi/acpica/tbxfload.c  |  2 +-
 4 files changed, 19 insertions(+), 14 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/evgpeblk.c b/drivers/acpi/acpica/evgpeblk.c
index 1571a61a7833..78db9f5bb1e1 100644
--- a/drivers/acpi/acpica/evgpeblk.c
+++ b/drivers/acpi/acpica/evgpeblk.c
@@ -405,13 +405,13 @@ acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device,
 		(*return_gpe_block) = gpe_block;
 	}
 
-	ACPI_DEBUG_PRINT((ACPI_DB_INIT,
-			  "GPE %02X to %02X [%4.4s] %u regs on int 0x%X\n",
-			  (u32) gpe_block->block_base_number,
-			  (u32) (gpe_block->block_base_number +
-				(gpe_block->gpe_count - 1)),
-			  gpe_device->name.ascii, gpe_block->register_count,
-			  interrupt_number));
+	ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
+			      "    Initialized GPE %02X to %02X [%4.4s] %u regs on interrupt 0x%X\n",
+			      (u32)gpe_block->block_base_number,
+			      (u32)(gpe_block->block_base_number +
+				    (gpe_block->gpe_count - 1)),
+			      gpe_device->name.ascii, gpe_block->register_count,
+			      interrupt_number));
 
 	/* Update global count of currently available GPEs */
 
@@ -496,9 +496,11 @@ acpi_ev_initialize_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
 	}
 
 	if (gpe_enabled_count) {
-		ACPI_DEBUG_PRINT((ACPI_DB_INIT,
-				  "Enabled %u GPEs in this block\n",
-				  gpe_enabled_count));
+		ACPI_INFO((AE_INFO,
+			   "Enabled %u GPEs in block %02X to %02X",
+			   gpe_enabled_count, (u32)gpe_block->block_base_number,
+			   (u32)(gpe_block->block_base_number +
+				 (gpe_block->gpe_count - 1))));
 	}
 
 	gpe_block->initialized = TRUE;
diff --git a/drivers/acpi/acpica/evgpeinit.c b/drivers/acpi/acpica/evgpeinit.c
index da0add858f81..8ac86b0190a2 100644
--- a/drivers/acpi/acpica/evgpeinit.c
+++ b/drivers/acpi/acpica/evgpeinit.c
@@ -86,6 +86,9 @@ acpi_status acpi_ev_gpe_initialize(void)
 
 	ACPI_FUNCTION_TRACE(ev_gpe_initialize);
 
+	ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
+			      "Initializing General Purpose Events (GPEs):\n"));
+
 	status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
 	if (ACPI_FAILURE(status)) {
 		return_ACPI_STATUS(status);
diff --git a/drivers/acpi/acpica/nsinit.c b/drivers/acpi/acpica/nsinit.c
index 59cd5b4ba7e1..0f8de6e18c58 100644
--- a/drivers/acpi/acpica/nsinit.c
+++ b/drivers/acpi/acpica/nsinit.c
@@ -102,7 +102,7 @@ acpi_status acpi_ns_initialize_objects(void)
 	}
 
 	ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
-			      "Initialized %u/%u Regions %u/%u Fields %u/%u "
+			      "    Initialized %u/%u Regions %u/%u Fields %u/%u "
 			      "Buffers %u/%u Packages (%u nodes)\n",
 			      info.op_region_init, info.op_region_count,
 			      info.field_init, info.field_count,
@@ -149,7 +149,7 @@ acpi_status acpi_ns_initialize_devices(void)
 
 	ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
 			      "Initializing Device/Processor/Thermal objects "
-			      "and executing _INI methods:\n"));
+			      "and executing _INI/_STA methods:\n"));
 
 	/* Tree analysis: find all subtrees that contain _INI methods */
 
@@ -207,7 +207,7 @@ acpi_status acpi_ns_initialize_devices(void)
 	}
 
 	ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
-			      "Executed %u _INI methods requiring %u _STA executions "
+			      "    Executed %u _INI methods requiring %u _STA executions "
 			      "(examined %u objects)\n",
 			      info.num_INI, info.num_STA, info.device_count));
 
diff --git a/drivers/acpi/acpica/tbxfload.c b/drivers/acpi/acpica/tbxfload.c
index a5e1e4e47098..7feaafd94ff8 100644
--- a/drivers/acpi/acpica/tbxfload.c
+++ b/drivers/acpi/acpica/tbxfload.c
@@ -192,7 +192,7 @@ static acpi_status acpi_tb_load_namespace(void)
 		(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
 	}
 
-	ACPI_DEBUG_PRINT((ACPI_DB_INIT, "ACPI Tables successfully acquired\n"));
+	ACPI_INFO((AE_INFO, "All ACPI Tables successfully acquired"));
 
       unlock_and_exit:
 	(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
-- 
cgit v1.2.3


From ef42e53f271b99fe9eb853df5661edeac8a277f6 Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Mon, 31 Dec 2012 00:07:18 +0000
Subject: ACPICA: Interpreter: Add warning if 64-bit constant appears in 32-bit
 table.

Some ASL compilers allow 64-bit constants within a 32-bit table
(DSDT version == 1). When encountered, emit a warning that the
constant will be truncated to 32 bits. This is potentially a
serious problem in the ACPI table(s).

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/acinterp.h |  2 +-
 drivers/acpi/acpica/dsobject.c | 14 ++++++++++++--
 drivers/acpi/acpica/dswexec.c  |  4 ++--
 drivers/acpi/acpica/exconvrt.c |  2 +-
 drivers/acpi/acpica/exstoren.c |  2 +-
 drivers/acpi/acpica/exutils.c  | 18 +++++++++++-------
 6 files changed, 28 insertions(+), 14 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/acinterp.h b/drivers/acpi/acpica/acinterp.h
index eb308635da72..16469b0e7b6a 100644
--- a/drivers/acpi/acpica/acinterp.h
+++ b/drivers/acpi/acpica/acinterp.h
@@ -458,7 +458,7 @@ void acpi_ex_reacquire_interpreter(void);
 
 void acpi_ex_relinquish_interpreter(void);
 
-void acpi_ex_truncate_for32bit_table(union acpi_operand_object *obj_desc);
+u8 acpi_ex_truncate_for32bit_table(union acpi_operand_object *obj_desc);
 
 void acpi_ex_acquire_global_lock(u32 rule);
 
diff --git a/drivers/acpi/acpica/dsobject.c b/drivers/acpi/acpica/dsobject.c
index 13844a115d97..82050bcd90e7 100644
--- a/drivers/acpi/acpica/dsobject.c
+++ b/drivers/acpi/acpica/dsobject.c
@@ -703,7 +703,7 @@ acpi_ds_init_object_from_op(struct acpi_walk_state *walk_state,
 				/* Truncate value if we are executing from a 32-bit ACPI table */
 
 #ifndef ACPI_NO_METHOD_EXECUTION
-				acpi_ex_truncate_for32bit_table(obj_desc);
+				(void)acpi_ex_truncate_for32bit_table(obj_desc);
 #endif
 				break;
 
@@ -725,8 +725,18 @@ acpi_ds_init_object_from_op(struct acpi_walk_state *walk_state,
 		case AML_TYPE_LITERAL:
 
 			obj_desc->integer.value = op->common.value.integer;
+
 #ifndef ACPI_NO_METHOD_EXECUTION
-			acpi_ex_truncate_for32bit_table(obj_desc);
+			if (acpi_ex_truncate_for32bit_table(obj_desc)) {
+
+				/* Warn if we found a 64-bit constant in a 32-bit table */
+
+				ACPI_WARNING((AE_INFO,
+					      "Truncated 64-bit constant found in 32-bit table: %8.8X%8.8X => %8.8X",
+					      ACPI_FORMAT_UINT64(op->common.
+								 value.integer),
+					      (u32)obj_desc->integer.value));
+			}
 #endif
 			break;
 
diff --git a/drivers/acpi/acpica/dswexec.c b/drivers/acpi/acpica/dswexec.c
index 58593931be96..9e0d21076c48 100644
--- a/drivers/acpi/acpica/dswexec.c
+++ b/drivers/acpi/acpica/dswexec.c
@@ -149,7 +149,7 @@ acpi_ds_get_predicate_value(struct acpi_walk_state *walk_state,
 
 	/* Truncate the predicate to 32-bits if necessary */
 
-	acpi_ex_truncate_for32bit_table(local_obj_desc);
+	(void)acpi_ex_truncate_for32bit_table(local_obj_desc);
 
 	/*
 	 * Save the result of the predicate evaluation on
@@ -706,7 +706,7 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state)
 	 * ACPI 2.0 support for 64-bit integers: Truncate numeric
 	 * result value if we are executing from a 32-bit ACPI table
 	 */
-	acpi_ex_truncate_for32bit_table(walk_state->result_obj);
+	(void)acpi_ex_truncate_for32bit_table(walk_state->result_obj);
 
 	/*
 	 * Check if we just completed the evaluation of a
diff --git a/drivers/acpi/acpica/exconvrt.c b/drivers/acpi/acpica/exconvrt.c
index 4492a4e03022..d6a7b6fe359a 100644
--- a/drivers/acpi/acpica/exconvrt.c
+++ b/drivers/acpi/acpica/exconvrt.c
@@ -176,7 +176,7 @@ acpi_ex_convert_to_integer(union acpi_operand_object *obj_desc,
 
 	/* Save the Result */
 
-	acpi_ex_truncate_for32bit_table(return_desc);
+	(void)acpi_ex_truncate_for32bit_table(return_desc);
 	*result_desc = return_desc;
 	return_ACPI_STATUS(AE_OK);
 }
diff --git a/drivers/acpi/acpica/exstoren.c b/drivers/acpi/acpica/exstoren.c
index 87153bbc4b43..85a74b74e372 100644
--- a/drivers/acpi/acpica/exstoren.c
+++ b/drivers/acpi/acpica/exstoren.c
@@ -253,7 +253,7 @@ acpi_ex_store_object_to_object(union acpi_operand_object *source_desc,
 
 		/* Truncate value if we are executing from a 32-bit ACPI table */
 
-		acpi_ex_truncate_for32bit_table(dest_desc);
+		(void)acpi_ex_truncate_for32bit_table(dest_desc);
 		break;
 
 	case ACPI_TYPE_STRING:
diff --git a/drivers/acpi/acpica/exutils.c b/drivers/acpi/acpica/exutils.c
index 02ddc4ceca37..e624958f33b8 100644
--- a/drivers/acpi/acpica/exutils.c
+++ b/drivers/acpi/acpica/exutils.c
@@ -202,35 +202,39 @@ void acpi_ex_relinquish_interpreter(void)
  *
  * PARAMETERS:  obj_desc        - Object to be truncated
  *
- * RETURN:      none
+ * RETURN:      TRUE if a truncation was performed, FALSE otherwise.
  *
  * DESCRIPTION: Truncate an ACPI Integer to 32 bits if the execution mode is
  *              32-bit, as determined by the revision of the DSDT.
  *
  ******************************************************************************/
 
-void acpi_ex_truncate_for32bit_table(union acpi_operand_object *obj_desc)
+u8 acpi_ex_truncate_for32bit_table(union acpi_operand_object *obj_desc)
 {
 
 	ACPI_FUNCTION_ENTRY();
 
 	/*
 	 * Object must be a valid number and we must be executing
-	 * a control method. NS node could be there for AML_INT_NAMEPATH_OP.
+	 * a control method. Object could be NS node for AML_INT_NAMEPATH_OP.
 	 */
 	if ((!obj_desc) ||
 	    (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) != ACPI_DESC_TYPE_OPERAND) ||
 	    (obj_desc->common.type != ACPI_TYPE_INTEGER)) {
-		return;
+		return (FALSE);
 	}
 
-	if (acpi_gbl_integer_byte_width == 4) {
+	if ((acpi_gbl_integer_byte_width == 4) &&
+	    (obj_desc->integer.value > (u64)ACPI_UINT32_MAX)) {
 		/*
-		 * We are running a method that exists in a 32-bit ACPI table.
+		 * We are executing in a 32-bit ACPI table.
 		 * Truncate the value to 32 bits by zeroing out the upper 32-bit field
 		 */
-		obj_desc->integer.value &= (u64) ACPI_UINT32_MAX;
+		obj_desc->integer.value &= (u64)ACPI_UINT32_MAX;
+		return (TRUE);
 	}
+
+	return (FALSE);
 }
 
 /*******************************************************************************
-- 
cgit v1.2.3


From f7b488e23cadc76503cbf37d7c432cfb0a77f41f Mon Sep 17 00:00:00 2001
From: Aaron Lu <aaron.lu@intel.com>
Date: Mon, 31 Dec 2012 00:07:24 +0000
Subject: ACPICA: Resources: Support for ACPI 5 wake bit in ExtendedInterrupt
 descriptor.

Add support to both get and set the extended share flags for the
Interrupt() resource descriptor. Reported by Aaron Lu.

Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/rsirq.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/rsirq.c b/drivers/acpi/acpica/rsirq.c
index 14cb76e03e14..f3733ee0cac8 100644
--- a/drivers/acpi/acpica/rsirq.c
+++ b/drivers/acpi/acpica/rsirq.c
@@ -190,8 +190,10 @@ struct acpi_rsconvert_info acpi_rs_convert_ext_irq[9] = {
 	 sizeof(struct aml_resource_extended_irq),
 	 0},
 
-	/* Flag bits */
-
+	/*
+	 * Flags: Producer/Consumer[0], Triggering[1], Polarity[2],
+	 *        sharing_and_wake[3:4]
+	 */
 	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.producer_consumer),
 	 AML_OFFSET(extended_irq.flags),
 	 0},
@@ -204,7 +206,7 @@ struct acpi_rsconvert_info acpi_rs_convert_ext_irq[9] = {
 	 AML_OFFSET(extended_irq.flags),
 	 2},
 
-	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.sharable),
+	{ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.extended_irq.sharable),
 	 AML_OFFSET(extended_irq.flags),
 	 3},
 
@@ -283,7 +285,6 @@ struct acpi_rsconvert_info acpi_rs_convert_fixed_dma[4] = {
 	 * request_lines
 	 * Channels
 	 */
-
 	{ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.fixed_dma.request_lines),
 	 AML_OFFSET(fixed_dma.request_lines),
 	 2},
@@ -291,5 +292,4 @@ struct acpi_rsconvert_info acpi_rs_convert_fixed_dma[4] = {
 	{ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.fixed_dma.width),
 	 AML_OFFSET(fixed_dma.width),
 	 1},
-
 };
-- 
cgit v1.2.3


From 9cea6249c9154a7d0b322a226261697f947692ad Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Mon, 31 Dec 2012 00:07:31 +0000
Subject: ACPICA: Resources: Split interrupt share/wake bits into two fields.

These two bits are merged at the external interface level for the
IRQ, Interrupt, and GpioInt resource descriptors. However, these
bits are logically independent and there is no need to keep them
merged internally. Therefore, this change splits the bits into
"sharable" and "wake capable" fields within the resource manager.
This simplifies drive code that needs to examine these bits.
Aaron Lu, Bob Moore.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/rsirq.c    | 32 ++++++++++++++++++++++----------
 drivers/acpi/acpica/rsserial.c |  8 ++++++--
 2 files changed, 28 insertions(+), 12 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/rsirq.c b/drivers/acpi/acpica/rsirq.c
index f3733ee0cac8..9c1d74a8a678 100644
--- a/drivers/acpi/acpica/rsirq.c
+++ b/drivers/acpi/acpica/rsirq.c
@@ -53,7 +53,7 @@ ACPI_MODULE_NAME("rsirq")
  * acpi_rs_get_irq
  *
  ******************************************************************************/
-struct acpi_rsconvert_info acpi_rs_get_irq[8] = {
+struct acpi_rsconvert_info acpi_rs_get_irq[9] = {
 	{ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_IRQ,
 	 ACPI_RS_SIZE(struct acpi_resource_irq),
 	 ACPI_RSC_TABLE_SIZE(acpi_rs_get_irq)},
@@ -80,7 +80,7 @@ struct acpi_rsconvert_info acpi_rs_get_irq[8] = {
 
 	{ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_AML_LENGTH, 0, 3},
 
-	/* Get flags: Triggering[0], Polarity[3], sharing_and_wake[4:5] */
+	/* Get flags: Triggering[0], Polarity[3], Sharing[4], Wake[5] */
 
 	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.triggering),
 	 AML_OFFSET(irq.flags),
@@ -90,9 +90,13 @@ struct acpi_rsconvert_info acpi_rs_get_irq[8] = {
 	 AML_OFFSET(irq.flags),
 	 3},
 
-	{ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.irq.sharable),
+	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.sharable),
 	 AML_OFFSET(irq.flags),
-	 4}
+	 4},
+
+	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.wake_capable),
+	 AML_OFFSET(irq.flags),
+	 5}
 };
 
 /*******************************************************************************
@@ -101,7 +105,7 @@ struct acpi_rsconvert_info acpi_rs_get_irq[8] = {
  *
  ******************************************************************************/
 
-struct acpi_rsconvert_info acpi_rs_set_irq[13] = {
+struct acpi_rsconvert_info acpi_rs_set_irq[14] = {
 	/* Start with a default descriptor of length 3 */
 
 	{ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_IRQ,
@@ -114,7 +118,7 @@ struct acpi_rsconvert_info acpi_rs_set_irq[13] = {
 	 AML_OFFSET(irq.irq_mask),
 	 ACPI_RS_OFFSET(data.irq.interrupt_count)},
 
-	/* Set flags: Triggering[0], Polarity[3], sharing_and_wake[4:5] */
+	/* Set flags: Triggering[0], Polarity[3], Sharing[4], Wake[5] */
 
 	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.triggering),
 	 AML_OFFSET(irq.flags),
@@ -124,10 +128,14 @@ struct acpi_rsconvert_info acpi_rs_set_irq[13] = {
 	 AML_OFFSET(irq.flags),
 	 3},
 
-	{ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.irq.sharable),
+	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.sharable),
 	 AML_OFFSET(irq.flags),
 	 4},
 
+	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.wake_capable),
+	 AML_OFFSET(irq.flags),
+	 5},
+
 	/*
 	 * All done if the output descriptor length is required to be 3
 	 * (i.e., optimization to 2 bytes cannot be attempted)
@@ -181,7 +189,7 @@ struct acpi_rsconvert_info acpi_rs_set_irq[13] = {
  *
  ******************************************************************************/
 
-struct acpi_rsconvert_info acpi_rs_convert_ext_irq[9] = {
+struct acpi_rsconvert_info acpi_rs_convert_ext_irq[10] = {
 	{ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_EXTENDED_IRQ,
 	 ACPI_RS_SIZE(struct acpi_resource_extended_irq),
 	 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_ext_irq)},
@@ -192,7 +200,7 @@ struct acpi_rsconvert_info acpi_rs_convert_ext_irq[9] = {
 
 	/*
 	 * Flags: Producer/Consumer[0], Triggering[1], Polarity[2],
-	 *        sharing_and_wake[3:4]
+	 *        Sharing[3], Wake[4]
 	 */
 	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.producer_consumer),
 	 AML_OFFSET(extended_irq.flags),
@@ -206,10 +214,14 @@ struct acpi_rsconvert_info acpi_rs_convert_ext_irq[9] = {
 	 AML_OFFSET(extended_irq.flags),
 	 2},
 
-	{ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.extended_irq.sharable),
+	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.sharable),
 	 AML_OFFSET(extended_irq.flags),
 	 3},
 
+	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.wake_capable),
+	 AML_OFFSET(extended_irq.flags),
+	 4},
+
 	/* IRQ Table length (Byte4) */
 
 	{ACPI_RSC_COUNT, ACPI_RS_OFFSET(data.extended_irq.interrupt_count),
diff --git a/drivers/acpi/acpica/rsserial.c b/drivers/acpi/acpica/rsserial.c
index 9aa5e689b444..197bab0248e6 100644
--- a/drivers/acpi/acpica/rsserial.c
+++ b/drivers/acpi/acpica/rsserial.c
@@ -53,7 +53,7 @@ ACPI_MODULE_NAME("rsserial")
  * acpi_rs_convert_gpio
  *
  ******************************************************************************/
-struct acpi_rsconvert_info acpi_rs_convert_gpio[17] = {
+struct acpi_rsconvert_info acpi_rs_convert_gpio[18] = {
 	{ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_GPIO,
 	 ACPI_RS_SIZE(struct acpi_resource_gpio),
 	 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_gpio)},
@@ -75,10 +75,14 @@ struct acpi_rsconvert_info acpi_rs_convert_gpio[17] = {
 	 AML_OFFSET(gpio.flags),
 	 0},
 
-	{ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.gpio.sharable),
+	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.gpio.sharable),
 	 AML_OFFSET(gpio.int_flags),
 	 3},
 
+	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.gpio.wake_capable),
+	 AML_OFFSET(gpio.int_flags),
+	 4},
+
 	{ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.gpio.io_restriction),
 	 AML_OFFSET(gpio.int_flags),
 	 0},
-- 
cgit v1.2.3


From 3f654bad3257427bea7ba1c4d43a23d99a03622b Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Mon, 31 Dec 2012 00:11:45 +0000
Subject: ACPICA: Interpreter: Fix Store() when implicit conversion is not
 possible.

For the cases such as a store of a string to an existing package
object, implement the store as a CopyObject().
This is a small departure from the ACPI specification which states
that the control method should be aborted in this case. However,
ASLTS suite depends on this behavior.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/exstore.c | 29 ++++++++++++++++++++++++-----
 1 file changed, 24 insertions(+), 5 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/exstore.c b/drivers/acpi/acpica/exstore.c
index 90431f12f831..4ff37e8e0018 100644
--- a/drivers/acpi/acpica/exstore.c
+++ b/drivers/acpi/acpica/exstore.c
@@ -487,14 +487,33 @@ acpi_ex_store_object_to_node(union acpi_operand_object *source_desc,
 	default:
 
 		ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
-				  "Storing %s (%p) directly into node (%p) with no implicit conversion\n",
+				  "Storing [%s] (%p) directly into node [%s] (%p)"
+				  " with no implicit conversion\n",
 				  acpi_ut_get_object_type_name(source_desc),
-				  source_desc, node));
+				  source_desc,
+				  acpi_ut_get_object_type_name(target_desc),
+				  node));
 
-		/* No conversions for all other types. Just attach the source object */
+		/*
+		 * No conversions for all other types. Directly store a copy of
+		 * the source object. NOTE: This is a departure from the ACPI
+		 * spec, which states "If conversion is impossible, abort the
+		 * running control method".
+		 *
+		 * This code implements "If conversion is impossible, treat the
+		 * Store operation as a CopyObject".
+		 */
+		status =
+		    acpi_ut_copy_iobject_to_iobject(source_desc, &new_desc,
+						    walk_state);
+		if (ACPI_FAILURE(status)) {
+			return_ACPI_STATUS(status);
+		}
 
-		status = acpi_ns_attach_object(node, source_desc,
-					       source_desc->common.type);
+		status =
+		    acpi_ns_attach_object(node, new_desc,
+					  new_desc->common.type);
+		acpi_ut_remove_reference(new_desc);
 		break;
 	}
 
-- 
cgit v1.2.3


From 4f8429166818dd615891990040ce13373893ee9a Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Mon, 31 Dec 2012 00:25:42 +0000
Subject: ACPICA: Cleanup PM_TIMER_FREQUENCY definition.

This is a cosmetic patch only. Comparison of the resulting binary showed
only line number differences.

This patch does not affect the generation of the Linux binary.
This patch decreases 13 lines of 20121114 divergence.diff.

There is updates in ACPICA for PM_TIMER_FREQUENCY macro, this patch cleans
up the usage of this macro in Linux. This patch can also reduce the source
code diff between Linux and ACPICA.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/processor_idle.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index f1a5da44591d..6ea26eae391f 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -64,10 +64,11 @@
 #define ACPI_PROCESSOR_CLASS            "processor"
 #define _COMPONENT              ACPI_PROCESSOR_COMPONENT
 ACPI_MODULE_NAME("processor_idle");
-#define PM_TIMER_TICK_NS		(1000000000ULL/PM_TIMER_FREQUENCY)
+#define PM_TIMER_TICK_NS		(1000000000ULL/ACPI_PM_TIMER_FREQUENCY)
 #define C2_OVERHEAD			1	/* 1us */
 #define C3_OVERHEAD			1	/* 1us */
-#define PM_TIMER_TICKS_TO_US(p)		(((p) * 1000)/(PM_TIMER_FREQUENCY/1000))
+#define PM_TIMER_TICKS_TO_US(p)		\
+	(((p) * 1000)/(ACPI_PM_TIMER_FREQUENCY/1000))
 
 static unsigned int max_cstate __read_mostly = ACPI_PROCESSOR_MAX_POWER;
 module_param(max_cstate, uint, 0000);
-- 
cgit v1.2.3


From 42f8fb75c43cc67f06424f991009b3af674f93eb Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Fri, 11 Jan 2013 13:08:51 +0100
Subject: ACPICA: Source restructuring: split large files into 8 new files.

Created logical splits for eight new files. Improves modularity
and configurability.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/Makefile     |   8 +-
 drivers/acpi/acpica/acdebug.h    |  17 +
 drivers/acpi/acpica/acevents.h   |  21 +-
 drivers/acpi/acpica/acnamesp.h   |  12 +
 drivers/acpi/acpica/acparser.h   |  23 +-
 drivers/acpi/acpica/acresrc.h    |   6 +-
 drivers/acpi/acpica/acutils.h    |  50 +--
 drivers/acpi/acpica/evhandler.c  | 529 +++++++++++++++++++++++++
 drivers/acpi/acpica/evregion.c   | 582 +++------------------------
 drivers/acpi/acpica/nspredef.c   | 581 +--------------------------
 drivers/acpi/acpica/nsprepkg.c   | 621 +++++++++++++++++++++++++++++
 drivers/acpi/acpica/psloop.c     | 622 -----------------------------
 drivers/acpi/acpica/psobject.c   | 647 ++++++++++++++++++++++++++++++
 drivers/acpi/acpica/psopcode.c   | 172 --------
 drivers/acpi/acpica/psopinfo.c   | 223 +++++++++++
 drivers/acpi/acpica/rsdump.c     | 409 +------------------
 drivers/acpi/acpica/rsdumpinfo.c | 454 +++++++++++++++++++++
 drivers/acpi/acpica/utmisc.c     | 828 ++++-----------------------------------
 drivers/acpi/acpica/utownerid.c  | 218 +++++++++++
 drivers/acpi/acpica/utstring.c   | 574 +++++++++++++++++++++++++++
 20 files changed, 3494 insertions(+), 3103 deletions(-)
 create mode 100644 drivers/acpi/acpica/evhandler.c
 create mode 100644 drivers/acpi/acpica/nsprepkg.c
 create mode 100644 drivers/acpi/acpica/psobject.c
 create mode 100644 drivers/acpi/acpica/psopinfo.c
 create mode 100644 drivers/acpi/acpica/rsdumpinfo.c
 create mode 100644 drivers/acpi/acpica/utownerid.c
 create mode 100644 drivers/acpi/acpica/utstring.c

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/Makefile b/drivers/acpi/acpica/Makefile
index bc7a03ded064..a1b9bf5085a2 100644
--- a/drivers/acpi/acpica/Makefile
+++ b/drivers/acpi/acpica/Makefile
@@ -31,6 +31,7 @@ acpi-y +=		\
 	evgpeinit.o	\
 	evgpeutil.o	\
 	evglock.o	\
+	evhandler.o	\
 	evmisc.o	\
 	evregion.o	\
 	evrgnini.o	\
@@ -90,6 +91,7 @@ acpi-y +=		\
 	nsobject.o	\
 	nsparse.o	\
 	nspredef.o	\
+	nsprepkg.o	\
 	nsrepair.o	\
 	nsrepair2.o	\
 	nssearch.o	\
@@ -104,7 +106,9 @@ acpi-$(ACPI_FUTURE_USAGE) += nsdumpdv.o
 acpi-y +=		\
 	psargs.o	\
 	psloop.o	\
+	psobject.o	\
 	psopcode.o	\
+	psopinfo.o	\
 	psparse.o	\
 	psscope.o	\
 	pstree.o	\
@@ -126,7 +130,7 @@ acpi-y +=		\
 	rsutils.o	\
 	rsxface.o
 
-acpi-$(ACPI_FUTURE_USAGE) += rsdump.o
+acpi-$(ACPI_FUTURE_USAGE) += rsdump.o rsdumpinfo.o
 
 acpi-y +=		\
 	tbfadt.o	\
@@ -155,8 +159,10 @@ acpi-y +=		\
 	utmutex.o	\
 	utobject.o	\
 	utosi.o		\
+	utownerid.o	\
 	utresrc.o	\
 	utstate.o	\
+	utstring.o	\
 	utxface.o	\
 	utxfinit.o	\
 	utxferror.o	\
diff --git a/drivers/acpi/acpica/acdebug.h b/drivers/acpi/acpica/acdebug.h
index 432a318c9ed1..c8dea18ccdc8 100644
--- a/drivers/acpi/acpica/acdebug.h
+++ b/drivers/acpi/acpica/acdebug.h
@@ -114,6 +114,21 @@ ACPI_HW_DEPENDENT_RETURN_VOID(void
 			      acpi_db_generate_gpe(char *gpe_arg,
 						   char *block_arg))
 
+/*
+ * dbconvert - miscellaneous conversion routines
+ */
+ acpi_status acpi_db_hex_char_to_value(int hex_char, u8 *return_value);
+
+acpi_status acpi_db_convert_to_package(char *string, union acpi_object *object);
+
+acpi_status
+acpi_db_convert_to_object(acpi_object_type type,
+			  char *string, union acpi_object *object);
+
+u8 *acpi_db_encode_pld_buffer(struct acpi_pld_info *pld_info);
+
+void acpi_db_dump_pld_buffer(union acpi_object *obj_desc);
+
 /*
  * dbmethod - control method commands
  */
@@ -191,6 +206,8 @@ void
 acpi_db_create_execution_threads(char *num_threads_arg,
 				 char *num_loops_arg, char *method_name_arg);
 
+void acpi_db_delete_objects(u32 count, union acpi_object *objects);
+
 #ifdef ACPI_DBG_TRACK_ALLOCATIONS
 u32 acpi_db_get_cache_info(struct acpi_memory_list *cache);
 #endif
diff --git a/drivers/acpi/acpica/acevents.h b/drivers/acpi/acpica/acevents.h
index e975c6720448..35a2cbce467b 100644
--- a/drivers/acpi/acpica/acevents.h
+++ b/drivers/acpi/acpica/acevents.h
@@ -158,10 +158,23 @@ acpi_ev_delete_gpe_handlers(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
 			    void *context);
 
 /*
- * evregion - Address Space handling
+ * evhandler - Address space handling
  */
+u8
+acpi_ev_has_default_handler(struct acpi_namespace_node *node,
+			    acpi_adr_space_type space_id);
+
 acpi_status acpi_ev_install_region_handlers(void);
 
+acpi_status
+acpi_ev_install_space_handler(struct acpi_namespace_node *node,
+			      acpi_adr_space_type space_id,
+			      acpi_adr_space_handler handler,
+			      acpi_adr_space_setup setup, void *context);
+
+/*
+ * evregion - Operation region support
+ */
 acpi_status acpi_ev_initialize_op_regions(void);
 
 acpi_status
@@ -179,12 +192,6 @@ void
 acpi_ev_detach_region(union acpi_operand_object *region_obj,
 		      u8 acpi_ns_is_locked);
 
-acpi_status
-acpi_ev_install_space_handler(struct acpi_namespace_node *node,
-			      acpi_adr_space_type space_id,
-			      acpi_adr_space_handler handler,
-			      acpi_adr_space_setup setup, void *context);
-
 acpi_status
 acpi_ev_execute_reg_methods(struct acpi_namespace_node *node,
 			    acpi_adr_space_type space_id);
diff --git a/drivers/acpi/acpica/acnamesp.h b/drivers/acpi/acpica/acnamesp.h
index b826d9c7aa73..bbfcd1b72b3b 100644
--- a/drivers/acpi/acpica/acnamesp.h
+++ b/drivers/acpi/acpica/acnamesp.h
@@ -218,6 +218,18 @@ acpi_ns_check_parameter_count(char *pathname,
 			      u32 user_param_count,
 			      const union acpi_predefined_info *info);
 
+acpi_status
+acpi_ns_check_object_type(struct acpi_predefined_data *data,
+			  union acpi_operand_object **return_object_ptr,
+			  u32 expected_btypes, u32 package_index);
+
+/*
+ * nsprepkg - Validation of predefined name packages
+ */
+acpi_status
+acpi_ns_check_package(struct acpi_predefined_data *data,
+		      union acpi_operand_object **return_object_ptr);
+
 /*
  * nsnames - Name and Scope manipulation
  */
diff --git a/drivers/acpi/acpica/acparser.h b/drivers/acpi/acpica/acparser.h
index 24a59056eee1..e8f5726a1ab3 100644
--- a/drivers/acpi/acpica/acparser.h
+++ b/drivers/acpi/acpica/acparser.h
@@ -105,7 +105,28 @@ union acpi_parse_object *acpi_ps_find_name(union acpi_parse_object *scope,
 union acpi_parse_object *acpi_ps_get_parent(union acpi_parse_object *op);
 
 /*
- * psopcode - AML Opcode information
+ * psobject - support for parse object processing
+ */
+acpi_status
+acpi_ps_build_named_op(struct acpi_walk_state *walk_state,
+		       u8 *aml_op_start,
+		       union acpi_parse_object *unnamed_op,
+		       union acpi_parse_object **op);
+
+acpi_status
+acpi_ps_create_op(struct acpi_walk_state *walk_state,
+		  u8 *aml_op_start, union acpi_parse_object **new_op);
+
+acpi_status
+acpi_ps_complete_op(struct acpi_walk_state *walk_state,
+		    union acpi_parse_object **op, acpi_status status);
+
+acpi_status
+acpi_ps_complete_final_op(struct acpi_walk_state *walk_state,
+			  union acpi_parse_object *op, acpi_status status);
+
+/*
+ * psopinfo - AML Opcode information
  */
 const struct acpi_opcode_info *acpi_ps_get_opcode_info(u16 opcode);
 
diff --git a/drivers/acpi/acpica/acresrc.h b/drivers/acpi/acpica/acresrc.h
index 0347d0993497..89bc3aa99ede 100644
--- a/drivers/acpi/acpica/acresrc.h
+++ b/drivers/acpi/acpica/acresrc.h
@@ -347,18 +347,21 @@ extern struct acpi_rsdump_info *acpi_gbl_dump_resource_dispatch[];
 extern struct acpi_rsdump_info *acpi_gbl_dump_serial_bus_dispatch[];
 
 /*
- * rsdump
+ * rsdumpinfo
  */
 extern struct acpi_rsdump_info acpi_rs_dump_irq[];
+extern struct acpi_rsdump_info acpi_rs_dump_prt[];
 extern struct acpi_rsdump_info acpi_rs_dump_dma[];
 extern struct acpi_rsdump_info acpi_rs_dump_start_dpf[];
 extern struct acpi_rsdump_info acpi_rs_dump_end_dpf[];
 extern struct acpi_rsdump_info acpi_rs_dump_io[];
+extern struct acpi_rsdump_info acpi_rs_dump_io_flags[];
 extern struct acpi_rsdump_info acpi_rs_dump_fixed_io[];
 extern struct acpi_rsdump_info acpi_rs_dump_vendor[];
 extern struct acpi_rsdump_info acpi_rs_dump_end_tag[];
 extern struct acpi_rsdump_info acpi_rs_dump_memory24[];
 extern struct acpi_rsdump_info acpi_rs_dump_memory32[];
+extern struct acpi_rsdump_info acpi_rs_dump_memory_flags[];
 extern struct acpi_rsdump_info acpi_rs_dump_fixed_memory32[];
 extern struct acpi_rsdump_info acpi_rs_dump_address16[];
 extern struct acpi_rsdump_info acpi_rs_dump_address32[];
@@ -372,6 +375,7 @@ extern struct acpi_rsdump_info acpi_rs_dump_common_serial_bus[];
 extern struct acpi_rsdump_info acpi_rs_dump_i2c_serial_bus[];
 extern struct acpi_rsdump_info acpi_rs_dump_spi_serial_bus[];
 extern struct acpi_rsdump_info acpi_rs_dump_uart_serial_bus[];
+extern struct acpi_rsdump_info acpi_rs_dump_general_flags[];
 #endif
 
 #endif				/* __ACRESRC_H__ */
diff --git a/drivers/acpi/acpica/acutils.h b/drivers/acpi/acpica/acutils.h
index 6e51d193c3eb..4e952111ca5a 100644
--- a/drivers/acpi/acpica/acutils.h
+++ b/drivers/acpi/acpica/acutils.h
@@ -483,39 +483,17 @@ acpi_ut_short_divide(u64 in_dividend,
 /*
  * utmisc
  */
-void ut_convert_backslashes(char *pathname);
-
 const char *acpi_ut_validate_exception(acpi_status status);
 
 u8 acpi_ut_is_pci_root_bridge(char *id);
 
 u8 acpi_ut_is_aml_table(struct acpi_table_header *table);
 
-acpi_status acpi_ut_allocate_owner_id(acpi_owner_id * owner_id);
-
-void acpi_ut_release_owner_id(acpi_owner_id * owner_id);
-
 acpi_status
 acpi_ut_walk_package_tree(union acpi_operand_object *source_object,
 			  void *target_object,
 			  acpi_pkg_callback walk_callback, void *context);
 
-void acpi_ut_strupr(char *src_string);
-
-void acpi_ut_strlwr(char *src_string);
-
-int acpi_ut_stricmp(char *string1, char *string2);
-
-void acpi_ut_print_string(char *string, u8 max_length);
-
-u8 acpi_ut_valid_acpi_name(u32 name);
-
-void acpi_ut_repair_name(char *name);
-
-u8 acpi_ut_valid_acpi_char(char character, u32 position);
-
-acpi_status acpi_ut_strtoul64(char *string, u32 base, u64 *ret_integer);
-
 /* Values for Base above (16=Hex, 10=Decimal) */
 
 #define ACPI_ANY_BASE        0
@@ -531,6 +509,13 @@ acpi_ut_display_init_pathname(u8 type,
 			      char *path);
 #endif
 
+/*
+ * utownerid - Support for Table/Method Owner IDs
+ */
+acpi_status acpi_ut_allocate_owner_id(acpi_owner_id * owner_id);
+
+void acpi_ut_release_owner_id(acpi_owner_id * owner_id);
+
 /*
  * utresrc
  */
@@ -556,6 +541,27 @@ u8 acpi_ut_get_resource_type(void *aml);
 acpi_status
 acpi_ut_get_resource_end_tag(union acpi_operand_object *obj_desc, u8 **end_tag);
 
+/*
+ * utstring - String and character utilities
+ */
+void acpi_ut_strupr(char *src_string);
+
+void acpi_ut_strlwr(char *src_string);
+
+int acpi_ut_stricmp(char *string1, char *string2);
+
+acpi_status acpi_ut_strtoul64(char *string, u32 base, u64 *ret_integer);
+
+void acpi_ut_print_string(char *string, u8 max_length);
+
+void ut_convert_backslashes(char *pathname);
+
+u8 acpi_ut_valid_acpi_name(u32 name);
+
+u8 acpi_ut_valid_acpi_char(char character, u32 position);
+
+void acpi_ut_repair_name(char *name);
+
 /*
  * utmutex - mutex support
  */
diff --git a/drivers/acpi/acpica/evhandler.c b/drivers/acpi/acpica/evhandler.c
new file mode 100644
index 000000000000..95e52585bb9b
--- /dev/null
+++ b/drivers/acpi/acpica/evhandler.c
@@ -0,0 +1,529 @@
+/******************************************************************************
+ *
+ * Module Name: evhandler - Support for Address Space handlers
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2012, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acevents.h"
+#include "acnamesp.h"
+#include "acinterp.h"
+
+#define _COMPONENT          ACPI_EVENTS
+ACPI_MODULE_NAME("evhandler")
+
+/* Local prototypes */
+static acpi_status
+acpi_ev_install_handler(acpi_handle obj_handle,
+			u32 level, void *context, void **return_value);
+
+/* These are the address spaces that will get default handlers */
+
+u8 acpi_gbl_default_address_spaces[ACPI_NUM_DEFAULT_SPACES] = {
+	ACPI_ADR_SPACE_SYSTEM_MEMORY,
+	ACPI_ADR_SPACE_SYSTEM_IO,
+	ACPI_ADR_SPACE_PCI_CONFIG,
+	ACPI_ADR_SPACE_DATA_TABLE
+};
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ev_install_region_handlers
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Installs the core subsystem default address space handlers.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ev_install_region_handlers(void)
+{
+	acpi_status status;
+	u32 i;
+
+	ACPI_FUNCTION_TRACE(ev_install_region_handlers);
+
+	status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+	if (ACPI_FAILURE(status)) {
+		return_ACPI_STATUS(status);
+	}
+
+	/*
+	 * All address spaces (PCI Config, EC, SMBus) are scope dependent and
+	 * registration must occur for a specific device.
+	 *
+	 * In the case of the system memory and IO address spaces there is
+	 * currently no device associated with the address space. For these we
+	 * use the root.
+	 *
+	 * We install the default PCI config space handler at the root so that
+	 * this space is immediately available even though the we have not
+	 * enumerated all the PCI Root Buses yet. This is to conform to the ACPI
+	 * specification which states that the PCI config space must be always
+	 * available -- even though we are nowhere near ready to find the PCI root
+	 * buses at this point.
+	 *
+	 * NOTE: We ignore AE_ALREADY_EXISTS because this means that a handler
+	 * has already been installed (via acpi_install_address_space_handler).
+	 * Similar for AE_SAME_HANDLER.
+	 */
+	for (i = 0; i < ACPI_NUM_DEFAULT_SPACES; i++) {
+		status = acpi_ev_install_space_handler(acpi_gbl_root_node,
+						       acpi_gbl_default_address_spaces
+						       [i],
+						       ACPI_DEFAULT_HANDLER,
+						       NULL, NULL);
+		switch (status) {
+		case AE_OK:
+		case AE_SAME_HANDLER:
+		case AE_ALREADY_EXISTS:
+
+			/* These exceptions are all OK */
+
+			status = AE_OK;
+			break;
+
+		default:
+
+			goto unlock_and_exit;
+		}
+	}
+
+      unlock_and_exit:
+	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+	return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ev_has_default_handler
+ *
+ * PARAMETERS:  node                - Namespace node for the device
+ *              space_id            - The address space ID
+ *
+ * RETURN:      TRUE if default handler is installed, FALSE otherwise
+ *
+ * DESCRIPTION: Check if the default handler is installed for the requested
+ *              space ID.
+ *
+ ******************************************************************************/
+
+u8
+acpi_ev_has_default_handler(struct acpi_namespace_node *node,
+			    acpi_adr_space_type space_id)
+{
+	union acpi_operand_object *obj_desc;
+	union acpi_operand_object *handler_obj;
+
+	/* Must have an existing internal object */
+
+	obj_desc = acpi_ns_get_attached_object(node);
+	if (obj_desc) {
+		handler_obj = obj_desc->device.handler;
+
+		/* Walk the linked list of handlers for this object */
+
+		while (handler_obj) {
+			if (handler_obj->address_space.space_id == space_id) {
+				if (handler_obj->address_space.handler_flags &
+				    ACPI_ADDR_HANDLER_DEFAULT_INSTALLED) {
+					return (TRUE);
+				}
+			}
+
+			handler_obj = handler_obj->address_space.next;
+		}
+	}
+
+	return (FALSE);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ev_install_handler
+ *
+ * PARAMETERS:  walk_namespace callback
+ *
+ * DESCRIPTION: This routine installs an address handler into objects that are
+ *              of type Region or Device.
+ *
+ *              If the Object is a Device, and the device has a handler of
+ *              the same type then the search is terminated in that branch.
+ *
+ *              This is because the existing handler is closer in proximity
+ *              to any more regions than the one we are trying to install.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ev_install_handler(acpi_handle obj_handle,
+			u32 level, void *context, void **return_value)
+{
+	union acpi_operand_object *handler_obj;
+	union acpi_operand_object *next_handler_obj;
+	union acpi_operand_object *obj_desc;
+	struct acpi_namespace_node *node;
+	acpi_status status;
+
+	ACPI_FUNCTION_NAME(ev_install_handler);
+
+	handler_obj = (union acpi_operand_object *)context;
+
+	/* Parameter validation */
+
+	if (!handler_obj) {
+		return (AE_OK);
+	}
+
+	/* Convert and validate the device handle */
+
+	node = acpi_ns_validate_handle(obj_handle);
+	if (!node) {
+		return (AE_BAD_PARAMETER);
+	}
+
+	/*
+	 * We only care about regions and objects that are allowed to have
+	 * address space handlers
+	 */
+	if ((node->type != ACPI_TYPE_DEVICE) &&
+	    (node->type != ACPI_TYPE_REGION) && (node != acpi_gbl_root_node)) {
+		return (AE_OK);
+	}
+
+	/* Check for an existing internal object */
+
+	obj_desc = acpi_ns_get_attached_object(node);
+	if (!obj_desc) {
+
+		/* No object, just exit */
+
+		return (AE_OK);
+	}
+
+	/* Devices are handled different than regions */
+
+	if (obj_desc->common.type == ACPI_TYPE_DEVICE) {
+
+		/* Check if this Device already has a handler for this address space */
+
+		next_handler_obj = obj_desc->device.handler;
+		while (next_handler_obj) {
+
+			/* Found a handler, is it for the same address space? */
+
+			if (next_handler_obj->address_space.space_id ==
+			    handler_obj->address_space.space_id) {
+				ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
+						  "Found handler for region [%s] in device %p(%p) "
+						  "handler %p\n",
+						  acpi_ut_get_region_name
+						  (handler_obj->address_space.
+						   space_id), obj_desc,
+						  next_handler_obj,
+						  handler_obj));
+
+				/*
+				 * Since the object we found it on was a device, then it
+				 * means that someone has already installed a handler for
+				 * the branch of the namespace from this device on. Just
+				 * bail out telling the walk routine to not traverse this
+				 * branch. This preserves the scoping rule for handlers.
+				 */
+				return (AE_CTRL_DEPTH);
+			}
+
+			/* Walk the linked list of handlers attached to this device */
+
+			next_handler_obj = next_handler_obj->address_space.next;
+		}
+
+		/*
+		 * As long as the device didn't have a handler for this space we
+		 * don't care about it. We just ignore it and proceed.
+		 */
+		return (AE_OK);
+	}
+
+	/* Object is a Region */
+
+	if (obj_desc->region.space_id != handler_obj->address_space.space_id) {
+
+		/* This region is for a different address space, just ignore it */
+
+		return (AE_OK);
+	}
+
+	/*
+	 * Now we have a region and it is for the handler's address space type.
+	 *
+	 * First disconnect region for any previous handler (if any)
+	 */
+	acpi_ev_detach_region(obj_desc, FALSE);
+
+	/* Connect the region to the new handler */
+
+	status = acpi_ev_attach_region(handler_obj, obj_desc, FALSE);
+	return (status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ev_install_space_handler
+ *
+ * PARAMETERS:  node            - Namespace node for the device
+ *              space_id        - The address space ID
+ *              handler         - Address of the handler
+ *              setup           - Address of the setup function
+ *              context         - Value passed to the handler on each access
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Install a handler for all op_regions of a given space_id.
+ *              Assumes namespace is locked
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ev_install_space_handler(struct acpi_namespace_node * node,
+			      acpi_adr_space_type space_id,
+			      acpi_adr_space_handler handler,
+			      acpi_adr_space_setup setup, void *context)
+{
+	union acpi_operand_object *obj_desc;
+	union acpi_operand_object *handler_obj;
+	acpi_status status;
+	acpi_object_type type;
+	u8 flags = 0;
+
+	ACPI_FUNCTION_TRACE(ev_install_space_handler);
+
+	/*
+	 * This registration is valid for only the types below and the root. This
+	 * is where the default handlers get placed.
+	 */
+	if ((node->type != ACPI_TYPE_DEVICE) &&
+	    (node->type != ACPI_TYPE_PROCESSOR) &&
+	    (node->type != ACPI_TYPE_THERMAL) && (node != acpi_gbl_root_node)) {
+		status = AE_BAD_PARAMETER;
+		goto unlock_and_exit;
+	}
+
+	if (handler == ACPI_DEFAULT_HANDLER) {
+		flags = ACPI_ADDR_HANDLER_DEFAULT_INSTALLED;
+
+		switch (space_id) {
+		case ACPI_ADR_SPACE_SYSTEM_MEMORY:
+			handler = acpi_ex_system_memory_space_handler;
+			setup = acpi_ev_system_memory_region_setup;
+			break;
+
+		case ACPI_ADR_SPACE_SYSTEM_IO:
+			handler = acpi_ex_system_io_space_handler;
+			setup = acpi_ev_io_space_region_setup;
+			break;
+
+		case ACPI_ADR_SPACE_PCI_CONFIG:
+			handler = acpi_ex_pci_config_space_handler;
+			setup = acpi_ev_pci_config_region_setup;
+			break;
+
+		case ACPI_ADR_SPACE_CMOS:
+			handler = acpi_ex_cmos_space_handler;
+			setup = acpi_ev_cmos_region_setup;
+			break;
+
+		case ACPI_ADR_SPACE_PCI_BAR_TARGET:
+			handler = acpi_ex_pci_bar_space_handler;
+			setup = acpi_ev_pci_bar_region_setup;
+			break;
+
+		case ACPI_ADR_SPACE_DATA_TABLE:
+			handler = acpi_ex_data_table_space_handler;
+			setup = NULL;
+			break;
+
+		default:
+			status = AE_BAD_PARAMETER;
+			goto unlock_and_exit;
+		}
+	}
+
+	/* If the caller hasn't specified a setup routine, use the default */
+
+	if (!setup) {
+		setup = acpi_ev_default_region_setup;
+	}
+
+	/* Check for an existing internal object */
+
+	obj_desc = acpi_ns_get_attached_object(node);
+	if (obj_desc) {
+		/*
+		 * The attached device object already exists. Make sure the handler
+		 * is not already installed.
+		 */
+		handler_obj = obj_desc->device.handler;
+
+		/* Walk the handler list for this device */
+
+		while (handler_obj) {
+
+			/* Same space_id indicates a handler already installed */
+
+			if (handler_obj->address_space.space_id == space_id) {
+				if (handler_obj->address_space.handler ==
+				    handler) {
+					/*
+					 * It is (relatively) OK to attempt to install the SAME
+					 * handler twice. This can easily happen with the
+					 * PCI_Config space.
+					 */
+					status = AE_SAME_HANDLER;
+					goto unlock_and_exit;
+				} else {
+					/* A handler is already installed */
+
+					status = AE_ALREADY_EXISTS;
+				}
+				goto unlock_and_exit;
+			}
+
+			/* Walk the linked list of handlers */
+
+			handler_obj = handler_obj->address_space.next;
+		}
+	} else {
+		ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
+				  "Creating object on Device %p while installing handler\n",
+				  node));
+
+		/* obj_desc does not exist, create one */
+
+		if (node->type == ACPI_TYPE_ANY) {
+			type = ACPI_TYPE_DEVICE;
+		} else {
+			type = node->type;
+		}
+
+		obj_desc = acpi_ut_create_internal_object(type);
+		if (!obj_desc) {
+			status = AE_NO_MEMORY;
+			goto unlock_and_exit;
+		}
+
+		/* Init new descriptor */
+
+		obj_desc->common.type = (u8)type;
+
+		/* Attach the new object to the Node */
+
+		status = acpi_ns_attach_object(node, obj_desc, type);
+
+		/* Remove local reference to the object */
+
+		acpi_ut_remove_reference(obj_desc);
+
+		if (ACPI_FAILURE(status)) {
+			goto unlock_and_exit;
+		}
+	}
+
+	ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
+			  "Installing address handler for region %s(%X) on Device %4.4s %p(%p)\n",
+			  acpi_ut_get_region_name(space_id), space_id,
+			  acpi_ut_get_node_name(node), node, obj_desc));
+
+	/*
+	 * Install the handler
+	 *
+	 * At this point there is no existing handler. Just allocate the object
+	 * for the handler and link it into the list.
+	 */
+	handler_obj =
+	    acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_ADDRESS_HANDLER);
+	if (!handler_obj) {
+		status = AE_NO_MEMORY;
+		goto unlock_and_exit;
+	}
+
+	/* Init handler obj */
+
+	handler_obj->address_space.space_id = (u8)space_id;
+	handler_obj->address_space.handler_flags = flags;
+	handler_obj->address_space.region_list = NULL;
+	handler_obj->address_space.node = node;
+	handler_obj->address_space.handler = handler;
+	handler_obj->address_space.context = context;
+	handler_obj->address_space.setup = setup;
+
+	/* Install at head of Device.address_space list */
+
+	handler_obj->address_space.next = obj_desc->device.handler;
+
+	/*
+	 * The Device object is the first reference on the handler_obj.
+	 * Each region that uses the handler adds a reference.
+	 */
+	obj_desc->device.handler = handler_obj;
+
+	/*
+	 * Walk the namespace finding all of the regions this
+	 * handler will manage.
+	 *
+	 * Start at the device and search the branch toward
+	 * the leaf nodes until either the leaf is encountered or
+	 * a device is detected that has an address handler of the
+	 * same type.
+	 *
+	 * In either case, back up and search down the remainder
+	 * of the branch
+	 */
+	status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, node, ACPI_UINT32_MAX,
+					ACPI_NS_WALK_UNLOCK,
+					acpi_ev_install_handler, NULL,
+					handler_obj, NULL);
+
+      unlock_and_exit:
+	return_ACPI_STATUS(status);
+}
diff --git a/drivers/acpi/acpica/evregion.c b/drivers/acpi/acpica/evregion.c
index 0cc6a16fedc7..d1fa91d0b5b1 100644
--- a/drivers/acpi/acpica/evregion.c
+++ b/drivers/acpi/acpica/evregion.c
@@ -1,6 +1,6 @@
 /******************************************************************************
  *
- * Module Name: evregion - ACPI address_space (op_region) handler dispatch
+ * Module Name: evregion - Operation Region support
  *
  *****************************************************************************/
 
@@ -50,10 +50,9 @@
 #define _COMPONENT          ACPI_EVENTS
 ACPI_MODULE_NAME("evregion")
 
+extern u8 acpi_gbl_default_address_spaces[];
+
 /* Local prototypes */
-static u8
-acpi_ev_has_default_handler(struct acpi_namespace_node *node,
-			    acpi_adr_space_type space_id);
 
 static void acpi_ev_orphan_ec_reg_method(void);
 
@@ -61,135 +60,6 @@ static acpi_status
 acpi_ev_reg_run(acpi_handle obj_handle,
 		u32 level, void *context, void **return_value);
 
-static acpi_status
-acpi_ev_install_handler(acpi_handle obj_handle,
-			u32 level, void *context, void **return_value);
-
-/* These are the address spaces that will get default handlers */
-
-#define ACPI_NUM_DEFAULT_SPACES     4
-
-static u8 acpi_gbl_default_address_spaces[ACPI_NUM_DEFAULT_SPACES] = {
-	ACPI_ADR_SPACE_SYSTEM_MEMORY,
-	ACPI_ADR_SPACE_SYSTEM_IO,
-	ACPI_ADR_SPACE_PCI_CONFIG,
-	ACPI_ADR_SPACE_DATA_TABLE
-};
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ev_install_region_handlers
- *
- * PARAMETERS:  None
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Installs the core subsystem default address space handlers.
- *
- ******************************************************************************/
-
-acpi_status acpi_ev_install_region_handlers(void)
-{
-	acpi_status status;
-	u32 i;
-
-	ACPI_FUNCTION_TRACE(ev_install_region_handlers);
-
-	status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
-	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
-	}
-
-	/*
-	 * All address spaces (PCI Config, EC, SMBus) are scope dependent and
-	 * registration must occur for a specific device.
-	 *
-	 * In the case of the system memory and IO address spaces there is
-	 * currently no device associated with the address space. For these we
-	 * use the root.
-	 *
-	 * We install the default PCI config space handler at the root so that
-	 * this space is immediately available even though the we have not
-	 * enumerated all the PCI Root Buses yet. This is to conform to the ACPI
-	 * specification which states that the PCI config space must be always
-	 * available -- even though we are nowhere near ready to find the PCI root
-	 * buses at this point.
-	 *
-	 * NOTE: We ignore AE_ALREADY_EXISTS because this means that a handler
-	 * has already been installed (via acpi_install_address_space_handler).
-	 * Similar for AE_SAME_HANDLER.
-	 */
-	for (i = 0; i < ACPI_NUM_DEFAULT_SPACES; i++) {
-		status = acpi_ev_install_space_handler(acpi_gbl_root_node,
-						       acpi_gbl_default_address_spaces
-						       [i],
-						       ACPI_DEFAULT_HANDLER,
-						       NULL, NULL);
-		switch (status) {
-		case AE_OK:
-		case AE_SAME_HANDLER:
-		case AE_ALREADY_EXISTS:
-
-			/* These exceptions are all OK */
-
-			status = AE_OK;
-			break;
-
-		default:
-
-			goto unlock_and_exit;
-		}
-	}
-
-      unlock_and_exit:
-	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
-	return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ev_has_default_handler
- *
- * PARAMETERS:  node                - Namespace node for the device
- *              space_id            - The address space ID
- *
- * RETURN:      TRUE if default handler is installed, FALSE otherwise
- *
- * DESCRIPTION: Check if the default handler is installed for the requested
- *              space ID.
- *
- ******************************************************************************/
-
-static u8
-acpi_ev_has_default_handler(struct acpi_namespace_node *node,
-			    acpi_adr_space_type space_id)
-{
-	union acpi_operand_object *obj_desc;
-	union acpi_operand_object *handler_obj;
-
-	/* Must have an existing internal object */
-
-	obj_desc = acpi_ns_get_attached_object(node);
-	if (obj_desc) {
-		handler_obj = obj_desc->device.handler;
-
-		/* Walk the linked list of handlers for this object */
-
-		while (handler_obj) {
-			if (handler_obj->address_space.space_id == space_id) {
-				if (handler_obj->address_space.handler_flags &
-				    ACPI_ADDR_HANDLER_DEFAULT_INSTALLED) {
-					return (TRUE);
-				}
-			}
-
-			handler_obj = handler_obj->address_space.next;
-		}
-	}
-
-	return (FALSE);
-}
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ev_initialize_op_regions
@@ -239,91 +109,6 @@ acpi_status acpi_ev_initialize_op_regions(void)
 	return_ACPI_STATUS(status);
 }
 
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ev_execute_reg_method
- *
- * PARAMETERS:  region_obj          - Region object
- *              function            - Passed to _REG: On (1) or Off (0)
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Execute _REG method for a region
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ev_execute_reg_method(union acpi_operand_object *region_obj, u32 function)
-{
-	struct acpi_evaluate_info *info;
-	union acpi_operand_object *args[3];
-	union acpi_operand_object *region_obj2;
-	acpi_status status;
-
-	ACPI_FUNCTION_TRACE(ev_execute_reg_method);
-
-	region_obj2 = acpi_ns_get_secondary_object(region_obj);
-	if (!region_obj2) {
-		return_ACPI_STATUS(AE_NOT_EXIST);
-	}
-
-	if (region_obj2->extra.method_REG == NULL) {
-		return_ACPI_STATUS(AE_OK);
-	}
-
-	/* Allocate and initialize the evaluation information block */
-
-	info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
-	if (!info) {
-		return_ACPI_STATUS(AE_NO_MEMORY);
-	}
-
-	info->prefix_node = region_obj2->extra.method_REG;
-	info->pathname = NULL;
-	info->parameters = args;
-	info->flags = ACPI_IGNORE_RETURN_VALUE;
-
-	/*
-	 * The _REG method has two arguments:
-	 *
-	 * arg0 - Integer:
-	 *  Operation region space ID Same value as region_obj->Region.space_id
-	 *
-	 * arg1 - Integer:
-	 *  connection status 1 for connecting the handler, 0 for disconnecting
-	 *  the handler (Passed as a parameter)
-	 */
-	args[0] =
-	    acpi_ut_create_integer_object((u64) region_obj->region.space_id);
-	if (!args[0]) {
-		status = AE_NO_MEMORY;
-		goto cleanup1;
-	}
-
-	args[1] = acpi_ut_create_integer_object((u64) function);
-	if (!args[1]) {
-		status = AE_NO_MEMORY;
-		goto cleanup2;
-	}
-
-	args[2] = NULL;		/* Terminate list */
-
-	/* Execute the method, no return value */
-
-	ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
-			(ACPI_TYPE_METHOD, info->prefix_node, NULL));
-
-	status = acpi_ns_evaluate(info);
-	acpi_ut_remove_reference(args[1]);
-
-      cleanup2:
-	acpi_ut_remove_reference(args[0]);
-
-      cleanup1:
-	ACPI_FREE(info);
-	return_ACPI_STATUS(status);
-}
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ev_address_space_dispatch
@@ -709,351 +494,86 @@ acpi_ev_attach_region(union acpi_operand_object *handler_obj,
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_ev_install_handler
- *
- * PARAMETERS:  walk_namespace callback
- *
- * DESCRIPTION: This routine installs an address handler into objects that are
- *              of type Region or Device.
- *
- *              If the Object is a Device, and the device has a handler of
- *              the same type then the search is terminated in that branch.
- *
- *              This is because the existing handler is closer in proximity
- *              to any more regions than the one we are trying to install.
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ev_install_handler(acpi_handle obj_handle,
-			u32 level, void *context, void **return_value)
-{
-	union acpi_operand_object *handler_obj;
-	union acpi_operand_object *next_handler_obj;
-	union acpi_operand_object *obj_desc;
-	struct acpi_namespace_node *node;
-	acpi_status status;
-
-	ACPI_FUNCTION_NAME(ev_install_handler);
-
-	handler_obj = (union acpi_operand_object *)context;
-
-	/* Parameter validation */
-
-	if (!handler_obj) {
-		return (AE_OK);
-	}
-
-	/* Convert and validate the device handle */
-
-	node = acpi_ns_validate_handle(obj_handle);
-	if (!node) {
-		return (AE_BAD_PARAMETER);
-	}
-
-	/*
-	 * We only care about regions and objects that are allowed to have
-	 * address space handlers
-	 */
-	if ((node->type != ACPI_TYPE_DEVICE) &&
-	    (node->type != ACPI_TYPE_REGION) && (node != acpi_gbl_root_node)) {
-		return (AE_OK);
-	}
-
-	/* Check for an existing internal object */
-
-	obj_desc = acpi_ns_get_attached_object(node);
-	if (!obj_desc) {
-
-		/* No object, just exit */
-
-		return (AE_OK);
-	}
-
-	/* Devices are handled different than regions */
-
-	if (obj_desc->common.type == ACPI_TYPE_DEVICE) {
-
-		/* Check if this Device already has a handler for this address space */
-
-		next_handler_obj = obj_desc->device.handler;
-		while (next_handler_obj) {
-
-			/* Found a handler, is it for the same address space? */
-
-			if (next_handler_obj->address_space.space_id ==
-			    handler_obj->address_space.space_id) {
-				ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
-						  "Found handler for region [%s] in device %p(%p) "
-						  "handler %p\n",
-						  acpi_ut_get_region_name
-						  (handler_obj->address_space.
-						   space_id), obj_desc,
-						  next_handler_obj,
-						  handler_obj));
-
-				/*
-				 * Since the object we found it on was a device, then it
-				 * means that someone has already installed a handler for
-				 * the branch of the namespace from this device on. Just
-				 * bail out telling the walk routine to not traverse this
-				 * branch. This preserves the scoping rule for handlers.
-				 */
-				return (AE_CTRL_DEPTH);
-			}
-
-			/* Walk the linked list of handlers attached to this device */
-
-			next_handler_obj = next_handler_obj->address_space.next;
-		}
-
-		/*
-		 * As long as the device didn't have a handler for this space we
-		 * don't care about it. We just ignore it and proceed.
-		 */
-		return (AE_OK);
-	}
-
-	/* Object is a Region */
-
-	if (obj_desc->region.space_id != handler_obj->address_space.space_id) {
-
-		/* This region is for a different address space, just ignore it */
-
-		return (AE_OK);
-	}
-
-	/*
-	 * Now we have a region and it is for the handler's address space type.
-	 *
-	 * First disconnect region for any previous handler (if any)
-	 */
-	acpi_ev_detach_region(obj_desc, FALSE);
-
-	/* Connect the region to the new handler */
-
-	status = acpi_ev_attach_region(handler_obj, obj_desc, FALSE);
-	return (status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ev_install_space_handler
+ * FUNCTION:    acpi_ev_execute_reg_method
  *
- * PARAMETERS:  node            - Namespace node for the device
- *              space_id        - The address space ID
- *              handler         - Address of the handler
- *              setup           - Address of the setup function
- *              context         - Value passed to the handler on each access
+ * PARAMETERS:  region_obj          - Region object
+ *              function            - Passed to _REG: On (1) or Off (0)
  *
  * RETURN:      Status
  *
- * DESCRIPTION: Install a handler for all op_regions of a given space_id.
- *              Assumes namespace is locked
+ * DESCRIPTION: Execute _REG method for a region
  *
  ******************************************************************************/
 
 acpi_status
-acpi_ev_install_space_handler(struct acpi_namespace_node * node,
-			      acpi_adr_space_type space_id,
-			      acpi_adr_space_handler handler,
-			      acpi_adr_space_setup setup, void *context)
+acpi_ev_execute_reg_method(union acpi_operand_object *region_obj, u32 function)
 {
-	union acpi_operand_object *obj_desc;
-	union acpi_operand_object *handler_obj;
+	struct acpi_evaluate_info *info;
+	union acpi_operand_object *args[3];
+	union acpi_operand_object *region_obj2;
 	acpi_status status;
-	acpi_object_type type;
-	u8 flags = 0;
 
-	ACPI_FUNCTION_TRACE(ev_install_space_handler);
-
-	/*
-	 * This registration is valid for only the types below and the root. This
-	 * is where the default handlers get placed.
-	 */
-	if ((node->type != ACPI_TYPE_DEVICE) &&
-	    (node->type != ACPI_TYPE_PROCESSOR) &&
-	    (node->type != ACPI_TYPE_THERMAL) && (node != acpi_gbl_root_node)) {
-		status = AE_BAD_PARAMETER;
-		goto unlock_and_exit;
-	}
+	ACPI_FUNCTION_TRACE(ev_execute_reg_method);
 
-	if (handler == ACPI_DEFAULT_HANDLER) {
-		flags = ACPI_ADDR_HANDLER_DEFAULT_INSTALLED;
-
-		switch (space_id) {
-		case ACPI_ADR_SPACE_SYSTEM_MEMORY:
-			handler = acpi_ex_system_memory_space_handler;
-			setup = acpi_ev_system_memory_region_setup;
-			break;
-
-		case ACPI_ADR_SPACE_SYSTEM_IO:
-			handler = acpi_ex_system_io_space_handler;
-			setup = acpi_ev_io_space_region_setup;
-			break;
-
-		case ACPI_ADR_SPACE_PCI_CONFIG:
-			handler = acpi_ex_pci_config_space_handler;
-			setup = acpi_ev_pci_config_region_setup;
-			break;
-
-		case ACPI_ADR_SPACE_CMOS:
-			handler = acpi_ex_cmos_space_handler;
-			setup = acpi_ev_cmos_region_setup;
-			break;
-
-		case ACPI_ADR_SPACE_PCI_BAR_TARGET:
-			handler = acpi_ex_pci_bar_space_handler;
-			setup = acpi_ev_pci_bar_region_setup;
-			break;
-
-		case ACPI_ADR_SPACE_DATA_TABLE:
-			handler = acpi_ex_data_table_space_handler;
-			setup = NULL;
-			break;
-
-		default:
-			status = AE_BAD_PARAMETER;
-			goto unlock_and_exit;
-		}
+	region_obj2 = acpi_ns_get_secondary_object(region_obj);
+	if (!region_obj2) {
+		return_ACPI_STATUS(AE_NOT_EXIST);
 	}
 
-	/* If the caller hasn't specified a setup routine, use the default */
-
-	if (!setup) {
-		setup = acpi_ev_default_region_setup;
+	if (region_obj2->extra.method_REG == NULL) {
+		return_ACPI_STATUS(AE_OK);
 	}
 
-	/* Check for an existing internal object */
-
-	obj_desc = acpi_ns_get_attached_object(node);
-	if (obj_desc) {
-		/*
-		 * The attached device object already exists. Make sure the handler
-		 * is not already installed.
-		 */
-		handler_obj = obj_desc->device.handler;
-
-		/* Walk the handler list for this device */
-
-		while (handler_obj) {
-
-			/* Same space_id indicates a handler already installed */
-
-			if (handler_obj->address_space.space_id == space_id) {
-				if (handler_obj->address_space.handler ==
-				    handler) {
-					/*
-					 * It is (relatively) OK to attempt to install the SAME
-					 * handler twice. This can easily happen with the
-					 * PCI_Config space.
-					 */
-					status = AE_SAME_HANDLER;
-					goto unlock_and_exit;
-				} else {
-					/* A handler is already installed */
-
-					status = AE_ALREADY_EXISTS;
-				}
-				goto unlock_and_exit;
-			}
-
-			/* Walk the linked list of handlers */
-
-			handler_obj = handler_obj->address_space.next;
-		}
-	} else {
-		ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
-				  "Creating object on Device %p while installing handler\n",
-				  node));
-
-		/* obj_desc does not exist, create one */
-
-		if (node->type == ACPI_TYPE_ANY) {
-			type = ACPI_TYPE_DEVICE;
-		} else {
-			type = node->type;
-		}
-
-		obj_desc = acpi_ut_create_internal_object(type);
-		if (!obj_desc) {
-			status = AE_NO_MEMORY;
-			goto unlock_and_exit;
-		}
-
-		/* Init new descriptor */
-
-		obj_desc->common.type = (u8) type;
-
-		/* Attach the new object to the Node */
-
-		status = acpi_ns_attach_object(node, obj_desc, type);
-
-		/* Remove local reference to the object */
-
-		acpi_ut_remove_reference(obj_desc);
+	/* Allocate and initialize the evaluation information block */
 
-		if (ACPI_FAILURE(status)) {
-			goto unlock_and_exit;
-		}
+	info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
+	if (!info) {
+		return_ACPI_STATUS(AE_NO_MEMORY);
 	}
 
-	ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
-			  "Installing address handler for region %s(%X) on Device %4.4s %p(%p)\n",
-			  acpi_ut_get_region_name(space_id), space_id,
-			  acpi_ut_get_node_name(node), node, obj_desc));
+	info->prefix_node = region_obj2->extra.method_REG;
+	info->pathname = NULL;
+	info->parameters = args;
+	info->flags = ACPI_IGNORE_RETURN_VALUE;
 
 	/*
-	 * Install the handler
+	 * The _REG method has two arguments:
+	 *
+	 * arg0 - Integer:
+	 *  Operation region space ID Same value as region_obj->Region.space_id
 	 *
-	 * At this point there is no existing handler. Just allocate the object
-	 * for the handler and link it into the list.
+	 * arg1 - Integer:
+	 *  connection status 1 for connecting the handler, 0 for disconnecting
+	 *  the handler (Passed as a parameter)
 	 */
-	handler_obj =
-	    acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_ADDRESS_HANDLER);
-	if (!handler_obj) {
+	args[0] =
+	    acpi_ut_create_integer_object((u64)region_obj->region.space_id);
+	if (!args[0]) {
 		status = AE_NO_MEMORY;
-		goto unlock_and_exit;
+		goto cleanup1;
 	}
 
-	/* Init handler obj */
+	args[1] = acpi_ut_create_integer_object((u64)function);
+	if (!args[1]) {
+		status = AE_NO_MEMORY;
+		goto cleanup2;
+	}
 
-	handler_obj->address_space.space_id = (u8) space_id;
-	handler_obj->address_space.handler_flags = flags;
-	handler_obj->address_space.region_list = NULL;
-	handler_obj->address_space.node = node;
-	handler_obj->address_space.handler = handler;
-	handler_obj->address_space.context = context;
-	handler_obj->address_space.setup = setup;
+	args[2] = NULL;		/* Terminate list */
 
-	/* Install at head of Device.address_space list */
+	/* Execute the method, no return value */
 
-	handler_obj->address_space.next = obj_desc->device.handler;
+	ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
+			(ACPI_TYPE_METHOD, info->prefix_node, NULL));
 
-	/*
-	 * The Device object is the first reference on the handler_obj.
-	 * Each region that uses the handler adds a reference.
-	 */
-	obj_desc->device.handler = handler_obj;
+	status = acpi_ns_evaluate(info);
+	acpi_ut_remove_reference(args[1]);
 
-	/*
-	 * Walk the namespace finding all of the regions this
-	 * handler will manage.
-	 *
-	 * Start at the device and search the branch toward
-	 * the leaf nodes until either the leaf is encountered or
-	 * a device is detected that has an address handler of the
-	 * same type.
-	 *
-	 * In either case, back up and search down the remainder
-	 * of the branch
-	 */
-	status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, node, ACPI_UINT32_MAX,
-					ACPI_NS_WALK_UNLOCK,
-					acpi_ev_install_handler, NULL,
-					handler_obj, NULL);
+      cleanup2:
+	acpi_ut_remove_reference(args[0]);
 
-      unlock_and_exit:
+      cleanup1:
+	ACPI_FREE(info);
 	return_ACPI_STATUS(status);
 }
 
diff --git a/drivers/acpi/acpica/nspredef.c b/drivers/acpi/acpica/nspredef.c
index 1f0e93401436..909520923fbe 100644
--- a/drivers/acpi/acpica/nspredef.c
+++ b/drivers/acpi/acpica/nspredef.c
@@ -72,27 +72,6 @@ ACPI_MODULE_NAME("nspredef")
  *
  ******************************************************************************/
 /* Local prototypes */
-static acpi_status
-acpi_ns_check_package(struct acpi_predefined_data *data,
-		      union acpi_operand_object **return_object_ptr);
-
-static acpi_status
-acpi_ns_check_package_list(struct acpi_predefined_data *data,
-			   const union acpi_predefined_info *package,
-			   union acpi_operand_object **elements, u32 count);
-
-static acpi_status
-acpi_ns_check_package_elements(struct acpi_predefined_data *data,
-			       union acpi_operand_object **elements,
-			       u8 type1,
-			       u32 count1,
-			       u8 type2, u32 count2, u32 start_index);
-
-static acpi_status
-acpi_ns_check_object_type(struct acpi_predefined_data *data,
-			  union acpi_operand_object **return_object_ptr,
-			  u32 expected_btypes, u32 package_index);
-
 static acpi_status
 acpi_ns_check_reference(struct acpi_predefined_data *data,
 			union acpi_operand_object *return_object);
@@ -405,564 +384,6 @@ const union acpi_predefined_info *acpi_ns_check_for_predefined_name(struct
 	return (NULL);		/* Not found */
 }
 
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ns_check_package
- *
- * PARAMETERS:  data            - Pointer to validation data structure
- *              return_object_ptr - Pointer to the object returned from the
- *                                evaluation of a method or object
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Check a returned package object for the correct count and
- *              correct type of all sub-objects.
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ns_check_package(struct acpi_predefined_data *data,
-		      union acpi_operand_object **return_object_ptr)
-{
-	union acpi_operand_object *return_object = *return_object_ptr;
-	const union acpi_predefined_info *package;
-	union acpi_operand_object **elements;
-	acpi_status status = AE_OK;
-	u32 expected_count;
-	u32 count;
-	u32 i;
-
-	ACPI_FUNCTION_NAME(ns_check_package);
-
-	/* The package info for this name is in the next table entry */
-
-	package = data->predefined + 1;
-
-	ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
-			  "%s Validating return Package of Type %X, Count %X\n",
-			  data->pathname, package->ret_info.type,
-			  return_object->package.count));
-
-	/*
-	 * For variable-length Packages, we can safely remove all embedded
-	 * and trailing NULL package elements
-	 */
-	acpi_ns_remove_null_elements(data, package->ret_info.type,
-				     return_object);
-
-	/* Extract package count and elements array */
-
-	elements = return_object->package.elements;
-	count = return_object->package.count;
-
-	/* The package must have at least one element, else invalid */
-
-	if (!count) {
-		ACPI_WARN_PREDEFINED((AE_INFO, data->pathname, data->node_flags,
-				      "Return Package has no elements (empty)"));
-
-		return (AE_AML_OPERAND_VALUE);
-	}
-
-	/*
-	 * Decode the type of the expected package contents
-	 *
-	 * PTYPE1 packages contain no subpackages
-	 * PTYPE2 packages contain sub-packages
-	 */
-	switch (package->ret_info.type) {
-	case ACPI_PTYPE1_FIXED:
-
-		/*
-		 * The package count is fixed and there are no sub-packages
-		 *
-		 * If package is too small, exit.
-		 * If package is larger than expected, issue warning but continue
-		 */
-		expected_count =
-		    package->ret_info.count1 + package->ret_info.count2;
-		if (count < expected_count) {
-			goto package_too_small;
-		} else if (count > expected_count) {
-			ACPI_DEBUG_PRINT((ACPI_DB_REPAIR,
-					  "%s: Return Package is larger than needed - "
-					  "found %u, expected %u\n",
-					  data->pathname, count,
-					  expected_count));
-		}
-
-		/* Validate all elements of the returned package */
-
-		status = acpi_ns_check_package_elements(data, elements,
-							package->ret_info.
-							object_type1,
-							package->ret_info.
-							count1,
-							package->ret_info.
-							object_type2,
-							package->ret_info.
-							count2, 0);
-		break;
-
-	case ACPI_PTYPE1_VAR:
-
-		/*
-		 * The package count is variable, there are no sub-packages, and all
-		 * elements must be of the same type
-		 */
-		for (i = 0; i < count; i++) {
-			status = acpi_ns_check_object_type(data, elements,
-							   package->ret_info.
-							   object_type1, i);
-			if (ACPI_FAILURE(status)) {
-				return (status);
-			}
-			elements++;
-		}
-		break;
-
-	case ACPI_PTYPE1_OPTION:
-
-		/*
-		 * The package count is variable, there are no sub-packages. There are
-		 * a fixed number of required elements, and a variable number of
-		 * optional elements.
-		 *
-		 * Check if package is at least as large as the minimum required
-		 */
-		expected_count = package->ret_info3.count;
-		if (count < expected_count) {
-			goto package_too_small;
-		}
-
-		/* Variable number of sub-objects */
-
-		for (i = 0; i < count; i++) {
-			if (i < package->ret_info3.count) {
-
-				/* These are the required package elements (0, 1, or 2) */
-
-				status =
-				    acpi_ns_check_object_type(data, elements,
-							      package->
-							      ret_info3.
-							      object_type[i],
-							      i);
-				if (ACPI_FAILURE(status)) {
-					return (status);
-				}
-			} else {
-				/* These are the optional package elements */
-
-				status =
-				    acpi_ns_check_object_type(data, elements,
-							      package->
-							      ret_info3.
-							      tail_object_type,
-							      i);
-				if (ACPI_FAILURE(status)) {
-					return (status);
-				}
-			}
-			elements++;
-		}
-		break;
-
-	case ACPI_PTYPE2_REV_FIXED:
-
-		/* First element is the (Integer) revision */
-
-		status = acpi_ns_check_object_type(data, elements,
-						   ACPI_RTYPE_INTEGER, 0);
-		if (ACPI_FAILURE(status)) {
-			return (status);
-		}
-
-		elements++;
-		count--;
-
-		/* Examine the sub-packages */
-
-		status =
-		    acpi_ns_check_package_list(data, package, elements, count);
-		break;
-
-	case ACPI_PTYPE2_PKG_COUNT:
-
-		/* First element is the (Integer) count of sub-packages to follow */
-
-		status = acpi_ns_check_object_type(data, elements,
-						   ACPI_RTYPE_INTEGER, 0);
-		if (ACPI_FAILURE(status)) {
-			return (status);
-		}
-
-		/*
-		 * Count cannot be larger than the parent package length, but allow it
-		 * to be smaller. The >= accounts for the Integer above.
-		 */
-		expected_count = (u32) (*elements)->integer.value;
-		if (expected_count >= count) {
-			goto package_too_small;
-		}
-
-		count = expected_count;
-		elements++;
-
-		/* Examine the sub-packages */
-
-		status =
-		    acpi_ns_check_package_list(data, package, elements, count);
-		break;
-
-	case ACPI_PTYPE2:
-	case ACPI_PTYPE2_FIXED:
-	case ACPI_PTYPE2_MIN:
-	case ACPI_PTYPE2_COUNT:
-	case ACPI_PTYPE2_FIX_VAR:
-
-		/*
-		 * These types all return a single Package that consists of a
-		 * variable number of sub-Packages.
-		 *
-		 * First, ensure that the first element is a sub-Package. If not,
-		 * the BIOS may have incorrectly returned the object as a single
-		 * package instead of a Package of Packages (a common error if
-		 * there is only one entry). We may be able to repair this by
-		 * wrapping the returned Package with a new outer Package.
-		 */
-		if (*elements
-		    && ((*elements)->common.type != ACPI_TYPE_PACKAGE)) {
-
-			/* Create the new outer package and populate it */
-
-			status =
-			    acpi_ns_wrap_with_package(data, return_object,
-						      return_object_ptr);
-			if (ACPI_FAILURE(status)) {
-				return (status);
-			}
-
-			/* Update locals to point to the new package (of 1 element) */
-
-			return_object = *return_object_ptr;
-			elements = return_object->package.elements;
-			count = 1;
-		}
-
-		/* Examine the sub-packages */
-
-		status =
-		    acpi_ns_check_package_list(data, package, elements, count);
-		break;
-
-	default:
-
-		/* Should not get here if predefined info table is correct */
-
-		ACPI_WARN_PREDEFINED((AE_INFO, data->pathname, data->node_flags,
-				      "Invalid internal return type in table entry: %X",
-				      package->ret_info.type));
-
-		return (AE_AML_INTERNAL);
-	}
-
-	return (status);
-
-package_too_small:
-
-	/* Error exit for the case with an incorrect package count */
-
-	ACPI_WARN_PREDEFINED((AE_INFO, data->pathname, data->node_flags,
-			      "Return Package is too small - found %u elements, expected %u",
-			      count, expected_count));
-
-	return (AE_AML_OPERAND_VALUE);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ns_check_package_list
- *
- * PARAMETERS:  data            - Pointer to validation data structure
- *              package         - Pointer to package-specific info for method
- *              elements        - Element list of parent package. All elements
- *                                of this list should be of type Package.
- *              count           - Count of subpackages
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Examine a list of subpackages
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ns_check_package_list(struct acpi_predefined_data *data,
-			   const union acpi_predefined_info *package,
-			   union acpi_operand_object **elements, u32 count)
-{
-	union acpi_operand_object *sub_package;
-	union acpi_operand_object **sub_elements;
-	acpi_status status;
-	u32 expected_count;
-	u32 i;
-	u32 j;
-
-	/*
-	 * Validate each sub-Package in the parent Package
-	 *
-	 * NOTE: assumes list of sub-packages contains no NULL elements.
-	 * Any NULL elements should have been removed by earlier call
-	 * to acpi_ns_remove_null_elements.
-	 */
-	for (i = 0; i < count; i++) {
-		sub_package = *elements;
-		sub_elements = sub_package->package.elements;
-		data->parent_package = sub_package;
-
-		/* Each sub-object must be of type Package */
-
-		status = acpi_ns_check_object_type(data, &sub_package,
-						   ACPI_RTYPE_PACKAGE, i);
-		if (ACPI_FAILURE(status)) {
-			return (status);
-		}
-
-		/* Examine the different types of expected sub-packages */
-
-		data->parent_package = sub_package;
-		switch (package->ret_info.type) {
-		case ACPI_PTYPE2:
-		case ACPI_PTYPE2_PKG_COUNT:
-		case ACPI_PTYPE2_REV_FIXED:
-
-			/* Each subpackage has a fixed number of elements */
-
-			expected_count =
-			    package->ret_info.count1 + package->ret_info.count2;
-			if (sub_package->package.count < expected_count) {
-				goto package_too_small;
-			}
-
-			status =
-			    acpi_ns_check_package_elements(data, sub_elements,
-							   package->ret_info.
-							   object_type1,
-							   package->ret_info.
-							   count1,
-							   package->ret_info.
-							   object_type2,
-							   package->ret_info.
-							   count2, 0);
-			if (ACPI_FAILURE(status)) {
-				return (status);
-			}
-			break;
-
-		case ACPI_PTYPE2_FIX_VAR:
-			/*
-			 * Each subpackage has a fixed number of elements and an
-			 * optional element
-			 */
-			expected_count =
-			    package->ret_info.count1 + package->ret_info.count2;
-			if (sub_package->package.count < expected_count) {
-				goto package_too_small;
-			}
-
-			status =
-			    acpi_ns_check_package_elements(data, sub_elements,
-							   package->ret_info.
-							   object_type1,
-							   package->ret_info.
-							   count1,
-							   package->ret_info.
-							   object_type2,
-							   sub_package->package.
-							   count -
-							   package->ret_info.
-							   count1, 0);
-			if (ACPI_FAILURE(status)) {
-				return (status);
-			}
-			break;
-
-		case ACPI_PTYPE2_FIXED:
-
-			/* Each sub-package has a fixed length */
-
-			expected_count = package->ret_info2.count;
-			if (sub_package->package.count < expected_count) {
-				goto package_too_small;
-			}
-
-			/* Check the type of each sub-package element */
-
-			for (j = 0; j < expected_count; j++) {
-				status =
-				    acpi_ns_check_object_type(data,
-							      &sub_elements[j],
-							      package->
-							      ret_info2.
-							      object_type[j],
-							      j);
-				if (ACPI_FAILURE(status)) {
-					return (status);
-				}
-			}
-			break;
-
-		case ACPI_PTYPE2_MIN:
-
-			/* Each sub-package has a variable but minimum length */
-
-			expected_count = package->ret_info.count1;
-			if (sub_package->package.count < expected_count) {
-				goto package_too_small;
-			}
-
-			/* Check the type of each sub-package element */
-
-			status =
-			    acpi_ns_check_package_elements(data, sub_elements,
-							   package->ret_info.
-							   object_type1,
-							   sub_package->package.
-							   count, 0, 0, 0);
-			if (ACPI_FAILURE(status)) {
-				return (status);
-			}
-			break;
-
-		case ACPI_PTYPE2_COUNT:
-
-			/*
-			 * First element is the (Integer) count of elements, including
-			 * the count field (the ACPI name is num_elements)
-			 */
-			status = acpi_ns_check_object_type(data, sub_elements,
-							   ACPI_RTYPE_INTEGER,
-							   0);
-			if (ACPI_FAILURE(status)) {
-				return (status);
-			}
-
-			/*
-			 * Make sure package is large enough for the Count and is
-			 * is as large as the minimum size
-			 */
-			expected_count = (u32)(*sub_elements)->integer.value;
-			if (sub_package->package.count < expected_count) {
-				goto package_too_small;
-			}
-			if (sub_package->package.count <
-			    package->ret_info.count1) {
-				expected_count = package->ret_info.count1;
-				goto package_too_small;
-			}
-			if (expected_count == 0) {
-				/*
-				 * Either the num_entries element was originally zero or it was
-				 * a NULL element and repaired to an Integer of value zero.
-				 * In either case, repair it by setting num_entries to be the
-				 * actual size of the subpackage.
-				 */
-				expected_count = sub_package->package.count;
-				(*sub_elements)->integer.value = expected_count;
-			}
-
-			/* Check the type of each sub-package element */
-
-			status =
-			    acpi_ns_check_package_elements(data,
-							   (sub_elements + 1),
-							   package->ret_info.
-							   object_type1,
-							   (expected_count - 1),
-							   0, 0, 1);
-			if (ACPI_FAILURE(status)) {
-				return (status);
-			}
-			break;
-
-		default:	/* Should not get here, type was validated by caller */
-
-			return (AE_AML_INTERNAL);
-		}
-
-		elements++;
-	}
-
-	return (AE_OK);
-
-package_too_small:
-
-	/* The sub-package count was smaller than required */
-
-	ACPI_WARN_PREDEFINED((AE_INFO, data->pathname, data->node_flags,
-			      "Return Sub-Package[%u] is too small - found %u elements, expected %u",
-			      i, sub_package->package.count, expected_count));
-
-	return (AE_AML_OPERAND_VALUE);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ns_check_package_elements
- *
- * PARAMETERS:  data            - Pointer to validation data structure
- *              elements        - Pointer to the package elements array
- *              type1           - Object type for first group
- *              count1          - Count for first group
- *              type2           - Object type for second group
- *              count2          - Count for second group
- *              start_index     - Start of the first group of elements
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Check that all elements of a package are of the correct object
- *              type. Supports up to two groups of different object types.
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ns_check_package_elements(struct acpi_predefined_data *data,
-			       union acpi_operand_object **elements,
-			       u8 type1,
-			       u32 count1,
-			       u8 type2, u32 count2, u32 start_index)
-{
-	union acpi_operand_object **this_element = elements;
-	acpi_status status;
-	u32 i;
-
-	/*
-	 * Up to two groups of package elements are supported by the data
-	 * structure. All elements in each group must be of the same type.
-	 * The second group can have a count of zero.
-	 */
-	for (i = 0; i < count1; i++) {
-		status = acpi_ns_check_object_type(data, this_element,
-						   type1, i + start_index);
-		if (ACPI_FAILURE(status)) {
-			return (status);
-		}
-		this_element++;
-	}
-
-	for (i = 0; i < count2; i++) {
-		status = acpi_ns_check_object_type(data, this_element,
-						   type2,
-						   (i + count1 + start_index));
-		if (ACPI_FAILURE(status)) {
-			return (status);
-		}
-		this_element++;
-	}
-
-	return (AE_OK);
-}
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ns_check_object_type
@@ -982,7 +403,7 @@ acpi_ns_check_package_elements(struct acpi_predefined_data *data,
  *
  ******************************************************************************/
 
-static acpi_status
+acpi_status
 acpi_ns_check_object_type(struct acpi_predefined_data *data,
 			  union acpi_operand_object **return_object_ptr,
 			  u32 expected_btypes, u32 package_index)
diff --git a/drivers/acpi/acpica/nsprepkg.c b/drivers/acpi/acpica/nsprepkg.c
new file mode 100644
index 000000000000..c27be70f69bf
--- /dev/null
+++ b/drivers/acpi/acpica/nsprepkg.c
@@ -0,0 +1,621 @@
+/******************************************************************************
+ *
+ * Module Name: nsprepkg - Validation of package objects for predefined names
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2012, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acnamesp.h"
+#include "acpredef.h"
+
+#define _COMPONENT          ACPI_NAMESPACE
+ACPI_MODULE_NAME("nsprepkg")
+
+/* Local prototypes */
+static acpi_status
+acpi_ns_check_package_list(struct acpi_predefined_data *data,
+			   const union acpi_predefined_info *package,
+			   union acpi_operand_object **elements, u32 count);
+
+static acpi_status
+acpi_ns_check_package_elements(struct acpi_predefined_data *data,
+			       union acpi_operand_object **elements,
+			       u8 type1,
+			       u32 count1,
+			       u8 type2, u32 count2, u32 start_index);
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_check_package
+ *
+ * PARAMETERS:  data                - Pointer to validation data structure
+ *              return_object_ptr   - Pointer to the object returned from the
+ *                                    evaluation of a method or object
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Check a returned package object for the correct count and
+ *              correct type of all sub-objects.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_check_package(struct acpi_predefined_data *data,
+		      union acpi_operand_object **return_object_ptr)
+{
+	union acpi_operand_object *return_object = *return_object_ptr;
+	const union acpi_predefined_info *package;
+	union acpi_operand_object **elements;
+	acpi_status status = AE_OK;
+	u32 expected_count;
+	u32 count;
+	u32 i;
+
+	ACPI_FUNCTION_NAME(ns_check_package);
+
+	/* The package info for this name is in the next table entry */
+
+	package = data->predefined + 1;
+
+	ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
+			  "%s Validating return Package of Type %X, Count %X\n",
+			  data->pathname, package->ret_info.type,
+			  return_object->package.count));
+
+	/*
+	 * For variable-length Packages, we can safely remove all embedded
+	 * and trailing NULL package elements
+	 */
+	acpi_ns_remove_null_elements(data, package->ret_info.type,
+				     return_object);
+
+	/* Extract package count and elements array */
+
+	elements = return_object->package.elements;
+	count = return_object->package.count;
+
+	/* The package must have at least one element, else invalid */
+
+	if (!count) {
+		ACPI_WARN_PREDEFINED((AE_INFO, data->pathname, data->node_flags,
+				      "Return Package has no elements (empty)"));
+
+		return (AE_AML_OPERAND_VALUE);
+	}
+
+	/*
+	 * Decode the type of the expected package contents
+	 *
+	 * PTYPE1 packages contain no subpackages
+	 * PTYPE2 packages contain sub-packages
+	 */
+	switch (package->ret_info.type) {
+	case ACPI_PTYPE1_FIXED:
+
+		/*
+		 * The package count is fixed and there are no sub-packages
+		 *
+		 * If package is too small, exit.
+		 * If package is larger than expected, issue warning but continue
+		 */
+		expected_count =
+		    package->ret_info.count1 + package->ret_info.count2;
+		if (count < expected_count) {
+			goto package_too_small;
+		} else if (count > expected_count) {
+			ACPI_DEBUG_PRINT((ACPI_DB_REPAIR,
+					  "%s: Return Package is larger than needed - "
+					  "found %u, expected %u\n",
+					  data->pathname, count,
+					  expected_count));
+		}
+
+		/* Validate all elements of the returned package */
+
+		status = acpi_ns_check_package_elements(data, elements,
+							package->ret_info.
+							object_type1,
+							package->ret_info.
+							count1,
+							package->ret_info.
+							object_type2,
+							package->ret_info.
+							count2, 0);
+		break;
+
+	case ACPI_PTYPE1_VAR:
+
+		/*
+		 * The package count is variable, there are no sub-packages, and all
+		 * elements must be of the same type
+		 */
+		for (i = 0; i < count; i++) {
+			status = acpi_ns_check_object_type(data, elements,
+							   package->ret_info.
+							   object_type1, i);
+			if (ACPI_FAILURE(status)) {
+				return (status);
+			}
+			elements++;
+		}
+		break;
+
+	case ACPI_PTYPE1_OPTION:
+
+		/*
+		 * The package count is variable, there are no sub-packages. There are
+		 * a fixed number of required elements, and a variable number of
+		 * optional elements.
+		 *
+		 * Check if package is at least as large as the minimum required
+		 */
+		expected_count = package->ret_info3.count;
+		if (count < expected_count) {
+			goto package_too_small;
+		}
+
+		/* Variable number of sub-objects */
+
+		for (i = 0; i < count; i++) {
+			if (i < package->ret_info3.count) {
+
+				/* These are the required package elements (0, 1, or 2) */
+
+				status =
+				    acpi_ns_check_object_type(data, elements,
+							      package->
+							      ret_info3.
+							      object_type[i],
+							      i);
+				if (ACPI_FAILURE(status)) {
+					return (status);
+				}
+			} else {
+				/* These are the optional package elements */
+
+				status =
+				    acpi_ns_check_object_type(data, elements,
+							      package->
+							      ret_info3.
+							      tail_object_type,
+							      i);
+				if (ACPI_FAILURE(status)) {
+					return (status);
+				}
+			}
+			elements++;
+		}
+		break;
+
+	case ACPI_PTYPE2_REV_FIXED:
+
+		/* First element is the (Integer) revision */
+
+		status = acpi_ns_check_object_type(data, elements,
+						   ACPI_RTYPE_INTEGER, 0);
+		if (ACPI_FAILURE(status)) {
+			return (status);
+		}
+
+		elements++;
+		count--;
+
+		/* Examine the sub-packages */
+
+		status =
+		    acpi_ns_check_package_list(data, package, elements, count);
+		break;
+
+	case ACPI_PTYPE2_PKG_COUNT:
+
+		/* First element is the (Integer) count of sub-packages to follow */
+
+		status = acpi_ns_check_object_type(data, elements,
+						   ACPI_RTYPE_INTEGER, 0);
+		if (ACPI_FAILURE(status)) {
+			return (status);
+		}
+
+		/*
+		 * Count cannot be larger than the parent package length, but allow it
+		 * to be smaller. The >= accounts for the Integer above.
+		 */
+		expected_count = (u32)(*elements)->integer.value;
+		if (expected_count >= count) {
+			goto package_too_small;
+		}
+
+		count = expected_count;
+		elements++;
+
+		/* Examine the sub-packages */
+
+		status =
+		    acpi_ns_check_package_list(data, package, elements, count);
+		break;
+
+	case ACPI_PTYPE2:
+	case ACPI_PTYPE2_FIXED:
+	case ACPI_PTYPE2_MIN:
+	case ACPI_PTYPE2_COUNT:
+	case ACPI_PTYPE2_FIX_VAR:
+
+		/*
+		 * These types all return a single Package that consists of a
+		 * variable number of sub-Packages.
+		 *
+		 * First, ensure that the first element is a sub-Package. If not,
+		 * the BIOS may have incorrectly returned the object as a single
+		 * package instead of a Package of Packages (a common error if
+		 * there is only one entry). We may be able to repair this by
+		 * wrapping the returned Package with a new outer Package.
+		 */
+		if (*elements
+		    && ((*elements)->common.type != ACPI_TYPE_PACKAGE)) {
+
+			/* Create the new outer package and populate it */
+
+			status =
+			    acpi_ns_wrap_with_package(data, return_object,
+						      return_object_ptr);
+			if (ACPI_FAILURE(status)) {
+				return (status);
+			}
+
+			/* Update locals to point to the new package (of 1 element) */
+
+			return_object = *return_object_ptr;
+			elements = return_object->package.elements;
+			count = 1;
+		}
+
+		/* Examine the sub-packages */
+
+		status =
+		    acpi_ns_check_package_list(data, package, elements, count);
+		break;
+
+	default:
+
+		/* Should not get here if predefined info table is correct */
+
+		ACPI_WARN_PREDEFINED((AE_INFO, data->pathname, data->node_flags,
+				      "Invalid internal return type in table entry: %X",
+				      package->ret_info.type));
+
+		return (AE_AML_INTERNAL);
+	}
+
+	return (status);
+
+      package_too_small:
+
+	/* Error exit for the case with an incorrect package count */
+
+	ACPI_WARN_PREDEFINED((AE_INFO, data->pathname, data->node_flags,
+			      "Return Package is too small - found %u elements, expected %u",
+			      count, expected_count));
+
+	return (AE_AML_OPERAND_VALUE);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_check_package_list
+ *
+ * PARAMETERS:  data            - Pointer to validation data structure
+ *              package         - Pointer to package-specific info for method
+ *              elements        - Element list of parent package. All elements
+ *                                of this list should be of type Package.
+ *              count           - Count of subpackages
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Examine a list of subpackages
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ns_check_package_list(struct acpi_predefined_data *data,
+			   const union acpi_predefined_info *package,
+			   union acpi_operand_object **elements, u32 count)
+{
+	union acpi_operand_object *sub_package;
+	union acpi_operand_object **sub_elements;
+	acpi_status status;
+	u32 expected_count;
+	u32 i;
+	u32 j;
+
+	/*
+	 * Validate each sub-Package in the parent Package
+	 *
+	 * NOTE: assumes list of sub-packages contains no NULL elements.
+	 * Any NULL elements should have been removed by earlier call
+	 * to acpi_ns_remove_null_elements.
+	 */
+	for (i = 0; i < count; i++) {
+		sub_package = *elements;
+		sub_elements = sub_package->package.elements;
+		data->parent_package = sub_package;
+
+		/* Each sub-object must be of type Package */
+
+		status = acpi_ns_check_object_type(data, &sub_package,
+						   ACPI_RTYPE_PACKAGE, i);
+		if (ACPI_FAILURE(status)) {
+			return (status);
+		}
+
+		/* Examine the different types of expected sub-packages */
+
+		data->parent_package = sub_package;
+		switch (package->ret_info.type) {
+		case ACPI_PTYPE2:
+		case ACPI_PTYPE2_PKG_COUNT:
+		case ACPI_PTYPE2_REV_FIXED:
+
+			/* Each subpackage has a fixed number of elements */
+
+			expected_count =
+			    package->ret_info.count1 + package->ret_info.count2;
+			if (sub_package->package.count < expected_count) {
+				goto package_too_small;
+			}
+
+			status =
+			    acpi_ns_check_package_elements(data, sub_elements,
+							   package->ret_info.
+							   object_type1,
+							   package->ret_info.
+							   count1,
+							   package->ret_info.
+							   object_type2,
+							   package->ret_info.
+							   count2, 0);
+			if (ACPI_FAILURE(status)) {
+				return (status);
+			}
+			break;
+
+		case ACPI_PTYPE2_FIX_VAR:
+			/*
+			 * Each subpackage has a fixed number of elements and an
+			 * optional element
+			 */
+			expected_count =
+			    package->ret_info.count1 + package->ret_info.count2;
+			if (sub_package->package.count < expected_count) {
+				goto package_too_small;
+			}
+
+			status =
+			    acpi_ns_check_package_elements(data, sub_elements,
+							   package->ret_info.
+							   object_type1,
+							   package->ret_info.
+							   count1,
+							   package->ret_info.
+							   object_type2,
+							   sub_package->package.
+							   count -
+							   package->ret_info.
+							   count1, 0);
+			if (ACPI_FAILURE(status)) {
+				return (status);
+			}
+			break;
+
+		case ACPI_PTYPE2_FIXED:
+
+			/* Each sub-package has a fixed length */
+
+			expected_count = package->ret_info2.count;
+			if (sub_package->package.count < expected_count) {
+				goto package_too_small;
+			}
+
+			/* Check the type of each sub-package element */
+
+			for (j = 0; j < expected_count; j++) {
+				status =
+				    acpi_ns_check_object_type(data,
+							      &sub_elements[j],
+							      package->
+							      ret_info2.
+							      object_type[j],
+							      j);
+				if (ACPI_FAILURE(status)) {
+					return (status);
+				}
+			}
+			break;
+
+		case ACPI_PTYPE2_MIN:
+
+			/* Each sub-package has a variable but minimum length */
+
+			expected_count = package->ret_info.count1;
+			if (sub_package->package.count < expected_count) {
+				goto package_too_small;
+			}
+
+			/* Check the type of each sub-package element */
+
+			status =
+			    acpi_ns_check_package_elements(data, sub_elements,
+							   package->ret_info.
+							   object_type1,
+							   sub_package->package.
+							   count, 0, 0, 0);
+			if (ACPI_FAILURE(status)) {
+				return (status);
+			}
+			break;
+
+		case ACPI_PTYPE2_COUNT:
+
+			/*
+			 * First element is the (Integer) count of elements, including
+			 * the count field (the ACPI name is num_elements)
+			 */
+			status = acpi_ns_check_object_type(data, sub_elements,
+							   ACPI_RTYPE_INTEGER,
+							   0);
+			if (ACPI_FAILURE(status)) {
+				return (status);
+			}
+
+			/*
+			 * Make sure package is large enough for the Count and is
+			 * is as large as the minimum size
+			 */
+			expected_count = (u32)(*sub_elements)->integer.value;
+			if (sub_package->package.count < expected_count) {
+				goto package_too_small;
+			}
+			if (sub_package->package.count <
+			    package->ret_info.count1) {
+				expected_count = package->ret_info.count1;
+				goto package_too_small;
+			}
+			if (expected_count == 0) {
+				/*
+				 * Either the num_entries element was originally zero or it was
+				 * a NULL element and repaired to an Integer of value zero.
+				 * In either case, repair it by setting num_entries to be the
+				 * actual size of the subpackage.
+				 */
+				expected_count = sub_package->package.count;
+				(*sub_elements)->integer.value = expected_count;
+			}
+
+			/* Check the type of each sub-package element */
+
+			status =
+			    acpi_ns_check_package_elements(data,
+							   (sub_elements + 1),
+							   package->ret_info.
+							   object_type1,
+							   (expected_count - 1),
+							   0, 0, 1);
+			if (ACPI_FAILURE(status)) {
+				return (status);
+			}
+			break;
+
+		default:	/* Should not get here, type was validated by caller */
+
+			return (AE_AML_INTERNAL);
+		}
+
+		elements++;
+	}
+
+	return (AE_OK);
+
+      package_too_small:
+
+	/* The sub-package count was smaller than required */
+
+	ACPI_WARN_PREDEFINED((AE_INFO, data->pathname, data->node_flags,
+			      "Return Sub-Package[%u] is too small - found %u elements, expected %u",
+			      i, sub_package->package.count, expected_count));
+
+	return (AE_AML_OPERAND_VALUE);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_check_package_elements
+ *
+ * PARAMETERS:  data            - Pointer to validation data structure
+ *              elements        - Pointer to the package elements array
+ *              type1           - Object type for first group
+ *              count1          - Count for first group
+ *              type2           - Object type for second group
+ *              count2          - Count for second group
+ *              start_index     - Start of the first group of elements
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Check that all elements of a package are of the correct object
+ *              type. Supports up to two groups of different object types.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ns_check_package_elements(struct acpi_predefined_data *data,
+			       union acpi_operand_object **elements,
+			       u8 type1,
+			       u32 count1,
+			       u8 type2, u32 count2, u32 start_index)
+{
+	union acpi_operand_object **this_element = elements;
+	acpi_status status;
+	u32 i;
+
+	/*
+	 * Up to two groups of package elements are supported by the data
+	 * structure. All elements in each group must be of the same type.
+	 * The second group can have a count of zero.
+	 */
+	for (i = 0; i < count1; i++) {
+		status = acpi_ns_check_object_type(data, this_element,
+						   type1, i + start_index);
+		if (ACPI_FAILURE(status)) {
+			return (status);
+		}
+		this_element++;
+	}
+
+	for (i = 0; i < count2; i++) {
+		status = acpi_ns_check_object_type(data, this_element,
+						   type2,
+						   (i + count1 + start_index));
+		if (ACPI_FAILURE(status)) {
+			return (status);
+		}
+		this_element++;
+	}
+
+	return (AE_OK);
+}
diff --git a/drivers/acpi/acpica/psloop.c b/drivers/acpi/acpica/psloop.c
index a6f8592c9ae5..4261c5fe4718 100644
--- a/drivers/acpi/acpica/psloop.c
+++ b/drivers/acpi/acpica/psloop.c
@@ -58,351 +58,15 @@
 #define _COMPONENT          ACPI_PARSER
 ACPI_MODULE_NAME("psloop")
 
-static u32 acpi_gbl_depth = 0;
-
 /* Local prototypes */
-
-static acpi_status acpi_ps_get_aml_opcode(struct acpi_walk_state *walk_state);
-
-static acpi_status
-acpi_ps_build_named_op(struct acpi_walk_state *walk_state,
-		       u8 * aml_op_start,
-		       union acpi_parse_object *unnamed_op,
-		       union acpi_parse_object **op);
-
-static acpi_status
-acpi_ps_create_op(struct acpi_walk_state *walk_state,
-		  u8 * aml_op_start, union acpi_parse_object **new_op);
-
 static acpi_status
 acpi_ps_get_arguments(struct acpi_walk_state *walk_state,
 		      u8 * aml_op_start, union acpi_parse_object *op);
 
-static acpi_status
-acpi_ps_complete_op(struct acpi_walk_state *walk_state,
-		    union acpi_parse_object **op, acpi_status status);
-
-static acpi_status
-acpi_ps_complete_final_op(struct acpi_walk_state *walk_state,
-			  union acpi_parse_object *op, acpi_status status);
-
 static void
 acpi_ps_link_module_code(union acpi_parse_object *parent_op,
 			 u8 *aml_start, u32 aml_length, acpi_owner_id owner_id);
 
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ps_get_aml_opcode
- *
- * PARAMETERS:  walk_state          - Current state
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Extract the next AML opcode from the input stream.
- *
- ******************************************************************************/
-
-static acpi_status acpi_ps_get_aml_opcode(struct acpi_walk_state *walk_state)
-{
-
-	ACPI_FUNCTION_TRACE_PTR(ps_get_aml_opcode, walk_state);
-
-	walk_state->aml_offset =
-	    (u32) ACPI_PTR_DIFF(walk_state->parser_state.aml,
-				walk_state->parser_state.aml_start);
-	walk_state->opcode = acpi_ps_peek_opcode(&(walk_state->parser_state));
-
-	/*
-	 * First cut to determine what we have found:
-	 * 1) A valid AML opcode
-	 * 2) A name string
-	 * 3) An unknown/invalid opcode
-	 */
-	walk_state->op_info = acpi_ps_get_opcode_info(walk_state->opcode);
-
-	switch (walk_state->op_info->class) {
-	case AML_CLASS_ASCII:
-	case AML_CLASS_PREFIX:
-		/*
-		 * Starts with a valid prefix or ASCII char, this is a name
-		 * string. Convert the bare name string to a namepath.
-		 */
-		walk_state->opcode = AML_INT_NAMEPATH_OP;
-		walk_state->arg_types = ARGP_NAMESTRING;
-		break;
-
-	case AML_CLASS_UNKNOWN:
-
-		/* The opcode is unrecognized. Complain and skip unknown opcodes */
-
-		if (walk_state->pass_number == 2) {
-			ACPI_ERROR((AE_INFO,
-				    "Unknown opcode 0x%.2X at table offset 0x%.4X, ignoring",
-				    walk_state->opcode,
-				    (u32)(walk_state->aml_offset +
-					  sizeof(struct acpi_table_header))));
-
-			ACPI_DUMP_BUFFER((walk_state->parser_state.aml - 16),
-					 48);
-
-#ifdef ACPI_ASL_COMPILER
-			/*
-			 * This is executed for the disassembler only. Output goes
-			 * to the disassembled ASL output file.
-			 */
-			acpi_os_printf
-			    ("/*\nError: Unknown opcode 0x%.2X at table offset 0x%.4X, context:\n",
-			     walk_state->opcode,
-			     (u32)(walk_state->aml_offset +
-				   sizeof(struct acpi_table_header)));
-
-			/* Dump the context surrounding the invalid opcode */
-
-			acpi_ut_dump_buffer(((u8 *)walk_state->parser_state.
-					     aml - 16), 48, DB_BYTE_DISPLAY,
-					    (walk_state->aml_offset +
-					     sizeof(struct acpi_table_header) -
-					     16));
-			acpi_os_printf(" */\n");
-#endif
-		}
-
-		/* Increment past one-byte or two-byte opcode */
-
-		walk_state->parser_state.aml++;
-		if (walk_state->opcode > 0xFF) {	/* Can only happen if first byte is 0x5B */
-			walk_state->parser_state.aml++;
-		}
-
-		return_ACPI_STATUS(AE_CTRL_PARSE_CONTINUE);
-
-	default:
-
-		/* Found opcode info, this is a normal opcode */
-
-		walk_state->parser_state.aml +=
-		    acpi_ps_get_opcode_size(walk_state->opcode);
-		walk_state->arg_types = walk_state->op_info->parse_args;
-		break;
-	}
-
-	return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ps_build_named_op
- *
- * PARAMETERS:  walk_state          - Current state
- *              aml_op_start        - Begin of named Op in AML
- *              unnamed_op          - Early Op (not a named Op)
- *              op                  - Returned Op
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Parse a named Op
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ps_build_named_op(struct acpi_walk_state *walk_state,
-		       u8 * aml_op_start,
-		       union acpi_parse_object *unnamed_op,
-		       union acpi_parse_object **op)
-{
-	acpi_status status = AE_OK;
-	union acpi_parse_object *arg = NULL;
-
-	ACPI_FUNCTION_TRACE_PTR(ps_build_named_op, walk_state);
-
-	unnamed_op->common.value.arg = NULL;
-	unnamed_op->common.arg_list_length = 0;
-	unnamed_op->common.aml_opcode = walk_state->opcode;
-
-	/*
-	 * Get and append arguments until we find the node that contains
-	 * the name (the type ARGP_NAME).
-	 */
-	while (GET_CURRENT_ARG_TYPE(walk_state->arg_types) &&
-	       (GET_CURRENT_ARG_TYPE(walk_state->arg_types) != ARGP_NAME)) {
-		status =
-		    acpi_ps_get_next_arg(walk_state,
-					 &(walk_state->parser_state),
-					 GET_CURRENT_ARG_TYPE(walk_state->
-							      arg_types), &arg);
-		if (ACPI_FAILURE(status)) {
-			return_ACPI_STATUS(status);
-		}
-
-		acpi_ps_append_arg(unnamed_op, arg);
-		INCREMENT_ARG_LIST(walk_state->arg_types);
-	}
-
-	/*
-	 * Make sure that we found a NAME and didn't run out of arguments
-	 */
-	if (!GET_CURRENT_ARG_TYPE(walk_state->arg_types)) {
-		return_ACPI_STATUS(AE_AML_NO_OPERAND);
-	}
-
-	/* We know that this arg is a name, move to next arg */
-
-	INCREMENT_ARG_LIST(walk_state->arg_types);
-
-	/*
-	 * Find the object. This will either insert the object into
-	 * the namespace or simply look it up
-	 */
-	walk_state->op = NULL;
-
-	status = walk_state->descending_callback(walk_state, op);
-	if (ACPI_FAILURE(status)) {
-		ACPI_EXCEPTION((AE_INFO, status, "During name lookup/catalog"));
-		return_ACPI_STATUS(status);
-	}
-
-	if (!*op) {
-		return_ACPI_STATUS(AE_CTRL_PARSE_CONTINUE);
-	}
-
-	status = acpi_ps_next_parse_state(walk_state, *op, status);
-	if (ACPI_FAILURE(status)) {
-		if (status == AE_CTRL_PENDING) {
-			return_ACPI_STATUS(AE_CTRL_PARSE_PENDING);
-		}
-		return_ACPI_STATUS(status);
-	}
-
-	acpi_ps_append_arg(*op, unnamed_op->common.value.arg);
-	acpi_gbl_depth++;
-
-	if ((*op)->common.aml_opcode == AML_REGION_OP ||
-	    (*op)->common.aml_opcode == AML_DATA_REGION_OP) {
-		/*
-		 * Defer final parsing of an operation_region body, because we don't
-		 * have enough info in the first pass to parse it correctly (i.e.,
-		 * there may be method calls within the term_arg elements of the body.)
-		 *
-		 * However, we must continue parsing because the opregion is not a
-		 * standalone package -- we don't know where the end is at this point.
-		 *
-		 * (Length is unknown until parse of the body complete)
-		 */
-		(*op)->named.data = aml_op_start;
-		(*op)->named.length = 0;
-	}
-
-	return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ps_create_op
- *
- * PARAMETERS:  walk_state          - Current state
- *              aml_op_start        - Op start in AML
- *              new_op              - Returned Op
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Get Op from AML
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ps_create_op(struct acpi_walk_state *walk_state,
-		  u8 * aml_op_start, union acpi_parse_object **new_op)
-{
-	acpi_status status = AE_OK;
-	union acpi_parse_object *op;
-	union acpi_parse_object *named_op = NULL;
-	union acpi_parse_object *parent_scope;
-	u8 argument_count;
-	const struct acpi_opcode_info *op_info;
-
-	ACPI_FUNCTION_TRACE_PTR(ps_create_op, walk_state);
-
-	status = acpi_ps_get_aml_opcode(walk_state);
-	if (status == AE_CTRL_PARSE_CONTINUE) {
-		return_ACPI_STATUS(AE_CTRL_PARSE_CONTINUE);
-	}
-
-	/* Create Op structure and append to parent's argument list */
-
-	walk_state->op_info = acpi_ps_get_opcode_info(walk_state->opcode);
-	op = acpi_ps_alloc_op(walk_state->opcode);
-	if (!op) {
-		return_ACPI_STATUS(AE_NO_MEMORY);
-	}
-
-	if (walk_state->op_info->flags & AML_NAMED) {
-		status =
-		    acpi_ps_build_named_op(walk_state, aml_op_start, op,
-					   &named_op);
-		acpi_ps_free_op(op);
-		if (ACPI_FAILURE(status)) {
-			return_ACPI_STATUS(status);
-		}
-
-		*new_op = named_op;
-		return_ACPI_STATUS(AE_OK);
-	}
-
-	/* Not a named opcode, just allocate Op and append to parent */
-
-	if (walk_state->op_info->flags & AML_CREATE) {
-		/*
-		 * Backup to beginning of create_XXXfield declaration
-		 * body_length is unknown until we parse the body
-		 */
-		op->named.data = aml_op_start;
-		op->named.length = 0;
-	}
-
-	if (walk_state->opcode == AML_BANK_FIELD_OP) {
-		/*
-		 * Backup to beginning of bank_field declaration
-		 * body_length is unknown until we parse the body
-		 */
-		op->named.data = aml_op_start;
-		op->named.length = 0;
-	}
-
-	parent_scope = acpi_ps_get_parent_scope(&(walk_state->parser_state));
-	acpi_ps_append_arg(parent_scope, op);
-
-	if (parent_scope) {
-		op_info =
-		    acpi_ps_get_opcode_info(parent_scope->common.aml_opcode);
-		if (op_info->flags & AML_HAS_TARGET) {
-			argument_count =
-			    acpi_ps_get_argument_count(op_info->type);
-			if (parent_scope->common.arg_list_length >
-			    argument_count) {
-				op->common.flags |= ACPI_PARSEOP_TARGET;
-			}
-		} else if (parent_scope->common.aml_opcode == AML_INCREMENT_OP) {
-			op->common.flags |= ACPI_PARSEOP_TARGET;
-		}
-	}
-
-	if (walk_state->descending_callback != NULL) {
-		/*
-		 * Find the object. This will either insert the object into
-		 * the namespace or simply look it up
-		 */
-		walk_state->op = *new_op = op;
-
-		status = walk_state->descending_callback(walk_state, &op);
-		status = acpi_ps_next_parse_state(walk_state, op, status);
-		if (status == AE_CTRL_PENDING) {
-			status = AE_CTRL_PARSE_PENDING;
-		}
-	}
-
-	return_ACPI_STATUS(status);
-}
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ps_get_arguments
@@ -710,288 +374,6 @@ acpi_ps_link_module_code(union acpi_parse_object *parent_op,
 	}
 }
 
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ps_complete_op
- *
- * PARAMETERS:  walk_state          - Current state
- *              op                  - Returned Op
- *              status              - Parse status before complete Op
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Complete Op
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ps_complete_op(struct acpi_walk_state *walk_state,
-		    union acpi_parse_object **op, acpi_status status)
-{
-	acpi_status status2;
-
-	ACPI_FUNCTION_TRACE_PTR(ps_complete_op, walk_state);
-
-	/*
-	 * Finished one argument of the containing scope
-	 */
-	walk_state->parser_state.scope->parse_scope.arg_count--;
-
-	/* Close this Op (will result in parse subtree deletion) */
-
-	status2 = acpi_ps_complete_this_op(walk_state, *op);
-	if (ACPI_FAILURE(status2)) {
-		return_ACPI_STATUS(status2);
-	}
-
-	*op = NULL;
-
-	switch (status) {
-	case AE_OK:
-		break;
-
-	case AE_CTRL_TRANSFER:
-
-		/* We are about to transfer to a called method */
-
-		walk_state->prev_op = NULL;
-		walk_state->prev_arg_types = walk_state->arg_types;
-		return_ACPI_STATUS(status);
-
-	case AE_CTRL_END:
-
-		acpi_ps_pop_scope(&(walk_state->parser_state), op,
-				  &walk_state->arg_types,
-				  &walk_state->arg_count);
-
-		if (*op) {
-			walk_state->op = *op;
-			walk_state->op_info =
-			    acpi_ps_get_opcode_info((*op)->common.aml_opcode);
-			walk_state->opcode = (*op)->common.aml_opcode;
-
-			status = walk_state->ascending_callback(walk_state);
-			status =
-			    acpi_ps_next_parse_state(walk_state, *op, status);
-
-			status2 = acpi_ps_complete_this_op(walk_state, *op);
-			if (ACPI_FAILURE(status2)) {
-				return_ACPI_STATUS(status2);
-			}
-		}
-
-		status = AE_OK;
-		break;
-
-	case AE_CTRL_BREAK:
-	case AE_CTRL_CONTINUE:
-
-		/* Pop off scopes until we find the While */
-
-		while (!(*op) || ((*op)->common.aml_opcode != AML_WHILE_OP)) {
-			acpi_ps_pop_scope(&(walk_state->parser_state), op,
-					  &walk_state->arg_types,
-					  &walk_state->arg_count);
-		}
-
-		/* Close this iteration of the While loop */
-
-		walk_state->op = *op;
-		walk_state->op_info =
-		    acpi_ps_get_opcode_info((*op)->common.aml_opcode);
-		walk_state->opcode = (*op)->common.aml_opcode;
-
-		status = walk_state->ascending_callback(walk_state);
-		status = acpi_ps_next_parse_state(walk_state, *op, status);
-
-		status2 = acpi_ps_complete_this_op(walk_state, *op);
-		if (ACPI_FAILURE(status2)) {
-			return_ACPI_STATUS(status2);
-		}
-
-		status = AE_OK;
-		break;
-
-	case AE_CTRL_TERMINATE:
-
-		/* Clean up */
-		do {
-			if (*op) {
-				status2 =
-				    acpi_ps_complete_this_op(walk_state, *op);
-				if (ACPI_FAILURE(status2)) {
-					return_ACPI_STATUS(status2);
-				}
-
-				acpi_ut_delete_generic_state
-				    (acpi_ut_pop_generic_state
-				     (&walk_state->control_state));
-			}
-
-			acpi_ps_pop_scope(&(walk_state->parser_state), op,
-					  &walk_state->arg_types,
-					  &walk_state->arg_count);
-
-		} while (*op);
-
-		return_ACPI_STATUS(AE_OK);
-
-	default:		/* All other non-AE_OK status */
-
-		do {
-			if (*op) {
-				status2 =
-				    acpi_ps_complete_this_op(walk_state, *op);
-				if (ACPI_FAILURE(status2)) {
-					return_ACPI_STATUS(status2);
-				}
-			}
-
-			acpi_ps_pop_scope(&(walk_state->parser_state), op,
-					  &walk_state->arg_types,
-					  &walk_state->arg_count);
-
-		} while (*op);
-
-#if 0
-		/*
-		 * TBD: Cleanup parse ops on error
-		 */
-		if (*op == NULL) {
-			acpi_ps_pop_scope(parser_state, op,
-					  &walk_state->arg_types,
-					  &walk_state->arg_count);
-		}
-#endif
-		walk_state->prev_op = NULL;
-		walk_state->prev_arg_types = walk_state->arg_types;
-		return_ACPI_STATUS(status);
-	}
-
-	/* This scope complete? */
-
-	if (acpi_ps_has_completed_scope(&(walk_state->parser_state))) {
-		acpi_ps_pop_scope(&(walk_state->parser_state), op,
-				  &walk_state->arg_types,
-				  &walk_state->arg_count);
-		ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "Popped scope, Op=%p\n", *op));
-	} else {
-		*op = NULL;
-	}
-
-	return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ps_complete_final_op
- *
- * PARAMETERS:  walk_state          - Current state
- *              op                  - Current Op
- *              status              - Current parse status before complete last
- *                                    Op
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Complete last Op.
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ps_complete_final_op(struct acpi_walk_state *walk_state,
-			  union acpi_parse_object *op, acpi_status status)
-{
-	acpi_status status2;
-
-	ACPI_FUNCTION_TRACE_PTR(ps_complete_final_op, walk_state);
-
-	/*
-	 * Complete the last Op (if not completed), and clear the scope stack.
-	 * It is easily possible to end an AML "package" with an unbounded number
-	 * of open scopes (such as when several ASL blocks are closed with
-	 * sequential closing braces). We want to terminate each one cleanly.
-	 */
-	ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "AML package complete at Op %p\n",
-			  op));
-	do {
-		if (op) {
-			if (walk_state->ascending_callback != NULL) {
-				walk_state->op = op;
-				walk_state->op_info =
-				    acpi_ps_get_opcode_info(op->common.
-							    aml_opcode);
-				walk_state->opcode = op->common.aml_opcode;
-
-				status =
-				    walk_state->ascending_callback(walk_state);
-				status =
-				    acpi_ps_next_parse_state(walk_state, op,
-							     status);
-				if (status == AE_CTRL_PENDING) {
-					status =
-					    acpi_ps_complete_op(walk_state, &op,
-								AE_OK);
-					if (ACPI_FAILURE(status)) {
-						return_ACPI_STATUS(status);
-					}
-				}
-
-				if (status == AE_CTRL_TERMINATE) {
-					status = AE_OK;
-
-					/* Clean up */
-					do {
-						if (op) {
-							status2 =
-							    acpi_ps_complete_this_op
-							    (walk_state, op);
-							if (ACPI_FAILURE
-							    (status2)) {
-								return_ACPI_STATUS
-								    (status2);
-							}
-						}
-
-						acpi_ps_pop_scope(&
-								  (walk_state->
-								   parser_state),
-								  &op,
-								  &walk_state->
-								  arg_types,
-								  &walk_state->
-								  arg_count);
-
-					} while (op);
-
-					return_ACPI_STATUS(status);
-				}
-
-				else if (ACPI_FAILURE(status)) {
-
-					/* First error is most important */
-
-					(void)
-					    acpi_ps_complete_this_op(walk_state,
-								     op);
-					return_ACPI_STATUS(status);
-				}
-			}
-
-			status2 = acpi_ps_complete_this_op(walk_state, op);
-			if (ACPI_FAILURE(status2)) {
-				return_ACPI_STATUS(status2);
-			}
-		}
-
-		acpi_ps_pop_scope(&(walk_state->parser_state), &op,
-				  &walk_state->arg_types,
-				  &walk_state->arg_count);
-
-	} while (op);
-
-	return_ACPI_STATUS(status);
-}
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ps_parse_loop
@@ -1178,10 +560,6 @@ acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state)
 		walk_state->op_info =
 		    acpi_ps_get_opcode_info(op->common.aml_opcode);
 		if (walk_state->op_info->flags & AML_NAMED) {
-			if (acpi_gbl_depth) {
-				acpi_gbl_depth--;
-			}
-
 			if (op->common.aml_opcode == AML_REGION_OP ||
 			    op->common.aml_opcode == AML_DATA_REGION_OP) {
 				/*
diff --git a/drivers/acpi/acpica/psobject.c b/drivers/acpi/acpica/psobject.c
new file mode 100644
index 000000000000..2f461e4dddff
--- /dev/null
+++ b/drivers/acpi/acpica/psobject.c
@@ -0,0 +1,647 @@
+/******************************************************************************
+ *
+ * Module Name: psobject - Support for parse objects
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2012, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acparser.h"
+#include "amlcode.h"
+
+#define _COMPONENT          ACPI_PARSER
+ACPI_MODULE_NAME("psobject")
+
+/* Local prototypes */
+static acpi_status acpi_ps_get_aml_opcode(struct acpi_walk_state *walk_state);
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ps_get_aml_opcode
+ *
+ * PARAMETERS:  walk_state          - Current state
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Extract the next AML opcode from the input stream.
+ *
+ ******************************************************************************/
+
+static acpi_status acpi_ps_get_aml_opcode(struct acpi_walk_state *walk_state)
+{
+
+	ACPI_FUNCTION_TRACE_PTR(ps_get_aml_opcode, walk_state);
+
+	walk_state->aml_offset =
+	    (u32)ACPI_PTR_DIFF(walk_state->parser_state.aml,
+			       walk_state->parser_state.aml_start);
+	walk_state->opcode = acpi_ps_peek_opcode(&(walk_state->parser_state));
+
+	/*
+	 * First cut to determine what we have found:
+	 * 1) A valid AML opcode
+	 * 2) A name string
+	 * 3) An unknown/invalid opcode
+	 */
+	walk_state->op_info = acpi_ps_get_opcode_info(walk_state->opcode);
+
+	switch (walk_state->op_info->class) {
+	case AML_CLASS_ASCII:
+	case AML_CLASS_PREFIX:
+		/*
+		 * Starts with a valid prefix or ASCII char, this is a name
+		 * string. Convert the bare name string to a namepath.
+		 */
+		walk_state->opcode = AML_INT_NAMEPATH_OP;
+		walk_state->arg_types = ARGP_NAMESTRING;
+		break;
+
+	case AML_CLASS_UNKNOWN:
+
+		/* The opcode is unrecognized. Complain and skip unknown opcodes */
+
+		if (walk_state->pass_number == 2) {
+			ACPI_ERROR((AE_INFO,
+				    "Unknown opcode 0x%.2X at table offset 0x%.4X, ignoring",
+				    walk_state->opcode,
+				    (u32)(walk_state->aml_offset +
+					  sizeof(struct acpi_table_header))));
+
+			ACPI_DUMP_BUFFER((walk_state->parser_state.aml - 16),
+					 48);
+
+#ifdef ACPI_ASL_COMPILER
+			/*
+			 * This is executed for the disassembler only. Output goes
+			 * to the disassembled ASL output file.
+			 */
+			acpi_os_printf
+			    ("/*\nError: Unknown opcode 0x%.2X at table offset 0x%.4X, context:\n",
+			     walk_state->opcode,
+			     (u32)(walk_state->aml_offset +
+				   sizeof(struct acpi_table_header)));
+
+			/* Dump the context surrounding the invalid opcode */
+
+			acpi_ut_dump_buffer(((u8 *)walk_state->parser_state.
+					     aml - 16), 48, DB_BYTE_DISPLAY,
+					    (walk_state->aml_offset +
+					     sizeof(struct acpi_table_header) -
+					     16));
+			acpi_os_printf(" */\n");
+#endif
+		}
+
+		/* Increment past one-byte or two-byte opcode */
+
+		walk_state->parser_state.aml++;
+		if (walk_state->opcode > 0xFF) {	/* Can only happen if first byte is 0x5B */
+			walk_state->parser_state.aml++;
+		}
+
+		return_ACPI_STATUS(AE_CTRL_PARSE_CONTINUE);
+
+	default:
+
+		/* Found opcode info, this is a normal opcode */
+
+		walk_state->parser_state.aml +=
+		    acpi_ps_get_opcode_size(walk_state->opcode);
+		walk_state->arg_types = walk_state->op_info->parse_args;
+		break;
+	}
+
+	return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ps_build_named_op
+ *
+ * PARAMETERS:  walk_state          - Current state
+ *              aml_op_start        - Begin of named Op in AML
+ *              unnamed_op          - Early Op (not a named Op)
+ *              op                  - Returned Op
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Parse a named Op
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ps_build_named_op(struct acpi_walk_state *walk_state,
+		       u8 *aml_op_start,
+		       union acpi_parse_object *unnamed_op,
+		       union acpi_parse_object **op)
+{
+	acpi_status status = AE_OK;
+	union acpi_parse_object *arg = NULL;
+
+	ACPI_FUNCTION_TRACE_PTR(ps_build_named_op, walk_state);
+
+	unnamed_op->common.value.arg = NULL;
+	unnamed_op->common.arg_list_length = 0;
+	unnamed_op->common.aml_opcode = walk_state->opcode;
+
+	/*
+	 * Get and append arguments until we find the node that contains
+	 * the name (the type ARGP_NAME).
+	 */
+	while (GET_CURRENT_ARG_TYPE(walk_state->arg_types) &&
+	       (GET_CURRENT_ARG_TYPE(walk_state->arg_types) != ARGP_NAME)) {
+		status =
+		    acpi_ps_get_next_arg(walk_state,
+					 &(walk_state->parser_state),
+					 GET_CURRENT_ARG_TYPE(walk_state->
+							      arg_types), &arg);
+		if (ACPI_FAILURE(status)) {
+			return_ACPI_STATUS(status);
+		}
+
+		acpi_ps_append_arg(unnamed_op, arg);
+		INCREMENT_ARG_LIST(walk_state->arg_types);
+	}
+
+	/*
+	 * Make sure that we found a NAME and didn't run out of arguments
+	 */
+	if (!GET_CURRENT_ARG_TYPE(walk_state->arg_types)) {
+		return_ACPI_STATUS(AE_AML_NO_OPERAND);
+	}
+
+	/* We know that this arg is a name, move to next arg */
+
+	INCREMENT_ARG_LIST(walk_state->arg_types);
+
+	/*
+	 * Find the object. This will either insert the object into
+	 * the namespace or simply look it up
+	 */
+	walk_state->op = NULL;
+
+	status = walk_state->descending_callback(walk_state, op);
+	if (ACPI_FAILURE(status)) {
+		ACPI_EXCEPTION((AE_INFO, status, "During name lookup/catalog"));
+		return_ACPI_STATUS(status);
+	}
+
+	if (!*op) {
+		return_ACPI_STATUS(AE_CTRL_PARSE_CONTINUE);
+	}
+
+	status = acpi_ps_next_parse_state(walk_state, *op, status);
+	if (ACPI_FAILURE(status)) {
+		if (status == AE_CTRL_PENDING) {
+			return_ACPI_STATUS(AE_CTRL_PARSE_PENDING);
+		}
+		return_ACPI_STATUS(status);
+	}
+
+	acpi_ps_append_arg(*op, unnamed_op->common.value.arg);
+
+	if ((*op)->common.aml_opcode == AML_REGION_OP ||
+	    (*op)->common.aml_opcode == AML_DATA_REGION_OP) {
+		/*
+		 * Defer final parsing of an operation_region body, because we don't
+		 * have enough info in the first pass to parse it correctly (i.e.,
+		 * there may be method calls within the term_arg elements of the body.)
+		 *
+		 * However, we must continue parsing because the opregion is not a
+		 * standalone package -- we don't know where the end is at this point.
+		 *
+		 * (Length is unknown until parse of the body complete)
+		 */
+		(*op)->named.data = aml_op_start;
+		(*op)->named.length = 0;
+	}
+
+	return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ps_create_op
+ *
+ * PARAMETERS:  walk_state          - Current state
+ *              aml_op_start        - Op start in AML
+ *              new_op              - Returned Op
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Get Op from AML
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ps_create_op(struct acpi_walk_state *walk_state,
+		  u8 *aml_op_start, union acpi_parse_object **new_op)
+{
+	acpi_status status = AE_OK;
+	union acpi_parse_object *op;
+	union acpi_parse_object *named_op = NULL;
+	union acpi_parse_object *parent_scope;
+	u8 argument_count;
+	const struct acpi_opcode_info *op_info;
+
+	ACPI_FUNCTION_TRACE_PTR(ps_create_op, walk_state);
+
+	status = acpi_ps_get_aml_opcode(walk_state);
+	if (status == AE_CTRL_PARSE_CONTINUE) {
+		return_ACPI_STATUS(AE_CTRL_PARSE_CONTINUE);
+	}
+
+	/* Create Op structure and append to parent's argument list */
+
+	walk_state->op_info = acpi_ps_get_opcode_info(walk_state->opcode);
+	op = acpi_ps_alloc_op(walk_state->opcode);
+	if (!op) {
+		return_ACPI_STATUS(AE_NO_MEMORY);
+	}
+
+	if (walk_state->op_info->flags & AML_NAMED) {
+		status =
+		    acpi_ps_build_named_op(walk_state, aml_op_start, op,
+					   &named_op);
+		acpi_ps_free_op(op);
+		if (ACPI_FAILURE(status)) {
+			return_ACPI_STATUS(status);
+		}
+
+		*new_op = named_op;
+		return_ACPI_STATUS(AE_OK);
+	}
+
+	/* Not a named opcode, just allocate Op and append to parent */
+
+	if (walk_state->op_info->flags & AML_CREATE) {
+		/*
+		 * Backup to beginning of create_XXXfield declaration
+		 * body_length is unknown until we parse the body
+		 */
+		op->named.data = aml_op_start;
+		op->named.length = 0;
+	}
+
+	if (walk_state->opcode == AML_BANK_FIELD_OP) {
+		/*
+		 * Backup to beginning of bank_field declaration
+		 * body_length is unknown until we parse the body
+		 */
+		op->named.data = aml_op_start;
+		op->named.length = 0;
+	}
+
+	parent_scope = acpi_ps_get_parent_scope(&(walk_state->parser_state));
+	acpi_ps_append_arg(parent_scope, op);
+
+	if (parent_scope) {
+		op_info =
+		    acpi_ps_get_opcode_info(parent_scope->common.aml_opcode);
+		if (op_info->flags & AML_HAS_TARGET) {
+			argument_count =
+			    acpi_ps_get_argument_count(op_info->type);
+			if (parent_scope->common.arg_list_length >
+			    argument_count) {
+				op->common.flags |= ACPI_PARSEOP_TARGET;
+			}
+		} else if (parent_scope->common.aml_opcode == AML_INCREMENT_OP) {
+			op->common.flags |= ACPI_PARSEOP_TARGET;
+		}
+	}
+
+	if (walk_state->descending_callback != NULL) {
+		/*
+		 * Find the object. This will either insert the object into
+		 * the namespace or simply look it up
+		 */
+		walk_state->op = *new_op = op;
+
+		status = walk_state->descending_callback(walk_state, &op);
+		status = acpi_ps_next_parse_state(walk_state, op, status);
+		if (status == AE_CTRL_PENDING) {
+			status = AE_CTRL_PARSE_PENDING;
+		}
+	}
+
+	return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ps_complete_op
+ *
+ * PARAMETERS:  walk_state          - Current state
+ *              op                  - Returned Op
+ *              status              - Parse status before complete Op
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Complete Op
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ps_complete_op(struct acpi_walk_state *walk_state,
+		    union acpi_parse_object **op, acpi_status status)
+{
+	acpi_status status2;
+
+	ACPI_FUNCTION_TRACE_PTR(ps_complete_op, walk_state);
+
+	/*
+	 * Finished one argument of the containing scope
+	 */
+	walk_state->parser_state.scope->parse_scope.arg_count--;
+
+	/* Close this Op (will result in parse subtree deletion) */
+
+	status2 = acpi_ps_complete_this_op(walk_state, *op);
+	if (ACPI_FAILURE(status2)) {
+		return_ACPI_STATUS(status2);
+	}
+
+	*op = NULL;
+
+	switch (status) {
+	case AE_OK:
+		break;
+
+	case AE_CTRL_TRANSFER:
+
+		/* We are about to transfer to a called method */
+
+		walk_state->prev_op = NULL;
+		walk_state->prev_arg_types = walk_state->arg_types;
+		return_ACPI_STATUS(status);
+
+	case AE_CTRL_END:
+
+		acpi_ps_pop_scope(&(walk_state->parser_state), op,
+				  &walk_state->arg_types,
+				  &walk_state->arg_count);
+
+		if (*op) {
+			walk_state->op = *op;
+			walk_state->op_info =
+			    acpi_ps_get_opcode_info((*op)->common.aml_opcode);
+			walk_state->opcode = (*op)->common.aml_opcode;
+
+			status = walk_state->ascending_callback(walk_state);
+			status =
+			    acpi_ps_next_parse_state(walk_state, *op, status);
+
+			status2 = acpi_ps_complete_this_op(walk_state, *op);
+			if (ACPI_FAILURE(status2)) {
+				return_ACPI_STATUS(status2);
+			}
+		}
+
+		status = AE_OK;
+		break;
+
+	case AE_CTRL_BREAK:
+	case AE_CTRL_CONTINUE:
+
+		/* Pop off scopes until we find the While */
+
+		while (!(*op) || ((*op)->common.aml_opcode != AML_WHILE_OP)) {
+			acpi_ps_pop_scope(&(walk_state->parser_state), op,
+					  &walk_state->arg_types,
+					  &walk_state->arg_count);
+		}
+
+		/* Close this iteration of the While loop */
+
+		walk_state->op = *op;
+		walk_state->op_info =
+		    acpi_ps_get_opcode_info((*op)->common.aml_opcode);
+		walk_state->opcode = (*op)->common.aml_opcode;
+
+		status = walk_state->ascending_callback(walk_state);
+		status = acpi_ps_next_parse_state(walk_state, *op, status);
+
+		status2 = acpi_ps_complete_this_op(walk_state, *op);
+		if (ACPI_FAILURE(status2)) {
+			return_ACPI_STATUS(status2);
+		}
+
+		status = AE_OK;
+		break;
+
+	case AE_CTRL_TERMINATE:
+
+		/* Clean up */
+		do {
+			if (*op) {
+				status2 =
+				    acpi_ps_complete_this_op(walk_state, *op);
+				if (ACPI_FAILURE(status2)) {
+					return_ACPI_STATUS(status2);
+				}
+
+				acpi_ut_delete_generic_state
+				    (acpi_ut_pop_generic_state
+				     (&walk_state->control_state));
+			}
+
+			acpi_ps_pop_scope(&(walk_state->parser_state), op,
+					  &walk_state->arg_types,
+					  &walk_state->arg_count);
+
+		} while (*op);
+
+		return_ACPI_STATUS(AE_OK);
+
+	default:		/* All other non-AE_OK status */
+
+		do {
+			if (*op) {
+				status2 =
+				    acpi_ps_complete_this_op(walk_state, *op);
+				if (ACPI_FAILURE(status2)) {
+					return_ACPI_STATUS(status2);
+				}
+			}
+
+			acpi_ps_pop_scope(&(walk_state->parser_state), op,
+					  &walk_state->arg_types,
+					  &walk_state->arg_count);
+
+		} while (*op);
+
+#if 0
+		/*
+		 * TBD: Cleanup parse ops on error
+		 */
+		if (*op == NULL) {
+			acpi_ps_pop_scope(parser_state, op,
+					  &walk_state->arg_types,
+					  &walk_state->arg_count);
+		}
+#endif
+		walk_state->prev_op = NULL;
+		walk_state->prev_arg_types = walk_state->arg_types;
+		return_ACPI_STATUS(status);
+	}
+
+	/* This scope complete? */
+
+	if (acpi_ps_has_completed_scope(&(walk_state->parser_state))) {
+		acpi_ps_pop_scope(&(walk_state->parser_state), op,
+				  &walk_state->arg_types,
+				  &walk_state->arg_count);
+		ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "Popped scope, Op=%p\n", *op));
+	} else {
+		*op = NULL;
+	}
+
+	return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ps_complete_final_op
+ *
+ * PARAMETERS:  walk_state          - Current state
+ *              op                  - Current Op
+ *              status              - Current parse status before complete last
+ *                                    Op
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Complete last Op.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ps_complete_final_op(struct acpi_walk_state *walk_state,
+			  union acpi_parse_object *op, acpi_status status)
+{
+	acpi_status status2;
+
+	ACPI_FUNCTION_TRACE_PTR(ps_complete_final_op, walk_state);
+
+	/*
+	 * Complete the last Op (if not completed), and clear the scope stack.
+	 * It is easily possible to end an AML "package" with an unbounded number
+	 * of open scopes (such as when several ASL blocks are closed with
+	 * sequential closing braces). We want to terminate each one cleanly.
+	 */
+	ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "AML package complete at Op %p\n",
+			  op));
+	do {
+		if (op) {
+			if (walk_state->ascending_callback != NULL) {
+				walk_state->op = op;
+				walk_state->op_info =
+				    acpi_ps_get_opcode_info(op->common.
+							    aml_opcode);
+				walk_state->opcode = op->common.aml_opcode;
+
+				status =
+				    walk_state->ascending_callback(walk_state);
+				status =
+				    acpi_ps_next_parse_state(walk_state, op,
+							     status);
+				if (status == AE_CTRL_PENDING) {
+					status =
+					    acpi_ps_complete_op(walk_state, &op,
+								AE_OK);
+					if (ACPI_FAILURE(status)) {
+						return_ACPI_STATUS(status);
+					}
+				}
+
+				if (status == AE_CTRL_TERMINATE) {
+					status = AE_OK;
+
+					/* Clean up */
+					do {
+						if (op) {
+							status2 =
+							    acpi_ps_complete_this_op
+							    (walk_state, op);
+							if (ACPI_FAILURE
+							    (status2)) {
+								return_ACPI_STATUS
+								    (status2);
+							}
+						}
+
+						acpi_ps_pop_scope(&
+								  (walk_state->
+								   parser_state),
+								  &op,
+								  &walk_state->
+								  arg_types,
+								  &walk_state->
+								  arg_count);
+
+					} while (op);
+
+					return_ACPI_STATUS(status);
+				}
+
+				else if (ACPI_FAILURE(status)) {
+
+					/* First error is most important */
+
+					(void)
+					    acpi_ps_complete_this_op(walk_state,
+								     op);
+					return_ACPI_STATUS(status);
+				}
+			}
+
+			status2 = acpi_ps_complete_this_op(walk_state, op);
+			if (ACPI_FAILURE(status2)) {
+				return_ACPI_STATUS(status2);
+			}
+		}
+
+		acpi_ps_pop_scope(&(walk_state->parser_state), &op,
+				  &walk_state->arg_types,
+				  &walk_state->arg_count);
+
+	} while (op);
+
+	return_ACPI_STATUS(status);
+}
diff --git a/drivers/acpi/acpica/psopcode.c b/drivers/acpi/acpica/psopcode.c
index 1793d934aa30..0fcee880d25c 100644
--- a/drivers/acpi/acpica/psopcode.c
+++ b/drivers/acpi/acpica/psopcode.c
@@ -43,16 +43,12 @@
 
 #include <acpi/acpi.h>
 #include "accommon.h"
-#include "acparser.h"
 #include "acopcode.h"
 #include "amlcode.h"
 
 #define _COMPONENT          ACPI_PARSER
 ACPI_MODULE_NAME("psopcode")
 
-static const u8 acpi_gbl_argument_count[] =
-    { 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 6 };
-
 /*******************************************************************************
  *
  * NAME:        acpi_gbl_aml_op_info
@@ -63,7 +59,6 @@ static const u8 acpi_gbl_argument_count[] =
  *              the operand type.
  *
  ******************************************************************************/
-
 /*
  * Summary of opcode types/flags
  *
@@ -181,7 +176,6 @@ static const u8 acpi_gbl_argument_count[] =
 	AML_CREATE_QWORD_FIELD_OP
 
  ******************************************************************************/
-
 /*
  * Master Opcode information table. A summary of everything we know about each
  * opcode, all in one place.
@@ -656,169 +650,3 @@ const struct acpi_opcode_info acpi_gbl_aml_op_info[AML_NUM_OPCODES] = {
 
 /*! [End] no source code translation !*/
 };
-
-/*
- * This table is directly indexed by the opcodes, and returns an
- * index into the table above
- */
-static const u8 acpi_gbl_short_op_index[256] = {
-/*              0     1     2     3     4     5     6     7  */
-/*              8     9     A     B     C     D     E     F  */
-/* 0x00 */ 0x00, 0x01, _UNK, _UNK, _UNK, _UNK, 0x02, _UNK,
-/* 0x08 */ 0x03, _UNK, 0x04, 0x05, 0x06, 0x07, 0x6E, _UNK,
-/* 0x10 */ 0x08, 0x09, 0x0a, 0x6F, 0x0b, _UNK, _UNK, _UNK,
-/* 0x18 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0x20 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0x28 */ _UNK, _UNK, _UNK, _UNK, _UNK, 0x63, _PFX, _PFX,
-/* 0x30 */ 0x67, 0x66, 0x68, 0x65, 0x69, 0x64, 0x6A, 0x7D,
-/* 0x38 */ 0x7F, 0x80, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0x40 */ _UNK, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC,
-/* 0x48 */ _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC,
-/* 0x50 */ _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC,
-/* 0x58 */ _ASC, _ASC, _ASC, _UNK, _PFX, _UNK, _PFX, _ASC,
-/* 0x60 */ 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13,
-/* 0x68 */ 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, _UNK,
-/* 0x70 */ 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22,
-/* 0x78 */ 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a,
-/* 0x80 */ 0x2b, 0x2c, 0x2d, 0x2e, 0x70, 0x71, 0x2f, 0x30,
-/* 0x88 */ 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x72,
-/* 0x90 */ 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x73, 0x74,
-/* 0x98 */ 0x75, 0x76, _UNK, _UNK, 0x77, 0x78, 0x79, 0x7A,
-/* 0xA0 */ 0x3e, 0x3f, 0x40, 0x41, 0x42, 0x43, 0x60, 0x61,
-/* 0xA8 */ 0x62, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0xB0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0xB8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0xC0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0xC8 */ _UNK, _UNK, _UNK, _UNK, 0x44, _UNK, _UNK, _UNK,
-/* 0xD0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0xD8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0xE0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0xE8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0xF0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0xF8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 0x45,
-};
-
-/*
- * This table is indexed by the second opcode of the extended opcode
- * pair. It returns an index into the opcode table (acpi_gbl_aml_op_info)
- */
-static const u8 acpi_gbl_long_op_index[NUM_EXTENDED_OPCODE] = {
-/*              0     1     2     3     4     5     6     7  */
-/*              8     9     A     B     C     D     E     F  */
-/* 0x00 */ _UNK, 0x46, 0x47, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0x08 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0x10 */ _UNK, _UNK, 0x48, 0x49, _UNK, _UNK, _UNK, _UNK,
-/* 0x18 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 0x7B,
-/* 0x20 */ 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50, 0x51,
-/* 0x28 */ 0x52, 0x53, 0x54, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0x30 */ 0x55, 0x56, 0x57, 0x7e, _UNK, _UNK, _UNK, _UNK,
-/* 0x38 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0x40 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0x48 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0x50 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0x58 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0x60 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0x68 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0x70 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0x78 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0x80 */ 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f,
-/* 0x88 */ 0x7C,
-};
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ps_get_opcode_info
- *
- * PARAMETERS:  opcode              - The AML opcode
- *
- * RETURN:      A pointer to the info about the opcode.
- *
- * DESCRIPTION: Find AML opcode description based on the opcode.
- *              NOTE: This procedure must ALWAYS return a valid pointer!
- *
- ******************************************************************************/
-
-const struct acpi_opcode_info *acpi_ps_get_opcode_info(u16 opcode)
-{
-	ACPI_FUNCTION_NAME(ps_get_opcode_info);
-
-	/*
-	 * Detect normal 8-bit opcode or extended 16-bit opcode
-	 */
-	if (!(opcode & 0xFF00)) {
-
-		/* Simple (8-bit) opcode: 0-255, can't index beyond table  */
-
-		return (&acpi_gbl_aml_op_info
-			[acpi_gbl_short_op_index[(u8) opcode]]);
-	}
-
-	if (((opcode & 0xFF00) == AML_EXTENDED_OPCODE) &&
-	    (((u8) opcode) <= MAX_EXTENDED_OPCODE)) {
-
-		/* Valid extended (16-bit) opcode */
-
-		return (&acpi_gbl_aml_op_info
-			[acpi_gbl_long_op_index[(u8) opcode]]);
-	}
-
-	/* Unknown AML opcode */
-
-	ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
-			  "Unknown AML opcode [%4.4X]\n", opcode));
-
-	return (&acpi_gbl_aml_op_info[_UNK]);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ps_get_opcode_name
- *
- * PARAMETERS:  opcode              - The AML opcode
- *
- * RETURN:      A pointer to the name of the opcode (ASCII String)
- *              Note: Never returns NULL.
- *
- * DESCRIPTION: Translate an opcode into a human-readable string
- *
- ******************************************************************************/
-
-char *acpi_ps_get_opcode_name(u16 opcode)
-{
-#if defined(ACPI_DISASSEMBLER) || defined (ACPI_DEBUG_OUTPUT)
-
-	const struct acpi_opcode_info *op;
-
-	op = acpi_ps_get_opcode_info(opcode);
-
-	/* Always guaranteed to return a valid pointer */
-
-	return (op->name);
-
-#else
-	return ("OpcodeName unavailable");
-
-#endif
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ps_get_argument_count
- *
- * PARAMETERS:  op_type             - Type associated with the AML opcode
- *
- * RETURN:      Argument count
- *
- * DESCRIPTION: Obtain the number of expected arguments for an AML opcode
- *
- ******************************************************************************/
-
-u8 acpi_ps_get_argument_count(u32 op_type)
-{
-
-	if (op_type <= AML_TYPE_EXEC_6A_0T_1R) {
-		return (acpi_gbl_argument_count[op_type]);
-	}
-
-	return (0);
-}
diff --git a/drivers/acpi/acpica/psopinfo.c b/drivers/acpi/acpica/psopinfo.c
new file mode 100644
index 000000000000..d870e6293f7f
--- /dev/null
+++ b/drivers/acpi/acpica/psopinfo.c
@@ -0,0 +1,223 @@
+/******************************************************************************
+ *
+ * Module Name: psopinfo - AML opcode information functions and dispatch tables
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2012, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acparser.h"
+#include "acopcode.h"
+#include "amlcode.h"
+
+#define _COMPONENT          ACPI_PARSER
+ACPI_MODULE_NAME("psopinfo")
+
+extern const u8 acpi_gbl_short_op_index[];
+extern const u8 acpi_gbl_long_op_index[];
+
+static const u8 acpi_gbl_argument_count[] =
+    { 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 6 };
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ps_get_opcode_info
+ *
+ * PARAMETERS:  opcode              - The AML opcode
+ *
+ * RETURN:      A pointer to the info about the opcode.
+ *
+ * DESCRIPTION: Find AML opcode description based on the opcode.
+ *              NOTE: This procedure must ALWAYS return a valid pointer!
+ *
+ ******************************************************************************/
+
+const struct acpi_opcode_info *acpi_ps_get_opcode_info(u16 opcode)
+{
+	ACPI_FUNCTION_NAME(ps_get_opcode_info);
+
+	/*
+	 * Detect normal 8-bit opcode or extended 16-bit opcode
+	 */
+	if (!(opcode & 0xFF00)) {
+
+		/* Simple (8-bit) opcode: 0-255, can't index beyond table  */
+
+		return (&acpi_gbl_aml_op_info
+			[acpi_gbl_short_op_index[(u8)opcode]]);
+	}
+
+	if (((opcode & 0xFF00) == AML_EXTENDED_OPCODE) &&
+	    (((u8)opcode) <= MAX_EXTENDED_OPCODE)) {
+
+		/* Valid extended (16-bit) opcode */
+
+		return (&acpi_gbl_aml_op_info
+			[acpi_gbl_long_op_index[(u8)opcode]]);
+	}
+
+	/* Unknown AML opcode */
+
+	ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+			  "Unknown AML opcode [%4.4X]\n", opcode));
+
+	return (&acpi_gbl_aml_op_info[_UNK]);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ps_get_opcode_name
+ *
+ * PARAMETERS:  opcode              - The AML opcode
+ *
+ * RETURN:      A pointer to the name of the opcode (ASCII String)
+ *              Note: Never returns NULL.
+ *
+ * DESCRIPTION: Translate an opcode into a human-readable string
+ *
+ ******************************************************************************/
+
+char *acpi_ps_get_opcode_name(u16 opcode)
+{
+#if defined(ACPI_DISASSEMBLER) || defined (ACPI_DEBUG_OUTPUT)
+
+	const struct acpi_opcode_info *op;
+
+	op = acpi_ps_get_opcode_info(opcode);
+
+	/* Always guaranteed to return a valid pointer */
+
+	return (op->name);
+
+#else
+	return ("OpcodeName unavailable");
+
+#endif
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ps_get_argument_count
+ *
+ * PARAMETERS:  op_type             - Type associated with the AML opcode
+ *
+ * RETURN:      Argument count
+ *
+ * DESCRIPTION: Obtain the number of expected arguments for an AML opcode
+ *
+ ******************************************************************************/
+
+u8 acpi_ps_get_argument_count(u32 op_type)
+{
+
+	if (op_type <= AML_TYPE_EXEC_6A_0T_1R) {
+		return (acpi_gbl_argument_count[op_type]);
+	}
+
+	return (0);
+}
+
+/*
+ * This table is directly indexed by the opcodes It returns
+ * an index into the opcode table (acpi_gbl_aml_op_info)
+ */
+const u8 acpi_gbl_short_op_index[256] = {
+/*              0     1     2     3     4     5     6     7  */
+/*              8     9     A     B     C     D     E     F  */
+/* 0x00 */ 0x00, 0x01, _UNK, _UNK, _UNK, _UNK, 0x02, _UNK,
+/* 0x08 */ 0x03, _UNK, 0x04, 0x05, 0x06, 0x07, 0x6E, _UNK,
+/* 0x10 */ 0x08, 0x09, 0x0a, 0x6F, 0x0b, _UNK, _UNK, _UNK,
+/* 0x18 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x20 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x28 */ _UNK, _UNK, _UNK, _UNK, _UNK, 0x63, _PFX, _PFX,
+/* 0x30 */ 0x67, 0x66, 0x68, 0x65, 0x69, 0x64, 0x6A, 0x7D,
+/* 0x38 */ 0x7F, 0x80, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x40 */ _UNK, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC,
+/* 0x48 */ _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC,
+/* 0x50 */ _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC,
+/* 0x58 */ _ASC, _ASC, _ASC, _UNK, _PFX, _UNK, _PFX, _ASC,
+/* 0x60 */ 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13,
+/* 0x68 */ 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, _UNK,
+/* 0x70 */ 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22,
+/* 0x78 */ 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a,
+/* 0x80 */ 0x2b, 0x2c, 0x2d, 0x2e, 0x70, 0x71, 0x2f, 0x30,
+/* 0x88 */ 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x72,
+/* 0x90 */ 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x73, 0x74,
+/* 0x98 */ 0x75, 0x76, _UNK, _UNK, 0x77, 0x78, 0x79, 0x7A,
+/* 0xA0 */ 0x3e, 0x3f, 0x40, 0x41, 0x42, 0x43, 0x60, 0x61,
+/* 0xA8 */ 0x62, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0xB0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0xB8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0xC0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0xC8 */ _UNK, _UNK, _UNK, _UNK, 0x44, _UNK, _UNK, _UNK,
+/* 0xD0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0xD8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0xE0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0xE8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0xF0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0xF8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 0x45,
+};
+
+/*
+ * This table is indexed by the second opcode of the extended opcode
+ * pair. It returns an index into the opcode table (acpi_gbl_aml_op_info)
+ */
+const u8 acpi_gbl_long_op_index[NUM_EXTENDED_OPCODE] = {
+/*              0     1     2     3     4     5     6     7  */
+/*              8     9     A     B     C     D     E     F  */
+/* 0x00 */ _UNK, 0x46, 0x47, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x08 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x10 */ _UNK, _UNK, 0x48, 0x49, _UNK, _UNK, _UNK, _UNK,
+/* 0x18 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 0x7B,
+/* 0x20 */ 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50, 0x51,
+/* 0x28 */ 0x52, 0x53, 0x54, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x30 */ 0x55, 0x56, 0x57, 0x7e, _UNK, _UNK, _UNK, _UNK,
+/* 0x38 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x40 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x48 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x50 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x58 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x60 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x68 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x70 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x78 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x80 */ 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f,
+/* 0x88 */ 0x7C,
+};
diff --git a/drivers/acpi/acpica/rsdump.c b/drivers/acpi/acpica/rsdump.c
index 203b4aea53cd..6e8f9bd08fc1 100644
--- a/drivers/acpi/acpica/rsdump.c
+++ b/drivers/acpi/acpica/rsdump.c
@@ -77,419 +77,16 @@ static void acpi_rs_dump_address_common(union acpi_resource_data *resource);
 static void
 acpi_rs_dump_descriptor(void *resource, struct acpi_rsdump_info *table);
 
-#define ACPI_RSD_OFFSET(f)          (u8) ACPI_OFFSET (union acpi_resource_data,f)
-#define ACPI_PRT_OFFSET(f)          (u8) ACPI_OFFSET (struct acpi_pci_routing_table,f)
-#define ACPI_RSD_TABLE_SIZE(name)   (sizeof(name) / sizeof (struct acpi_rsdump_info))
-
-/*******************************************************************************
- *
- * Resource Descriptor info tables
- *
- * Note: The first table entry must be a Title or Literal and must contain
- * the table length (number of table entries)
- *
- ******************************************************************************/
-
-struct acpi_rsdump_info acpi_rs_dump_irq[7] = {
-	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_irq), "IRQ", NULL},
-	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(irq.descriptor_length),
-	 "Descriptor Length", NULL},
-	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(irq.triggering), "Triggering",
-	 acpi_gbl_he_decode},
-	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(irq.polarity), "Polarity",
-	 acpi_gbl_ll_decode},
-	{ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(irq.sharable), "Sharing",
-	 acpi_gbl_shr_decode},
-	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(irq.interrupt_count),
-	 "Interrupt Count", NULL},
-	{ACPI_RSD_SHORTLIST, ACPI_RSD_OFFSET(irq.interrupts[0]),
-	 "Interrupt List", NULL}
-};
-
-struct acpi_rsdump_info acpi_rs_dump_dma[6] = {
-	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_dma), "DMA", NULL},
-	{ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(dma.type), "Speed",
-	 acpi_gbl_typ_decode},
-	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(dma.bus_master), "Mastering",
-	 acpi_gbl_bm_decode},
-	{ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(dma.transfer), "Transfer Type",
-	 acpi_gbl_siz_decode},
-	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(dma.channel_count), "Channel Count",
-	 NULL},
-	{ACPI_RSD_SHORTLIST, ACPI_RSD_OFFSET(dma.channels[0]), "Channel List",
-	 NULL}
-};
-
-struct acpi_rsdump_info acpi_rs_dump_start_dpf[4] = {
-	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_start_dpf),
-	 "Start-Dependent-Functions", NULL},
-	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(start_dpf.descriptor_length),
-	 "Descriptor Length", NULL},
-	{ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(start_dpf.compatibility_priority),
-	 "Compatibility Priority", acpi_gbl_config_decode},
-	{ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(start_dpf.performance_robustness),
-	 "Performance/Robustness", acpi_gbl_config_decode}
-};
-
-struct acpi_rsdump_info acpi_rs_dump_end_dpf[1] = {
-	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_end_dpf),
-	 "End-Dependent-Functions", NULL}
-};
-
-struct acpi_rsdump_info acpi_rs_dump_io[6] = {
-	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_io), "I/O", NULL},
-	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(io.io_decode), "Address Decoding",
-	 acpi_gbl_io_decode},
-	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(io.minimum), "Address Minimum", NULL},
-	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(io.maximum), "Address Maximum", NULL},
-	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(io.alignment), "Alignment", NULL},
-	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(io.address_length), "Address Length",
-	 NULL}
-};
-
-struct acpi_rsdump_info acpi_rs_dump_fixed_io[3] = {
-	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_fixed_io),
-	 "Fixed I/O", NULL},
-	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(fixed_io.address), "Address", NULL},
-	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(fixed_io.address_length),
-	 "Address Length", NULL}
-};
-
-struct acpi_rsdump_info acpi_rs_dump_vendor[3] = {
-	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_vendor),
-	 "Vendor Specific", NULL},
-	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(vendor.byte_length), "Length", NULL},
-	{ACPI_RSD_LONGLIST, ACPI_RSD_OFFSET(vendor.byte_data[0]), "Vendor Data",
-	 NULL}
-};
-
-struct acpi_rsdump_info acpi_rs_dump_end_tag[1] = {
-	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_end_tag), "EndTag",
-	 NULL}
-};
-
-struct acpi_rsdump_info acpi_rs_dump_memory24[6] = {
-	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_memory24),
-	 "24-Bit Memory Range", NULL},
-	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(memory24.write_protect),
-	 "Write Protect", acpi_gbl_rw_decode},
-	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(memory24.minimum), "Address Minimum",
-	 NULL},
-	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(memory24.maximum), "Address Maximum",
-	 NULL},
-	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(memory24.alignment), "Alignment",
-	 NULL},
-	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(memory24.address_length),
-	 "Address Length", NULL}
-};
-
-struct acpi_rsdump_info acpi_rs_dump_memory32[6] = {
-	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_memory32),
-	 "32-Bit Memory Range", NULL},
-	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(memory32.write_protect),
-	 "Write Protect", acpi_gbl_rw_decode},
-	{ACPI_RSD_UINT32, ACPI_RSD_OFFSET(memory32.minimum), "Address Minimum",
-	 NULL},
-	{ACPI_RSD_UINT32, ACPI_RSD_OFFSET(memory32.maximum), "Address Maximum",
-	 NULL},
-	{ACPI_RSD_UINT32, ACPI_RSD_OFFSET(memory32.alignment), "Alignment",
-	 NULL},
-	{ACPI_RSD_UINT32, ACPI_RSD_OFFSET(memory32.address_length),
-	 "Address Length", NULL}
-};
-
-struct acpi_rsdump_info acpi_rs_dump_fixed_memory32[4] = {
-	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_fixed_memory32),
-	 "32-Bit Fixed Memory Range", NULL},
-	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(fixed_memory32.write_protect),
-	 "Write Protect", acpi_gbl_rw_decode},
-	{ACPI_RSD_UINT32, ACPI_RSD_OFFSET(fixed_memory32.address), "Address",
-	 NULL},
-	{ACPI_RSD_UINT32, ACPI_RSD_OFFSET(fixed_memory32.address_length),
-	 "Address Length", NULL}
-};
-
-struct acpi_rsdump_info acpi_rs_dump_address16[8] = {
-	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_address16),
-	 "16-Bit WORD Address Space", NULL},
-	{ACPI_RSD_ADDRESS, 0, NULL, NULL},
-	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(address16.granularity), "Granularity",
-	 NULL},
-	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(address16.minimum), "Address Minimum",
-	 NULL},
-	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(address16.maximum), "Address Maximum",
-	 NULL},
-	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(address16.translation_offset),
-	 "Translation Offset", NULL},
-	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(address16.address_length),
-	 "Address Length", NULL},
-	{ACPI_RSD_SOURCE, ACPI_RSD_OFFSET(address16.resource_source), NULL, NULL}
-};
-
-struct acpi_rsdump_info acpi_rs_dump_address32[8] = {
-	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_address32),
-	 "32-Bit DWORD Address Space", NULL},
-	{ACPI_RSD_ADDRESS, 0, NULL, NULL},
-	{ACPI_RSD_UINT32, ACPI_RSD_OFFSET(address32.granularity), "Granularity",
-	 NULL},
-	{ACPI_RSD_UINT32, ACPI_RSD_OFFSET(address32.minimum), "Address Minimum",
-	 NULL},
-	{ACPI_RSD_UINT32, ACPI_RSD_OFFSET(address32.maximum), "Address Maximum",
-	 NULL},
-	{ACPI_RSD_UINT32, ACPI_RSD_OFFSET(address32.translation_offset),
-	 "Translation Offset", NULL},
-	{ACPI_RSD_UINT32, ACPI_RSD_OFFSET(address32.address_length),
-	 "Address Length", NULL},
-	{ACPI_RSD_SOURCE, ACPI_RSD_OFFSET(address32.resource_source), NULL, NULL}
-};
-
-struct acpi_rsdump_info acpi_rs_dump_address64[8] = {
-	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_address64),
-	 "64-Bit QWORD Address Space", NULL},
-	{ACPI_RSD_ADDRESS, 0, NULL, NULL},
-	{ACPI_RSD_UINT64, ACPI_RSD_OFFSET(address64.granularity), "Granularity",
-	 NULL},
-	{ACPI_RSD_UINT64, ACPI_RSD_OFFSET(address64.minimum), "Address Minimum",
-	 NULL},
-	{ACPI_RSD_UINT64, ACPI_RSD_OFFSET(address64.maximum), "Address Maximum",
-	 NULL},
-	{ACPI_RSD_UINT64, ACPI_RSD_OFFSET(address64.translation_offset),
-	 "Translation Offset", NULL},
-	{ACPI_RSD_UINT64, ACPI_RSD_OFFSET(address64.address_length),
-	 "Address Length", NULL},
-	{ACPI_RSD_SOURCE, ACPI_RSD_OFFSET(address64.resource_source), NULL, NULL}
-};
-
-struct acpi_rsdump_info acpi_rs_dump_ext_address64[8] = {
-	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_ext_address64),
-	 "64-Bit Extended Address Space", NULL},
-	{ACPI_RSD_ADDRESS, 0, NULL, NULL},
-	{ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.granularity),
-	 "Granularity", NULL},
-	{ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.minimum),
-	 "Address Minimum", NULL},
-	{ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.maximum),
-	 "Address Maximum", NULL},
-	{ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.translation_offset),
-	 "Translation Offset", NULL},
-	{ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.address_length),
-	 "Address Length", NULL},
-	{ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.type_specific),
-	 "Type-Specific Attribute", NULL}
-};
-
-struct acpi_rsdump_info acpi_rs_dump_ext_irq[8] = {
-	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_ext_irq),
-	 "Extended IRQ", NULL},
-	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(extended_irq.producer_consumer),
-	 "Type", acpi_gbl_consume_decode},
-	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(extended_irq.triggering),
-	 "Triggering", acpi_gbl_he_decode},
-	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(extended_irq.polarity), "Polarity",
-	 acpi_gbl_ll_decode},
-	{ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(extended_irq.sharable), "Sharing",
-	 acpi_gbl_shr_decode},
-	{ACPI_RSD_SOURCE, ACPI_RSD_OFFSET(extended_irq.resource_source), NULL,
-	 NULL},
-	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(extended_irq.interrupt_count),
-	 "Interrupt Count", NULL},
-	{ACPI_RSD_DWORDLIST, ACPI_RSD_OFFSET(extended_irq.interrupts[0]),
-	 "Interrupt List", NULL}
-};
-
-struct acpi_rsdump_info acpi_rs_dump_generic_reg[6] = {
-	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_generic_reg),
-	 "Generic Register", NULL},
-	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(generic_reg.space_id), "Space ID",
-	 NULL},
-	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(generic_reg.bit_width), "Bit Width",
-	 NULL},
-	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(generic_reg.bit_offset), "Bit Offset",
-	 NULL},
-	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(generic_reg.access_size),
-	 "Access Size", NULL},
-	{ACPI_RSD_UINT64, ACPI_RSD_OFFSET(generic_reg.address), "Address", NULL}
-};
-
-struct acpi_rsdump_info acpi_rs_dump_gpio[16] = {
-	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_gpio), "GPIO", NULL},
-	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(gpio.revision_id), "RevisionId", NULL},
-	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(gpio.connection_type),
-	 "ConnectionType", acpi_gbl_ct_decode},
-	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(gpio.producer_consumer),
-	 "ProducerConsumer", acpi_gbl_consume_decode},
-	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(gpio.pin_config), "PinConfig",
-	 acpi_gbl_ppc_decode},
-	{ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(gpio.sharable), "Sharing",
-	 acpi_gbl_shr_decode},
-	{ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(gpio.io_restriction),
-	 "IoRestriction", acpi_gbl_ior_decode},
-	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(gpio.triggering), "Triggering",
-	 acpi_gbl_he_decode},
-	{ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(gpio.polarity), "Polarity",
-	 acpi_gbl_ll_decode},
-	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(gpio.drive_strength), "DriveStrength",
-	 NULL},
-	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(gpio.debounce_timeout),
-	 "DebounceTimeout", NULL},
-	{ACPI_RSD_SOURCE, ACPI_RSD_OFFSET(gpio.resource_source),
-	 "ResourceSource", NULL},
-	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(gpio.pin_table_length),
-	 "PinTableLength", NULL},
-	{ACPI_RSD_WORDLIST, ACPI_RSD_OFFSET(gpio.pin_table), "PinTable", NULL},
-	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(gpio.vendor_length), "VendorLength",
-	 NULL},
-	{ACPI_RSD_SHORTLISTX, ACPI_RSD_OFFSET(gpio.vendor_data), "VendorData",
-	 NULL},
-};
-
-struct acpi_rsdump_info acpi_rs_dump_fixed_dma[4] = {
-	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_fixed_dma),
-	 "FixedDma", NULL},
-	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(fixed_dma.request_lines),
-	 "RequestLines", NULL},
-	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(fixed_dma.channels), "Channels",
-	 NULL},
-	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(fixed_dma.width), "TransferWidth",
-	 acpi_gbl_dts_decode},
-};
-
-#define ACPI_RS_DUMP_COMMON_SERIAL_BUS \
-	{ACPI_RSD_UINT8,    ACPI_RSD_OFFSET (common_serial_bus.revision_id),    "RevisionId",               NULL}, \
-	{ACPI_RSD_UINT8,    ACPI_RSD_OFFSET (common_serial_bus.type),           "Type",                     acpi_gbl_sbt_decode}, \
-	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET (common_serial_bus.producer_consumer), "ProducerConsumer",      acpi_gbl_consume_decode}, \
-	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET (common_serial_bus.slave_mode),     "SlaveMode",                acpi_gbl_sm_decode}, \
-	{ACPI_RSD_UINT8,    ACPI_RSD_OFFSET (common_serial_bus.type_revision_id), "TypeRevisionId",         NULL}, \
-	{ACPI_RSD_UINT16,   ACPI_RSD_OFFSET (common_serial_bus.type_data_length), "TypeDataLength",         NULL}, \
-	{ACPI_RSD_SOURCE,   ACPI_RSD_OFFSET (common_serial_bus.resource_source), "ResourceSource",          NULL}, \
-	{ACPI_RSD_UINT16,   ACPI_RSD_OFFSET (common_serial_bus.vendor_length),  "VendorLength",             NULL}, \
-	{ACPI_RSD_SHORTLISTX,ACPI_RSD_OFFSET (common_serial_bus.vendor_data),   "VendorData",               NULL},
-
-struct acpi_rsdump_info acpi_rs_dump_common_serial_bus[10] = {
-	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_common_serial_bus),
-	 "Common Serial Bus", NULL},
-	ACPI_RS_DUMP_COMMON_SERIAL_BUS
-};
-
-struct acpi_rsdump_info acpi_rs_dump_i2c_serial_bus[13] = {
-	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_i2c_serial_bus),
-	 "I2C Serial Bus", NULL},
-	ACPI_RS_DUMP_COMMON_SERIAL_BUS {ACPI_RSD_1BITFLAG,
-					ACPI_RSD_OFFSET(i2c_serial_bus.
-							access_mode),
-					"AccessMode", acpi_gbl_am_decode},
-	{ACPI_RSD_UINT32, ACPI_RSD_OFFSET(i2c_serial_bus.connection_speed),
-	 "ConnectionSpeed", NULL},
-	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(i2c_serial_bus.slave_address),
-	 "SlaveAddress", NULL},
-};
-
-struct acpi_rsdump_info acpi_rs_dump_spi_serial_bus[17] = {
-	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_spi_serial_bus),
-	 "Spi Serial Bus", NULL},
-	ACPI_RS_DUMP_COMMON_SERIAL_BUS {ACPI_RSD_1BITFLAG,
-					ACPI_RSD_OFFSET(spi_serial_bus.
-							wire_mode), "WireMode",
-					acpi_gbl_wm_decode},
-	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(spi_serial_bus.device_polarity),
-	 "DevicePolarity", acpi_gbl_dp_decode},
-	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(spi_serial_bus.data_bit_length),
-	 "DataBitLength", NULL},
-	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(spi_serial_bus.clock_phase),
-	 "ClockPhase", acpi_gbl_cph_decode},
-	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(spi_serial_bus.clock_polarity),
-	 "ClockPolarity", acpi_gbl_cpo_decode},
-	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(spi_serial_bus.device_selection),
-	 "DeviceSelection", NULL},
-	{ACPI_RSD_UINT32, ACPI_RSD_OFFSET(spi_serial_bus.connection_speed),
-	 "ConnectionSpeed", NULL},
-};
-
-struct acpi_rsdump_info acpi_rs_dump_uart_serial_bus[19] = {
-	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_uart_serial_bus),
-	 "Uart Serial Bus", NULL},
-	ACPI_RS_DUMP_COMMON_SERIAL_BUS {ACPI_RSD_2BITFLAG,
-					ACPI_RSD_OFFSET(uart_serial_bus.
-							flow_control),
-					"FlowControl", acpi_gbl_fc_decode},
-	{ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(uart_serial_bus.stop_bits),
-	 "StopBits", acpi_gbl_sb_decode},
-	{ACPI_RSD_3BITFLAG, ACPI_RSD_OFFSET(uart_serial_bus.data_bits),
-	 "DataBits", acpi_gbl_bpb_decode},
-	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(uart_serial_bus.endian), "Endian",
-	 acpi_gbl_ed_decode},
-	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(uart_serial_bus.parity), "Parity",
-	 acpi_gbl_pt_decode},
-	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(uart_serial_bus.lines_enabled),
-	 "LinesEnabled", NULL},
-	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(uart_serial_bus.rx_fifo_size),
-	 "RxFifoSize", NULL},
-	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(uart_serial_bus.tx_fifo_size),
-	 "TxFifoSize", NULL},
-	{ACPI_RSD_UINT32, ACPI_RSD_OFFSET(uart_serial_bus.default_baud_rate),
-	 "ConnectionSpeed", NULL},
-};
-
-/*
- * Tables used for common address descriptor flag fields
- */
-static struct acpi_rsdump_info acpi_rs_dump_general_flags[5] = {
-	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_general_flags), NULL,
-	 NULL},
-	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.producer_consumer),
-	 "Consumer/Producer", acpi_gbl_consume_decode},
-	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.decode), "Address Decode",
-	 acpi_gbl_dec_decode},
-	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.min_address_fixed),
-	 "Min Relocatability", acpi_gbl_min_decode},
-	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.max_address_fixed),
-	 "Max Relocatability", acpi_gbl_max_decode}
-};
-
-static struct acpi_rsdump_info acpi_rs_dump_memory_flags[5] = {
-	{ACPI_RSD_LITERAL, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_memory_flags),
-	 "Resource Type", (void *)"Memory Range"},
-	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.info.mem.write_protect),
-	 "Write Protect", acpi_gbl_rw_decode},
-	{ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(address.info.mem.caching),
-	 "Caching", acpi_gbl_mem_decode},
-	{ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(address.info.mem.range_type),
-	 "Range Type", acpi_gbl_mtp_decode},
-	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.info.mem.translation),
-	 "Translation", acpi_gbl_ttp_decode}
-};
-
-static struct acpi_rsdump_info acpi_rs_dump_io_flags[4] = {
-	{ACPI_RSD_LITERAL, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_io_flags),
-	 "Resource Type", (void *)"I/O Range"},
-	{ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(address.info.io.range_type),
-	 "Range Type", acpi_gbl_rng_decode},
-	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.info.io.translation),
-	 "Translation", acpi_gbl_ttp_decode},
-	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.info.io.translation_type),
-	 "Translation Type", acpi_gbl_trs_decode}
-};
-
-/*
- * Table used to dump _PRT contents
- */
-static struct acpi_rsdump_info acpi_rs_dump_prt[5] = {
-	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_prt), NULL, NULL},
-	{ACPI_RSD_UINT64, ACPI_PRT_OFFSET(address), "Address", NULL},
-	{ACPI_RSD_UINT32, ACPI_PRT_OFFSET(pin), "Pin", NULL},
-	{ACPI_RSD_STRING, ACPI_PRT_OFFSET(source[0]), "Source", NULL},
-	{ACPI_RSD_UINT32, ACPI_PRT_OFFSET(source_index), "Source Index", NULL}
-};
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_rs_dump_descriptor
  *
- * PARAMETERS:  Resource
+ * PARAMETERS:  resource            - Buffer containing the resource
+ *              table               - Table entry to decode the resource
  *
  * RETURN:      None
  *
- * DESCRIPTION:
+ * DESCRIPTION: Dump a resource descriptor based on a dump table entry.
  *
  ******************************************************************************/
 
diff --git a/drivers/acpi/acpica/rsdumpinfo.c b/drivers/acpi/acpica/rsdumpinfo.c
new file mode 100644
index 000000000000..63a68c96a8ac
--- /dev/null
+++ b/drivers/acpi/acpica/rsdumpinfo.c
@@ -0,0 +1,454 @@
+/*******************************************************************************
+ *
+ * Module Name: rsdumpinfo - Tables used to display resource descriptors.
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2012, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acresrc.h"
+
+#define _COMPONENT          ACPI_RESOURCES
+ACPI_MODULE_NAME("rsdumpinfo")
+
+#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
+#define ACPI_RSD_OFFSET(f)          (u8) ACPI_OFFSET (union acpi_resource_data,f)
+#define ACPI_PRT_OFFSET(f)          (u8) ACPI_OFFSET (struct acpi_pci_routing_table,f)
+#define ACPI_RSD_TABLE_SIZE(name)   (sizeof(name) / sizeof (struct acpi_rsdump_info))
+/*******************************************************************************
+ *
+ * Resource Descriptor info tables
+ *
+ * Note: The first table entry must be a Title or Literal and must contain
+ * the table length (number of table entries)
+ *
+ ******************************************************************************/
+struct acpi_rsdump_info acpi_rs_dump_irq[7] = {
+	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_irq), "IRQ", NULL},
+	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(irq.descriptor_length),
+	 "Descriptor Length", NULL},
+	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(irq.triggering), "Triggering",
+	 acpi_gbl_he_decode},
+	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(irq.polarity), "Polarity",
+	 acpi_gbl_ll_decode},
+	{ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(irq.sharable), "Sharing",
+	 acpi_gbl_shr_decode},
+	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(irq.interrupt_count),
+	 "Interrupt Count", NULL},
+	{ACPI_RSD_SHORTLIST, ACPI_RSD_OFFSET(irq.interrupts[0]),
+	 "Interrupt List", NULL}
+};
+
+struct acpi_rsdump_info acpi_rs_dump_dma[6] = {
+	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_dma), "DMA", NULL},
+	{ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(dma.type), "Speed",
+	 acpi_gbl_typ_decode},
+	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(dma.bus_master), "Mastering",
+	 acpi_gbl_bm_decode},
+	{ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(dma.transfer), "Transfer Type",
+	 acpi_gbl_siz_decode},
+	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(dma.channel_count), "Channel Count",
+	 NULL},
+	{ACPI_RSD_SHORTLIST, ACPI_RSD_OFFSET(dma.channels[0]), "Channel List",
+	 NULL}
+};
+
+struct acpi_rsdump_info acpi_rs_dump_start_dpf[4] = {
+	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_start_dpf),
+	 "Start-Dependent-Functions", NULL},
+	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(start_dpf.descriptor_length),
+	 "Descriptor Length", NULL},
+	{ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(start_dpf.compatibility_priority),
+	 "Compatibility Priority", acpi_gbl_config_decode},
+	{ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(start_dpf.performance_robustness),
+	 "Performance/Robustness", acpi_gbl_config_decode}
+};
+
+struct acpi_rsdump_info acpi_rs_dump_end_dpf[1] = {
+	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_end_dpf),
+	 "End-Dependent-Functions", NULL}
+};
+
+struct acpi_rsdump_info acpi_rs_dump_io[6] = {
+	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_io), "I/O", NULL},
+	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(io.io_decode), "Address Decoding",
+	 acpi_gbl_io_decode},
+	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(io.minimum), "Address Minimum", NULL},
+	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(io.maximum), "Address Maximum", NULL},
+	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(io.alignment), "Alignment", NULL},
+	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(io.address_length), "Address Length",
+	 NULL}
+};
+
+struct acpi_rsdump_info acpi_rs_dump_fixed_io[3] = {
+	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_fixed_io),
+	 "Fixed I/O", NULL},
+	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(fixed_io.address), "Address", NULL},
+	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(fixed_io.address_length),
+	 "Address Length", NULL}
+};
+
+struct acpi_rsdump_info acpi_rs_dump_vendor[3] = {
+	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_vendor),
+	 "Vendor Specific", NULL},
+	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(vendor.byte_length), "Length", NULL},
+	{ACPI_RSD_LONGLIST, ACPI_RSD_OFFSET(vendor.byte_data[0]), "Vendor Data",
+	 NULL}
+};
+
+struct acpi_rsdump_info acpi_rs_dump_end_tag[1] = {
+	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_end_tag), "EndTag",
+	 NULL}
+};
+
+struct acpi_rsdump_info acpi_rs_dump_memory24[6] = {
+	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_memory24),
+	 "24-Bit Memory Range", NULL},
+	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(memory24.write_protect),
+	 "Write Protect", acpi_gbl_rw_decode},
+	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(memory24.minimum), "Address Minimum",
+	 NULL},
+	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(memory24.maximum), "Address Maximum",
+	 NULL},
+	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(memory24.alignment), "Alignment",
+	 NULL},
+	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(memory24.address_length),
+	 "Address Length", NULL}
+};
+
+struct acpi_rsdump_info acpi_rs_dump_memory32[6] = {
+	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_memory32),
+	 "32-Bit Memory Range", NULL},
+	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(memory32.write_protect),
+	 "Write Protect", acpi_gbl_rw_decode},
+	{ACPI_RSD_UINT32, ACPI_RSD_OFFSET(memory32.minimum), "Address Minimum",
+	 NULL},
+	{ACPI_RSD_UINT32, ACPI_RSD_OFFSET(memory32.maximum), "Address Maximum",
+	 NULL},
+	{ACPI_RSD_UINT32, ACPI_RSD_OFFSET(memory32.alignment), "Alignment",
+	 NULL},
+	{ACPI_RSD_UINT32, ACPI_RSD_OFFSET(memory32.address_length),
+	 "Address Length", NULL}
+};
+
+struct acpi_rsdump_info acpi_rs_dump_fixed_memory32[4] = {
+	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_fixed_memory32),
+	 "32-Bit Fixed Memory Range", NULL},
+	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(fixed_memory32.write_protect),
+	 "Write Protect", acpi_gbl_rw_decode},
+	{ACPI_RSD_UINT32, ACPI_RSD_OFFSET(fixed_memory32.address), "Address",
+	 NULL},
+	{ACPI_RSD_UINT32, ACPI_RSD_OFFSET(fixed_memory32.address_length),
+	 "Address Length", NULL}
+};
+
+struct acpi_rsdump_info acpi_rs_dump_address16[8] = {
+	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_address16),
+	 "16-Bit WORD Address Space", NULL},
+	{ACPI_RSD_ADDRESS, 0, NULL, NULL},
+	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(address16.granularity), "Granularity",
+	 NULL},
+	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(address16.minimum), "Address Minimum",
+	 NULL},
+	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(address16.maximum), "Address Maximum",
+	 NULL},
+	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(address16.translation_offset),
+	 "Translation Offset", NULL},
+	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(address16.address_length),
+	 "Address Length", NULL},
+	{ACPI_RSD_SOURCE, ACPI_RSD_OFFSET(address16.resource_source), NULL, NULL}
+};
+
+struct acpi_rsdump_info acpi_rs_dump_address32[8] = {
+	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_address32),
+	 "32-Bit DWORD Address Space", NULL},
+	{ACPI_RSD_ADDRESS, 0, NULL, NULL},
+	{ACPI_RSD_UINT32, ACPI_RSD_OFFSET(address32.granularity), "Granularity",
+	 NULL},
+	{ACPI_RSD_UINT32, ACPI_RSD_OFFSET(address32.minimum), "Address Minimum",
+	 NULL},
+	{ACPI_RSD_UINT32, ACPI_RSD_OFFSET(address32.maximum), "Address Maximum",
+	 NULL},
+	{ACPI_RSD_UINT32, ACPI_RSD_OFFSET(address32.translation_offset),
+	 "Translation Offset", NULL},
+	{ACPI_RSD_UINT32, ACPI_RSD_OFFSET(address32.address_length),
+	 "Address Length", NULL},
+	{ACPI_RSD_SOURCE, ACPI_RSD_OFFSET(address32.resource_source), NULL, NULL}
+};
+
+struct acpi_rsdump_info acpi_rs_dump_address64[8] = {
+	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_address64),
+	 "64-Bit QWORD Address Space", NULL},
+	{ACPI_RSD_ADDRESS, 0, NULL, NULL},
+	{ACPI_RSD_UINT64, ACPI_RSD_OFFSET(address64.granularity), "Granularity",
+	 NULL},
+	{ACPI_RSD_UINT64, ACPI_RSD_OFFSET(address64.minimum), "Address Minimum",
+	 NULL},
+	{ACPI_RSD_UINT64, ACPI_RSD_OFFSET(address64.maximum), "Address Maximum",
+	 NULL},
+	{ACPI_RSD_UINT64, ACPI_RSD_OFFSET(address64.translation_offset),
+	 "Translation Offset", NULL},
+	{ACPI_RSD_UINT64, ACPI_RSD_OFFSET(address64.address_length),
+	 "Address Length", NULL},
+	{ACPI_RSD_SOURCE, ACPI_RSD_OFFSET(address64.resource_source), NULL, NULL}
+};
+
+struct acpi_rsdump_info acpi_rs_dump_ext_address64[8] = {
+	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_ext_address64),
+	 "64-Bit Extended Address Space", NULL},
+	{ACPI_RSD_ADDRESS, 0, NULL, NULL},
+	{ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.granularity),
+	 "Granularity", NULL},
+	{ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.minimum),
+	 "Address Minimum", NULL},
+	{ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.maximum),
+	 "Address Maximum", NULL},
+	{ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.translation_offset),
+	 "Translation Offset", NULL},
+	{ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.address_length),
+	 "Address Length", NULL},
+	{ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.type_specific),
+	 "Type-Specific Attribute", NULL}
+};
+
+struct acpi_rsdump_info acpi_rs_dump_ext_irq[8] = {
+	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_ext_irq),
+	 "Extended IRQ", NULL},
+	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(extended_irq.producer_consumer),
+	 "Type", acpi_gbl_consume_decode},
+	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(extended_irq.triggering),
+	 "Triggering", acpi_gbl_he_decode},
+	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(extended_irq.polarity), "Polarity",
+	 acpi_gbl_ll_decode},
+	{ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(extended_irq.sharable), "Sharing",
+	 acpi_gbl_shr_decode},
+	{ACPI_RSD_SOURCE, ACPI_RSD_OFFSET(extended_irq.resource_source), NULL,
+	 NULL},
+	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(extended_irq.interrupt_count),
+	 "Interrupt Count", NULL},
+	{ACPI_RSD_DWORDLIST, ACPI_RSD_OFFSET(extended_irq.interrupts[0]),
+	 "Interrupt List", NULL}
+};
+
+struct acpi_rsdump_info acpi_rs_dump_generic_reg[6] = {
+	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_generic_reg),
+	 "Generic Register", NULL},
+	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(generic_reg.space_id), "Space ID",
+	 NULL},
+	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(generic_reg.bit_width), "Bit Width",
+	 NULL},
+	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(generic_reg.bit_offset), "Bit Offset",
+	 NULL},
+	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(generic_reg.access_size),
+	 "Access Size", NULL},
+	{ACPI_RSD_UINT64, ACPI_RSD_OFFSET(generic_reg.address), "Address", NULL}
+};
+
+struct acpi_rsdump_info acpi_rs_dump_gpio[16] = {
+	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_gpio), "GPIO", NULL},
+	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(gpio.revision_id), "RevisionId", NULL},
+	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(gpio.connection_type),
+	 "ConnectionType", acpi_gbl_ct_decode},
+	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(gpio.producer_consumer),
+	 "ProducerConsumer", acpi_gbl_consume_decode},
+	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(gpio.pin_config), "PinConfig",
+	 acpi_gbl_ppc_decode},
+	{ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(gpio.sharable), "Sharing",
+	 acpi_gbl_shr_decode},
+	{ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(gpio.io_restriction),
+	 "IoRestriction", acpi_gbl_ior_decode},
+	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(gpio.triggering), "Triggering",
+	 acpi_gbl_he_decode},
+	{ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(gpio.polarity), "Polarity",
+	 acpi_gbl_ll_decode},
+	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(gpio.drive_strength), "DriveStrength",
+	 NULL},
+	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(gpio.debounce_timeout),
+	 "DebounceTimeout", NULL},
+	{ACPI_RSD_SOURCE, ACPI_RSD_OFFSET(gpio.resource_source),
+	 "ResourceSource", NULL},
+	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(gpio.pin_table_length),
+	 "PinTableLength", NULL},
+	{ACPI_RSD_WORDLIST, ACPI_RSD_OFFSET(gpio.pin_table), "PinTable", NULL},
+	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(gpio.vendor_length), "VendorLength",
+	 NULL},
+	{ACPI_RSD_SHORTLISTX, ACPI_RSD_OFFSET(gpio.vendor_data), "VendorData",
+	 NULL},
+};
+
+struct acpi_rsdump_info acpi_rs_dump_fixed_dma[4] = {
+	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_fixed_dma),
+	 "FixedDma", NULL},
+	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(fixed_dma.request_lines),
+	 "RequestLines", NULL},
+	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(fixed_dma.channels), "Channels",
+	 NULL},
+	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(fixed_dma.width), "TransferWidth",
+	 acpi_gbl_dts_decode},
+};
+
+#define ACPI_RS_DUMP_COMMON_SERIAL_BUS \
+	{ACPI_RSD_UINT8,    ACPI_RSD_OFFSET (common_serial_bus.revision_id),    "RevisionId",               NULL}, \
+	{ACPI_RSD_UINT8,    ACPI_RSD_OFFSET (common_serial_bus.type),           "Type",                     acpi_gbl_sbt_decode}, \
+	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET (common_serial_bus.producer_consumer), "ProducerConsumer",      acpi_gbl_consume_decode}, \
+	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET (common_serial_bus.slave_mode),     "SlaveMode",                acpi_gbl_sm_decode}, \
+	{ACPI_RSD_UINT8,    ACPI_RSD_OFFSET (common_serial_bus.type_revision_id), "TypeRevisionId",         NULL}, \
+	{ACPI_RSD_UINT16,   ACPI_RSD_OFFSET (common_serial_bus.type_data_length), "TypeDataLength",         NULL}, \
+	{ACPI_RSD_SOURCE,   ACPI_RSD_OFFSET (common_serial_bus.resource_source), "ResourceSource",          NULL}, \
+	{ACPI_RSD_UINT16,   ACPI_RSD_OFFSET (common_serial_bus.vendor_length),  "VendorLength",             NULL}, \
+	{ACPI_RSD_SHORTLISTX,ACPI_RSD_OFFSET (common_serial_bus.vendor_data),   "VendorData",               NULL},
+
+struct acpi_rsdump_info acpi_rs_dump_common_serial_bus[10] = {
+	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_common_serial_bus),
+	 "Common Serial Bus", NULL},
+	ACPI_RS_DUMP_COMMON_SERIAL_BUS
+};
+
+struct acpi_rsdump_info acpi_rs_dump_i2c_serial_bus[13] = {
+	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_i2c_serial_bus),
+	 "I2C Serial Bus", NULL},
+	ACPI_RS_DUMP_COMMON_SERIAL_BUS {ACPI_RSD_1BITFLAG,
+					ACPI_RSD_OFFSET(i2c_serial_bus.
+							access_mode),
+					"AccessMode", acpi_gbl_am_decode},
+	{ACPI_RSD_UINT32, ACPI_RSD_OFFSET(i2c_serial_bus.connection_speed),
+	 "ConnectionSpeed", NULL},
+	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(i2c_serial_bus.slave_address),
+	 "SlaveAddress", NULL},
+};
+
+struct acpi_rsdump_info acpi_rs_dump_spi_serial_bus[17] = {
+	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_spi_serial_bus),
+	 "Spi Serial Bus", NULL},
+	ACPI_RS_DUMP_COMMON_SERIAL_BUS {ACPI_RSD_1BITFLAG,
+					ACPI_RSD_OFFSET(spi_serial_bus.
+							wire_mode), "WireMode",
+					acpi_gbl_wm_decode},
+	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(spi_serial_bus.device_polarity),
+	 "DevicePolarity", acpi_gbl_dp_decode},
+	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(spi_serial_bus.data_bit_length),
+	 "DataBitLength", NULL},
+	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(spi_serial_bus.clock_phase),
+	 "ClockPhase", acpi_gbl_cph_decode},
+	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(spi_serial_bus.clock_polarity),
+	 "ClockPolarity", acpi_gbl_cpo_decode},
+	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(spi_serial_bus.device_selection),
+	 "DeviceSelection", NULL},
+	{ACPI_RSD_UINT32, ACPI_RSD_OFFSET(spi_serial_bus.connection_speed),
+	 "ConnectionSpeed", NULL},
+};
+
+struct acpi_rsdump_info acpi_rs_dump_uart_serial_bus[19] = {
+	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_uart_serial_bus),
+	 "Uart Serial Bus", NULL},
+	ACPI_RS_DUMP_COMMON_SERIAL_BUS {ACPI_RSD_2BITFLAG,
+					ACPI_RSD_OFFSET(uart_serial_bus.
+							flow_control),
+					"FlowControl", acpi_gbl_fc_decode},
+	{ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(uart_serial_bus.stop_bits),
+	 "StopBits", acpi_gbl_sb_decode},
+	{ACPI_RSD_3BITFLAG, ACPI_RSD_OFFSET(uart_serial_bus.data_bits),
+	 "DataBits", acpi_gbl_bpb_decode},
+	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(uart_serial_bus.endian), "Endian",
+	 acpi_gbl_ed_decode},
+	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(uart_serial_bus.parity), "Parity",
+	 acpi_gbl_pt_decode},
+	{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(uart_serial_bus.lines_enabled),
+	 "LinesEnabled", NULL},
+	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(uart_serial_bus.rx_fifo_size),
+	 "RxFifoSize", NULL},
+	{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(uart_serial_bus.tx_fifo_size),
+	 "TxFifoSize", NULL},
+	{ACPI_RSD_UINT32, ACPI_RSD_OFFSET(uart_serial_bus.default_baud_rate),
+	 "ConnectionSpeed", NULL},
+};
+
+/*
+ * Tables used for common address descriptor flag fields
+ */
+struct acpi_rsdump_info acpi_rs_dump_general_flags[5] = {
+	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_general_flags), NULL,
+	 NULL},
+	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.producer_consumer),
+	 "Consumer/Producer", acpi_gbl_consume_decode},
+	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.decode), "Address Decode",
+	 acpi_gbl_dec_decode},
+	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.min_address_fixed),
+	 "Min Relocatability", acpi_gbl_min_decode},
+	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.max_address_fixed),
+	 "Max Relocatability", acpi_gbl_max_decode}
+};
+
+struct acpi_rsdump_info acpi_rs_dump_memory_flags[5] = {
+	{ACPI_RSD_LITERAL, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_memory_flags),
+	 "Resource Type", (void *)"Memory Range"},
+	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.info.mem.write_protect),
+	 "Write Protect", acpi_gbl_rw_decode},
+	{ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(address.info.mem.caching),
+	 "Caching", acpi_gbl_mem_decode},
+	{ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(address.info.mem.range_type),
+	 "Range Type", acpi_gbl_mtp_decode},
+	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.info.mem.translation),
+	 "Translation", acpi_gbl_ttp_decode}
+};
+
+struct acpi_rsdump_info acpi_rs_dump_io_flags[4] = {
+	{ACPI_RSD_LITERAL, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_io_flags),
+	 "Resource Type", (void *)"I/O Range"},
+	{ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(address.info.io.range_type),
+	 "Range Type", acpi_gbl_rng_decode},
+	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.info.io.translation),
+	 "Translation", acpi_gbl_ttp_decode},
+	{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.info.io.translation_type),
+	 "Translation Type", acpi_gbl_trs_decode}
+};
+
+/*
+ * Table used to dump _PRT contents
+ */
+struct acpi_rsdump_info acpi_rs_dump_prt[5] = {
+	{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_prt), NULL, NULL},
+	{ACPI_RSD_UINT64, ACPI_PRT_OFFSET(address), "Address", NULL},
+	{ACPI_RSD_UINT32, ACPI_PRT_OFFSET(pin), "Pin", NULL},
+	{ACPI_RSD_STRING, ACPI_PRT_OFFSET(source[0]), "Source", NULL},
+	{ACPI_RSD_UINT32, ACPI_PRT_OFFSET(source_index), "Source Index", NULL}
+};
+
+#endif
diff --git a/drivers/acpi/acpica/utmisc.c b/drivers/acpi/acpica/utmisc.c
index 28819929863c..7ebf4e49266a 100644
--- a/drivers/acpi/acpica/utmisc.c
+++ b/drivers/acpi/acpica/utmisc.c
@@ -48,36 +48,6 @@
 #define _COMPONENT          ACPI_UTILITIES
 ACPI_MODULE_NAME("utmisc")
 
-#if defined ACPI_ASL_COMPILER || defined ACPI_EXEC_APP
-/*******************************************************************************
- *
- * FUNCTION:    ut_convert_backslashes
- *
- * PARAMETERS:  pathname        - File pathname string to be converted
- *
- * RETURN:      Modifies the input Pathname
- *
- * DESCRIPTION: Convert all backslashes (0x5C) to forward slashes (0x2F) within
- *              the entire input file pathname string.
- *
- ******************************************************************************/
-void ut_convert_backslashes(char *pathname)
-{
-
-	if (!pathname) {
-		return;
-	}
-
-	while (*pathname) {
-		if (*pathname == '\\') {
-			*pathname = '/';
-		}
-
-		pathname++;
-	}
-}
-#endif
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ut_is_pci_root_bridge
@@ -89,7 +59,6 @@ void ut_convert_backslashes(char *pathname)
  * DESCRIPTION: Determine if the input ID is a PCI Root Bridge ID.
  *
  ******************************************************************************/
-
 u8 acpi_ut_is_pci_root_bridge(char *id)
 {
 
@@ -134,362 +103,6 @@ u8 acpi_ut_is_aml_table(struct acpi_table_header *table)
 	return (FALSE);
 }
 
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ut_allocate_owner_id
- *
- * PARAMETERS:  owner_id        - Where the new owner ID is returned
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Allocate a table or method owner ID. The owner ID is used to
- *              track objects created by the table or method, to be deleted
- *              when the method exits or the table is unloaded.
- *
- ******************************************************************************/
-
-acpi_status acpi_ut_allocate_owner_id(acpi_owner_id * owner_id)
-{
-	u32 i;
-	u32 j;
-	u32 k;
-	acpi_status status;
-
-	ACPI_FUNCTION_TRACE(ut_allocate_owner_id);
-
-	/* Guard against multiple allocations of ID to the same location */
-
-	if (*owner_id) {
-		ACPI_ERROR((AE_INFO, "Owner ID [0x%2.2X] already exists",
-			    *owner_id));
-		return_ACPI_STATUS(AE_ALREADY_EXISTS);
-	}
-
-	/* Mutex for the global ID mask */
-
-	status = acpi_ut_acquire_mutex(ACPI_MTX_CACHES);
-	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
-	}
-
-	/*
-	 * Find a free owner ID, cycle through all possible IDs on repeated
-	 * allocations. (ACPI_NUM_OWNERID_MASKS + 1) because first index may have
-	 * to be scanned twice.
-	 */
-	for (i = 0, j = acpi_gbl_last_owner_id_index;
-	     i < (ACPI_NUM_OWNERID_MASKS + 1); i++, j++) {
-		if (j >= ACPI_NUM_OWNERID_MASKS) {
-			j = 0;	/* Wraparound to start of mask array */
-		}
-
-		for (k = acpi_gbl_next_owner_id_offset; k < 32; k++) {
-			if (acpi_gbl_owner_id_mask[j] == ACPI_UINT32_MAX) {
-
-				/* There are no free IDs in this mask */
-
-				break;
-			}
-
-			if (!(acpi_gbl_owner_id_mask[j] & (1 << k))) {
-				/*
-				 * Found a free ID. The actual ID is the bit index plus one,
-				 * making zero an invalid Owner ID. Save this as the last ID
-				 * allocated and update the global ID mask.
-				 */
-				acpi_gbl_owner_id_mask[j] |= (1 << k);
-
-				acpi_gbl_last_owner_id_index = (u8)j;
-				acpi_gbl_next_owner_id_offset = (u8)(k + 1);
-
-				/*
-				 * Construct encoded ID from the index and bit position
-				 *
-				 * Note: Last [j].k (bit 255) is never used and is marked
-				 * permanently allocated (prevents +1 overflow)
-				 */
-				*owner_id =
-				    (acpi_owner_id) ((k + 1) + ACPI_MUL_32(j));
-
-				ACPI_DEBUG_PRINT((ACPI_DB_VALUES,
-						  "Allocated OwnerId: %2.2X\n",
-						  (unsigned int)*owner_id));
-				goto exit;
-			}
-		}
-
-		acpi_gbl_next_owner_id_offset = 0;
-	}
-
-	/*
-	 * All owner_ids have been allocated. This typically should
-	 * not happen since the IDs are reused after deallocation. The IDs are
-	 * allocated upon table load (one per table) and method execution, and
-	 * they are released when a table is unloaded or a method completes
-	 * execution.
-	 *
-	 * If this error happens, there may be very deep nesting of invoked control
-	 * methods, or there may be a bug where the IDs are not released.
-	 */
-	status = AE_OWNER_ID_LIMIT;
-	ACPI_ERROR((AE_INFO,
-		    "Could not allocate new OwnerId (255 max), AE_OWNER_ID_LIMIT"));
-
-      exit:
-	(void)acpi_ut_release_mutex(ACPI_MTX_CACHES);
-	return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ut_release_owner_id
- *
- * PARAMETERS:  owner_id_ptr        - Pointer to a previously allocated owner_ID
- *
- * RETURN:      None. No error is returned because we are either exiting a
- *              control method or unloading a table. Either way, we would
- *              ignore any error anyway.
- *
- * DESCRIPTION: Release a table or method owner ID. Valid IDs are 1 - 255
- *
- ******************************************************************************/
-
-void acpi_ut_release_owner_id(acpi_owner_id * owner_id_ptr)
-{
-	acpi_owner_id owner_id = *owner_id_ptr;
-	acpi_status status;
-	u32 index;
-	u32 bit;
-
-	ACPI_FUNCTION_TRACE_U32(ut_release_owner_id, owner_id);
-
-	/* Always clear the input owner_id (zero is an invalid ID) */
-
-	*owner_id_ptr = 0;
-
-	/* Zero is not a valid owner_ID */
-
-	if (owner_id == 0) {
-		ACPI_ERROR((AE_INFO, "Invalid OwnerId: 0x%2.2X", owner_id));
-		return_VOID;
-	}
-
-	/* Mutex for the global ID mask */
-
-	status = acpi_ut_acquire_mutex(ACPI_MTX_CACHES);
-	if (ACPI_FAILURE(status)) {
-		return_VOID;
-	}
-
-	/* Normalize the ID to zero */
-
-	owner_id--;
-
-	/* Decode ID to index/offset pair */
-
-	index = ACPI_DIV_32(owner_id);
-	bit = 1 << ACPI_MOD_32(owner_id);
-
-	/* Free the owner ID only if it is valid */
-
-	if (acpi_gbl_owner_id_mask[index] & bit) {
-		acpi_gbl_owner_id_mask[index] ^= bit;
-	} else {
-		ACPI_ERROR((AE_INFO,
-			    "Release of non-allocated OwnerId: 0x%2.2X",
-			    owner_id + 1));
-	}
-
-	(void)acpi_ut_release_mutex(ACPI_MTX_CACHES);
-	return_VOID;
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ut_strupr (strupr)
- *
- * PARAMETERS:  src_string      - The source string to convert
- *
- * RETURN:      None
- *
- * DESCRIPTION: Convert string to uppercase
- *
- * NOTE: This is not a POSIX function, so it appears here, not in utclib.c
- *
- ******************************************************************************/
-
-void acpi_ut_strupr(char *src_string)
-{
-	char *string;
-
-	ACPI_FUNCTION_ENTRY();
-
-	if (!src_string) {
-		return;
-	}
-
-	/* Walk entire string, uppercasing the letters */
-
-	for (string = src_string; *string; string++) {
-		*string = (char)ACPI_TOUPPER(*string);
-	}
-
-	return;
-}
-
-#ifdef ACPI_ASL_COMPILER
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ut_strlwr (strlwr)
- *
- * PARAMETERS:  src_string      - The source string to convert
- *
- * RETURN:      None
- *
- * DESCRIPTION: Convert string to lowercase
- *
- * NOTE: This is not a POSIX function, so it appears here, not in utclib.c
- *
- ******************************************************************************/
-
-void acpi_ut_strlwr(char *src_string)
-{
-	char *string;
-
-	ACPI_FUNCTION_ENTRY();
-
-	if (!src_string) {
-		return;
-	}
-
-	/* Walk entire string, lowercasing the letters */
-
-	for (string = src_string; *string; string++) {
-		*string = (char)ACPI_TOLOWER(*string);
-	}
-
-	return;
-}
-
-/******************************************************************************
- *
- * FUNCTION:    acpi_ut_stricmp
- *
- * PARAMETERS:  string1             - first string to compare
- *              string2             - second string to compare
- *
- * RETURN:      int that signifies string relationship. Zero means strings
- *              are equal.
- *
- * DESCRIPTION: Implementation of the non-ANSI stricmp function (compare
- *              strings with no case sensitivity)
- *
- ******************************************************************************/
-
-int acpi_ut_stricmp(char *string1, char *string2)
-{
-	int c1;
-	int c2;
-
-	do {
-		c1 = tolower((int)*string1);
-		c2 = tolower((int)*string2);
-
-		string1++;
-		string2++;
-	}
-	while ((c1 == c2) && (c1));
-
-	return (c1 - c2);
-}
-#endif
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ut_print_string
- *
- * PARAMETERS:  string          - Null terminated ASCII string
- *              max_length      - Maximum output length
- *
- * RETURN:      None
- *
- * DESCRIPTION: Dump an ASCII string with support for ACPI-defined escape
- *              sequences.
- *
- ******************************************************************************/
-
-void acpi_ut_print_string(char *string, u8 max_length)
-{
-	u32 i;
-
-	if (!string) {
-		acpi_os_printf("<\"NULL STRING PTR\">");
-		return;
-	}
-
-	acpi_os_printf("\"");
-	for (i = 0; string[i] && (i < max_length); i++) {
-
-		/* Escape sequences */
-
-		switch (string[i]) {
-		case 0x07:
-			acpi_os_printf("\\a");	/* BELL */
-			break;
-
-		case 0x08:
-			acpi_os_printf("\\b");	/* BACKSPACE */
-			break;
-
-		case 0x0C:
-			acpi_os_printf("\\f");	/* FORMFEED */
-			break;
-
-		case 0x0A:
-			acpi_os_printf("\\n");	/* LINEFEED */
-			break;
-
-		case 0x0D:
-			acpi_os_printf("\\r");	/* CARRIAGE RETURN */
-			break;
-
-		case 0x09:
-			acpi_os_printf("\\t");	/* HORIZONTAL TAB */
-			break;
-
-		case 0x0B:
-			acpi_os_printf("\\v");	/* VERTICAL TAB */
-			break;
-
-		case '\'':	/* Single Quote */
-		case '\"':	/* Double Quote */
-		case '\\':	/* Backslash */
-			acpi_os_printf("\\%c", (int)string[i]);
-			break;
-
-		default:
-
-			/* Check for printable character or hex escape */
-
-			if (ACPI_IS_PRINT(string[i])) {
-				/* This is a normal character */
-
-				acpi_os_printf("%c", (int)string[i]);
-			} else {
-				/* All others will be Hex escapes */
-
-				acpi_os_printf("\\x%2.2X", (s32) string[i]);
-			}
-			break;
-		}
-	}
-	acpi_os_printf("\"");
-
-	if (i == max_length && string[i]) {
-		acpi_os_printf("...");
-	}
-}
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ut_dword_byte_swap
@@ -559,379 +172,6 @@ void acpi_ut_set_integer_width(u8 revision)
 	}
 }
 
-#ifdef ACPI_DEBUG_OUTPUT
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ut_display_init_pathname
- *
- * PARAMETERS:  type                - Object type of the node
- *              obj_handle          - Handle whose pathname will be displayed
- *              path                - Additional path string to be appended.
- *                                      (NULL if no extra path)
- *
- * RETURN:      acpi_status
- *
- * DESCRIPTION: Display full pathname of an object, DEBUG ONLY
- *
- ******************************************************************************/
-
-void
-acpi_ut_display_init_pathname(u8 type,
-			      struct acpi_namespace_node *obj_handle,
-			      char *path)
-{
-	acpi_status status;
-	struct acpi_buffer buffer;
-
-	ACPI_FUNCTION_ENTRY();
-
-	/* Only print the path if the appropriate debug level is enabled */
-
-	if (!(acpi_dbg_level & ACPI_LV_INIT_NAMES)) {
-		return;
-	}
-
-	/* Get the full pathname to the node */
-
-	buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
-	status = acpi_ns_handle_to_pathname(obj_handle, &buffer);
-	if (ACPI_FAILURE(status)) {
-		return;
-	}
-
-	/* Print what we're doing */
-
-	switch (type) {
-	case ACPI_TYPE_METHOD:
-		acpi_os_printf("Executing  ");
-		break;
-
-	default:
-		acpi_os_printf("Initializing ");
-		break;
-	}
-
-	/* Print the object type and pathname */
-
-	acpi_os_printf("%-12s %s",
-		       acpi_ut_get_type_name(type), (char *)buffer.pointer);
-
-	/* Extra path is used to append names like _STA, _INI, etc. */
-
-	if (path) {
-		acpi_os_printf(".%s", path);
-	}
-	acpi_os_printf("\n");
-
-	ACPI_FREE(buffer.pointer);
-}
-#endif
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ut_valid_acpi_char
- *
- * PARAMETERS:  char            - The character to be examined
- *              position        - Byte position (0-3)
- *
- * RETURN:      TRUE if the character is valid, FALSE otherwise
- *
- * DESCRIPTION: Check for a valid ACPI character. Must be one of:
- *              1) Upper case alpha
- *              2) numeric
- *              3) underscore
- *
- *              We allow a '!' as the last character because of the ASF! table
- *
- ******************************************************************************/
-
-u8 acpi_ut_valid_acpi_char(char character, u32 position)
-{
-
-	if (!((character >= 'A' && character <= 'Z') ||
-	      (character >= '0' && character <= '9') || (character == '_'))) {
-
-		/* Allow a '!' in the last position */
-
-		if (character == '!' && position == 3) {
-			return (TRUE);
-		}
-
-		return (FALSE);
-	}
-
-	return (TRUE);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ut_valid_acpi_name
- *
- * PARAMETERS:  name            - The name to be examined
- *
- * RETURN:      TRUE if the name is valid, FALSE otherwise
- *
- * DESCRIPTION: Check for a valid ACPI name. Each character must be one of:
- *              1) Upper case alpha
- *              2) numeric
- *              3) underscore
- *
- ******************************************************************************/
-
-u8 acpi_ut_valid_acpi_name(u32 name)
-{
-	u32 i;
-
-	ACPI_FUNCTION_ENTRY();
-
-	for (i = 0; i < ACPI_NAME_SIZE; i++) {
-		if (!acpi_ut_valid_acpi_char
-		    ((ACPI_CAST_PTR(char, &name))[i], i)) {
-			return (FALSE);
-		}
-	}
-
-	return (TRUE);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ut_repair_name
- *
- * PARAMETERS:  name            - The ACPI name to be repaired
- *
- * RETURN:      Repaired version of the name
- *
- * DESCRIPTION: Repair an ACPI name: Change invalid characters to '*' and
- *              return the new name. NOTE: the Name parameter must reside in
- *              read/write memory, cannot be a const.
- *
- * An ACPI Name must consist of valid ACPI characters. We will repair the name
- * if necessary because we don't want to abort because of this, but we want
- * all namespace names to be printable. A warning message is appropriate.
- *
- * This issue came up because there are in fact machines that exhibit
- * this problem, and we want to be able to enable ACPI support for them,
- * even though there are a few bad names.
- *
- ******************************************************************************/
-
-void acpi_ut_repair_name(char *name)
-{
-	u32 i;
-	u8 found_bad_char = FALSE;
-	u32 original_name;
-
-	ACPI_FUNCTION_NAME(ut_repair_name);
-
-	ACPI_MOVE_NAME(&original_name, name);
-
-	/* Check each character in the name */
-
-	for (i = 0; i < ACPI_NAME_SIZE; i++) {
-		if (acpi_ut_valid_acpi_char(name[i], i)) {
-			continue;
-		}
-
-		/*
-		 * Replace a bad character with something printable, yet technically
-		 * still invalid. This prevents any collisions with existing "good"
-		 * names in the namespace.
-		 */
-		name[i] = '*';
-		found_bad_char = TRUE;
-	}
-
-	if (found_bad_char) {
-
-		/* Report warning only if in strict mode or debug mode */
-
-		if (!acpi_gbl_enable_interpreter_slack) {
-			ACPI_WARNING((AE_INFO,
-				      "Invalid character(s) in name (0x%.8X), repaired: [%4.4s]",
-					  original_name, name));
-		} else {
-			ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-					  "Invalid character(s) in name (0x%.8X), repaired: [%4.4s]",
-					  original_name, name));
-		}
-	}
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ut_strtoul64
- *
- * PARAMETERS:  string          - Null terminated string
- *              base            - Radix of the string: 16 or ACPI_ANY_BASE;
- *                                ACPI_ANY_BASE means 'in behalf of to_integer'
- *              ret_integer     - Where the converted integer is returned
- *
- * RETURN:      Status and Converted value
- *
- * DESCRIPTION: Convert a string into an unsigned value. Performs either a
- *              32-bit or 64-bit conversion, depending on the current mode
- *              of the interpreter.
- *              NOTE: Does not support Octal strings, not needed.
- *
- ******************************************************************************/
-
-acpi_status acpi_ut_strtoul64(char *string, u32 base, u64 *ret_integer)
-{
-	u32 this_digit = 0;
-	u64 return_value = 0;
-	u64 quotient;
-	u64 dividend;
-	u32 to_integer_op = (base == ACPI_ANY_BASE);
-	u32 mode32 = (acpi_gbl_integer_byte_width == 4);
-	u8 valid_digits = 0;
-	u8 sign_of0x = 0;
-	u8 term = 0;
-
-	ACPI_FUNCTION_TRACE_STR(ut_stroul64, string);
-
-	switch (base) {
-	case ACPI_ANY_BASE:
-	case 16:
-		break;
-
-	default:
-		/* Invalid Base */
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
-	}
-
-	if (!string) {
-		goto error_exit;
-	}
-
-	/* Skip over any white space in the buffer */
-
-	while ((*string) && (ACPI_IS_SPACE(*string) || *string == '\t')) {
-		string++;
-	}
-
-	if (to_integer_op) {
-		/*
-		 * Base equal to ACPI_ANY_BASE means 'ToInteger operation case'.
-		 * We need to determine if it is decimal or hexadecimal.
-		 */
-		if ((*string == '0') && (ACPI_TOLOWER(*(string + 1)) == 'x')) {
-			sign_of0x = 1;
-			base = 16;
-
-			/* Skip over the leading '0x' */
-			string += 2;
-		} else {
-			base = 10;
-		}
-	}
-
-	/* Any string left? Check that '0x' is not followed by white space. */
-
-	if (!(*string) || ACPI_IS_SPACE(*string) || *string == '\t') {
-		if (to_integer_op) {
-			goto error_exit;
-		} else {
-			goto all_done;
-		}
-	}
-
-	/*
-	 * Perform a 32-bit or 64-bit conversion, depending upon the current
-	 * execution mode of the interpreter
-	 */
-	dividend = (mode32) ? ACPI_UINT32_MAX : ACPI_UINT64_MAX;
-
-	/* Main loop: convert the string to a 32- or 64-bit integer */
-
-	while (*string) {
-		if (ACPI_IS_DIGIT(*string)) {
-
-			/* Convert ASCII 0-9 to Decimal value */
-
-			this_digit = ((u8)*string) - '0';
-		} else if (base == 10) {
-
-			/* Digit is out of range; possible in to_integer case only */
-
-			term = 1;
-		} else {
-			this_digit = (u8)ACPI_TOUPPER(*string);
-			if (ACPI_IS_XDIGIT((char)this_digit)) {
-
-				/* Convert ASCII Hex char to value */
-
-				this_digit = this_digit - 'A' + 10;
-			} else {
-				term = 1;
-			}
-		}
-
-		if (term) {
-			if (to_integer_op) {
-				goto error_exit;
-			} else {
-				break;
-			}
-		} else if ((valid_digits == 0) && (this_digit == 0)
-			   && !sign_of0x) {
-
-			/* Skip zeros */
-			string++;
-			continue;
-		}
-
-		valid_digits++;
-
-		if (sign_of0x
-		    && ((valid_digits > 16)
-			|| ((valid_digits > 8) && mode32))) {
-			/*
-			 * This is to_integer operation case.
-			 * No any restrictions for string-to-integer conversion,
-			 * see ACPI spec.
-			 */
-			goto error_exit;
-		}
-
-		/* Divide the digit into the correct position */
-
-		(void)acpi_ut_short_divide((dividend - (u64)this_digit),
-					   base, &quotient, NULL);
-
-		if (return_value > quotient) {
-			if (to_integer_op) {
-				goto error_exit;
-			} else {
-				break;
-			}
-		}
-
-		return_value *= base;
-		return_value += this_digit;
-		string++;
-	}
-
-	/* All done, normal exit */
-
-      all_done:
-
-	ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Converted value: %8.8X%8.8X\n",
-			  ACPI_FORMAT_UINT64(return_value)));
-
-	*ret_integer = return_value;
-	return_ACPI_STATUS(AE_OK);
-
-      error_exit:
-	/* Base was set/validated above */
-
-	if (base == 10) {
-		return_ACPI_STATUS(AE_BAD_DECIMAL_CONSTANT);
-	} else {
-		return_ACPI_STATUS(AE_BAD_HEX_CONSTANT);
-	}
-}
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ut_create_update_state_and_push
@@ -1097,3 +337,71 @@ acpi_ut_walk_package_tree(union acpi_operand_object *source_object,
 
 	return_ACPI_STATUS(AE_AML_INTERNAL);
 }
+
+#ifdef ACPI_DEBUG_OUTPUT
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_display_init_pathname
+ *
+ * PARAMETERS:  type                - Object type of the node
+ *              obj_handle          - Handle whose pathname will be displayed
+ *              path                - Additional path string to be appended.
+ *                                      (NULL if no extra path)
+ *
+ * RETURN:      acpi_status
+ *
+ * DESCRIPTION: Display full pathname of an object, DEBUG ONLY
+ *
+ ******************************************************************************/
+
+void
+acpi_ut_display_init_pathname(u8 type,
+			      struct acpi_namespace_node *obj_handle,
+			      char *path)
+{
+	acpi_status status;
+	struct acpi_buffer buffer;
+
+	ACPI_FUNCTION_ENTRY();
+
+	/* Only print the path if the appropriate debug level is enabled */
+
+	if (!(acpi_dbg_level & ACPI_LV_INIT_NAMES)) {
+		return;
+	}
+
+	/* Get the full pathname to the node */
+
+	buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
+	status = acpi_ns_handle_to_pathname(obj_handle, &buffer);
+	if (ACPI_FAILURE(status)) {
+		return;
+	}
+
+	/* Print what we're doing */
+
+	switch (type) {
+	case ACPI_TYPE_METHOD:
+		acpi_os_printf("Executing  ");
+		break;
+
+	default:
+		acpi_os_printf("Initializing ");
+		break;
+	}
+
+	/* Print the object type and pathname */
+
+	acpi_os_printf("%-12s %s",
+		       acpi_ut_get_type_name(type), (char *)buffer.pointer);
+
+	/* Extra path is used to append names like _STA, _INI, etc. */
+
+	if (path) {
+		acpi_os_printf(".%s", path);
+	}
+	acpi_os_printf("\n");
+
+	ACPI_FREE(buffer.pointer);
+}
+#endif
diff --git a/drivers/acpi/acpica/utownerid.c b/drivers/acpi/acpica/utownerid.c
new file mode 100644
index 000000000000..6b42e6330164
--- /dev/null
+++ b/drivers/acpi/acpica/utownerid.c
@@ -0,0 +1,218 @@
+/*******************************************************************************
+ *
+ * Module Name: utownerid - Support for Table/Method Owner IDs
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2012, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acnamesp.h"
+
+#define _COMPONENT          ACPI_UTILITIES
+ACPI_MODULE_NAME("utownerid")
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_allocate_owner_id
+ *
+ * PARAMETERS:  owner_id        - Where the new owner ID is returned
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Allocate a table or method owner ID. The owner ID is used to
+ *              track objects created by the table or method, to be deleted
+ *              when the method exits or the table is unloaded.
+ *
+ ******************************************************************************/
+acpi_status acpi_ut_allocate_owner_id(acpi_owner_id * owner_id)
+{
+	u32 i;
+	u32 j;
+	u32 k;
+	acpi_status status;
+
+	ACPI_FUNCTION_TRACE(ut_allocate_owner_id);
+
+	/* Guard against multiple allocations of ID to the same location */
+
+	if (*owner_id) {
+		ACPI_ERROR((AE_INFO, "Owner ID [0x%2.2X] already exists",
+			    *owner_id));
+		return_ACPI_STATUS(AE_ALREADY_EXISTS);
+	}
+
+	/* Mutex for the global ID mask */
+
+	status = acpi_ut_acquire_mutex(ACPI_MTX_CACHES);
+	if (ACPI_FAILURE(status)) {
+		return_ACPI_STATUS(status);
+	}
+
+	/*
+	 * Find a free owner ID, cycle through all possible IDs on repeated
+	 * allocations. (ACPI_NUM_OWNERID_MASKS + 1) because first index may have
+	 * to be scanned twice.
+	 */
+	for (i = 0, j = acpi_gbl_last_owner_id_index;
+	     i < (ACPI_NUM_OWNERID_MASKS + 1); i++, j++) {
+		if (j >= ACPI_NUM_OWNERID_MASKS) {
+			j = 0;	/* Wraparound to start of mask array */
+		}
+
+		for (k = acpi_gbl_next_owner_id_offset; k < 32; k++) {
+			if (acpi_gbl_owner_id_mask[j] == ACPI_UINT32_MAX) {
+
+				/* There are no free IDs in this mask */
+
+				break;
+			}
+
+			if (!(acpi_gbl_owner_id_mask[j] & (1 << k))) {
+				/*
+				 * Found a free ID. The actual ID is the bit index plus one,
+				 * making zero an invalid Owner ID. Save this as the last ID
+				 * allocated and update the global ID mask.
+				 */
+				acpi_gbl_owner_id_mask[j] |= (1 << k);
+
+				acpi_gbl_last_owner_id_index = (u8)j;
+				acpi_gbl_next_owner_id_offset = (u8)(k + 1);
+
+				/*
+				 * Construct encoded ID from the index and bit position
+				 *
+				 * Note: Last [j].k (bit 255) is never used and is marked
+				 * permanently allocated (prevents +1 overflow)
+				 */
+				*owner_id =
+				    (acpi_owner_id) ((k + 1) + ACPI_MUL_32(j));
+
+				ACPI_DEBUG_PRINT((ACPI_DB_VALUES,
+						  "Allocated OwnerId: %2.2X\n",
+						  (unsigned int)*owner_id));
+				goto exit;
+			}
+		}
+
+		acpi_gbl_next_owner_id_offset = 0;
+	}
+
+	/*
+	 * All owner_ids have been allocated. This typically should
+	 * not happen since the IDs are reused after deallocation. The IDs are
+	 * allocated upon table load (one per table) and method execution, and
+	 * they are released when a table is unloaded or a method completes
+	 * execution.
+	 *
+	 * If this error happens, there may be very deep nesting of invoked control
+	 * methods, or there may be a bug where the IDs are not released.
+	 */
+	status = AE_OWNER_ID_LIMIT;
+	ACPI_ERROR((AE_INFO,
+		    "Could not allocate new OwnerId (255 max), AE_OWNER_ID_LIMIT"));
+
+      exit:
+	(void)acpi_ut_release_mutex(ACPI_MTX_CACHES);
+	return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_release_owner_id
+ *
+ * PARAMETERS:  owner_id_ptr        - Pointer to a previously allocated owner_ID
+ *
+ * RETURN:      None. No error is returned because we are either exiting a
+ *              control method or unloading a table. Either way, we would
+ *              ignore any error anyway.
+ *
+ * DESCRIPTION: Release a table or method owner ID. Valid IDs are 1 - 255
+ *
+ ******************************************************************************/
+
+void acpi_ut_release_owner_id(acpi_owner_id * owner_id_ptr)
+{
+	acpi_owner_id owner_id = *owner_id_ptr;
+	acpi_status status;
+	u32 index;
+	u32 bit;
+
+	ACPI_FUNCTION_TRACE_U32(ut_release_owner_id, owner_id);
+
+	/* Always clear the input owner_id (zero is an invalid ID) */
+
+	*owner_id_ptr = 0;
+
+	/* Zero is not a valid owner_ID */
+
+	if (owner_id == 0) {
+		ACPI_ERROR((AE_INFO, "Invalid OwnerId: 0x%2.2X", owner_id));
+		return_VOID;
+	}
+
+	/* Mutex for the global ID mask */
+
+	status = acpi_ut_acquire_mutex(ACPI_MTX_CACHES);
+	if (ACPI_FAILURE(status)) {
+		return_VOID;
+	}
+
+	/* Normalize the ID to zero */
+
+	owner_id--;
+
+	/* Decode ID to index/offset pair */
+
+	index = ACPI_DIV_32(owner_id);
+	bit = 1 << ACPI_MOD_32(owner_id);
+
+	/* Free the owner ID only if it is valid */
+
+	if (acpi_gbl_owner_id_mask[index] & bit) {
+		acpi_gbl_owner_id_mask[index] ^= bit;
+	} else {
+		ACPI_ERROR((AE_INFO,
+			    "Release of non-allocated OwnerId: 0x%2.2X",
+			    owner_id + 1));
+	}
+
+	(void)acpi_ut_release_mutex(ACPI_MTX_CACHES);
+	return_VOID;
+}
diff --git a/drivers/acpi/acpica/utstring.c b/drivers/acpi/acpica/utstring.c
new file mode 100644
index 000000000000..41702658c45b
--- /dev/null
+++ b/drivers/acpi/acpica/utstring.c
@@ -0,0 +1,574 @@
+/*******************************************************************************
+ *
+ * Module Name: utstring - Common functions for strings and characters
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2012, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acnamesp.h"
+
+#define _COMPONENT          ACPI_UTILITIES
+ACPI_MODULE_NAME("utstring")
+
+/*
+ * Non-ANSI C library functions - strlwr, strupr, stricmp, and a 64-bit
+ * version of strtoul.
+ */
+#ifdef ACPI_ASL_COMPILER
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_strlwr (strlwr)
+ *
+ * PARAMETERS:  src_string      - The source string to convert
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Convert string to lowercase
+ *
+ * NOTE: This is not a POSIX function, so it appears here, not in utclib.c
+ *
+ ******************************************************************************/
+void acpi_ut_strlwr(char *src_string)
+{
+	char *string;
+
+	ACPI_FUNCTION_ENTRY();
+
+	if (!src_string) {
+		return;
+	}
+
+	/* Walk entire string, lowercasing the letters */
+
+	for (string = src_string; *string; string++) {
+		*string = (char)ACPI_TOLOWER(*string);
+	}
+
+	return;
+}
+
+/******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_stricmp (stricmp)
+ *
+ * PARAMETERS:  string1             - first string to compare
+ *              string2             - second string to compare
+ *
+ * RETURN:      int that signifies string relationship. Zero means strings
+ *              are equal.
+ *
+ * DESCRIPTION: Implementation of the non-ANSI stricmp function (compare
+ *              strings with no case sensitivity)
+ *
+ ******************************************************************************/
+
+int acpi_ut_stricmp(char *string1, char *string2)
+{
+	int c1;
+	int c2;
+
+	do {
+		c1 = tolower((int)*string1);
+		c2 = tolower((int)*string2);
+
+		string1++;
+		string2++;
+	}
+	while ((c1 == c2) && (c1));
+
+	return (c1 - c2);
+}
+#endif
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_strupr (strupr)
+ *
+ * PARAMETERS:  src_string      - The source string to convert
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Convert string to uppercase
+ *
+ * NOTE: This is not a POSIX function, so it appears here, not in utclib.c
+ *
+ ******************************************************************************/
+
+void acpi_ut_strupr(char *src_string)
+{
+	char *string;
+
+	ACPI_FUNCTION_ENTRY();
+
+	if (!src_string) {
+		return;
+	}
+
+	/* Walk entire string, uppercasing the letters */
+
+	for (string = src_string; *string; string++) {
+		*string = (char)ACPI_TOUPPER(*string);
+	}
+
+	return;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_strtoul64
+ *
+ * PARAMETERS:  string          - Null terminated string
+ *              base            - Radix of the string: 16 or ACPI_ANY_BASE;
+ *                                ACPI_ANY_BASE means 'in behalf of to_integer'
+ *              ret_integer     - Where the converted integer is returned
+ *
+ * RETURN:      Status and Converted value
+ *
+ * DESCRIPTION: Convert a string into an unsigned value. Performs either a
+ *              32-bit or 64-bit conversion, depending on the current mode
+ *              of the interpreter.
+ *              NOTE: Does not support Octal strings, not needed.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ut_strtoul64(char *string, u32 base, u64 *ret_integer)
+{
+	u32 this_digit = 0;
+	u64 return_value = 0;
+	u64 quotient;
+	u64 dividend;
+	u32 to_integer_op = (base == ACPI_ANY_BASE);
+	u32 mode32 = (acpi_gbl_integer_byte_width == 4);
+	u8 valid_digits = 0;
+	u8 sign_of0x = 0;
+	u8 term = 0;
+
+	ACPI_FUNCTION_TRACE_STR(ut_stroul64, string);
+
+	switch (base) {
+	case ACPI_ANY_BASE:
+	case 16:
+		break;
+
+	default:
+		/* Invalid Base */
+		return_ACPI_STATUS(AE_BAD_PARAMETER);
+	}
+
+	if (!string) {
+		goto error_exit;
+	}
+
+	/* Skip over any white space in the buffer */
+
+	while ((*string) && (ACPI_IS_SPACE(*string) || *string == '\t')) {
+		string++;
+	}
+
+	if (to_integer_op) {
+		/*
+		 * Base equal to ACPI_ANY_BASE means 'ToInteger operation case'.
+		 * We need to determine if it is decimal or hexadecimal.
+		 */
+		if ((*string == '0') && (ACPI_TOLOWER(*(string + 1)) == 'x')) {
+			sign_of0x = 1;
+			base = 16;
+
+			/* Skip over the leading '0x' */
+			string += 2;
+		} else {
+			base = 10;
+		}
+	}
+
+	/* Any string left? Check that '0x' is not followed by white space. */
+
+	if (!(*string) || ACPI_IS_SPACE(*string) || *string == '\t') {
+		if (to_integer_op) {
+			goto error_exit;
+		} else {
+			goto all_done;
+		}
+	}
+
+	/*
+	 * Perform a 32-bit or 64-bit conversion, depending upon the current
+	 * execution mode of the interpreter
+	 */
+	dividend = (mode32) ? ACPI_UINT32_MAX : ACPI_UINT64_MAX;
+
+	/* Main loop: convert the string to a 32- or 64-bit integer */
+
+	while (*string) {
+		if (ACPI_IS_DIGIT(*string)) {
+
+			/* Convert ASCII 0-9 to Decimal value */
+
+			this_digit = ((u8)*string) - '0';
+		} else if (base == 10) {
+
+			/* Digit is out of range; possible in to_integer case only */
+
+			term = 1;
+		} else {
+			this_digit = (u8)ACPI_TOUPPER(*string);
+			if (ACPI_IS_XDIGIT((char)this_digit)) {
+
+				/* Convert ASCII Hex char to value */
+
+				this_digit = this_digit - 'A' + 10;
+			} else {
+				term = 1;
+			}
+		}
+
+		if (term) {
+			if (to_integer_op) {
+				goto error_exit;
+			} else {
+				break;
+			}
+		} else if ((valid_digits == 0) && (this_digit == 0)
+			   && !sign_of0x) {
+
+			/* Skip zeros */
+			string++;
+			continue;
+		}
+
+		valid_digits++;
+
+		if (sign_of0x
+		    && ((valid_digits > 16)
+			|| ((valid_digits > 8) && mode32))) {
+			/*
+			 * This is to_integer operation case.
+			 * No any restrictions for string-to-integer conversion,
+			 * see ACPI spec.
+			 */
+			goto error_exit;
+		}
+
+		/* Divide the digit into the correct position */
+
+		(void)acpi_ut_short_divide((dividend - (u64)this_digit),
+					   base, &quotient, NULL);
+
+		if (return_value > quotient) {
+			if (to_integer_op) {
+				goto error_exit;
+			} else {
+				break;
+			}
+		}
+
+		return_value *= base;
+		return_value += this_digit;
+		string++;
+	}
+
+	/* All done, normal exit */
+
+      all_done:
+
+	ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Converted value: %8.8X%8.8X\n",
+			  ACPI_FORMAT_UINT64(return_value)));
+
+	*ret_integer = return_value;
+	return_ACPI_STATUS(AE_OK);
+
+      error_exit:
+	/* Base was set/validated above */
+
+	if (base == 10) {
+		return_ACPI_STATUS(AE_BAD_DECIMAL_CONSTANT);
+	} else {
+		return_ACPI_STATUS(AE_BAD_HEX_CONSTANT);
+	}
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_print_string
+ *
+ * PARAMETERS:  string          - Null terminated ASCII string
+ *              max_length      - Maximum output length
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Dump an ASCII string with support for ACPI-defined escape
+ *              sequences.
+ *
+ ******************************************************************************/
+
+void acpi_ut_print_string(char *string, u8 max_length)
+{
+	u32 i;
+
+	if (!string) {
+		acpi_os_printf("<\"NULL STRING PTR\">");
+		return;
+	}
+
+	acpi_os_printf("\"");
+	for (i = 0; string[i] && (i < max_length); i++) {
+
+		/* Escape sequences */
+
+		switch (string[i]) {
+		case 0x07:
+			acpi_os_printf("\\a");	/* BELL */
+			break;
+
+		case 0x08:
+			acpi_os_printf("\\b");	/* BACKSPACE */
+			break;
+
+		case 0x0C:
+			acpi_os_printf("\\f");	/* FORMFEED */
+			break;
+
+		case 0x0A:
+			acpi_os_printf("\\n");	/* LINEFEED */
+			break;
+
+		case 0x0D:
+			acpi_os_printf("\\r");	/* CARRIAGE RETURN */
+			break;
+
+		case 0x09:
+			acpi_os_printf("\\t");	/* HORIZONTAL TAB */
+			break;
+
+		case 0x0B:
+			acpi_os_printf("\\v");	/* VERTICAL TAB */
+			break;
+
+		case '\'':	/* Single Quote */
+		case '\"':	/* Double Quote */
+		case '\\':	/* Backslash */
+			acpi_os_printf("\\%c", (int)string[i]);
+			break;
+
+		default:
+
+			/* Check for printable character or hex escape */
+
+			if (ACPI_IS_PRINT(string[i])) {
+				/* This is a normal character */
+
+				acpi_os_printf("%c", (int)string[i]);
+			} else {
+				/* All others will be Hex escapes */
+
+				acpi_os_printf("\\x%2.2X", (s32) string[i]);
+			}
+			break;
+		}
+	}
+	acpi_os_printf("\"");
+
+	if (i == max_length && string[i]) {
+		acpi_os_printf("...");
+	}
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_valid_acpi_char
+ *
+ * PARAMETERS:  char            - The character to be examined
+ *              position        - Byte position (0-3)
+ *
+ * RETURN:      TRUE if the character is valid, FALSE otherwise
+ *
+ * DESCRIPTION: Check for a valid ACPI character. Must be one of:
+ *              1) Upper case alpha
+ *              2) numeric
+ *              3) underscore
+ *
+ *              We allow a '!' as the last character because of the ASF! table
+ *
+ ******************************************************************************/
+
+u8 acpi_ut_valid_acpi_char(char character, u32 position)
+{
+
+	if (!((character >= 'A' && character <= 'Z') ||
+	      (character >= '0' && character <= '9') || (character == '_'))) {
+
+		/* Allow a '!' in the last position */
+
+		if (character == '!' && position == 3) {
+			return (TRUE);
+		}
+
+		return (FALSE);
+	}
+
+	return (TRUE);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_valid_acpi_name
+ *
+ * PARAMETERS:  name            - The name to be examined
+ *
+ * RETURN:      TRUE if the name is valid, FALSE otherwise
+ *
+ * DESCRIPTION: Check for a valid ACPI name. Each character must be one of:
+ *              1) Upper case alpha
+ *              2) numeric
+ *              3) underscore
+ *
+ ******************************************************************************/
+
+u8 acpi_ut_valid_acpi_name(u32 name)
+{
+	u32 i;
+
+	ACPI_FUNCTION_ENTRY();
+
+	for (i = 0; i < ACPI_NAME_SIZE; i++) {
+		if (!acpi_ut_valid_acpi_char
+		    ((ACPI_CAST_PTR(char, &name))[i], i)) {
+			return (FALSE);
+		}
+	}
+
+	return (TRUE);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_repair_name
+ *
+ * PARAMETERS:  name            - The ACPI name to be repaired
+ *
+ * RETURN:      Repaired version of the name
+ *
+ * DESCRIPTION: Repair an ACPI name: Change invalid characters to '*' and
+ *              return the new name. NOTE: the Name parameter must reside in
+ *              read/write memory, cannot be a const.
+ *
+ * An ACPI Name must consist of valid ACPI characters. We will repair the name
+ * if necessary because we don't want to abort because of this, but we want
+ * all namespace names to be printable. A warning message is appropriate.
+ *
+ * This issue came up because there are in fact machines that exhibit
+ * this problem, and we want to be able to enable ACPI support for them,
+ * even though there are a few bad names.
+ *
+ ******************************************************************************/
+
+void acpi_ut_repair_name(char *name)
+{
+	u32 i;
+	u8 found_bad_char = FALSE;
+	u32 original_name;
+
+	ACPI_FUNCTION_NAME(ut_repair_name);
+
+	ACPI_MOVE_NAME(&original_name, name);
+
+	/* Check each character in the name */
+
+	for (i = 0; i < ACPI_NAME_SIZE; i++) {
+		if (acpi_ut_valid_acpi_char(name[i], i)) {
+			continue;
+		}
+
+		/*
+		 * Replace a bad character with something printable, yet technically
+		 * still invalid. This prevents any collisions with existing "good"
+		 * names in the namespace.
+		 */
+		name[i] = '*';
+		found_bad_char = TRUE;
+	}
+
+	if (found_bad_char) {
+
+		/* Report warning only if in strict mode or debug mode */
+
+		if (!acpi_gbl_enable_interpreter_slack) {
+			ACPI_WARNING((AE_INFO,
+				      "Invalid character(s) in name (0x%.8X), repaired: [%4.4s]",
+				      original_name, name));
+		} else {
+			ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+					  "Invalid character(s) in name (0x%.8X), repaired: [%4.4s]",
+					  original_name, name));
+		}
+	}
+}
+
+#if defined ACPI_ASL_COMPILER || defined ACPI_EXEC_APP
+/*******************************************************************************
+ *
+ * FUNCTION:    ut_convert_backslashes
+ *
+ * PARAMETERS:  pathname        - File pathname string to be converted
+ *
+ * RETURN:      Modifies the input Pathname
+ *
+ * DESCRIPTION: Convert all backslashes (0x5C) to forward slashes (0x2F) within
+ *              the entire input file pathname string.
+ *
+ ******************************************************************************/
+
+void ut_convert_backslashes(char *pathname)
+{
+
+	if (!pathname) {
+		return;
+	}
+
+	while (*pathname) {
+		if (*pathname == '\\') {
+			*pathname = '/';
+		}
+
+		pathname++;
+	}
+}
+#endif
-- 
cgit v1.2.3


From b43e1065cab4b5be90c016b2f076086b70cd1556 Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Sat, 12 Jan 2013 15:29:38 +0000
Subject: ACPICA: Cleanup table handler naming conflicts.

This is a cosmetic patch only. Comparison of the resulting binary showed
only line number differences.

This patch does not affect the generation of the Linux binary.
This patch decreases 44 lines of 20121114 divergence.diff.

There are naming conflicts between Linux and ACPICA on table handlers. This
patch cleans up this conflicts to reduce the source code diff between Linux
and ACPICA.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/acglobal.h | 2 +-
 drivers/acpi/acpica/tbxface.c  | 4 ++--
 drivers/acpi/numa.c            | 2 +-
 drivers/acpi/tables.c          | 6 +++---
 4 files changed, 7 insertions(+), 7 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h
index 864806e1ac54..585d364fb7e5 100644
--- a/drivers/acpi/acpica/acglobal.h
+++ b/drivers/acpi/acpica/acglobal.h
@@ -252,7 +252,7 @@ ACPI_EXTERN acpi_cache_t *acpi_gbl_operand_cache;
 ACPI_EXTERN struct acpi_global_notify_handler acpi_gbl_global_notify[2];
 ACPI_EXTERN acpi_exception_handler acpi_gbl_exception_handler;
 ACPI_EXTERN acpi_init_handler acpi_gbl_init_handler;
-ACPI_EXTERN acpi_tbl_handler acpi_gbl_table_handler;
+ACPI_EXTERN acpi_table_handler acpi_gbl_table_handler;
 ACPI_EXTERN void *acpi_gbl_table_handler_context;
 ACPI_EXTERN struct acpi_walk_state *acpi_gbl_breakpoint_walk;
 ACPI_EXTERN acpi_interface_handler acpi_gbl_interface_handler;
diff --git a/drivers/acpi/acpica/tbxface.c b/drivers/acpi/acpica/tbxface.c
index d102fe7f709b..2115f2242a29 100644
--- a/drivers/acpi/acpica/tbxface.c
+++ b/drivers/acpi/acpica/tbxface.c
@@ -436,7 +436,7 @@ ACPI_EXPORT_SYMBOL(acpi_get_table_by_index)
  *
  ******************************************************************************/
 acpi_status
-acpi_install_table_handler(acpi_tbl_handler handler, void *context)
+acpi_install_table_handler(acpi_table_handler handler, void *context)
 {
 	acpi_status status;
 
@@ -482,7 +482,7 @@ ACPI_EXPORT_SYMBOL(acpi_install_table_handler)
  * DESCRIPTION: Remove table event handler
  *
  ******************************************************************************/
-acpi_status acpi_remove_table_handler(acpi_tbl_handler handler)
+acpi_status acpi_remove_table_handler(acpi_table_handler handler)
 {
 	acpi_status status;
 
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index cb31298ca684..5ddbc65e0f6e 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -273,7 +273,7 @@ static int __init acpi_parse_srat(struct acpi_table_header *table)
 
 static int __init
 acpi_table_parse_srat(enum acpi_srat_type id,
-		      acpi_table_entry_handler handler, unsigned int max_entries)
+		      acpi_tbl_entry_handler handler, unsigned int max_entries)
 {
 	return acpi_table_parse_entries(ACPI_SIG_SRAT,
 					    sizeof(struct acpi_table_srat), id,
diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c
index 2572d9715bda..d67a1fe07f0e 100644
--- a/drivers/acpi/tables.c
+++ b/drivers/acpi/tables.c
@@ -204,7 +204,7 @@ int __init
 acpi_table_parse_entries(char *id,
 			     unsigned long table_size,
 			     int entry_id,
-			     acpi_table_entry_handler handler,
+			     acpi_tbl_entry_handler handler,
 			     unsigned int max_entries)
 {
 	struct acpi_table_header *table_header = NULL;
@@ -269,7 +269,7 @@ err:
 
 int __init
 acpi_table_parse_madt(enum acpi_madt_type id,
-		      acpi_table_entry_handler handler, unsigned int max_entries)
+		      acpi_tbl_entry_handler handler, unsigned int max_entries)
 {
 	return acpi_table_parse_entries(ACPI_SIG_MADT,
 					    sizeof(struct acpi_table_madt), id,
@@ -285,7 +285,7 @@ acpi_table_parse_madt(enum acpi_madt_type id,
  * Scan the ACPI System Descriptor Table (STD) for a table matching @id,
  * run @handler on it.  Return 0 if table found, return on if not.
  */
-int __init acpi_table_parse(char *id, acpi_table_handler handler)
+int __init acpi_table_parse(char *id, acpi_tbl_table_handler handler)
 {
 	struct acpi_table_header *table = NULL;
 	acpi_size tbl_size;
-- 
cgit v1.2.3


From abe99210e0f624cea39f1dc375ba818b201c0d7f Mon Sep 17 00:00:00 2001
From: Mika Westerberg <mika.westerberg@linux.intel.com>
Date: Fri, 11 Jan 2013 22:08:09 +0100
Subject: ACPI / scan: Fix check of device_attach() return value.

Since device_attach() returns 1 on success (a driver has been bound
to the device), the check against its return value in
acpi_bus_device_attach() should modified to take that into accout.
Make it so.

[rjw: Subject and changelog.]
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/scan.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index e380345b643a..bac357da3f29 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1593,7 +1593,7 @@ static acpi_status acpi_bus_device_attach(acpi_handle handle, u32 lvl_not_used,
 	if (!acpi_match_device_ids(device, acpi_platform_device_ids)) {
 		/* This is a known good platform device. */
 		acpi_create_platform_device(device);
-	} else if (device_attach(&device->dev)) {
+	} else if (device_attach(&device->dev) < 0) {
 		status = AE_CTRL_DEPTH;
 	}
 	return status;
-- 
cgit v1.2.3


From b17b537ac1429a609addb55bf985f5ebfcf4ae7b Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Tue, 15 Jan 2013 13:23:44 +0100
Subject: ACPI / scan: Drop the second argument of acpi_device_unregister()

Drop the second argument of acpi_device_unregister(), type, which is
not used by that function.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Toshi Kani <toshi.kani@hp.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
---
 drivers/acpi/scan.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index bac357da3f29..a26c09efc286 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -701,7 +701,7 @@ end:
 	return result;
 }
 
-static void acpi_device_unregister(struct acpi_device *device, int type)
+static void acpi_device_unregister(struct acpi_device *device)
 {
 	mutex_lock(&acpi_device_lock);
 	if (device->parent)
@@ -1385,7 +1385,7 @@ static int acpi_bus_remove(struct acpi_device *dev, int rmdevice)
 	if (!rmdevice)
 		return 0;
 
-	acpi_device_unregister(dev, ACPI_BUS_REMOVAL_EJECT);
+	acpi_device_unregister(dev);
 
 	return 0;
 }
@@ -1746,7 +1746,7 @@ int __init acpi_scan_init(void)
 		result = acpi_bus_scan_fixed();
 
 	if (result)
-		acpi_device_unregister(acpi_root, ACPI_BUS_REMOVAL_NORMAL);
+		acpi_device_unregister(acpi_root);
 	else
 		acpi_update_all_gpes();
 
-- 
cgit v1.2.3


From ae281795ec92d35dd1631401829124acab965b1f Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Tue, 15 Jan 2013 13:23:53 +0100
Subject: ACPI / scan: Drop the second argument of acpi_bus_trim()

All callers of acpi_bus_trim() pass 1 (true) as the second argument
of it, so remove that argument entirely and change acpi_bus_trim()
to always behave as though it were 1.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Toshi Kani <toshi.kani@hp.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
---
 drivers/acpi/dock.c |  2 +-
 drivers/acpi/scan.c | 16 ++++------------
 2 files changed, 5 insertions(+), 13 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c
index 9e31b2bd93d3..4a56a8b2e51e 100644
--- a/drivers/acpi/dock.c
+++ b/drivers/acpi/dock.c
@@ -339,7 +339,7 @@ static void dock_remove_acpi_device(acpi_handle handle)
 	int ret;
 
 	if (!acpi_bus_get_device(handle, &device)) {
-		ret = acpi_bus_trim(device, 1);
+		ret = acpi_bus_trim(device);
 		if (ret)
 			pr_debug("error removing bus, %x\n", -ret);
 	}
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index a26c09efc286..d14ce446b469 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -133,7 +133,7 @@ void acpi_bus_hot_remove_device(void *context)
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 		"Hot-removing device %s...\n", dev_name(&device->dev)));
 
-	if (acpi_bus_trim(device, 1)) {
+	if (acpi_bus_trim(device)) {
 		printk(KERN_ERR PREFIX
 				"Removing device failed\n");
 		goto err_out;
@@ -1374,7 +1374,7 @@ static int acpi_device_set_context(struct acpi_device *device)
 	return -ENODEV;
 }
 
-static int acpi_bus_remove(struct acpi_device *dev, int rmdevice)
+static int acpi_bus_remove(struct acpi_device *dev)
 {
 	if (!dev)
 		return -EINVAL;
@@ -1382,9 +1382,6 @@ static int acpi_bus_remove(struct acpi_device *dev, int rmdevice)
 	dev->removal_type = ACPI_BUS_REMOVAL_EJECT;
 	device_release_driver(&dev->dev);
 
-	if (!rmdevice)
-		return 0;
-
 	acpi_device_unregister(dev);
 
 	return 0;
@@ -1642,7 +1639,7 @@ int acpi_bus_add(acpi_handle handle)
 }
 EXPORT_SYMBOL(acpi_bus_add);
 
-int acpi_bus_trim(struct acpi_device *start, int rmdevice)
+int acpi_bus_trim(struct acpi_device *start)
 {
 	acpi_status status;
 	struct acpi_device *parent, *child;
@@ -1668,12 +1665,7 @@ int acpi_bus_trim(struct acpi_device *start, int rmdevice)
 			acpi_get_parent(phandle, &phandle);
 			child = parent;
 			parent = parent->parent;
-
-			if (level == 0)
-				err = acpi_bus_remove(child, rmdevice);
-			else
-				err = acpi_bus_remove(child, 1);
-
+			err = acpi_bus_remove(child);
 			continue;
 		}
 
-- 
cgit v1.2.3


From cecdb193c8d91a42d9489d00618cc3dfff92e55a Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Tue, 15 Jan 2013 13:24:02 +0100
Subject: ACPI / scan: Change the implementation of acpi_bus_trim()

The current acpi_bus_trim() implementation is not really
straightforward and may be simplified significantly by using
acpi_walk_namespace() with acpi_bus_remove() as a post-order
callback.

Observe that acpi_bus_remove(), as called by acpi_bus_trim(), cannot
actually fail, because its first argument is guaranteed not to be
NULL thanks to the acpi_bus_get_device() check in acpi_bus_trim(),
so simply move the acpi_bus_get_device() check to acpi_bus_remove()
and use acpi_walk_namespace() to execute it for every device under
start->handle as a post-order callback.  The, run it directly for
start->handle itself.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Toshi Kani <toshi.kani@hp.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
---
 drivers/acpi/scan.c | 64 +++++++++++++----------------------------------------
 1 file changed, 15 insertions(+), 49 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index d14ce446b469..1ee62bd25828 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1374,17 +1374,20 @@ static int acpi_device_set_context(struct acpi_device *device)
 	return -ENODEV;
 }
 
-static int acpi_bus_remove(struct acpi_device *dev)
+static acpi_status acpi_bus_remove(acpi_handle handle, u32 lvl_not_used,
+				   void *not_used, void **ret_not_used)
 {
-	if (!dev)
-		return -EINVAL;
+	struct acpi_device *dev = NULL;
+
+	if (acpi_bus_get_device(handle, &dev))
+		return AE_OK;
 
 	dev->removal_type = ACPI_BUS_REMOVAL_EJECT;
 	device_release_driver(&dev->dev);
 
 	acpi_device_unregister(dev);
 
-	return 0;
+	return AE_OK;
 }
 
 static int acpi_add_single_object(struct acpi_device **child,
@@ -1641,51 +1644,14 @@ EXPORT_SYMBOL(acpi_bus_add);
 
 int acpi_bus_trim(struct acpi_device *start)
 {
-	acpi_status status;
-	struct acpi_device *parent, *child;
-	acpi_handle phandle, chandle;
-	acpi_object_type type;
-	u32 level = 1;
-	int err = 0;
-
-	parent = start;
-	phandle = start->handle;
-	child = chandle = NULL;
-
-	while ((level > 0) && parent && (!err)) {
-		status = acpi_get_next_object(ACPI_TYPE_ANY, phandle,
-					      chandle, &chandle);
-
-		/*
-		 * If this scope is exhausted then move our way back up.
-		 */
-		if (ACPI_FAILURE(status)) {
-			level--;
-			chandle = phandle;
-			acpi_get_parent(phandle, &phandle);
-			child = parent;
-			parent = parent->parent;
-			err = acpi_bus_remove(child);
-			continue;
-		}
-
-		status = acpi_get_type(chandle, &type);
-		if (ACPI_FAILURE(status)) {
-			continue;
-		}
-		/*
-		 * If there is a device corresponding to chandle then
-		 * parse it (depth-first).
-		 */
-		if (acpi_bus_get_device(chandle, &child) == 0) {
-			level++;
-			phandle = chandle;
-			chandle = NULL;
-			parent = child;
-		}
-		continue;
-	}
-	return err;
+	/*
+	 * Execute acpi_bus_remove() as a post-order callback to remove device
+	 * nodes in the given namespace scope.
+	 */
+	acpi_walk_namespace(ACPI_TYPE_ANY, start->handle, ACPI_UINT32_MAX, NULL,
+			    acpi_bus_remove, NULL, NULL);
+	acpi_bus_remove(start->handle, 0, NULL, NULL);
+	return 0;
 }
 EXPORT_SYMBOL_GPL(acpi_bus_trim);
 
-- 
cgit v1.2.3


From 05404d8f7b5c831e1a2c24bb782f0fe8ea02354c Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Tue, 15 Jan 2013 13:24:13 +0100
Subject: ACPI / scan: Add second pass to acpi_bus_trim()

Make acpi_bus_trim() work in analogy with acpi_bus_scan() and carry
out two passes such that ACPI drivers will be detached from device
nodes being removed in the first pass and the device nodes themselves
will be removed in the second pass.

For this purpose split the driver unregistration out of
acpi_bus_remove() into a new routine, acpi_bus_device_detach(), that
will be executed by acpi_bus_trim() in the additional first pass as
a post-order callback.

This is necessary, because some ACPI drivers' .remove() routines
unregister struct device objects associated with the ACPI device
nodes being removed and that needs to happen while the ACPI
device nodes are still around (for example, in case they need to be
used for power management or similar things at that time).

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Toshi Kani <toshi.kani@hp.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
---
 drivers/acpi/scan.c | 46 ++++++++++++++++++++++++++++++----------------
 1 file changed, 30 insertions(+), 16 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 1ee62bd25828..d04d0b33656c 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1374,22 +1374,6 @@ static int acpi_device_set_context(struct acpi_device *device)
 	return -ENODEV;
 }
 
-static acpi_status acpi_bus_remove(acpi_handle handle, u32 lvl_not_used,
-				   void *not_used, void **ret_not_used)
-{
-	struct acpi_device *dev = NULL;
-
-	if (acpi_bus_get_device(handle, &dev))
-		return AE_OK;
-
-	dev->removal_type = ACPI_BUS_REMOVAL_EJECT;
-	device_release_driver(&dev->dev);
-
-	acpi_device_unregister(dev);
-
-	return AE_OK;
-}
-
 static int acpi_add_single_object(struct acpi_device **child,
 				  acpi_handle handle, int type,
 				  unsigned long long sta, bool match_driver)
@@ -1642,8 +1626,38 @@ int acpi_bus_add(acpi_handle handle)
 }
 EXPORT_SYMBOL(acpi_bus_add);
 
+static acpi_status acpi_bus_device_detach(acpi_handle handle, u32 lvl_not_used,
+					  void *not_used, void **ret_not_used)
+{
+	struct acpi_device *device = NULL;
+
+	if (!acpi_bus_get_device(handle, &device)) {
+		device->removal_type = ACPI_BUS_REMOVAL_EJECT;
+		device_release_driver(&device->dev);
+	}
+	return AE_OK;
+}
+
+static acpi_status acpi_bus_remove(acpi_handle handle, u32 lvl_not_used,
+				   void *not_used, void **ret_not_used)
+{
+	struct acpi_device *device = NULL;
+
+	if (!acpi_bus_get_device(handle, &device))
+		acpi_device_unregister(device);
+
+	return AE_OK;
+}
+
 int acpi_bus_trim(struct acpi_device *start)
 {
+	/*
+	 * Execute acpi_bus_device_detach() as a post-order callback to detach
+	 * all ACPI drivers from the device nodes being removed.
+	 */
+	acpi_walk_namespace(ACPI_TYPE_ANY, start->handle, ACPI_UINT32_MAX, NULL,
+			    acpi_bus_device_detach, NULL, NULL);
+	acpi_bus_device_detach(start->handle, 0, NULL, NULL);
 	/*
 	 * Execute acpi_bus_remove() as a post-order callback to remove device
 	 * nodes in the given namespace scope.
-- 
cgit v1.2.3


From 5993c4670ea2453ef5abb45b312f150e994e6eb9 Mon Sep 17 00:00:00 2001
From: Yinghai Lu <yinghai@kernel.org>
Date: Fri, 11 Jan 2013 22:40:41 +0000
Subject: ACPI: update ej_event interface to take acpi_device

Should use acpi_device pointer directly instead of use handle and
get the device pointer again later.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpi_memhotplug.c  |  2 +-
 drivers/acpi/processor_driver.c |  2 +-
 drivers/acpi/scan.c             | 14 ++++----------
 3 files changed, 6 insertions(+), 12 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c
index 327ab4459558..eaddb7a89c70 100644
--- a/drivers/acpi/acpi_memhotplug.c
+++ b/drivers/acpi/acpi_memhotplug.c
@@ -361,7 +361,7 @@ static void acpi_memory_device_notify(acpi_handle handle, u32 event, void *data)
 			break;
 		}
 
-		ej_event->handle = handle;
+		ej_event->device = device;
 		ej_event->event = ACPI_NOTIFY_EJECT_REQUEST;
 		acpi_os_hotplug_execute(acpi_bus_hot_remove_device,
 					(void *)ej_event);
diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c
index 0777663f443e..a24ee43e06e4 100644
--- a/drivers/acpi/processor_driver.c
+++ b/drivers/acpi/processor_driver.c
@@ -733,7 +733,7 @@ static void acpi_processor_hotplug_notify(acpi_handle handle,
 			break;
 		}
 
-		ej_event->handle = handle;
+		ej_event->device = device;
 		ej_event->event = ACPI_NOTIFY_EJECT_REQUEST;
 		acpi_os_hotplug_execute(acpi_bus_hot_remove_device,
 					(void *)ej_event);
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index d04d0b33656c..388b59c096dc 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -116,20 +116,14 @@ static DEVICE_ATTR(modalias, 0444, acpi_device_modalias_show, NULL);
 void acpi_bus_hot_remove_device(void *context)
 {
 	struct acpi_eject_event *ej_event = (struct acpi_eject_event *) context;
-	struct acpi_device *device;
-	acpi_handle handle = ej_event->handle;
+	struct acpi_device *device = ej_event->device;
+	acpi_handle handle = device->handle;
 	acpi_handle temp;
 	struct acpi_object_list arg_list;
 	union acpi_object arg;
 	acpi_status status = AE_OK;
 	u32 ost_code = ACPI_OST_SC_NON_SPECIFIC_FAILURE; /* default */
 
-	if (acpi_bus_get_device(handle, &device))
-		goto err_out;
-
-	if (!device)
-		goto err_out;
-
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 		"Hot-removing device %s...\n", dev_name(&device->dev)));
 
@@ -215,7 +209,7 @@ acpi_eject_store(struct device *d, struct device_attribute *attr,
 		goto err;
 	}
 
-	ej_event->handle = acpi_device->handle;
+	ej_event->device = acpi_device;
 	if (acpi_device->flags.eject_pending) {
 		/* event originated from ACPI eject notification */
 		ej_event->event = ACPI_NOTIFY_EJECT_REQUEST;
@@ -223,7 +217,7 @@ acpi_eject_store(struct device *d, struct device_attribute *attr,
 	} else {
 		/* event originated from user */
 		ej_event->event = ACPI_OST_EC_OSPM_EJECT;
-		(void) acpi_evaluate_hotplug_ost(ej_event->handle,
+		(void) acpi_evaluate_hotplug_ost(acpi_device->handle,
 			ej_event->event, ACPI_OST_SC_EJECT_IN_PROGRESS, NULL);
 	}
 
-- 
cgit v1.2.3


From bc9b6407bd6df3ab7189e5622816bbc11ae9d2d8 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 17 Jan 2013 14:11:05 +0100
Subject: ACPI / PM: Rework the handling of devices depending on power
 resources

Commit 0090def6 (ACPI: Add interface to register/unregister device
to/from power resources) made it possible to indicate to the ACPI
core that if the given device depends on any power resources, then
it should be resumed as soon as all of the power resources required
by it to transition to the D0 power state have been turned on.

Unfortunately, however, this was a mistake, because all devices
depending on power resources should be treated this way (i.e. they
should be resumed when all power resources required by their D0
state have been turned on) and for the majority of those devices
the ACPI core can figure out by itself which (physical) devices
depend on what power resources.

For this reason, replace the code added by commit 0090def6 with a
new, much more straightforward, mechanism that will be used
internally by the ACPI core and remove all references to that code
from kernel subsystems using ACPI.

For the cases when there are (physical) devices that should be
resumed whenever a not directly related ACPI device node goes into
D0 as a result of power resources configuration changes, like in
the SATA case, add two new routines, acpi_dev_pm_add_dependent()
and acpi_dev_pm_remove_dependent(), allowing subsystems to manage
such dependencies.  Convert the SATA subsystem to use the new
functions accordingly.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/device_pm.c |  56 ++++++++++++
 drivers/acpi/internal.h  |   1 +
 drivers/acpi/power.c     | 219 ++++++++++++++++++-----------------------------
 drivers/acpi/scan.c      |   8 ++
 4 files changed, 147 insertions(+), 137 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c
index 995019063f64..8be4b29e38aa 100644
--- a/drivers/acpi/device_pm.c
+++ b/drivers/acpi/device_pm.c
@@ -665,3 +665,59 @@ void acpi_dev_pm_detach(struct device *dev, bool power_off)
 	}
 }
 EXPORT_SYMBOL_GPL(acpi_dev_pm_detach);
+
+/**
+ * acpi_dev_pm_add_dependent - Add physical device depending for PM.
+ * @handle: Handle of ACPI device node.
+ * @depdev: Device depending on that node for PM.
+ */
+void acpi_dev_pm_add_dependent(acpi_handle handle, struct device *depdev)
+{
+	struct acpi_device_physical_node *dep;
+	struct acpi_device *adev;
+
+	if (!depdev || acpi_bus_get_device(handle, &adev))
+		return;
+
+	mutex_lock(&adev->physical_node_lock);
+
+	list_for_each_entry(dep, &adev->power_dependent, node)
+		if (dep->dev == depdev)
+			goto out;
+
+	dep = kzalloc(sizeof(*dep), GFP_KERNEL);
+	if (dep) {
+		dep->dev = depdev;
+		list_add_tail(&dep->node, &adev->power_dependent);
+	}
+
+ out:
+	mutex_unlock(&adev->physical_node_lock);
+}
+EXPORT_SYMBOL_GPL(acpi_dev_pm_add_dependent);
+
+/**
+ * acpi_dev_pm_remove_dependent - Remove physical device depending for PM.
+ * @handle: Handle of ACPI device node.
+ * @depdev: Device depending on that node for PM.
+ */
+void acpi_dev_pm_remove_dependent(acpi_handle handle, struct device *depdev)
+{
+	struct acpi_device_physical_node *dep;
+	struct acpi_device *adev;
+
+	if (!depdev || acpi_bus_get_device(handle, &adev))
+		return;
+
+	mutex_lock(&adev->physical_node_lock);
+
+	list_for_each_entry(dep, &adev->power_dependent, node)
+		if (dep->dev == depdev) {
+			list_del(&dep->node);
+			kfree(dep);
+			break;
+		}
+
+	mutex_unlock(&adev->physical_node_lock);
+}
+EXPORT_SYMBOL_GPL(acpi_dev_pm_remove_dependent);
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index e050254ae143..b79b4258bd6b 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -38,6 +38,7 @@ static inline void acpi_debugfs_init(void) { return; }
                                   Power Resource
    -------------------------------------------------------------------------- */
 int acpi_power_init(void);
+void acpi_power_add_remove_device(struct acpi_device *adev, bool add);
 int acpi_device_sleep_wake(struct acpi_device *dev,
                            int enable, int sleep_state, int dev_state);
 int acpi_power_get_inferred_state(struct acpi_device *device, int *state);
diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index 6e7b9d523812..659386c4f0cb 100644
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -83,31 +83,20 @@ static struct acpi_driver acpi_power_driver = {
 	.drv.pm = &acpi_power_pm,
 };
 
-/*
- * A power managed device
- * A device may rely on multiple power resources.
- * */
-struct acpi_power_managed_device {
-	struct device *dev; /* The physical device */
-	acpi_handle *handle;
-};
-
-struct acpi_power_resource_device {
-	struct acpi_power_managed_device *device;
-	struct acpi_power_resource_device *next;
+struct acpi_power_dependent_device {
+	struct list_head node;
+	struct acpi_device *adev;
+	struct work_struct work;
 };
 
 struct acpi_power_resource {
-	struct acpi_device * device;
+	struct acpi_device *device;
+	struct list_head dependent;
 	acpi_bus_id name;
 	u32 system_level;
 	u32 order;
 	unsigned int ref_count;
 	struct mutex resource_lock;
-
-	/* List of devices relying on this power resource */
-	struct acpi_power_resource_device *devices;
-	struct mutex devices_lock;
 };
 
 static struct list_head acpi_power_resource_list;
@@ -207,21 +196,30 @@ static int acpi_power_get_list_state(struct acpi_handle_list *list, int *state)
 	return 0;
 }
 
-/* Resume the device when all power resources in _PR0 are on */
-static void acpi_power_on_device(struct acpi_power_managed_device *device)
+static void acpi_power_resume_dependent(struct work_struct *work)
 {
-	struct acpi_device *acpi_dev;
-	acpi_handle handle = device->handle;
+	struct acpi_power_dependent_device *dep;
+	struct acpi_device_physical_node *pn;
+	struct acpi_device *adev;
 	int state;
 
-	if (acpi_bus_get_device(handle, &acpi_dev))
+	dep = container_of(work, struct acpi_power_dependent_device, work);
+	adev = dep->adev;
+	if (acpi_power_get_inferred_state(adev, &state))
 		return;
 
-	if(acpi_power_get_inferred_state(acpi_dev, &state))
+	if (state > ACPI_STATE_D0)
 		return;
 
-	if (state == ACPI_STATE_D0 && pm_runtime_suspended(device->dev))
-		pm_request_resume(device->dev);
+	mutex_lock(&adev->physical_node_lock);
+
+	list_for_each_entry(pn, &adev->physical_node_list, node)
+		pm_request_resume(pn->dev);
+
+	list_for_each_entry(pn, &adev->power_dependent, node)
+		pm_request_resume(pn->dev);
+
+	mutex_unlock(&adev->physical_node_lock);
 }
 
 static int __acpi_power_on(struct acpi_power_resource *resource)
@@ -244,9 +242,7 @@ static int __acpi_power_on(struct acpi_power_resource *resource)
 static int acpi_power_on(acpi_handle handle)
 {
 	int result = 0;
-	bool resume_device = false;
 	struct acpi_power_resource *resource = NULL;
-	struct acpi_power_resource_device *device_list;
 
 	result = acpi_power_get_context(handle, &resource);
 	if (result)
@@ -260,26 +256,17 @@ static int acpi_power_on(acpi_handle handle)
 				  resource->name));
 	} else {
 		result = __acpi_power_on(resource);
-		if (result)
+		if (result) {
 			resource->ref_count--;
-		else
-			resume_device = true;
-	}
+		} else {
+			struct acpi_power_dependent_device *dep;
 
-	mutex_unlock(&resource->resource_lock);
-
-	if (!resume_device)
-		return result;
-
-	mutex_lock(&resource->devices_lock);
-
-	device_list = resource->devices;
-	while (device_list) {
-		acpi_power_on_device(device_list->device);
-		device_list = device_list->next;
+			list_for_each_entry(dep, &resource->dependent, node)
+				schedule_work(&dep->work);
+		}
 	}
 
-	mutex_unlock(&resource->devices_lock);
+	mutex_unlock(&resource->resource_lock);
 
 	return result;
 }
@@ -357,119 +344,81 @@ static int acpi_power_on_list(struct acpi_handle_list *list)
 	return result;
 }
 
-static void __acpi_power_resource_unregister_device(struct device *dev,
-		acpi_handle res_handle)
+static void acpi_power_add_dependent(acpi_handle rhandle,
+				     struct acpi_device *adev)
 {
-	struct acpi_power_resource *resource = NULL;
-	struct acpi_power_resource_device *prev, *curr;
+	struct acpi_power_dependent_device *dep;
+	struct acpi_power_resource *resource;
 
-	if (acpi_power_get_context(res_handle, &resource))
+	if (!rhandle || !adev || acpi_power_get_context(rhandle, &resource))
 		return;
 
-	mutex_lock(&resource->devices_lock);
-	prev = NULL;
-	curr = resource->devices;
-	while (curr) {
-		if (curr->device->dev == dev) {
-			if (!prev)
-				resource->devices = curr->next;
-			else
-				prev->next = curr->next;
-
-			kfree(curr);
-			break;
-		}
-
-		prev = curr;
-		curr = curr->next;
-	}
-	mutex_unlock(&resource->devices_lock);
-}
-
-/* Unlink dev from all power resources in _PR0 */
-void acpi_power_resource_unregister_device(struct device *dev, acpi_handle handle)
-{
-	struct acpi_device *acpi_dev;
-	struct acpi_handle_list *list;
-	int i;
+	mutex_lock(&resource->resource_lock);
 
-	if (!dev || !handle)
-		return;
+	list_for_each_entry(dep, &resource->dependent, node)
+		if (dep->adev == adev)
+			goto out;
 
-	if (acpi_bus_get_device(handle, &acpi_dev))
-		return;
+	dep = kzalloc(sizeof(*dep), GFP_KERNEL);
+	if (!dep)
+		goto out;
 
-	list = &acpi_dev->power.states[ACPI_STATE_D0].resources;
+	dep->adev = adev;
+	INIT_WORK(&dep->work, acpi_power_resume_dependent);
+	list_add_tail(&dep->node, &resource->dependent);
 
-	for (i = 0; i < list->count; i++)
-		__acpi_power_resource_unregister_device(dev,
-			list->handles[i]);
+ out:
+	mutex_unlock(&resource->resource_lock);
 }
-EXPORT_SYMBOL_GPL(acpi_power_resource_unregister_device);
 
-static int __acpi_power_resource_register_device(
-	struct acpi_power_managed_device *powered_device, acpi_handle handle)
+static void acpi_power_remove_dependent(acpi_handle rhandle,
+					struct acpi_device *adev)
 {
-	struct acpi_power_resource *resource = NULL;
-	struct acpi_power_resource_device *power_resource_device;
-	int result;
+	struct acpi_power_dependent_device *dep;
+	struct acpi_power_resource *resource;
+	struct work_struct *work = NULL;
 
-	result = acpi_power_get_context(handle, &resource);
-	if (result)
-		return result;
+	if (!rhandle || !adev || acpi_power_get_context(rhandle, &resource))
+		return;
 
-	power_resource_device = kzalloc(
-		sizeof(*power_resource_device), GFP_KERNEL);
-	if (!power_resource_device)
-		return -ENOMEM;
+	mutex_lock(&resource->resource_lock);
 
-	power_resource_device->device = powered_device;
+	list_for_each_entry(dep, &resource->dependent, node)
+		if (dep->adev == adev) {
+			list_del(&dep->node);
+			work = &dep->work;
+			break;
+		}
 
-	mutex_lock(&resource->devices_lock);
-	power_resource_device->next = resource->devices;
-	resource->devices = power_resource_device;
-	mutex_unlock(&resource->devices_lock);
+	mutex_unlock(&resource->resource_lock);
 
-	return 0;
+	if (work) {
+		cancel_work_sync(work);
+		kfree(dep);
+	}
 }
 
-/* Link dev to all power resources in _PR0 */
-int acpi_power_resource_register_device(struct device *dev, acpi_handle handle)
+void acpi_power_add_remove_device(struct acpi_device *adev, bool add)
 {
-	struct acpi_device *acpi_dev;
-	struct acpi_handle_list *list;
-	struct acpi_power_managed_device *powered_device;
-	int i, ret;
+	if (adev->power.flags.power_resources) {
+		struct acpi_device_power_state *ps;
+		int j;
 
-	if (!dev || !handle)
-		return -ENODEV;
-
-	ret = acpi_bus_get_device(handle, &acpi_dev);
-	if (ret || !acpi_dev->power.flags.power_resources)
-		return -ENODEV;
+		ps = &adev->power.states[ACPI_STATE_D0];
+		for (j = 0; j < ps->resources.count; j++) {
+			acpi_handle rhandle = ps->resources.handles[j];
 
-	powered_device = kzalloc(sizeof(*powered_device), GFP_KERNEL);
-	if (!powered_device)
-		return -ENOMEM;
-
-	powered_device->dev = dev;
-	powered_device->handle = handle;
-
-	list = &acpi_dev->power.states[ACPI_STATE_D0].resources;
-
-	for (i = 0; i < list->count; i++) {
-		ret = __acpi_power_resource_register_device(powered_device,
-			list->handles[i]);
-
-		if (ret) {
-			acpi_power_resource_unregister_device(dev, handle);
-			break;
+			if (add)
+				acpi_power_add_dependent(rhandle, adev);
+			else
+				acpi_power_remove_dependent(rhandle, adev);
 		}
 	}
-
-	return ret;
 }
-EXPORT_SYMBOL_GPL(acpi_power_resource_register_device);
+
+/* --------------------------------------------------------------------------
+                             Device Power Management
+   -------------------------------------------------------------------------- */
 
 /**
  * acpi_device_sleep_wake - execute _DSW (Device Sleep Wake) or (deprecated in
@@ -623,10 +572,6 @@ int acpi_disable_wakeup_device_power(struct acpi_device *dev)
 	return err;
 }
 
-/* --------------------------------------------------------------------------
-                             Device Power Management
-   -------------------------------------------------------------------------- */
-
 int acpi_power_get_inferred_state(struct acpi_device *device, int *state)
 {
 	int result = 0;
@@ -725,7 +670,7 @@ static int acpi_power_add(struct acpi_device *device)
 
 	resource->device = device;
 	mutex_init(&resource->resource_lock);
-	mutex_init(&resource->devices_lock);
+	INIT_LIST_HEAD(&resource->dependent);
 	strcpy(resource->name, device->pnp.bus_id);
 	strcpy(acpi_device_name(device), ACPI_POWER_DEVICE_NAME);
 	strcpy(acpi_device_class(device), ACPI_POWER_CLASS);
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 7d164a966b0d..c6d60910e8a8 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -633,6 +633,7 @@ static int acpi_device_register(struct acpi_device *device)
 	INIT_LIST_HEAD(&device->wakeup_list);
 	INIT_LIST_HEAD(&device->physical_node_list);
 	mutex_init(&device->physical_node_lock);
+	INIT_LIST_HEAD(&device->power_dependent);
 
 	new_bus_id = kzalloc(sizeof(struct acpi_device_bus_id), GFP_KERNEL);
 	if (!new_bus_id) {
@@ -706,8 +707,14 @@ static void acpi_device_unregister(struct acpi_device *device)
 
 	acpi_detach_data(device->handle, acpi_bus_data_handler);
 
+	acpi_power_add_remove_device(device, false);
 	acpi_device_remove_files(device);
 	device_unregister(&device->dev);
+	/*
+	 * Drop the reference counts of all power resources the device depends
+	 * on and turn off the ones that have no more references.
+	 */
+	acpi_power_transition(device, ACPI_STATE_D3_COLD);
 }
 
 /* --------------------------------------------------------------------------
@@ -1441,6 +1448,7 @@ static int acpi_add_single_object(struct acpi_device **child,
 
 end:
 	if (!result) {
+		acpi_power_add_remove_device(device, true);
 		acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer);
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 			"Adding %s [%s] parent %s\n", dev_name(&device->dev),
-- 
cgit v1.2.3


From d43e167db44b37bb284dc72fff2c3b61bb155752 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 17 Jan 2013 14:11:05 +0100
Subject: ACPI / scan: More straightforward preparation of ACPI device objects

Simplify the code preparing struct acpi_device objects for
registration by removing useless code, moving different pieces of
code into the functions they belong to and making a couple of int
functions always returning 0 void.

This also fixes a possible memory leak in ACPI device registration
error code path by making acpi_device_register() detach data from
device->handle if device_register() fails and prepares the scanning
code for special-casing ACPI power resources (next patch).

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/scan.c | 178 ++++++++++++++++++----------------------------------
 1 file changed, 61 insertions(+), 117 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index c6d60910e8a8..02629a810c04 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -472,6 +472,7 @@ static void acpi_free_ids(struct acpi_device *device)
 		kfree(id->id);
 		kfree(id);
 	}
+	kfree(device->pnp.unique_id);
 }
 
 static void acpi_device_release(struct device *dev)
@@ -479,7 +480,6 @@ static void acpi_device_release(struct device *dev)
 	struct acpi_device *acpi_dev = to_acpi_device(dev);
 
 	acpi_free_ids(acpi_dev);
-	kfree(acpi_dev->pnp.unique_id);
 	kfree(acpi_dev);
 }
 
@@ -623,6 +623,18 @@ static int acpi_device_register(struct acpi_device *device)
 	struct acpi_device_bus_id *acpi_device_bus_id, *new_bus_id;
 	int found = 0;
 
+	if (device->handle) {
+		acpi_status status;
+
+		status = acpi_attach_data(device->handle, acpi_bus_data_handler,
+					  device);
+		if (ACPI_FAILURE(status)) {
+			acpi_handle_err(device->handle,
+					"Unable to attach device data\n");
+			return -ENODEV;
+		}
+	}
+
 	/*
 	 * Linkage
 	 * -------
@@ -637,8 +649,9 @@ static int acpi_device_register(struct acpi_device *device)
 
 	new_bus_id = kzalloc(sizeof(struct acpi_device_bus_id), GFP_KERNEL);
 	if (!new_bus_id) {
-		printk(KERN_ERR PREFIX "Memory allocation error\n");
-		return -ENOMEM;
+		pr_err(PREFIX "Memory allocation error\n");
+		result = -ENOMEM;
+		goto err_detach;
 	}
 
 	mutex_lock(&acpi_device_lock);
@@ -677,7 +690,7 @@ static int acpi_device_register(struct acpi_device *device)
 	result = device_register(&device->dev);
 	if (result) {
 		dev_err(&device->dev, "Error registering device\n");
-		goto end;
+		goto err;
 	}
 
 	result = acpi_device_setup_files(device);
@@ -687,12 +700,16 @@ static int acpi_device_register(struct acpi_device *device)
 
 	device->removal_type = ACPI_BUS_REMOVAL_NORMAL;
 	return 0;
-end:
+
+ err:
 	mutex_lock(&acpi_device_lock);
 	if (device->parent)
 		list_del(&device->node);
 	list_del(&device->wakeup_list);
 	mutex_unlock(&acpi_device_lock);
+
+ err_detach:
+	acpi_detach_data(device->handle, acpi_bus_data_handler);
 	return result;
 }
 
@@ -857,12 +874,6 @@ void acpi_bus_data_handler(acpi_handle handle, void *context)
 	return;
 }
 
-static int acpi_bus_get_perf_flags(struct acpi_device *device)
-{
-	device->performance.state = ACPI_STATE_UNKNOWN;
-	return 0;
-}
-
 static acpi_status
 acpi_bus_extract_wakeup_device_power_package(acpi_handle handle,
 					     struct acpi_device_wakeup *wakeup)
@@ -1013,12 +1024,25 @@ static void acpi_bus_get_wakeup_device_flags(struct acpi_device *device)
 
 static void acpi_bus_add_power_resource(acpi_handle handle);
 
-static int acpi_bus_get_power_flags(struct acpi_device *device)
+static void acpi_bus_get_power_flags(struct acpi_device *device)
 {
 	acpi_status status = 0;
 	acpi_handle handle = NULL;
 	u32 i = 0;
 
+	/* Power resources cannot be power manageable. */
+	if (device->device_type == ACPI_BUS_TYPE_POWER)
+		return;
+
+	/* Presence of _PS0|_PR0 indicates 'power manageable' */
+	status = acpi_get_handle(device->handle, "_PS0", &handle);
+	if (ACPI_FAILURE(status)) {
+		status = acpi_get_handle(device->handle, "_PR0", &handle);
+		if (ACPI_FAILURE(status))
+			return;
+	}
+
+	device->flags.power_manageable = 1;
 
 	/*
 	 * Power Management Flags
@@ -1084,16 +1108,13 @@ static int acpi_bus_get_power_flags(struct acpi_device *device)
 		device->power.states[ACPI_STATE_D3_COLD].flags.os_accessible = 1;
 
 	acpi_bus_init_power(device);
-
-	return 0;
 }
 
-static int acpi_bus_get_flags(struct acpi_device *device)
+static void acpi_bus_get_flags(struct acpi_device *device)
 {
 	acpi_status status = AE_OK;
 	acpi_handle temp = NULL;
 
-
 	/* Presence of _STA indicates 'dynamic_status' */
 	status = acpi_get_handle(device->handle, "_STA", &temp);
 	if (ACPI_SUCCESS(status))
@@ -1113,21 +1134,6 @@ static int acpi_bus_get_flags(struct acpi_device *device)
 		if (ACPI_SUCCESS(status))
 			device->flags.ejectable = 1;
 	}
-
-	/* Power resources cannot be power manageable. */
-	if (device->device_type == ACPI_BUS_TYPE_POWER)
-		return 0;
-
-	/* Presence of _PS0|_PR0 indicates 'power manageable' */
-	status = acpi_get_handle(device->handle, "_PS0", &temp);
-	if (ACPI_FAILURE(status))
-		status = acpi_get_handle(device->handle, "_PR0", &temp);
-	if (ACPI_SUCCESS(status))
-		device->flags.power_manageable = 1;
-
-	/* TBD: Performance management */
-
-	return 0;
 }
 
 static void acpi_device_get_busid(struct acpi_device *device)
@@ -1352,27 +1358,18 @@ static void acpi_device_set_id(struct acpi_device *device)
 	}
 }
 
-static int acpi_device_set_context(struct acpi_device *device)
+static void acpi_init_device_object(struct acpi_device *device,
+				     acpi_handle handle,
+				     int type, unsigned long long sta)
 {
-	acpi_status status;
-
-	/*
-	 * Context
-	 * -------
-	 * Attach this 'struct acpi_device' to the ACPI object.  This makes
-	 * resolutions from handle->device very efficient.  Fixed hardware
-	 * devices have no handles, so we skip them.
-	 */
-	if (!device->handle)
-		return 0;
-
-	status = acpi_attach_data(device->handle,
-				  acpi_bus_data_handler, device);
-	if (ACPI_SUCCESS(status))
-		return 0;
-
-	printk(KERN_ERR PREFIX "Error attaching device data\n");
-	return -ENODEV;
+	INIT_LIST_HEAD(&device->pnp.ids);
+	device->device_type = type;
+	device->handle = handle;
+	device->parent = acpi_bus_get_parent(handle);
+	STRUCT_TO_INT(device->status) = sta;
+	acpi_device_get_busid(device);
+	acpi_device_set_id(device);
+	acpi_bus_get_flags(device);
 }
 
 static int acpi_add_single_object(struct acpi_device **child,
@@ -1389,78 +1386,25 @@ static int acpi_add_single_object(struct acpi_device **child,
 		return -ENOMEM;
 	}
 
-	INIT_LIST_HEAD(&device->pnp.ids);
-	device->device_type = type;
-	device->handle = handle;
-	device->parent = acpi_bus_get_parent(handle);
-	STRUCT_TO_INT(device->status) = sta;
-
-	acpi_device_get_busid(device);
-
-	/*
-	 * Flags
-	 * -----
-	 * Note that we only look for object handles -- cannot evaluate objects
-	 * until we know the device is present and properly initialized.
-	 */
-	result = acpi_bus_get_flags(device);
-	if (result)
-		goto end;
-
-	/*
-	 * Initialize Device
-	 * -----------------
-	 * TBD: Synch with Core's enumeration/initialization process.
-	 */
-	acpi_device_set_id(device);
-
-	/*
-	 * Power Management
-	 * ----------------
-	 */
-	if (device->flags.power_manageable) {
-		result = acpi_bus_get_power_flags(device);
-		if (result)
-			goto end;
-	}
-
-	/*
-	 * Wakeup device management
-	 *-----------------------
-	 */
+	acpi_init_device_object(device, handle, type, sta);
+	acpi_bus_get_power_flags(device);
 	acpi_bus_get_wakeup_device_flags(device);
 
-	/*
-	 * Performance Management
-	 * ----------------------
-	 */
-	if (device->flags.performance_manageable) {
-		result = acpi_bus_get_perf_flags(device);
-		if (result)
-			goto end;
-	}
-
-	if ((result = acpi_device_set_context(device)))
-		goto end;
-
 	device->flags.match_driver = match_driver;
 	result = acpi_device_register(device);
-
-end:
-	if (!result) {
-		acpi_power_add_remove_device(device, true);
-		acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer);
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-			"Adding %s [%s] parent %s\n", dev_name(&device->dev),
-			 (char *) buffer.pointer,
-			 device->parent ? dev_name(&device->parent->dev) :
-					  "(null)"));
-		kfree(buffer.pointer);
-		*child = device;
-	} else
+	if (result) {
 		acpi_device_release(&device->dev);
+		return result;
+	}
 
-	return result;
+	acpi_power_add_remove_device(device, true);
+	acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer);
+	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Added %s [%s] parent %s\n",
+		dev_name(&device->dev), (char *) buffer.pointer,
+		device->parent ? dev_name(&device->parent->dev) : "(null)"));
+	kfree(buffer.pointer);
+	*child = device;
+	return 0;
 }
 
 #define ACPI_STA_DEFAULT (ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | \
-- 
cgit v1.2.3


From 82c7d5efaadf99fb4a26500cd5b59b6fd7659772 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 17 Jan 2013 14:11:05 +0100
Subject: ACPI / scan: Treat power resources in a special way

ACPI power resources need to be treated in a special way by the
namespace scanning code, because they need to be ready to use as
soon as they have been discovered (even before registering ACPI
device nodes using them for power management).

For this reason, it doesn't make sense to separate the preparation
of struct acpi_device objects representing them in the device
hierarchy from the creation of struct acpi_power_resource objects
actually used for power resource manipulation.  Accordingly, it
doesn't make sense to define non-empty .add() and .remove() callbacks
in the power resources "driver" (in fact, it is questionable whether
or not it is useful to register such a "driver" at all).

Rearrange the code in scan.c and power.c so that power resources are
initialized entirely by one routine, acpi_add_power_resource(), that
also prepares their struct acpi_device objects and registers them
with the driver core, telling it to use a special release routine,
acpi_release_power_resource(), for removing objects that represent
power resources from memory.  Make the ACPI namespace scanning code
in scan.c always use acpi_add_power_resource() for preparing and
registering objects that represent power resources.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/internal.h |  13 ++++
 drivers/acpi/power.c    | 157 ++++++++++++++++++++++--------------------------
 drivers/acpi/scan.c     |  47 ++++++---------
 3 files changed, 102 insertions(+), 115 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index b79b4258bd6b..ce6cb24de8c7 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -34,10 +34,23 @@ int acpi_debugfs_init(void);
 static inline void acpi_debugfs_init(void) { return; }
 #endif
 
+/* --------------------------------------------------------------------------
+                     Device Node Initialization / Removal
+   -------------------------------------------------------------------------- */
+#define ACPI_STA_DEFAULT (ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | \
+			  ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING)
+
+int acpi_device_register(struct acpi_device *device,
+			 void (*release)(struct device *));
+void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
+			     int type, unsigned long long sta);
+void acpi_free_ids(struct acpi_device *device);
+
 /* --------------------------------------------------------------------------
                                   Power Resource
    -------------------------------------------------------------------------- */
 int acpi_power_init(void);
+void acpi_add_power_resource(acpi_handle handle);
 void acpi_power_add_remove_device(struct acpi_device *adev, bool add);
 int acpi_device_sleep_wake(struct acpi_device *dev,
                            int enable, int sleep_state, int dev_state);
diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index 659386c4f0cb..b12933fd2e56 100644
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -58,8 +58,7 @@ ACPI_MODULE_NAME("power");
 #define ACPI_POWER_RESOURCE_STATE_ON	0x01
 #define ACPI_POWER_RESOURCE_STATE_UNKNOWN 0xFF
 
-static int acpi_power_add(struct acpi_device *device);
-static int acpi_power_remove(struct acpi_device *device, int type);
+static inline int acpi_power_add(struct acpi_device *device) { return 0; }
 
 static const struct acpi_device_id power_device_ids[] = {
 	{ACPI_POWER_HID, 0},
@@ -76,10 +75,7 @@ static struct acpi_driver acpi_power_driver = {
 	.name = "power",
 	.class = ACPI_POWER_CLASS,
 	.ids = power_device_ids,
-	.ops = {
-		.add = acpi_power_add,
-		.remove = acpi_power_remove,
-		},
+	.ops.add = acpi_power_add,
 	.drv.pm = &acpi_power_pm,
 };
 
@@ -90,9 +86,9 @@ struct acpi_power_dependent_device {
 };
 
 struct acpi_power_resource {
-	struct acpi_device *device;
+	struct acpi_device device;
 	struct list_head dependent;
-	acpi_bus_id name;
+	char *name;
 	u32 system_level;
 	u32 order;
 	unsigned int ref_count;
@@ -105,28 +101,14 @@ static struct list_head acpi_power_resource_list;
                              Power Resource Management
    -------------------------------------------------------------------------- */
 
-static int
-acpi_power_get_context(acpi_handle handle,
-		       struct acpi_power_resource **resource)
+static struct acpi_power_resource *acpi_power_get_context(acpi_handle handle)
 {
-	int result = 0;
-	struct acpi_device *device = NULL;
-
-
-	if (!resource)
-		return -ENODEV;
-
-	result = acpi_bus_get_device(handle, &device);
-	if (result) {
-		printk(KERN_WARNING PREFIX "Getting context [%p]\n", handle);
-		return result;
-	}
+	struct acpi_device *device;
 
-	*resource = acpi_driver_data(device);
-	if (!*resource)
-		return -ENODEV;
+	if (acpi_bus_get_device(handle, &device))
+		return NULL;
 
-	return 0;
+	return container_of(device, struct acpi_power_resource, device);
 }
 
 static int acpi_power_get_state(acpi_handle handle, int *state)
@@ -171,9 +153,9 @@ static int acpi_power_get_list_state(struct acpi_handle_list *list, int *state)
 		acpi_handle handle = list->handles[i];
 		int result;
 
-		result = acpi_power_get_context(handle, &resource);
-		if (result)
-			return result;
+		resource = acpi_power_get_context(handle);
+		if (!resource)
+			return -ENODEV;
 
 		mutex_lock(&resource->resource_lock);
 
@@ -226,12 +208,12 @@ static int __acpi_power_on(struct acpi_power_resource *resource)
 {
 	acpi_status status = AE_OK;
 
-	status = acpi_evaluate_object(resource->device->handle, "_ON", NULL, NULL);
+	status = acpi_evaluate_object(resource->device.handle, "_ON", NULL, NULL);
 	if (ACPI_FAILURE(status))
 		return -ENODEV;
 
 	/* Update the power resource's _device_ power state */
-	resource->device->power.state = ACPI_STATE_D0;
+	resource->device.power.state = ACPI_STATE_D0;
 
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Power resource [%s] turned on\n",
 			  resource->name));
@@ -242,11 +224,11 @@ static int __acpi_power_on(struct acpi_power_resource *resource)
 static int acpi_power_on(acpi_handle handle)
 {
 	int result = 0;
-	struct acpi_power_resource *resource = NULL;
+	struct acpi_power_resource *resource;
 
-	result = acpi_power_get_context(handle, &resource);
-	if (result)
-		return result;
+	resource = acpi_power_get_context(handle);
+	if (!resource)
+		return -ENODEV;
 
 	mutex_lock(&resource->resource_lock);
 
@@ -275,11 +257,11 @@ static int acpi_power_off(acpi_handle handle)
 {
 	int result = 0;
 	acpi_status status = AE_OK;
-	struct acpi_power_resource *resource = NULL;
+	struct acpi_power_resource *resource;
 
-	result = acpi_power_get_context(handle, &resource);
-	if (result)
-		return result;
+	resource = acpi_power_get_context(handle);
+	if (!resource)
+		return -ENODEV;
 
 	mutex_lock(&resource->resource_lock);
 
@@ -297,12 +279,12 @@ static int acpi_power_off(acpi_handle handle)
 		goto unlock;
 	}
 
-	status = acpi_evaluate_object(resource->device->handle, "_OFF", NULL, NULL);
+	status = acpi_evaluate_object(resource->device.handle, "_OFF", NULL, NULL);
 	if (ACPI_FAILURE(status)) {
 		result = -ENODEV;
 	} else {
 		/* Update the power resource's _device_ power state */
-		resource->device->power.state = ACPI_STATE_D3;
+		resource->device.power.state = ACPI_STATE_D3;
 
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 				  "Power resource [%s] turned off\n",
@@ -350,7 +332,11 @@ static void acpi_power_add_dependent(acpi_handle rhandle,
 	struct acpi_power_dependent_device *dep;
 	struct acpi_power_resource *resource;
 
-	if (!rhandle || !adev || acpi_power_get_context(rhandle, &resource))
+	if (!rhandle || !adev)
+		return;
+
+	resource = acpi_power_get_context(rhandle);
+	if (!resource)
 		return;
 
 	mutex_lock(&resource->resource_lock);
@@ -378,7 +364,11 @@ static void acpi_power_remove_dependent(acpi_handle rhandle,
 	struct acpi_power_resource *resource;
 	struct work_struct *work = NULL;
 
-	if (!rhandle || !adev || acpi_power_get_context(rhandle, &resource))
+	if (!rhandle || !adev)
+		return;
+
+	resource = acpi_power_get_context(rhandle);
+	if (!resource)
 		return;
 
 	mutex_lock(&resource->resource_lock);
@@ -648,46 +638,53 @@ int acpi_power_transition(struct acpi_device *device, int state)
 	return result;
 }
 
-/* --------------------------------------------------------------------------
-                                Driver Interface
-   -------------------------------------------------------------------------- */
+static void acpi_release_power_resource(struct device *dev)
+{
+	struct acpi_device *device = to_acpi_device(dev);
+	struct acpi_power_resource *resource;
+
+	acpi_free_ids(device);
+	resource = container_of(device, struct acpi_power_resource, device);
+	kfree(resource);
+}
 
-static int acpi_power_add(struct acpi_device *device)
+void acpi_add_power_resource(acpi_handle handle)
 {
-	int result = 0, state;
-	acpi_status status = AE_OK;
-	struct acpi_power_resource *resource = NULL;
+	struct acpi_power_resource *resource;
+	struct acpi_device *device = NULL;
 	union acpi_object acpi_object;
 	struct acpi_buffer buffer = { sizeof(acpi_object), &acpi_object };
+	acpi_status status;
+	int state, result = -ENODEV;
 
+	acpi_bus_get_device(handle, &device);
+	if (device)
+		return;
 
-	if (!device)
-		return -EINVAL;
-
-	resource = kzalloc(sizeof(struct acpi_power_resource), GFP_KERNEL);
+	resource = kzalloc(sizeof(*resource), GFP_KERNEL);
 	if (!resource)
-		return -ENOMEM;
+		return;
 
-	resource->device = device;
+	device = &resource->device;
+	acpi_init_device_object(device, handle, ACPI_BUS_TYPE_POWER,
+				ACPI_STA_DEFAULT);
 	mutex_init(&resource->resource_lock);
 	INIT_LIST_HEAD(&resource->dependent);
-	strcpy(resource->name, device->pnp.bus_id);
+	resource->name = device->pnp.bus_id;
 	strcpy(acpi_device_name(device), ACPI_POWER_DEVICE_NAME);
 	strcpy(acpi_device_class(device), ACPI_POWER_CLASS);
-	device->driver_data = resource;
 
 	/* Evalute the object to get the system level and resource order. */
-	status = acpi_evaluate_object(device->handle, NULL, NULL, &buffer);
-	if (ACPI_FAILURE(status)) {
-		result = -ENODEV;
-		goto end;
-	}
+	status = acpi_evaluate_object(handle, NULL, NULL, &buffer);
+	if (ACPI_FAILURE(status))
+		goto out;
+
 	resource->system_level = acpi_object.power_resource.system_level;
 	resource->order = acpi_object.power_resource.resource_order;
 
-	result = acpi_power_get_state(device->handle, &state);
+	result = acpi_power_get_state(handle, &state);
 	if (result)
-		goto end;
+		goto out;
 
 	switch (state) {
 	case ACPI_POWER_RESOURCE_STATE_ON:
@@ -698,34 +695,24 @@ static int acpi_power_add(struct acpi_device *device)
 		break;
 	default:
 		device->power.state = ACPI_STATE_UNKNOWN;
-		break;
 	}
 
 	printk(KERN_INFO PREFIX "%s [%s] (%s)\n", acpi_device_name(device),
 	       acpi_device_bid(device), state ? "on" : "off");
 
-      end:
+	device->flags.match_driver = true;
+	result = acpi_device_register(device, acpi_release_power_resource);
+
+ out:
 	if (result)
-		kfree(resource);
+		acpi_release_power_resource(&device->dev);
 
-	return result;
+	return;
 }
 
-static int acpi_power_remove(struct acpi_device *device, int type)
-{
-	struct acpi_power_resource *resource;
-
-	if (!device)
-		return -EINVAL;
-
-	resource = acpi_driver_data(device);
-	if (!resource)
-		return -EINVAL;
-
-	kfree(resource);
-
-	return 0;
-}
+/* --------------------------------------------------------------------------
+                                Driver Interface
+   -------------------------------------------------------------------------- */
 
 #ifdef CONFIG_PM_SLEEP
 static int acpi_power_resume(struct device *dev)
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 02629a810c04..952b08af91de 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -464,7 +464,7 @@ int acpi_match_device_ids(struct acpi_device *device,
 }
 EXPORT_SYMBOL(acpi_match_device_ids);
 
-static void acpi_free_ids(struct acpi_device *device)
+void acpi_free_ids(struct acpi_device *device)
 {
 	struct acpi_hardware_id *id, *tmp;
 
@@ -617,7 +617,8 @@ struct bus_type acpi_bus_type = {
 	.uevent		= acpi_device_uevent,
 };
 
-static int acpi_device_register(struct acpi_device *device)
+int acpi_device_register(struct acpi_device *device,
+			 void (*release)(struct device *))
 {
 	int result;
 	struct acpi_device_bus_id *acpi_device_bus_id, *new_bus_id;
@@ -686,7 +687,7 @@ static int acpi_device_register(struct acpi_device *device)
 	if (device->parent)
 		device->dev.parent = &device->parent->dev;
 	device->dev.bus = &acpi_bus_type;
-	device->dev.release = &acpi_device_release;
+	device->dev.release = release;
 	result = device_register(&device->dev);
 	if (result) {
 		dev_err(&device->dev, "Error registering device\n");
@@ -1022,18 +1023,12 @@ static void acpi_bus_get_wakeup_device_flags(struct acpi_device *device)
 				"error in _DSW or _PSW evaluation\n"));
 }
 
-static void acpi_bus_add_power_resource(acpi_handle handle);
-
 static void acpi_bus_get_power_flags(struct acpi_device *device)
 {
 	acpi_status status = 0;
 	acpi_handle handle = NULL;
 	u32 i = 0;
 
-	/* Power resources cannot be power manageable. */
-	if (device->device_type == ACPI_BUS_TYPE_POWER)
-		return;
-
 	/* Presence of _PS0|_PR0 indicates 'power manageable' */
 	status = acpi_get_handle(device->handle, "_PS0", &handle);
 	if (ACPI_FAILURE(status)) {
@@ -1068,8 +1063,10 @@ static void acpi_bus_get_power_flags(struct acpi_device *device)
 			int j;
 
 			device->power.flags.power_resources = 1;
-			for (j = 0; j < ps->resources.count; j++)
-				acpi_bus_add_power_resource(ps->resources.handles[j]);
+			for (j = 0; j < ps->resources.count; j++) {
+				acpi_handle rhandle = ps->resources.handles[j];
+				acpi_add_power_resource(rhandle);
+			}
 		}
 
 		/* Evaluate "_PSx" to see if we can do explicit sets */
@@ -1358,9 +1355,8 @@ static void acpi_device_set_id(struct acpi_device *device)
 	}
 }
 
-static void acpi_init_device_object(struct acpi_device *device,
-				     acpi_handle handle,
-				     int type, unsigned long long sta)
+void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
+			     int type, unsigned long long sta)
 {
 	INIT_LIST_HEAD(&device->pnp.ids);
 	device->device_type = type;
@@ -1391,7 +1387,7 @@ static int acpi_add_single_object(struct acpi_device **child,
 	acpi_bus_get_wakeup_device_flags(device);
 
 	device->flags.match_driver = match_driver;
-	result = acpi_device_register(device);
+	result = acpi_device_register(device, acpi_device_release);
 	if (result) {
 		acpi_device_release(&device->dev);
 		return result;
@@ -1407,19 +1403,6 @@ static int acpi_add_single_object(struct acpi_device **child,
 	return 0;
 }
 
-#define ACPI_STA_DEFAULT (ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | \
-			  ACPI_STA_DEVICE_UI      | ACPI_STA_DEVICE_FUNCTIONING)
-
-static void acpi_bus_add_power_resource(acpi_handle handle)
-{
-	struct acpi_device *device = NULL;
-
-	acpi_bus_get_device(handle, &device);
-	if (!device)
-		acpi_add_single_object(&device, handle, ACPI_BUS_TYPE_POWER,
-					ACPI_STA_DEFAULT, true);
-}
-
 static int acpi_bus_type_and_status(acpi_handle handle, int *type,
 				    unsigned long long *sta)
 {
@@ -1476,6 +1459,11 @@ static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl_not_used,
 	if (result)
 		return AE_OK;
 
+	if (type == ACPI_BUS_TYPE_POWER) {
+		acpi_add_power_resource(handle);
+		return AE_OK;
+	}
+
 	if (!(sta & ACPI_STA_DEVICE_PRESENT) &&
 	    !(sta & ACPI_STA_DEVICE_FUNCTIONING)) {
 		struct acpi_device_wakeup wakeup;
@@ -1488,8 +1476,7 @@ static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl_not_used,
 		return AE_CTRL_DEPTH;
 	}
 
-	acpi_add_single_object(&device, handle, type, sta,
-			       type == ACPI_BUS_TYPE_POWER);
+	acpi_add_single_object(&device, handle, type, sta, false);
 	if (!device)
 		return AE_CTRL_DEPTH;
 
-- 
cgit v1.2.3


From 781d737c7466845035e5ce02885c7436b5278b90 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 17 Jan 2013 14:11:06 +0100
Subject: ACPI: Drop power resources driver

The ACPI power resources driver is not very useful, because the only
thing it really does is to restore the state of the power resources
that were "on" before system suspend or hibernation, but that may be
achieved in a different way.

Drop the ACPI power resources driver entirely and add
acpi_resume_power_resources() that will walk the list of all
registered power resources during system resume and turn on the ones
that were "on" before the preceding system suspend or hibernation.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/power.c | 91 +++++++++++++++++++---------------------------------
 drivers/acpi/scan.c  |  1 -
 drivers/acpi/sleep.c |  2 ++
 drivers/acpi/sleep.h |  2 ++
 4 files changed, 37 insertions(+), 59 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index b12933fd2e56..29803857a2ef 100644
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -58,27 +58,6 @@ ACPI_MODULE_NAME("power");
 #define ACPI_POWER_RESOURCE_STATE_ON	0x01
 #define ACPI_POWER_RESOURCE_STATE_UNKNOWN 0xFF
 
-static inline int acpi_power_add(struct acpi_device *device) { return 0; }
-
-static const struct acpi_device_id power_device_ids[] = {
-	{ACPI_POWER_HID, 0},
-	{"", 0},
-};
-MODULE_DEVICE_TABLE(acpi, power_device_ids);
-
-#ifdef CONFIG_PM_SLEEP
-static int acpi_power_resume(struct device *dev);
-#endif
-static SIMPLE_DEV_PM_OPS(acpi_power_pm, NULL, acpi_power_resume);
-
-static struct acpi_driver acpi_power_driver = {
-	.name = "power",
-	.class = ACPI_POWER_CLASS,
-	.ids = power_device_ids,
-	.ops.add = acpi_power_add,
-	.drv.pm = &acpi_power_pm,
-};
-
 struct acpi_power_dependent_device {
 	struct list_head node;
 	struct acpi_device *adev;
@@ -87,6 +66,7 @@ struct acpi_power_dependent_device {
 
 struct acpi_power_resource {
 	struct acpi_device device;
+	struct list_head list_node;
 	struct list_head dependent;
 	char *name;
 	u32 system_level;
@@ -95,7 +75,8 @@ struct acpi_power_resource {
 	struct mutex resource_lock;
 };
 
-static struct list_head acpi_power_resource_list;
+static LIST_HEAD(acpi_power_resource_list);
+static DEFINE_MUTEX(power_resource_list_lock);
 
 /* --------------------------------------------------------------------------
                              Power Resource Management
@@ -643,8 +624,13 @@ static void acpi_release_power_resource(struct device *dev)
 	struct acpi_device *device = to_acpi_device(dev);
 	struct acpi_power_resource *resource;
 
-	acpi_free_ids(device);
 	resource = container_of(device, struct acpi_power_resource, device);
+
+	mutex_lock(&power_resource_list_lock);
+	list_del(&resource->list_node);
+	mutex_unlock(&power_resource_list_lock);
+
+	acpi_free_ids(device);
 	kfree(resource);
 }
 
@@ -677,14 +663,14 @@ void acpi_add_power_resource(acpi_handle handle)
 	/* Evalute the object to get the system level and resource order. */
 	status = acpi_evaluate_object(handle, NULL, NULL, &buffer);
 	if (ACPI_FAILURE(status))
-		goto out;
+		goto err;
 
 	resource->system_level = acpi_object.power_resource.system_level;
 	resource->order = acpi_object.power_resource.resource_order;
 
 	result = acpi_power_get_state(handle, &state);
 	if (result)
-		goto out;
+		goto err;
 
 	switch (state) {
 	case ACPI_POWER_RESOURCE_STATE_ON:
@@ -702,51 +688,40 @@ void acpi_add_power_resource(acpi_handle handle)
 
 	device->flags.match_driver = true;
 	result = acpi_device_register(device, acpi_release_power_resource);
-
- out:
 	if (result)
-		acpi_release_power_resource(&device->dev);
+		goto err;
 
+	mutex_lock(&power_resource_list_lock);
+	list_add(&resource->list_node, &acpi_power_resource_list);
+	mutex_unlock(&power_resource_list_lock);
 	return;
-}
 
-/* --------------------------------------------------------------------------
-                                Driver Interface
-   -------------------------------------------------------------------------- */
+ err:
+	acpi_release_power_resource(&device->dev);
+}
 
-#ifdef CONFIG_PM_SLEEP
-static int acpi_power_resume(struct device *dev)
+#ifdef CONFIG_ACPI_SLEEP
+void acpi_resume_power_resources(void)
 {
-	int result = 0, state;
-	struct acpi_device *device;
 	struct acpi_power_resource *resource;
 
-	if (!dev)
-		return -EINVAL;
+	mutex_lock(&power_resource_list_lock);
 
-	device = to_acpi_device(dev);
-	resource = acpi_driver_data(device);
-	if (!resource)
-		return -EINVAL;
-
-	mutex_lock(&resource->resource_lock);
+	list_for_each_entry(resource, &acpi_power_resource_list, list_node) {
+		int result, state;
 
-	result = acpi_power_get_state(device->handle, &state);
-	if (result)
-		goto unlock;
+		mutex_lock(&resource->resource_lock);
 
-	if (state == ACPI_POWER_RESOURCE_STATE_OFF && resource->ref_count)
-		result = __acpi_power_on(resource);
+		result = acpi_power_get_state(resource->device.handle, &state);
+		if (!result && state == ACPI_POWER_RESOURCE_STATE_OFF
+		    && resource->ref_count) {
+			dev_info(&resource->device.dev, "Turning ON\n");
+			__acpi_power_on(resource);
+		}
 
- unlock:
-	mutex_unlock(&resource->resource_lock);
+		mutex_unlock(&resource->resource_lock);
+	}
 
-	return result;
+	mutex_unlock(&power_resource_list_lock);
 }
 #endif
-
-int __init acpi_power_init(void)
-{
-	INIT_LIST_HEAD(&acpi_power_resource_list);
-	return acpi_bus_register_driver(&acpi_power_driver);
-}
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 952b08af91de..c7ea9c2649a4 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1636,7 +1636,6 @@ int __init acpi_scan_init(void)
 		printk(KERN_ERR PREFIX "Could not register bus type\n");
 	}
 
-	acpi_power_init();
 	acpi_pci_root_init();
 
 	/*
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 2fcc67d34b11..4ef0328579cc 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -386,6 +386,8 @@ static void acpi_pm_finish(void)
 
 	acpi_target_sleep_state = ACPI_STATE_S0;
 
+	acpi_resume_power_resources();
+
 	/* If we were woken with the fixed power button, provide a small
 	 * hint to userspace in the form of a wakeup event on the fixed power
 	 * button device (if it can be found).
diff --git a/drivers/acpi/sleep.h b/drivers/acpi/sleep.h
index 74d59c8f4678..0143540a2519 100644
--- a/drivers/acpi/sleep.h
+++ b/drivers/acpi/sleep.h
@@ -6,3 +6,5 @@ extern void acpi_disable_wakeup_devices(u8 sleep_state);
 
 extern struct list_head acpi_wakeup_device_list;
 extern struct mutex acpi_device_lock;
+
+extern void acpi_resume_power_resources(void);
-- 
cgit v1.2.3


From 722c929f32616943d2b67332068f09c08e81eec8 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 17 Jan 2013 14:11:06 +0100
Subject: ACPI: Do not use device power states of power resources

ACPI power resource objects have struct acpi_device components, but
they are only used for registering those resources in the device
hierarchy.  In particular, power state information stored in them is
completely useless (amnong other things, because the power resources
"devices" are not power manageable), so there is no reason for the
power resources management code to keep it up to date.

Remove the code updating device power states of power resources from
drivers/acpi/power.c.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/power.c | 23 +++--------------------
 1 file changed, 3 insertions(+), 20 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index 29803857a2ef..06ad05288af8 100644
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -193,9 +193,6 @@ static int __acpi_power_on(struct acpi_power_resource *resource)
 	if (ACPI_FAILURE(status))
 		return -ENODEV;
 
-	/* Update the power resource's _device_ power state */
-	resource->device.power.state = ACPI_STATE_D0;
-
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Power resource [%s] turned on\n",
 			  resource->name));
 
@@ -261,16 +258,12 @@ static int acpi_power_off(acpi_handle handle)
 	}
 
 	status = acpi_evaluate_object(resource->device.handle, "_OFF", NULL, NULL);
-	if (ACPI_FAILURE(status)) {
+	if (ACPI_FAILURE(status))
 		result = -ENODEV;
-	} else {
-		/* Update the power resource's _device_ power state */
-		resource->device.power.state = ACPI_STATE_D3;
-
+	else
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 				  "Power resource [%s] turned off\n",
 				  resource->name));
-	}
 
  unlock:
 	mutex_unlock(&resource->resource_lock);
@@ -659,6 +652,7 @@ void acpi_add_power_resource(acpi_handle handle)
 	resource->name = device->pnp.bus_id;
 	strcpy(acpi_device_name(device), ACPI_POWER_DEVICE_NAME);
 	strcpy(acpi_device_class(device), ACPI_POWER_CLASS);
+	device->power.state = ACPI_STATE_UNKNOWN;
 
 	/* Evalute the object to get the system level and resource order. */
 	status = acpi_evaluate_object(handle, NULL, NULL, &buffer);
@@ -672,17 +666,6 @@ void acpi_add_power_resource(acpi_handle handle)
 	if (result)
 		goto err;
 
-	switch (state) {
-	case ACPI_POWER_RESOURCE_STATE_ON:
-		device->power.state = ACPI_STATE_D0;
-		break;
-	case ACPI_POWER_RESOURCE_STATE_OFF:
-		device->power.state = ACPI_STATE_D3;
-		break;
-	default:
-		device->power.state = ACPI_STATE_UNKNOWN;
-	}
-
 	printk(KERN_INFO PREFIX "%s [%s] (%s)\n", acpi_device_name(device),
 	       acpi_device_bid(device), state ? "on" : "off");
 
-- 
cgit v1.2.3


From 0b224527323669c66e0a37ae05b04034bfcdce14 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 17 Jan 2013 14:11:06 +0100
Subject: ACPI / PM: Take order attribute of power resources into account

ACPI power resources have an order attribute that should be taken
into account when turning them on and off, but it is not used now.

Modify the power resources management code to preserve the
spec-compliant ordering of power resources that power states of
devices depend on (analogous changes will be done separately for
power resources used for wakeup).

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/internal.h |   2 +
 drivers/acpi/power.c    | 161 ++++++++++++++++++++++++++----------------------
 drivers/acpi/scan.c     |  31 ++++++++--
 3 files changed, 117 insertions(+), 77 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index ce6cb24de8c7..e28068a765a9 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -50,6 +50,8 @@ void acpi_free_ids(struct acpi_device *device);
                                   Power Resource
    -------------------------------------------------------------------------- */
 int acpi_power_init(void);
+void acpi_power_resources_list_add(acpi_handle handle, struct list_head *list);
+void acpi_power_resources_list_free(struct list_head *list);
 void acpi_add_power_resource(acpi_handle handle);
 void acpi_power_add_remove_device(struct acpi_device *adev, bool add);
 int acpi_device_sleep_wake(struct acpi_device *dev,
diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index 06ad05288af8..22a3d00d0359 100644
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -75,6 +75,11 @@ struct acpi_power_resource {
 	struct mutex resource_lock;
 };
 
+struct acpi_power_resource_entry {
+	struct list_head node;
+	struct acpi_power_resource *resource;
+};
+
 static LIST_HEAD(acpi_power_resource_list);
 static DEFINE_MUTEX(power_resource_list_lock);
 
@@ -92,6 +97,41 @@ static struct acpi_power_resource *acpi_power_get_context(acpi_handle handle)
 	return container_of(device, struct acpi_power_resource, device);
 }
 
+void acpi_power_resources_list_add(acpi_handle handle, struct list_head *list)
+{
+	struct acpi_power_resource *resource = acpi_power_get_context(handle);
+	struct acpi_power_resource_entry *entry;
+
+	if (!resource || !list)
+		return;
+
+	entry = kzalloc(sizeof(*entry), GFP_KERNEL);
+	if (!entry)
+		return;
+
+	entry->resource = resource;
+	if (!list_empty(list)) {
+		struct acpi_power_resource_entry *e;
+
+		list_for_each_entry(e, list, node)
+			if (e->resource->order > resource->order) {
+				list_add_tail(&entry->node, &e->node);
+				return;
+			}
+	}
+	list_add_tail(&entry->node, list);
+}
+
+void acpi_power_resources_list_free(struct list_head *list)
+{
+	struct acpi_power_resource_entry *entry, *e;
+
+	list_for_each_entry_safe(entry, e, list, node) {
+		list_del(&entry->node);
+		kfree(entry);
+	}
+}
+
 static int acpi_power_get_state(acpi_handle handle, int *state)
 {
 	acpi_status status = AE_OK;
@@ -119,31 +159,23 @@ static int acpi_power_get_state(acpi_handle handle, int *state)
 	return 0;
 }
 
-static int acpi_power_get_list_state(struct acpi_handle_list *list, int *state)
+static int acpi_power_get_list_state(struct list_head *list, int *state)
 {
+	struct acpi_power_resource_entry *entry;
 	int cur_state;
-	int i = 0;
 
 	if (!list || !state)
 		return -EINVAL;
 
 	/* The state of the list is 'on' IFF all resources are 'on'. */
-
-	for (i = 0; i < list->count; i++) {
-		struct acpi_power_resource *resource;
-		acpi_handle handle = list->handles[i];
+	list_for_each_entry(entry, list, node) {
+		struct acpi_power_resource *resource = entry->resource;
+		acpi_handle handle = resource->device.handle;
 		int result;
 
-		resource = acpi_power_get_context(handle);
-		if (!resource)
-			return -ENODEV;
-
 		mutex_lock(&resource->resource_lock);
-
 		result = acpi_power_get_state(handle, &cur_state);
-
 		mutex_unlock(&resource->resource_lock);
-
 		if (result)
 			return result;
 
@@ -155,7 +187,6 @@ static int acpi_power_get_list_state(struct acpi_handle_list *list, int *state)
 			  cur_state ? "on" : "off"));
 
 	*state = cur_state;
-
 	return 0;
 }
 
@@ -199,14 +230,9 @@ static int __acpi_power_on(struct acpi_power_resource *resource)
 	return 0;
 }
 
-static int acpi_power_on(acpi_handle handle)
+static int acpi_power_on(struct acpi_power_resource *resource)
 {
-	int result = 0;
-	struct acpi_power_resource *resource;
-
-	resource = acpi_power_get_context(handle);
-	if (!resource)
-		return -ENODEV;
+	int result = 0;;
 
 	mutex_lock(&resource->resource_lock);
 
@@ -231,15 +257,10 @@ static int acpi_power_on(acpi_handle handle)
 	return result;
 }
 
-static int acpi_power_off(acpi_handle handle)
+static int acpi_power_off(struct acpi_power_resource *resource)
 {
-	int result = 0;
 	acpi_status status = AE_OK;
-	struct acpi_power_resource *resource;
-
-	resource = acpi_power_get_context(handle);
-	if (!resource)
-		return -ENODEV;
+	int result = 0;
 
 	mutex_lock(&resource->resource_lock);
 
@@ -271,47 +292,48 @@ static int acpi_power_off(acpi_handle handle)
 	return result;
 }
 
-static void __acpi_power_off_list(struct acpi_handle_list *list, int num_res)
+static int acpi_power_off_list(struct list_head *list)
 {
-	int i;
+	struct acpi_power_resource_entry *entry;
+	int result = 0;
 
-	for (i = num_res - 1; i >= 0 ; i--)
-		acpi_power_off(list->handles[i]);
-}
+	list_for_each_entry_reverse(entry, list, node) {
+		result = acpi_power_off(entry->resource);
+		if (result)
+			goto err;
+	}
+	return 0;
 
-static void acpi_power_off_list(struct acpi_handle_list *list)
-{
-	__acpi_power_off_list(list, list->count);
+ err:
+	list_for_each_entry_continue(entry, list, node)
+		acpi_power_on(entry->resource);
+
+	return result;
 }
 
-static int acpi_power_on_list(struct acpi_handle_list *list)
+static int acpi_power_on_list(struct list_head *list)
 {
+	struct acpi_power_resource_entry *entry;
 	int result = 0;
-	int i;
 
-	for (i = 0; i < list->count; i++) {
-		result = acpi_power_on(list->handles[i]);
-		if (result) {
-			__acpi_power_off_list(list, i);
-			break;
-		}
+	list_for_each_entry(entry, list, node) {
+		result = acpi_power_on(entry->resource);
+		if (result)
+			goto err;
 	}
+	return 0;
+
+ err:
+	list_for_each_entry_continue_reverse(entry, list, node)
+		acpi_power_off(entry->resource);
 
 	return result;
 }
 
-static void acpi_power_add_dependent(acpi_handle rhandle,
+static void acpi_power_add_dependent(struct acpi_power_resource *resource,
 				     struct acpi_device *adev)
 {
 	struct acpi_power_dependent_device *dep;
-	struct acpi_power_resource *resource;
-
-	if (!rhandle || !adev)
-		return;
-
-	resource = acpi_power_get_context(rhandle);
-	if (!resource)
-		return;
 
 	mutex_lock(&resource->resource_lock);
 
@@ -331,20 +353,12 @@ static void acpi_power_add_dependent(acpi_handle rhandle,
 	mutex_unlock(&resource->resource_lock);
 }
 
-static void acpi_power_remove_dependent(acpi_handle rhandle,
+static void acpi_power_remove_dependent(struct acpi_power_resource *resource,
 					struct acpi_device *adev)
 {
 	struct acpi_power_dependent_device *dep;
-	struct acpi_power_resource *resource;
 	struct work_struct *work = NULL;
 
-	if (!rhandle || !adev)
-		return;
-
-	resource = acpi_power_get_context(rhandle);
-	if (!resource)
-		return;
-
 	mutex_lock(&resource->resource_lock);
 
 	list_for_each_entry(dep, &resource->dependent, node)
@@ -366,16 +380,16 @@ void acpi_power_add_remove_device(struct acpi_device *adev, bool add)
 {
 	if (adev->power.flags.power_resources) {
 		struct acpi_device_power_state *ps;
-		int j;
+		struct acpi_power_resource_entry *entry;
 
 		ps = &adev->power.states[ACPI_STATE_D0];
-		for (j = 0; j < ps->resources.count; j++) {
-			acpi_handle rhandle = ps->resources.handles[j];
+		list_for_each_entry(entry, &ps->resources, node) {
+			struct acpi_power_resource *resource = entry->resource;
 
 			if (add)
-				acpi_power_add_dependent(rhandle, adev);
+				acpi_power_add_dependent(resource, adev);
 			else
-				acpi_power_remove_dependent(rhandle, adev);
+				acpi_power_remove_dependent(resource, adev);
 		}
 	}
 }
@@ -539,7 +553,6 @@ int acpi_disable_wakeup_device_power(struct acpi_device *dev)
 int acpi_power_get_inferred_state(struct acpi_device *device, int *state)
 {
 	int result = 0;
-	struct acpi_handle_list *list = NULL;
 	int list_state = 0;
 	int i = 0;
 
@@ -551,8 +564,9 @@ int acpi_power_get_inferred_state(struct acpi_device *device, int *state)
 	 * required for a given D-state are 'on'.
 	 */
 	for (i = ACPI_STATE_D0; i <= ACPI_STATE_D3_HOT; i++) {
-		list = &device->power.states[i].resources;
-		if (list->count < 1)
+		struct list_head *list = &device->power.states[i].resources;
+
+		if (list_empty(list))
 			continue;
 
 		result = acpi_power_get_list_state(list, &list_state);
@@ -571,9 +585,12 @@ int acpi_power_get_inferred_state(struct acpi_device *device, int *state)
 
 int acpi_power_on_resources(struct acpi_device *device, int state)
 {
-	if (!device || state < ACPI_STATE_D0 || state > ACPI_STATE_D3)
+	if (!device || state < ACPI_STATE_D0 || state > ACPI_STATE_D3_COLD)
 		return -EINVAL;
 
+	if (state == ACPI_STATE_D3_COLD)
+		return 0;
+
 	return acpi_power_on_list(&device->power.states[state].resources);
 }
 
@@ -584,7 +601,7 @@ int acpi_power_transition(struct acpi_device *device, int state)
 	if (!device || (state < ACPI_STATE_D0) || (state > ACPI_STATE_D3_COLD))
 		return -EINVAL;
 
-	if (device->power.state == state)
+	if (device->power.state == state || !device->flags.power_manageable)
 		return 0;
 
 	if ((device->power.state < ACPI_STATE_D0)
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index c7ea9c2649a4..d557868c0081 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -475,11 +475,25 @@ void acpi_free_ids(struct acpi_device *device)
 	kfree(device->pnp.unique_id);
 }
 
+static void acpi_free_power_resources_lists(struct acpi_device *device)
+{
+	int i;
+
+	if (!device->flags.power_manageable)
+		return;
+
+	for (i = ACPI_STATE_D0; i <= ACPI_STATE_D3_HOT; i++) {
+		struct acpi_device_power_state *ps = &device->power.states[i];
+		acpi_power_resources_list_free(&ps->resources);
+	}
+}
+
 static void acpi_device_release(struct device *dev)
 {
 	struct acpi_device *acpi_dev = to_acpi_device(dev);
 
 	acpi_free_ids(acpi_dev);
+	acpi_free_power_resources_lists(acpi_dev);
 	kfree(acpi_dev);
 }
 
@@ -1055,17 +1069,22 @@ static void acpi_bus_get_power_flags(struct acpi_device *device)
 	for (i = ACPI_STATE_D0; i <= ACPI_STATE_D3_HOT; i++) {
 		struct acpi_device_power_state *ps = &device->power.states[i];
 		char object_name[5] = { '_', 'P', 'R', '0' + i, '\0' };
+		struct acpi_handle_list resources;
 
+		INIT_LIST_HEAD(&ps->resources);
 		/* Evaluate "_PRx" to se if power resources are referenced */
 		acpi_evaluate_reference(device->handle, object_name, NULL,
-					&ps->resources);
-		if (ps->resources.count) {
+					&resources);
+		if (resources.count) {
 			int j;
 
 			device->power.flags.power_resources = 1;
-			for (j = 0; j < ps->resources.count; j++) {
-				acpi_handle rhandle = ps->resources.handles[j];
+			for (j = 0; j < resources.count; j++) {
+				acpi_handle rhandle = resources.handles[j];
+
 				acpi_add_power_resource(rhandle);
+				acpi_power_resources_list_add(rhandle,
+							      &ps->resources);
 			}
 		}
 
@@ -1079,7 +1098,7 @@ static void acpi_bus_get_power_flags(struct acpi_device *device)
 		 * State is valid if there are means to put the device into it.
 		 * D3hot is only valid if _PR3 present.
 		 */
-		if (ps->resources.count ||
+		if (resources.count ||
 		    (ps->flags.explicit_set && i < ACPI_STATE_D3_HOT)) {
 			ps->flags.valid = 1;
 			ps->flags.os_accessible = 1;
@@ -1089,6 +1108,8 @@ static void acpi_bus_get_power_flags(struct acpi_device *device)
 		ps->latency = -1;	/* Unknown - driver assigned */
 	}
 
+	INIT_LIST_HEAD(&device->power.states[ACPI_STATE_D3_COLD].resources);
+
 	/* Set defaults for D0 and D3 states (always valid) */
 	device->power.states[ACPI_STATE_D0].flags.valid = 1;
 	device->power.states[ACPI_STATE_D0].power = 100;
-- 
cgit v1.2.3


From 993cbe595dda731471a07f4f65575fadedc570dc Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 17 Jan 2013 14:11:06 +0100
Subject: ACPI / PM: Take order attribute of wakeup power resources into
 account

ACPI power resources have an order attribute that should be taken
into account when turning them on and off, but it is not used now.

Modify the power resources management code to preserve the
spec-compliant ordering of wakeup power resources.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/power.c | 44 ++++++++++++++++----------------------------
 drivers/acpi/scan.c  | 26 ++++++++++++++++----------
 2 files changed, 32 insertions(+), 38 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index 22a3d00d0359..242feca231eb 100644
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -469,7 +469,7 @@ int acpi_device_sleep_wake(struct acpi_device *dev,
  */
 int acpi_enable_wakeup_device_power(struct acpi_device *dev, int sleep_state)
 {
-	int i, err = 0;
+	int err = 0;
 
 	if (!dev || !dev->wakeup.flags.valid)
 		return -EINVAL;
@@ -479,24 +479,17 @@ int acpi_enable_wakeup_device_power(struct acpi_device *dev, int sleep_state)
 	if (dev->wakeup.prepare_count++)
 		goto out;
 
-	/* Open power resource */
-	for (i = 0; i < dev->wakeup.resources.count; i++) {
-		int ret = acpi_power_on(dev->wakeup.resources.handles[i]);
-		if (ret) {
-			printk(KERN_ERR PREFIX "Transition power state\n");
-			dev->wakeup.flags.valid = 0;
-			err = -ENODEV;
-			goto err_out;
-		}
+	err = acpi_power_on_list(&dev->wakeup.resources);
+	if (err) {
+		dev_err(&dev->dev, "Cannot turn wakeup power resources on\n");
+		dev->wakeup.flags.valid = 0;
+	} else {
+		/*
+		 * Passing 3 as the third argument below means the device may be
+		 * put into arbitrary power state afterward.
+		 */
+		err = acpi_device_sleep_wake(dev, 1, sleep_state, 3);
 	}
-
-	/*
-	 * Passing 3 as the third argument below means the device may be placed
-	 * in arbitrary power state afterwards.
-	 */
-	err = acpi_device_sleep_wake(dev, 1, sleep_state, 3);
-
- err_out:
 	if (err)
 		dev->wakeup.prepare_count = 0;
 
@@ -513,7 +506,7 @@ int acpi_enable_wakeup_device_power(struct acpi_device *dev, int sleep_state)
  */
 int acpi_disable_wakeup_device_power(struct acpi_device *dev)
 {
-	int i, err = 0;
+	int err = 0;
 
 	if (!dev || !dev->wakeup.flags.valid)
 		return -EINVAL;
@@ -534,15 +527,10 @@ int acpi_disable_wakeup_device_power(struct acpi_device *dev)
 	if (err)
 		goto out;
 
-	/* Close power resource */
-	for (i = 0; i < dev->wakeup.resources.count; i++) {
-		int ret = acpi_power_off(dev->wakeup.resources.handles[i]);
-		if (ret) {
-			printk(KERN_ERR PREFIX "Transition power state\n");
-			dev->wakeup.flags.valid = 0;
-			err = -ENODEV;
-			goto out;
-		}
+	err = acpi_power_off_list(&dev->wakeup.resources);
+	if (err) {
+		dev_err(&dev->dev, "Cannot turn wakeup power resources off\n");
+		dev->wakeup.flags.valid = 0;
 	}
 
  out:
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index d557868c0081..e4ac46a9c664 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -479,6 +479,9 @@ static void acpi_free_power_resources_lists(struct acpi_device *device)
 {
 	int i;
 
+	if (device->wakeup.flags.valid)
+		acpi_power_resources_list_free(&device->wakeup.resources);
+
 	if (!device->flags.power_manageable)
 		return;
 
@@ -902,6 +905,8 @@ acpi_bus_extract_wakeup_device_power_package(acpi_handle handle,
 	if (!wakeup)
 		return AE_BAD_PARAMETER;
 
+	INIT_LIST_HEAD(&wakeup->resources);
+
 	/* _PRW */
 	status = acpi_evaluate_object(handle, "_PRW", NULL, &buffer);
 	if (ACPI_FAILURE(status)) {
@@ -948,19 +953,17 @@ acpi_bus_extract_wakeup_device_power_package(acpi_handle handle,
 	}
 	wakeup->sleep_state = element->integer.value;
 
-	if ((package->package.count - 2) > ACPI_MAX_HANDLES) {
-		status = AE_NO_MEMORY;
-		goto out;
-	}
-	wakeup->resources.count = package->package.count - 2;
-	for (i = 0; i < wakeup->resources.count; i++) {
-		element = &(package->package.elements[i + 2]);
+	for (i = 2; i < package->package.count; i++) {
+		acpi_handle rhandle;
+
+		element = &(package->package.elements[i]);
 		if (element->type != ACPI_TYPE_LOCAL_REFERENCE) {
 			status = AE_BAD_DATA;
 			goto out;
 		}
-
-		wakeup->resources.handles[i] = element->reference.handle;
+		rhandle = element->reference.handle;
+		acpi_add_power_resource(rhandle);
+		acpi_power_resources_list_add(rhandle, &wakeup->resources);
 	}
 
 	acpi_setup_gpe_for_wake(handle, wakeup->gpe_device, wakeup->gpe_number);
@@ -1018,6 +1021,7 @@ static void acpi_bus_get_wakeup_device_flags(struct acpi_device *device)
 	status = acpi_bus_extract_wakeup_device_power_package(device->handle,
 							      &device->wakeup);
 	if (ACPI_FAILURE(status)) {
+		acpi_power_resources_list_free(&device->wakeup.resources);
 		ACPI_EXCEPTION((AE_INFO, status, "Extracting _PRW package"));
 		return;
 	}
@@ -1491,9 +1495,11 @@ static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl_not_used,
 		acpi_handle temp;
 
 		status = acpi_get_handle(handle, "_PRW", &temp);
-		if (ACPI_SUCCESS(status))
+		if (ACPI_SUCCESS(status)) {
 			acpi_bus_extract_wakeup_device_power_package(handle,
 								     &wakeup);
+			acpi_power_resources_list_free(&wakeup.resources);
+		}
 		return AE_CTRL_DEPTH;
 	}
 
-- 
cgit v1.2.3


From f33ce568366ab61b5685bae07306e40f17beb943 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 17 Jan 2013 14:11:06 +0100
Subject: ACPI / scan: Move power state initialization to a separate routine

To reduce indentation level and improve code readability, move the
initialization code related to device power states from
acpi_bus_get_power_flags() to a new routine,
acpi_bus_init_power_state().

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/scan.c | 87 ++++++++++++++++++++++++++++-------------------------
 1 file changed, 46 insertions(+), 41 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index e4ac46a9c664..10c98ff6b026 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1041,6 +1041,50 @@ static void acpi_bus_get_wakeup_device_flags(struct acpi_device *device)
 				"error in _DSW or _PSW evaluation\n"));
 }
 
+static void acpi_bus_init_power_state(struct acpi_device *device, int state)
+{
+	struct acpi_device_power_state *ps = &device->power.states[state];
+	char object_name[5] = { '_', 'P', 'R', '0' + state, '\0' };
+	struct acpi_handle_list resources;
+	acpi_handle handle;
+	acpi_status status;
+
+	INIT_LIST_HEAD(&ps->resources);
+
+	/* Evaluate "_PRx" to se if power resources are referenced */
+	acpi_evaluate_reference(device->handle, object_name, NULL, &resources);
+	if (resources.count) {
+		int j;
+
+		device->power.flags.power_resources = 1;
+		for (j = 0; j < resources.count; j++) {
+			acpi_handle rhandle = resources.handles[j];
+
+			acpi_add_power_resource(rhandle);
+			acpi_power_resources_list_add(rhandle, &ps->resources);
+		}
+	}
+
+	/* Evaluate "_PSx" to see if we can do explicit sets */
+	object_name[2] = 'S';
+	status = acpi_get_handle(device->handle, object_name, &handle);
+	if (ACPI_SUCCESS(status))
+		ps->flags.explicit_set = 1;
+
+	/*
+	 * State is valid if there are means to put the device into it.
+	 * D3hot is only valid if _PR3 present.
+	 */
+	if (resources.count
+	    || (ps->flags.explicit_set && state < ACPI_STATE_D3_HOT)) {
+		ps->flags.valid = 1;
+		ps->flags.os_accessible = 1;
+	}
+
+	ps->power = -1;		/* Unknown - driver assigned */
+	ps->latency = -1;	/* Unknown - driver assigned */
+}
+
 static void acpi_bus_get_power_flags(struct acpi_device *device)
 {
 	acpi_status status = 0;
@@ -1070,47 +1114,8 @@ static void acpi_bus_get_power_flags(struct acpi_device *device)
 	/*
 	 * Enumerate supported power management states
 	 */
-	for (i = ACPI_STATE_D0; i <= ACPI_STATE_D3_HOT; i++) {
-		struct acpi_device_power_state *ps = &device->power.states[i];
-		char object_name[5] = { '_', 'P', 'R', '0' + i, '\0' };
-		struct acpi_handle_list resources;
-
-		INIT_LIST_HEAD(&ps->resources);
-		/* Evaluate "_PRx" to se if power resources are referenced */
-		acpi_evaluate_reference(device->handle, object_name, NULL,
-					&resources);
-		if (resources.count) {
-			int j;
-
-			device->power.flags.power_resources = 1;
-			for (j = 0; j < resources.count; j++) {
-				acpi_handle rhandle = resources.handles[j];
-
-				acpi_add_power_resource(rhandle);
-				acpi_power_resources_list_add(rhandle,
-							      &ps->resources);
-			}
-		}
-
-		/* Evaluate "_PSx" to see if we can do explicit sets */
-		object_name[2] = 'S';
-		status = acpi_get_handle(device->handle, object_name, &handle);
-		if (ACPI_SUCCESS(status))
-			ps->flags.explicit_set = 1;
-
-		/*
-		 * State is valid if there are means to put the device into it.
-		 * D3hot is only valid if _PR3 present.
-		 */
-		if (resources.count ||
-		    (ps->flags.explicit_set && i < ACPI_STATE_D3_HOT)) {
-			ps->flags.valid = 1;
-			ps->flags.os_accessible = 1;
-		}
-
-		ps->power = -1;	/* Unknown - driver assigned */
-		ps->latency = -1;	/* Unknown - driver assigned */
-	}
+	for (i = ACPI_STATE_D0; i <= ACPI_STATE_D3_HOT; i++)
+		acpi_bus_init_power_state(device, i);
 
 	INIT_LIST_HEAD(&device->power.states[ACPI_STATE_D3_COLD].resources);
 
-- 
cgit v1.2.3


From 8bc5053bcdff09a6d1c6a61a79a9014884aa0a14 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 17 Jan 2013 14:11:07 +0100
Subject: ACPI / scan: Remove unnecessary initialization of local variables

The local variables in acpi_bus_get_power_flags() need not be
initialized upfront, so change the code accordingly.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/scan.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 10c98ff6b026..8da315418d94 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1087,9 +1087,9 @@ static void acpi_bus_init_power_state(struct acpi_device *device, int state)
 
 static void acpi_bus_get_power_flags(struct acpi_device *device)
 {
-	acpi_status status = 0;
-	acpi_handle handle = NULL;
-	u32 i = 0;
+	acpi_status status;
+	acpi_handle handle;
+	u32 i;
 
 	/* Presence of _PS0|_PR0 indicates 'power manageable' */
 	status = acpi_get_handle(device->handle, "_PS0", &handle);
-- 
cgit v1.2.3


From ef85bdbec444b42775a18580c6bfe1307a63ef0f Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 17 Jan 2013 14:11:07 +0100
Subject: ACPI / scan: Consolidate extraction of power resources lists

The lists of ACPI power resources are currently extracted in two
different ways, one for wakeup power resources and one for power
resources that device power states depend on.  There is no reason
why it should be done differently in those two cases, so introduce
a common routine for extracting power resources lists from data
returned by AML, acpi_extract_power_resources(), and make the
namespace scanning code use it for both wakeup and device power
states power resources.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/internal.h |  4 +++-
 drivers/acpi/power.c    | 32 ++++++++++++++++++++++++++++++-
 drivers/acpi/scan.c     | 51 ++++++++++++++++++++-----------------------------
 3 files changed, 55 insertions(+), 32 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index e28068a765a9..c35435e3d760 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -50,8 +50,10 @@ void acpi_free_ids(struct acpi_device *device);
                                   Power Resource
    -------------------------------------------------------------------------- */
 int acpi_power_init(void);
-void acpi_power_resources_list_add(acpi_handle handle, struct list_head *list);
 void acpi_power_resources_list_free(struct list_head *list);
+acpi_status acpi_extract_power_resources(union acpi_object *package,
+					 unsigned int start,
+					 struct list_head *list);
 void acpi_add_power_resource(acpi_handle handle);
 void acpi_power_add_remove_device(struct acpi_device *adev, bool add);
 int acpi_device_sleep_wake(struct acpi_device *dev,
diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index 242feca231eb..4b93c97aff9f 100644
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -97,7 +97,8 @@ static struct acpi_power_resource *acpi_power_get_context(acpi_handle handle)
 	return container_of(device, struct acpi_power_resource, device);
 }
 
-void acpi_power_resources_list_add(acpi_handle handle, struct list_head *list)
+static void acpi_power_resources_list_add(acpi_handle handle,
+					  struct list_head *list)
 {
 	struct acpi_power_resource *resource = acpi_power_get_context(handle);
 	struct acpi_power_resource_entry *entry;
@@ -132,6 +133,35 @@ void acpi_power_resources_list_free(struct list_head *list)
 	}
 }
 
+acpi_status acpi_extract_power_resources(union acpi_object *package,
+					 unsigned int start,
+					 struct list_head *list)
+{
+	acpi_status status = AE_OK;
+	unsigned int i;
+
+	for (i = start; i < package->package.count; i++) {
+		union acpi_object *element = &package->package.elements[i];
+		acpi_handle rhandle;
+
+		if (element->type != ACPI_TYPE_LOCAL_REFERENCE) {
+			status = AE_BAD_DATA;
+			break;
+		}
+		rhandle = element->reference.handle;
+		if (!rhandle) {
+			status = AE_NULL_ENTRY;
+			break;
+		}
+		acpi_add_power_resource(rhandle);
+		acpi_power_resources_list_add(rhandle, list);
+	}
+	if (ACPI_FAILURE(status))
+		acpi_power_resources_list_free(list);
+
+	return status;
+}
+
 static int acpi_power_get_state(acpi_handle handle, int *state)
 {
 	acpi_status status = AE_OK;
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 8da315418d94..d80df969f64a 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -900,7 +900,6 @@ acpi_bus_extract_wakeup_device_power_package(acpi_handle handle,
 	union acpi_object *package = NULL;
 	union acpi_object *element = NULL;
 	acpi_status status;
-	int i = 0;
 
 	if (!wakeup)
 		return AE_BAD_PARAMETER;
@@ -953,18 +952,9 @@ acpi_bus_extract_wakeup_device_power_package(acpi_handle handle,
 	}
 	wakeup->sleep_state = element->integer.value;
 
-	for (i = 2; i < package->package.count; i++) {
-		acpi_handle rhandle;
-
-		element = &(package->package.elements[i]);
-		if (element->type != ACPI_TYPE_LOCAL_REFERENCE) {
-			status = AE_BAD_DATA;
-			goto out;
-		}
-		rhandle = element->reference.handle;
-		acpi_add_power_resource(rhandle);
-		acpi_power_resources_list_add(rhandle, &wakeup->resources);
-	}
+	status = acpi_extract_power_resources(package, 2, &wakeup->resources);
+	if (ACPI_FAILURE(status))
+		goto out;
 
 	acpi_setup_gpe_for_wake(handle, wakeup->gpe_device, wakeup->gpe_number);
 
@@ -1021,7 +1011,6 @@ static void acpi_bus_get_wakeup_device_flags(struct acpi_device *device)
 	status = acpi_bus_extract_wakeup_device_power_package(device->handle,
 							      &device->wakeup);
 	if (ACPI_FAILURE(status)) {
-		acpi_power_resources_list_free(&device->wakeup.resources);
 		ACPI_EXCEPTION((AE_INFO, status, "Extracting _PRW package"));
 		return;
 	}
@@ -1044,30 +1033,32 @@ static void acpi_bus_get_wakeup_device_flags(struct acpi_device *device)
 static void acpi_bus_init_power_state(struct acpi_device *device, int state)
 {
 	struct acpi_device_power_state *ps = &device->power.states[state];
-	char object_name[5] = { '_', 'P', 'R', '0' + state, '\0' };
-	struct acpi_handle_list resources;
+	char pathname[5] = { '_', 'P', 'R', '0' + state, '\0' };
+	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
 	acpi_handle handle;
 	acpi_status status;
 
 	INIT_LIST_HEAD(&ps->resources);
 
-	/* Evaluate "_PRx" to se if power resources are referenced */
-	acpi_evaluate_reference(device->handle, object_name, NULL, &resources);
-	if (resources.count) {
-		int j;
-
-		device->power.flags.power_resources = 1;
-		for (j = 0; j < resources.count; j++) {
-			acpi_handle rhandle = resources.handles[j];
-
-			acpi_add_power_resource(rhandle);
-			acpi_power_resources_list_add(rhandle, &ps->resources);
+	/* Evaluate "_PRx" to get referenced power resources */
+	status = acpi_evaluate_object(device->handle, pathname, NULL, &buffer);
+	if (ACPI_SUCCESS(status)) {
+		union acpi_object *package = buffer.pointer;
+
+		if (buffer.length && package
+		    && package->type == ACPI_TYPE_PACKAGE
+		    && package->package.count) {
+			status = acpi_extract_power_resources(package, 0,
+							      &ps->resources);
+			if (ACPI_SUCCESS(status))
+				device->power.flags.power_resources = 1;
 		}
+		ACPI_FREE(buffer.pointer);
 	}
 
 	/* Evaluate "_PSx" to see if we can do explicit sets */
-	object_name[2] = 'S';
-	status = acpi_get_handle(device->handle, object_name, &handle);
+	pathname[2] = 'S';
+	status = acpi_get_handle(device->handle, pathname, &handle);
 	if (ACPI_SUCCESS(status))
 		ps->flags.explicit_set = 1;
 
@@ -1075,7 +1066,7 @@ static void acpi_bus_init_power_state(struct acpi_device *device, int state)
 	 * State is valid if there are means to put the device into it.
 	 * D3hot is only valid if _PR3 present.
 	 */
-	if (resources.count
+	if (!list_empty(&ps->resources)
 	    || (ps->flags.explicit_set && state < ACPI_STATE_D3_HOT)) {
 		ps->flags.valid = 1;
 		ps->flags.os_accessible = 1;
-- 
cgit v1.2.3


From e88c9c603b2ad0cd0fbe90afedba3f1becbbeb79 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 17 Jan 2013 14:11:07 +0100
Subject: ACPI: Take power resource initialization errors into account

Some ACPI power resource initialization errors, like memory
allocation errors, are not taken into account appropriately in some
cases, which may lead to a device having an incomplete list of power
resources that one of its power states depends on, for one example.

Rework the power resource initialization and namespace scanning code
so that power resource initialization errors are treated more
seriously.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/internal.h |  7 +++---
 drivers/acpi/power.c    | 44 +++++++++++++++++++++-----------------
 drivers/acpi/scan.c     | 57 ++++++++++++++++++++++---------------------------
 3 files changed, 53 insertions(+), 55 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index c35435e3d760..8a6c67c9da42 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -51,10 +51,9 @@ void acpi_free_ids(struct acpi_device *device);
    -------------------------------------------------------------------------- */
 int acpi_power_init(void);
 void acpi_power_resources_list_free(struct list_head *list);
-acpi_status acpi_extract_power_resources(union acpi_object *package,
-					 unsigned int start,
-					 struct list_head *list);
-void acpi_add_power_resource(acpi_handle handle);
+int acpi_extract_power_resources(union acpi_object *package, unsigned int start,
+				 struct list_head *list);
+int acpi_add_power_resource(acpi_handle handle);
 void acpi_power_add_remove_device(struct acpi_device *adev, bool add);
 int acpi_device_sleep_wake(struct acpi_device *dev,
                            int enable, int sleep_state, int dev_state);
diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index 4b93c97aff9f..1600f753fafe 100644
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -97,18 +97,18 @@ static struct acpi_power_resource *acpi_power_get_context(acpi_handle handle)
 	return container_of(device, struct acpi_power_resource, device);
 }
 
-static void acpi_power_resources_list_add(acpi_handle handle,
-					  struct list_head *list)
+static int acpi_power_resources_list_add(acpi_handle handle,
+					 struct list_head *list)
 {
 	struct acpi_power_resource *resource = acpi_power_get_context(handle);
 	struct acpi_power_resource_entry *entry;
 
 	if (!resource || !list)
-		return;
+		return -EINVAL;
 
 	entry = kzalloc(sizeof(*entry), GFP_KERNEL);
 	if (!entry)
-		return;
+		return -ENOMEM;
 
 	entry->resource = resource;
 	if (!list_empty(list)) {
@@ -117,10 +117,11 @@ static void acpi_power_resources_list_add(acpi_handle handle,
 		list_for_each_entry(e, list, node)
 			if (e->resource->order > resource->order) {
 				list_add_tail(&entry->node, &e->node);
-				return;
+				return 0;
 			}
 	}
 	list_add_tail(&entry->node, list);
+	return 0;
 }
 
 void acpi_power_resources_list_free(struct list_head *list)
@@ -133,33 +134,37 @@ void acpi_power_resources_list_free(struct list_head *list)
 	}
 }
 
-acpi_status acpi_extract_power_resources(union acpi_object *package,
-					 unsigned int start,
-					 struct list_head *list)
+int acpi_extract_power_resources(union acpi_object *package, unsigned int start,
+				 struct list_head *list)
 {
-	acpi_status status = AE_OK;
 	unsigned int i;
+	int err = 0;
 
 	for (i = start; i < package->package.count; i++) {
 		union acpi_object *element = &package->package.elements[i];
 		acpi_handle rhandle;
 
 		if (element->type != ACPI_TYPE_LOCAL_REFERENCE) {
-			status = AE_BAD_DATA;
+			err = -ENODATA;
 			break;
 		}
 		rhandle = element->reference.handle;
 		if (!rhandle) {
-			status = AE_NULL_ENTRY;
+			err = -ENODEV;
 			break;
 		}
-		acpi_add_power_resource(rhandle);
-		acpi_power_resources_list_add(rhandle, list);
+		err = acpi_add_power_resource(rhandle);
+		if (err)
+			break;
+
+		err = acpi_power_resources_list_add(rhandle, list);
+		if (err)
+			break;
 	}
-	if (ACPI_FAILURE(status))
+	if (err)
 		acpi_power_resources_list_free(list);
 
-	return status;
+	return err;
 }
 
 static int acpi_power_get_state(acpi_handle handle, int *state)
@@ -662,7 +667,7 @@ static void acpi_release_power_resource(struct device *dev)
 	kfree(resource);
 }
 
-void acpi_add_power_resource(acpi_handle handle)
+int acpi_add_power_resource(acpi_handle handle)
 {
 	struct acpi_power_resource *resource;
 	struct acpi_device *device = NULL;
@@ -673,11 +678,11 @@ void acpi_add_power_resource(acpi_handle handle)
 
 	acpi_bus_get_device(handle, &device);
 	if (device)
-		return;
+		return 0;
 
 	resource = kzalloc(sizeof(*resource), GFP_KERNEL);
 	if (!resource)
-		return;
+		return -ENOMEM;
 
 	device = &resource->device;
 	acpi_init_device_object(device, handle, ACPI_BUS_TYPE_POWER,
@@ -712,10 +717,11 @@ void acpi_add_power_resource(acpi_handle handle)
 	mutex_lock(&power_resource_list_lock);
 	list_add(&resource->list_node, &acpi_power_resource_list);
 	mutex_unlock(&power_resource_list_lock);
-	return;
+	return 0;
 
  err:
 	acpi_release_power_resource(&device->dev);
+	return result;
 }
 
 #ifdef CONFIG_ACPI_SLEEP
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index d80df969f64a..0b6a6b4febd6 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -892,17 +892,17 @@ void acpi_bus_data_handler(acpi_handle handle, void *context)
 	return;
 }
 
-static acpi_status
-acpi_bus_extract_wakeup_device_power_package(acpi_handle handle,
-					     struct acpi_device_wakeup *wakeup)
+static int acpi_bus_extract_wakeup_device_power_package(acpi_handle handle,
+					struct acpi_device_wakeup *wakeup)
 {
 	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
 	union acpi_object *package = NULL;
 	union acpi_object *element = NULL;
 	acpi_status status;
+	int err = -ENODATA;
 
 	if (!wakeup)
-		return AE_BAD_PARAMETER;
+		return -EINVAL;
 
 	INIT_LIST_HEAD(&wakeup->resources);
 
@@ -910,29 +910,25 @@ acpi_bus_extract_wakeup_device_power_package(acpi_handle handle,
 	status = acpi_evaluate_object(handle, "_PRW", NULL, &buffer);
 	if (ACPI_FAILURE(status)) {
 		ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PRW"));
-		return status;
+		return err;
 	}
 
 	package = (union acpi_object *)buffer.pointer;
 
-	if (!package || (package->package.count < 2)) {
-		status = AE_BAD_DATA;
+	if (!package || package->package.count < 2)
 		goto out;
-	}
 
 	element = &(package->package.elements[0]);
-	if (!element) {
-		status = AE_BAD_DATA;
+	if (!element)
 		goto out;
-	}
+
 	if (element->type == ACPI_TYPE_PACKAGE) {
 		if ((element->package.count < 2) ||
 		    (element->package.elements[0].type !=
 		     ACPI_TYPE_LOCAL_REFERENCE)
-		    || (element->package.elements[1].type != ACPI_TYPE_INTEGER)) {
-			status = AE_BAD_DATA;
+		    || (element->package.elements[1].type != ACPI_TYPE_INTEGER))
 			goto out;
-		}
+
 		wakeup->gpe_device =
 		    element->package.elements[0].reference.handle;
 		wakeup->gpe_number =
@@ -941,27 +937,24 @@ acpi_bus_extract_wakeup_device_power_package(acpi_handle handle,
 		wakeup->gpe_device = NULL;
 		wakeup->gpe_number = element->integer.value;
 	} else {
-		status = AE_BAD_DATA;
 		goto out;
 	}
 
 	element = &(package->package.elements[1]);
-	if (element->type != ACPI_TYPE_INTEGER) {
-		status = AE_BAD_DATA;
+	if (element->type != ACPI_TYPE_INTEGER)
 		goto out;
-	}
+
 	wakeup->sleep_state = element->integer.value;
 
-	status = acpi_extract_power_resources(package, 2, &wakeup->resources);
-	if (ACPI_FAILURE(status))
+	err = acpi_extract_power_resources(package, 2, &wakeup->resources);
+	if (err)
 		goto out;
 
 	acpi_setup_gpe_for_wake(handle, wakeup->gpe_device, wakeup->gpe_number);
 
  out:
 	kfree(buffer.pointer);
-
-	return status;
+	return err;
 }
 
 static void acpi_bus_set_run_wake_flags(struct acpi_device *device)
@@ -1001,17 +994,17 @@ static void acpi_bus_get_wakeup_device_flags(struct acpi_device *device)
 {
 	acpi_handle temp;
 	acpi_status status = 0;
-	int psw_error;
+	int err;
 
 	/* Presence of _PRW indicates wake capable */
 	status = acpi_get_handle(device->handle, "_PRW", &temp);
 	if (ACPI_FAILURE(status))
 		return;
 
-	status = acpi_bus_extract_wakeup_device_power_package(device->handle,
-							      &device->wakeup);
-	if (ACPI_FAILURE(status)) {
-		ACPI_EXCEPTION((AE_INFO, status, "Extracting _PRW package"));
+	err = acpi_bus_extract_wakeup_device_power_package(device->handle,
+							   &device->wakeup);
+	if (err) {
+		dev_err(&device->dev, "_PRW evaluation error: %d\n", err);
 		return;
 	}
 
@@ -1024,8 +1017,8 @@ static void acpi_bus_get_wakeup_device_flags(struct acpi_device *device)
 	 * So it is necessary to call _DSW object first. Only when it is not
 	 * present will the _PSW object used.
 	 */
-	psw_error = acpi_device_sleep_wake(device, 0, 0, 0);
-	if (psw_error)
+	err = acpi_device_sleep_wake(device, 0, 0, 0);
+	if (err)
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 				"error in _DSW or _PSW evaluation\n"));
 }
@@ -1048,9 +1041,9 @@ static void acpi_bus_init_power_state(struct acpi_device *device, int state)
 		if (buffer.length && package
 		    && package->type == ACPI_TYPE_PACKAGE
 		    && package->package.count) {
-			status = acpi_extract_power_resources(package, 0,
-							      &ps->resources);
-			if (ACPI_SUCCESS(status))
+			int err = acpi_extract_power_resources(package, 0,
+							       &ps->resources);
+			if (!err)
 				device->power.flags.power_resources = 1;
 		}
 		ACPI_FREE(buffer.pointer);
-- 
cgit v1.2.3


From 0596a52b8357b25185e06af32973225baeb7196a Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 17 Jan 2013 14:11:07 +0100
Subject: ACPI: Use system level attribute of wakeup power resources

The system level attribute of ACPI power resources is the lowest
system sleep level (S0, S2 etc.) in which the given resource can be
"on" (ACPI 5.0, Section 7.1).  On the other hand, wakeup power
resources have to be "on" for devices depending on them to be able to
signal wakeup.  Therefore devices cannot wake up the system from
sleep states higher than the minimum of the system level attributes
of their wakeup power resources.

Use the wakeup power resources' system level values to get the
deepest system sleep state (highest system sleep level) the given
device can wake up the system from.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/internal.h |  1 +
 drivers/acpi/power.c    | 14 ++++++++++++++
 drivers/acpi/scan.c     | 11 +++++++++++
 3 files changed, 26 insertions(+)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 8a6c67c9da42..07f61dbd8136 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -55,6 +55,7 @@ int acpi_extract_power_resources(union acpi_object *package, unsigned int start,
 				 struct list_head *list);
 int acpi_add_power_resource(acpi_handle handle);
 void acpi_power_add_remove_device(struct acpi_device *adev, bool add);
+int acpi_power_min_system_level(struct list_head *list);
 int acpi_device_sleep_wake(struct acpi_device *dev,
                            int enable, int sleep_state, int dev_state);
 int acpi_power_get_inferred_state(struct acpi_device *device, int *state);
diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index 1600f753fafe..089a7c39348f 100644
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -429,6 +429,20 @@ void acpi_power_add_remove_device(struct acpi_device *adev, bool add)
 	}
 }
 
+int acpi_power_min_system_level(struct list_head *list)
+{
+	struct acpi_power_resource_entry *entry;
+	int system_level = 5;
+
+	list_for_each_entry(entry, list, node) {
+		struct acpi_power_resource *resource = entry->resource;
+
+		if (system_level > resource->system_level)
+			system_level = resource->system_level;
+	}
+	return system_level;
+}
+
 /* --------------------------------------------------------------------------
                              Device Power Management
    -------------------------------------------------------------------------- */
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 0b6a6b4febd6..1fc57a349a3c 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -950,6 +950,17 @@ static int acpi_bus_extract_wakeup_device_power_package(acpi_handle handle,
 	if (err)
 		goto out;
 
+	if (!list_empty(&wakeup->resources)) {
+		int sleep_state;
+
+		sleep_state = acpi_power_min_system_level(&wakeup->resources);
+		if (sleep_state < wakeup->sleep_state) {
+			acpi_handle_warn(handle, "Overriding _PRW sleep state "
+					 "(S%d) by S%d from power resources\n",
+					 (int)wakeup->sleep_state, sleep_state);
+			wakeup->sleep_state = sleep_state;
+		}
+	}
 	acpi_setup_gpe_for_wake(handle, wakeup->gpe_device, wakeup->gpe_number);
 
  out:
-- 
cgit v1.2.3


From ff0c41942fd9766a158502d8ed6965c8a7726f53 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 17 Jan 2013 14:11:08 +0100
Subject: ACPI / PM: Change the way power transitions to D3cold are carried out

During power transitions into D3cold from any shallower power states
we are supposed to transition the device into D3hot and remove power
from it afterward, but the current code in acpi_device_set_power()
doesn't work this way.

At the same time, though, we need to be careful enough to preserve
backwards compatibility for systems that don't distinguish between
D3hot and D3cold (e.g. designed before ACPI 4).

Modify acpi_device_set_power() so that it works in accordance with
the expectations in both cases.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/bus.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 1f0d457ecbcf..8e57fc49726e 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -270,6 +270,7 @@ int acpi_device_set_power(struct acpi_device *device, int state)
 	int result = 0;
 	acpi_status status = AE_OK;
 	char object_name[5] = { '_', 'P', 'S', '0' + state, '\0' };
+	bool cut_power = false;
 
 	if (!device || (state < ACPI_STATE_D0) || (state > ACPI_STATE_D3_COLD))
 		return -EINVAL;
@@ -294,9 +295,13 @@ int acpi_device_set_power(struct acpi_device *device, int state)
 		return -ENODEV;
 	}
 
-	/* For D3cold we should execute _PS3, not _PS4. */
-	if (state == ACPI_STATE_D3_COLD)
+	/* For D3cold we should first transition into D3hot. */
+	if (state == ACPI_STATE_D3_COLD
+	    && device->power.states[ACPI_STATE_D3_COLD].flags.os_accessible) {
+		state = ACPI_STATE_D3_HOT;
 		object_name[3] = '3';
+		cut_power = true;
+	}
 
 	/*
 	 * Transition Power
@@ -341,6 +346,9 @@ int acpi_device_set_power(struct acpi_device *device, int state)
 		}
 	}
 
+	if (cut_power)
+		result = acpi_power_transition(device, ACPI_STATE_D3_COLD);
+
       end:
 	if (result)
 		printk(KERN_WARNING PREFIX
-- 
cgit v1.2.3


From ad0c3b0e4863185a9f8874a655a8d2999c915131 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 17 Jan 2013 14:11:08 +0100
Subject: ACPI / PM: More visible function for retrieving device power states

The function used for retrieving ACPI device power states,
__acpi_bus_get_power(), is now static, because it is only used
internally in drivers/acpi/bus.c.  However, it will be used
outside of that file going forward, so rename it to
acpi_device_get_power(), in analogy with acpi_device_set_power(),
add a kerneldoc comment to it and add its header to acpi_bus.h.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/bus.c | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 8e57fc49726e..0e1441cc4d7f 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -200,7 +200,16 @@ static const char *state_string(int state)
 	}
 }
 
-static int __acpi_bus_get_power(struct acpi_device *device, int *state)
+/**
+ * acpi_device_get_power - Get power state of an ACPI device.
+ * @device: Device to get the power state of.
+ * @state: Place to store the power state of the device.
+ *
+ * This function does not update the device's power.state field, but it may
+ * update its parent's power.state field (when the parent's power state is
+ * unknown and the device's power state turns out to be D0).
+ */
+int acpi_device_get_power(struct acpi_device *device, int *state)
 {
 	int result = ACPI_STATE_UNKNOWN;
 
@@ -397,7 +406,7 @@ int acpi_bus_init_power(struct acpi_device *device)
 
 	device->power.state = ACPI_STATE_UNKNOWN;
 
-	result = __acpi_bus_get_power(device, &state);
+	result = acpi_device_get_power(device, &state);
 	if (result)
 		return result;
 
@@ -421,7 +430,7 @@ int acpi_bus_update_power(acpi_handle handle, int *state_p)
 	if (result)
 		return result;
 
-	result = __acpi_bus_get_power(device, &state);
+	result = acpi_device_get_power(device, &state);
 	if (result)
 		return result;
 
-- 
cgit v1.2.3


From 96bfd3cee2a741906b3ef5c1096d2f0a0b8025e0 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 17 Jan 2013 14:11:08 +0100
Subject: ACPI / PM: Common string representations of device power states

The function returning string representations of ACPI device power
states, state_string((), is now static, because it is only used
internally in drivers/acpi/bus.c.  However, it will be used outside
of that file going forward, so rename it to
acpi_power_state_string(), add a kerneldoc comment to it and add its
header to acpi_bus.h.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/bus.c | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 0e1441cc4d7f..6c9b16c16660 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -182,7 +182,11 @@ EXPORT_SYMBOL(acpi_bus_get_private_data);
                                  Power Management
    -------------------------------------------------------------------------- */
 
-static const char *state_string(int state)
+/**
+ * acpi_power_state_string - String representation of ACPI device power state.
+ * @state: ACPI device power state to return the string representation of.
+ */
+const char *acpi_power_state_string(int state)
 {
 	switch (state) {
 	case ACPI_STATE_D0:
@@ -260,7 +264,7 @@ int acpi_device_get_power(struct acpi_device *device, int *state)
 
  out:
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device [%s] power state is %s\n",
-			  device->pnp.bus_id, state_string(*state)));
+			  device->pnp.bus_id, acpi_power_state_string(*state)));
 
 	return 0;
 }
@@ -288,13 +292,13 @@ int acpi_device_set_power(struct acpi_device *device, int state)
 
 	if (state == device->power.state) {
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device is already at %s\n",
-				  state_string(state)));
+				  acpi_power_state_string(state)));
 		return 0;
 	}
 
 	if (!device->power.states[state].flags.valid) {
 		printk(KERN_WARNING PREFIX "Device does not support %s\n",
-		       state_string(state));
+		       acpi_power_state_string(state));
 		return -ENODEV;
 	}
 	if (device->parent && (state < device->parent->power.state)) {
@@ -362,12 +366,14 @@ int acpi_device_set_power(struct acpi_device *device, int state)
 	if (result)
 		printk(KERN_WARNING PREFIX
 			      "Device [%s] failed to transition to %s\n",
-			      device->pnp.bus_id, state_string(state));
+			      device->pnp.bus_id,
+			      acpi_power_state_string(state));
 	else {
 		device->power.state = state;
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 				  "Device [%s] transitioned to %s\n",
-				  device->pnp.bus_id, state_string(state)));
+				  device->pnp.bus_id,
+				  acpi_power_state_string(state)));
 	}
 
 	return result;
-- 
cgit v1.2.3


From b8bd759acd05281abf88cddef30c57313c109697 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Sat, 19 Jan 2013 01:27:35 +0100
Subject: ACPI / scan: Drop acpi_bus_add() and use acpi_bus_scan() instead

The only difference between acpi_bus_scan() and acpi_bus_add() is the
invocation of acpi_update_all_gpes() in the latter which in fact is
unnecessary, because acpi_update_all_gpes() has already been called
by acpi_scan_init() and the way it is implemented guarantees the next
invocations of it to do nothing.

For this reason, drop acpi_bus_add() and make all its callers use
acpi_bus_scan() directly instead of it.  Additionally, rearrange the
code in acpi_scan_init() slightly to improve the visibility of the
acpi_update_all_gpes() call in there.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
---
 drivers/acpi/acpi_memhotplug.c  |  2 +-
 drivers/acpi/container.c        |  2 +-
 drivers/acpi/dock.c             |  2 +-
 drivers/acpi/processor_driver.c |  2 +-
 drivers/acpi/scan.c             | 54 +++++++++++++++++------------------------
 5 files changed, 26 insertions(+), 36 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c
index eaddb7a89c70..15ea22fc1f5e 100644
--- a/drivers/acpi/acpi_memhotplug.c
+++ b/drivers/acpi/acpi_memhotplug.c
@@ -167,7 +167,7 @@ acpi_memory_get_device(acpi_handle handle,
 	 * Now add the notified device.  This creates the acpi_device
 	 * and invokes .add function
 	 */
-	result = acpi_bus_add(handle);
+	result = acpi_bus_scan(handle);
 	if (result) {
 		acpi_handle_warn(handle, "Cannot add acpi bus\n");
 		return -EINVAL;
diff --git a/drivers/acpi/container.c b/drivers/acpi/container.c
index f8fb2281f34a..cc79d3e53a39 100644
--- a/drivers/acpi/container.c
+++ b/drivers/acpi/container.c
@@ -166,7 +166,7 @@ static void container_notify_cb(acpi_handle handle, u32 type, void *context)
 		if (!ACPI_FAILURE(status) || device)
 			break;
 
-		result = acpi_bus_add(handle);
+		result = acpi_bus_scan(handle);
 		if (result) {
 			acpi_handle_warn(handle, "Failed to add container\n");
 			break;
diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c
index 4a56a8b2e51e..420d24fc9388 100644
--- a/drivers/acpi/dock.c
+++ b/drivers/acpi/dock.c
@@ -317,7 +317,7 @@ static struct acpi_device * dock_create_acpi_device(acpi_handle handle)
 		 * no device created for this object,
 		 * so we should create one.
 		 */
-		ret = acpi_bus_add(handle);
+		ret = acpi_bus_scan(handle);
 		if (ret)
 			pr_debug("error adding bus, %x\n", -ret);
 
diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c
index a24ee43e06e4..9c5929a17d3a 100644
--- a/drivers/acpi/processor_driver.c
+++ b/drivers/acpi/processor_driver.c
@@ -699,7 +699,7 @@ static void acpi_processor_hotplug_notify(acpi_handle handle,
 		if (!acpi_bus_get_device(handle, &device))
 			break;
 
-		result = acpi_bus_add(handle);
+		result = acpi_bus_scan(handle);
 		if (result) {
 			acpi_handle_err(handle, "Unable to add the device\n");
 			break;
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 388b59c096dc..7c43bdc36abc 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1577,26 +1577,8 @@ static acpi_status acpi_bus_device_attach(acpi_handle handle, u32 lvl_not_used,
 	return status;
 }
 
-static int acpi_bus_scan(acpi_handle handle)
-{
-	void *device = NULL;
-
-	if (ACPI_SUCCESS(acpi_bus_check_add(handle, 0, NULL, &device)))
-		acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX,
-				    acpi_bus_check_add, NULL, NULL, &device);
-
-	if (!device)
-		return -ENODEV;
-
-	if (ACPI_SUCCESS(acpi_bus_device_attach(handle, 0, NULL, NULL)))
-		acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX,
-				    acpi_bus_device_attach, NULL, NULL, NULL);
-
-	return 0;
-}
-
 /**
- * acpi_bus_add - Add ACPI device node objects in a given namespace scope.
+ * acpi_bus_scan - Add ACPI device node objects in a given namespace scope.
  * @handle: Root of the namespace scope to scan.
  *
  * Scan a given ACPI tree (probably recently hot-plugged) and create and add
@@ -1607,18 +1589,24 @@ static int acpi_bus_scan(acpi_handle handle)
  * in the table trunk from which the kernel could create a device and add an
  * appropriate driver.
  */
-int acpi_bus_add(acpi_handle handle)
+int acpi_bus_scan(acpi_handle handle)
 {
-	int err;
+	void *device = NULL;
 
-	err = acpi_bus_scan(handle);
-	if (err)
-		return err;
+	if (ACPI_SUCCESS(acpi_bus_check_add(handle, 0, NULL, &device)))
+		acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX,
+				    acpi_bus_check_add, NULL, NULL, &device);
+
+	if (!device)
+		return -ENODEV;
+
+	if (ACPI_SUCCESS(acpi_bus_device_attach(handle, 0, NULL, NULL)))
+		acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX,
+				    acpi_bus_device_attach, NULL, NULL, NULL);
 
-	acpi_update_all_gpes();
 	return 0;
 }
-EXPORT_SYMBOL(acpi_bus_add);
+EXPORT_SYMBOL(acpi_bus_scan);
 
 static acpi_status acpi_bus_device_detach(acpi_handle handle, u32 lvl_not_used,
 					  void *not_used, void **ret_not_used)
@@ -1708,13 +1696,15 @@ int __init acpi_scan_init(void)
 		return result;
 
 	result = acpi_bus_get_device(ACPI_ROOT_OBJECT, &acpi_root);
-	if (!result)
-		result = acpi_bus_scan_fixed();
-
 	if (result)
+		return result;
+
+	result = acpi_bus_scan_fixed();
+	if (result) {
 		acpi_device_unregister(acpi_root);
-	else
-		acpi_update_all_gpes();
+		return result;
+	}
 
-	return result;
+	acpi_update_all_gpes();
+	return 0;
 }
-- 
cgit v1.2.3


From 9ce4e607111764673f7a59d7bc87a16ade5c7bba Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 17 Jan 2013 14:11:08 +0100
Subject: ACPI / PM: Move device power management functions to device_pm.c

Move ACPI device power management functions from drivers/acpi/bus.c
to drivers/acpi/device_pm.c.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/bus.c       | 293 -----------------------------------------------
 drivers/acpi/device_pm.c | 288 ++++++++++++++++++++++++++++++++++++++++++++++
 drivers/acpi/internal.h  |   1 -
 3 files changed, 288 insertions(+), 294 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 6c9b16c16660..01708a165368 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -178,299 +178,6 @@ int acpi_bus_get_private_data(acpi_handle handle, void **data)
 }
 EXPORT_SYMBOL(acpi_bus_get_private_data);
 
-/* --------------------------------------------------------------------------
-                                 Power Management
-   -------------------------------------------------------------------------- */
-
-/**
- * acpi_power_state_string - String representation of ACPI device power state.
- * @state: ACPI device power state to return the string representation of.
- */
-const char *acpi_power_state_string(int state)
-{
-	switch (state) {
-	case ACPI_STATE_D0:
-		return "D0";
-	case ACPI_STATE_D1:
-		return "D1";
-	case ACPI_STATE_D2:
-		return "D2";
-	case ACPI_STATE_D3_HOT:
-		return "D3hot";
-	case ACPI_STATE_D3_COLD:
-		return "D3";
-	default:
-		return "(unknown)";
-	}
-}
-
-/**
- * acpi_device_get_power - Get power state of an ACPI device.
- * @device: Device to get the power state of.
- * @state: Place to store the power state of the device.
- *
- * This function does not update the device's power.state field, but it may
- * update its parent's power.state field (when the parent's power state is
- * unknown and the device's power state turns out to be D0).
- */
-int acpi_device_get_power(struct acpi_device *device, int *state)
-{
-	int result = ACPI_STATE_UNKNOWN;
-
-	if (!device || !state)
-		return -EINVAL;
-
-	if (!device->flags.power_manageable) {
-		/* TBD: Non-recursive algorithm for walking up hierarchy. */
-		*state = device->parent ?
-			device->parent->power.state : ACPI_STATE_D0;
-		goto out;
-	}
-
-	/*
-	 * Get the device's power state either directly (via _PSC) or
-	 * indirectly (via power resources).
-	 */
-	if (device->power.flags.explicit_get) {
-		unsigned long long psc;
-		acpi_status status = acpi_evaluate_integer(device->handle,
-							   "_PSC", NULL, &psc);
-		if (ACPI_FAILURE(status))
-			return -ENODEV;
-
-		result = psc;
-	}
-	/* The test below covers ACPI_STATE_UNKNOWN too. */
-	if (result <= ACPI_STATE_D2) {
-	  ; /* Do nothing. */
-	} else if (device->power.flags.power_resources) {
-		int error = acpi_power_get_inferred_state(device, &result);
-		if (error)
-			return error;
-	} else if (result == ACPI_STATE_D3_HOT) {
-		result = ACPI_STATE_D3;
-	}
-
-	/*
-	 * If we were unsure about the device parent's power state up to this
-	 * point, the fact that the device is in D0 implies that the parent has
-	 * to be in D0 too.
-	 */
-	if (device->parent && device->parent->power.state == ACPI_STATE_UNKNOWN
-	    && result == ACPI_STATE_D0)
-		device->parent->power.state = ACPI_STATE_D0;
-
-	*state = result;
-
- out:
-	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device [%s] power state is %s\n",
-			  device->pnp.bus_id, acpi_power_state_string(*state)));
-
-	return 0;
-}
-
-
-/**
- * acpi_device_set_power - Set power state of an ACPI device.
- * @device: Device to set the power state of.
- * @state: New power state to set.
- *
- * Callers must ensure that the device is power manageable before using this
- * function.
- */
-int acpi_device_set_power(struct acpi_device *device, int state)
-{
-	int result = 0;
-	acpi_status status = AE_OK;
-	char object_name[5] = { '_', 'P', 'S', '0' + state, '\0' };
-	bool cut_power = false;
-
-	if (!device || (state < ACPI_STATE_D0) || (state > ACPI_STATE_D3_COLD))
-		return -EINVAL;
-
-	/* Make sure this is a valid target state */
-
-	if (state == device->power.state) {
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device is already at %s\n",
-				  acpi_power_state_string(state)));
-		return 0;
-	}
-
-	if (!device->power.states[state].flags.valid) {
-		printk(KERN_WARNING PREFIX "Device does not support %s\n",
-		       acpi_power_state_string(state));
-		return -ENODEV;
-	}
-	if (device->parent && (state < device->parent->power.state)) {
-		printk(KERN_WARNING PREFIX
-			      "Cannot set device to a higher-powered"
-			      " state than parent\n");
-		return -ENODEV;
-	}
-
-	/* For D3cold we should first transition into D3hot. */
-	if (state == ACPI_STATE_D3_COLD
-	    && device->power.states[ACPI_STATE_D3_COLD].flags.os_accessible) {
-		state = ACPI_STATE_D3_HOT;
-		object_name[3] = '3';
-		cut_power = true;
-	}
-
-	/*
-	 * Transition Power
-	 * ----------------
-	 * On transitions to a high-powered state we first apply power (via
-	 * power resources) then evalute _PSx.  Conversly for transitions to
-	 * a lower-powered state.
-	 */
-	if (state < device->power.state) {
-		if (device->power.state >= ACPI_STATE_D3_HOT &&
-		    state != ACPI_STATE_D0) {
-			printk(KERN_WARNING PREFIX
-			      "Cannot transition to non-D0 state from D3\n");
-			return -ENODEV;
-		}
-		if (device->power.flags.power_resources) {
-			result = acpi_power_transition(device, state);
-			if (result)
-				goto end;
-		}
-		if (device->power.states[state].flags.explicit_set) {
-			status = acpi_evaluate_object(device->handle,
-						      object_name, NULL, NULL);
-			if (ACPI_FAILURE(status)) {
-				result = -ENODEV;
-				goto end;
-			}
-		}
-	} else {
-		if (device->power.states[state].flags.explicit_set) {
-			status = acpi_evaluate_object(device->handle,
-						      object_name, NULL, NULL);
-			if (ACPI_FAILURE(status)) {
-				result = -ENODEV;
-				goto end;
-			}
-		}
-		if (device->power.flags.power_resources) {
-			result = acpi_power_transition(device, state);
-			if (result)
-				goto end;
-		}
-	}
-
-	if (cut_power)
-		result = acpi_power_transition(device, ACPI_STATE_D3_COLD);
-
-      end:
-	if (result)
-		printk(KERN_WARNING PREFIX
-			      "Device [%s] failed to transition to %s\n",
-			      device->pnp.bus_id,
-			      acpi_power_state_string(state));
-	else {
-		device->power.state = state;
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-				  "Device [%s] transitioned to %s\n",
-				  device->pnp.bus_id,
-				  acpi_power_state_string(state)));
-	}
-
-	return result;
-}
-EXPORT_SYMBOL(acpi_device_set_power);
-
-
-int acpi_bus_set_power(acpi_handle handle, int state)
-{
-	struct acpi_device *device;
-	int result;
-
-	result = acpi_bus_get_device(handle, &device);
-	if (result)
-		return result;
-
-	if (!device->flags.power_manageable) {
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-				"Device [%s] is not power manageable\n",
-				dev_name(&device->dev)));
-		return -ENODEV;
-	}
-
-	return acpi_device_set_power(device, state);
-}
-EXPORT_SYMBOL(acpi_bus_set_power);
-
-
-int acpi_bus_init_power(struct acpi_device *device)
-{
-	int state;
-	int result;
-
-	if (!device)
-		return -EINVAL;
-
-	device->power.state = ACPI_STATE_UNKNOWN;
-
-	result = acpi_device_get_power(device, &state);
-	if (result)
-		return result;
-
-	if (device->power.flags.power_resources)
-		result = acpi_power_on_resources(device, state);
-
-	if (!result)
-		device->power.state = state;
-
-	return result;
-}
-
-
-int acpi_bus_update_power(acpi_handle handle, int *state_p)
-{
-	struct acpi_device *device;
-	int state;
-	int result;
-
-	result = acpi_bus_get_device(handle, &device);
-	if (result)
-		return result;
-
-	result = acpi_device_get_power(device, &state);
-	if (result)
-		return result;
-
-	result = acpi_device_set_power(device, state);
-	if (!result && state_p)
-		*state_p = state;
-
-	return result;
-}
-EXPORT_SYMBOL_GPL(acpi_bus_update_power);
-
-
-bool acpi_bus_power_manageable(acpi_handle handle)
-{
-	struct acpi_device *device;
-	int result;
-
-	result = acpi_bus_get_device(handle, &device);
-	return result ? false : device->flags.power_manageable;
-}
-
-EXPORT_SYMBOL(acpi_bus_power_manageable);
-
-bool acpi_bus_can_wakeup(acpi_handle handle)
-{
-	struct acpi_device *device;
-	int result;
-
-	result = acpi_bus_get_device(handle, &device);
-	return result ? false : device->wakeup.flags.valid;
-}
-
-EXPORT_SYMBOL(acpi_bus_can_wakeup);
-
 static void acpi_print_osc_error(acpi_handle handle,
 	struct acpi_osc_context *context, char *error)
 {
diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c
index 8be4b29e38aa..8bca7465c78d 100644
--- a/drivers/acpi/device_pm.c
+++ b/drivers/acpi/device_pm.c
@@ -30,6 +30,12 @@
 
 #include <acpi/acpi.h>
 #include <acpi/acpi_bus.h>
+#include <acpi/acpi_drivers.h>
+
+#include "internal.h"
+
+#define _COMPONENT	ACPI_POWER_COMPONENT
+ACPI_MODULE_NAME("device_pm");
 
 static DEFINE_MUTEX(acpi_pm_notifier_lock);
 
@@ -93,6 +99,288 @@ acpi_status acpi_remove_pm_notifier(struct acpi_device *adev,
 	return status;
 }
 
+/**
+ * acpi_power_state_string - String representation of ACPI device power state.
+ * @state: ACPI device power state to return the string representation of.
+ */
+const char *acpi_power_state_string(int state)
+{
+	switch (state) {
+	case ACPI_STATE_D0:
+		return "D0";
+	case ACPI_STATE_D1:
+		return "D1";
+	case ACPI_STATE_D2:
+		return "D2";
+	case ACPI_STATE_D3_HOT:
+		return "D3hot";
+	case ACPI_STATE_D3_COLD:
+		return "D3";
+	default:
+		return "(unknown)";
+	}
+}
+
+/**
+ * acpi_device_get_power - Get power state of an ACPI device.
+ * @device: Device to get the power state of.
+ * @state: Place to store the power state of the device.
+ *
+ * This function does not update the device's power.state field, but it may
+ * update its parent's power.state field (when the parent's power state is
+ * unknown and the device's power state turns out to be D0).
+ */
+int acpi_device_get_power(struct acpi_device *device, int *state)
+{
+	int result = ACPI_STATE_UNKNOWN;
+
+	if (!device || !state)
+		return -EINVAL;
+
+	if (!device->flags.power_manageable) {
+		/* TBD: Non-recursive algorithm for walking up hierarchy. */
+		*state = device->parent ?
+			device->parent->power.state : ACPI_STATE_D0;
+		goto out;
+	}
+
+	/*
+	 * Get the device's power state either directly (via _PSC) or
+	 * indirectly (via power resources).
+	 */
+	if (device->power.flags.explicit_get) {
+		unsigned long long psc;
+		acpi_status status = acpi_evaluate_integer(device->handle,
+							   "_PSC", NULL, &psc);
+		if (ACPI_FAILURE(status))
+			return -ENODEV;
+
+		result = psc;
+	}
+	/* The test below covers ACPI_STATE_UNKNOWN too. */
+	if (result <= ACPI_STATE_D2) {
+	  ; /* Do nothing. */
+	} else if (device->power.flags.power_resources) {
+		int error = acpi_power_get_inferred_state(device, &result);
+		if (error)
+			return error;
+	} else if (result == ACPI_STATE_D3_HOT) {
+		result = ACPI_STATE_D3;
+	}
+
+	/*
+	 * If we were unsure about the device parent's power state up to this
+	 * point, the fact that the device is in D0 implies that the parent has
+	 * to be in D0 too.
+	 */
+	if (device->parent && device->parent->power.state == ACPI_STATE_UNKNOWN
+	    && result == ACPI_STATE_D0)
+		device->parent->power.state = ACPI_STATE_D0;
+
+	*state = result;
+
+ out:
+	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device [%s] power state is %s\n",
+			  device->pnp.bus_id, acpi_power_state_string(*state)));
+
+	return 0;
+}
+
+/**
+ * acpi_device_set_power - Set power state of an ACPI device.
+ * @device: Device to set the power state of.
+ * @state: New power state to set.
+ *
+ * Callers must ensure that the device is power manageable before using this
+ * function.
+ */
+int acpi_device_set_power(struct acpi_device *device, int state)
+{
+	int result = 0;
+	acpi_status status = AE_OK;
+	char object_name[5] = { '_', 'P', 'S', '0' + state, '\0' };
+	bool cut_power = false;
+
+	if (!device || (state < ACPI_STATE_D0) || (state > ACPI_STATE_D3_COLD))
+		return -EINVAL;
+
+	/* Make sure this is a valid target state */
+
+	if (state == device->power.state) {
+		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device is already at %s\n",
+				  acpi_power_state_string(state)));
+		return 0;
+	}
+
+	if (!device->power.states[state].flags.valid) {
+		printk(KERN_WARNING PREFIX "Device does not support %s\n",
+		       acpi_power_state_string(state));
+		return -ENODEV;
+	}
+	if (device->parent && (state < device->parent->power.state)) {
+		printk(KERN_WARNING PREFIX
+			      "Cannot set device to a higher-powered"
+			      " state than parent\n");
+		return -ENODEV;
+	}
+
+	/* For D3cold we should first transition into D3hot. */
+	if (state == ACPI_STATE_D3_COLD
+	    && device->power.states[ACPI_STATE_D3_COLD].flags.os_accessible) {
+		state = ACPI_STATE_D3_HOT;
+		object_name[3] = '3';
+		cut_power = true;
+	}
+
+	/*
+	 * Transition Power
+	 * ----------------
+	 * On transitions to a high-powered state we first apply power (via
+	 * power resources) then evalute _PSx.  Conversly for transitions to
+	 * a lower-powered state.
+	 */
+	if (state < device->power.state) {
+		if (device->power.state >= ACPI_STATE_D3_HOT &&
+		    state != ACPI_STATE_D0) {
+			printk(KERN_WARNING PREFIX
+			      "Cannot transition to non-D0 state from D3\n");
+			return -ENODEV;
+		}
+		if (device->power.flags.power_resources) {
+			result = acpi_power_transition(device, state);
+			if (result)
+				goto end;
+		}
+		if (device->power.states[state].flags.explicit_set) {
+			status = acpi_evaluate_object(device->handle,
+						      object_name, NULL, NULL);
+			if (ACPI_FAILURE(status)) {
+				result = -ENODEV;
+				goto end;
+			}
+		}
+	} else {
+		if (device->power.states[state].flags.explicit_set) {
+			status = acpi_evaluate_object(device->handle,
+						      object_name, NULL, NULL);
+			if (ACPI_FAILURE(status)) {
+				result = -ENODEV;
+				goto end;
+			}
+		}
+		if (device->power.flags.power_resources) {
+			result = acpi_power_transition(device, state);
+			if (result)
+				goto end;
+		}
+	}
+
+	if (cut_power)
+		result = acpi_power_transition(device, ACPI_STATE_D3_COLD);
+
+      end:
+	if (result)
+		printk(KERN_WARNING PREFIX
+			      "Device [%s] failed to transition to %s\n",
+			      device->pnp.bus_id,
+			      acpi_power_state_string(state));
+	else {
+		device->power.state = state;
+		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+				  "Device [%s] transitioned to %s\n",
+				  device->pnp.bus_id,
+				  acpi_power_state_string(state)));
+	}
+
+	return result;
+}
+EXPORT_SYMBOL(acpi_device_set_power);
+
+int acpi_bus_set_power(acpi_handle handle, int state)
+{
+	struct acpi_device *device;
+	int result;
+
+	result = acpi_bus_get_device(handle, &device);
+	if (result)
+		return result;
+
+	if (!device->flags.power_manageable) {
+		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+				"Device [%s] is not power manageable\n",
+				dev_name(&device->dev)));
+		return -ENODEV;
+	}
+
+	return acpi_device_set_power(device, state);
+}
+EXPORT_SYMBOL(acpi_bus_set_power);
+
+int acpi_bus_init_power(struct acpi_device *device)
+{
+	int state;
+	int result;
+
+	if (!device)
+		return -EINVAL;
+
+	device->power.state = ACPI_STATE_UNKNOWN;
+
+	result = acpi_device_get_power(device, &state);
+	if (result)
+		return result;
+
+	if (device->power.flags.power_resources)
+		result = acpi_power_on_resources(device, state);
+
+	if (!result)
+		device->power.state = state;
+
+	return result;
+}
+
+int acpi_bus_update_power(acpi_handle handle, int *state_p)
+{
+	struct acpi_device *device;
+	int state;
+	int result;
+
+	result = acpi_bus_get_device(handle, &device);
+	if (result)
+		return result;
+
+	result = acpi_device_get_power(device, &state);
+	if (result)
+		return result;
+
+	result = acpi_device_set_power(device, state);
+	if (!result && state_p)
+		*state_p = state;
+
+	return result;
+}
+EXPORT_SYMBOL_GPL(acpi_bus_update_power);
+
+bool acpi_bus_power_manageable(acpi_handle handle)
+{
+	struct acpi_device *device;
+	int result;
+
+	result = acpi_bus_get_device(handle, &device);
+	return result ? false : device->flags.power_manageable;
+}
+EXPORT_SYMBOL(acpi_bus_power_manageable);
+
+bool acpi_bus_can_wakeup(acpi_handle handle)
+{
+	struct acpi_device *device;
+	int result;
+
+	result = acpi_bus_get_device(handle, &device);
+	return result ? false : device->wakeup.flags.valid;
+}
+EXPORT_SYMBOL(acpi_bus_can_wakeup);
+
 /**
  * acpi_device_power_state - Get preferred power state of ACPI device.
  * @dev: Device whose preferred target power state to return.
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 07f61dbd8136..1f004f35bc67 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -61,7 +61,6 @@ int acpi_device_sleep_wake(struct acpi_device *dev,
 int acpi_power_get_inferred_state(struct acpi_device *device, int *state);
 int acpi_power_on_resources(struct acpi_device *device, int state);
 int acpi_power_transition(struct acpi_device *device, int state);
-int acpi_bus_init_power(struct acpi_device *device);
 
 int acpi_wakeup_device_init(void);
 void acpi_early_processor_set_pdc(void);
-- 
cgit v1.2.3


From 02040f0bba996f93e2a237089aff343515b49fcf Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 17 Jan 2013 14:11:09 +0100
Subject: ACPI / PM: Consolidate suspend-specific and hibernate-specific code

Move some suspend-specific and hibernate-specific code from
acpi_sleep_init() into separate functions to get rid of explicit
#ifdefs in acpi_sleep_init().  Use pr_info() to start and pr_cont()
to continue printing the supported ACPI sleep states line.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/sleep.c | 87 ++++++++++++++++++++++++++++++----------------------
 1 file changed, 51 insertions(+), 36 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 4ef0328579cc..277aa825edd9 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -579,7 +579,28 @@ static const struct platform_suspend_ops acpi_suspend_ops_old = {
 	.end = acpi_pm_end,
 	.recover = acpi_pm_finish,
 };
-#endif /* CONFIG_SUSPEND */
+
+static void acpi_sleep_suspend_setup(void)
+{
+	int i;
+
+	for (i = ACPI_STATE_S1; i < ACPI_STATE_S4; i++) {
+		acpi_status status;
+		u8 type_a, type_b;
+
+		status = acpi_get_sleep_type_data(i, &type_a, &type_b);
+		if (ACPI_SUCCESS(status)) {
+			sleep_states[i] = 1;
+			pr_cont(" S%d", i);
+		}
+	}
+
+	suspend_set_ops(old_suspend_ordering ?
+		&acpi_suspend_ops_old : &acpi_suspend_ops);
+}
+#else /* !CONFIG_SUSPEND */
+static inline void acpi_sleep_suspend_setup(void) {}
+#endif /* !CONFIG_SUSPEND */
 
 #ifdef CONFIG_HIBERNATION
 static unsigned long s4_hardware_signature;
@@ -700,7 +721,30 @@ static const struct platform_hibernation_ops acpi_hibernation_ops_old = {
 	.restore_cleanup = acpi_pm_thaw,
 	.recover = acpi_pm_finish,
 };
-#endif /* CONFIG_HIBERNATION */
+
+static void acpi_sleep_hibernate_setup(void)
+{
+	acpi_status status;
+	u8 type_a, type_b;
+
+	status = acpi_get_sleep_type_data(ACPI_STATE_S4, &type_a, &type_b);
+	if (ACPI_FAILURE(status))
+		return;
+
+	hibernation_set_ops(old_suspend_ordering ?
+			&acpi_hibernation_ops_old : &acpi_hibernation_ops);
+	sleep_states[ACPI_STATE_S4] = 1;
+	pr_cont(KERN_CONT " S4");
+	if (nosigcheck)
+		return;
+
+	acpi_get_table(ACPI_SIG_FACS, 1, (struct acpi_table_header **)&facs);
+	if (facs)
+		s4_hardware_signature = facs->hardware_signature;
+}
+#else /* !CONFIG_HIBERNATION */
+static inline void acpi_sleep_hibernate_setup(void) {}
+#endif /* !CONFIG_HIBERNATION */
 
 int acpi_suspend(u32 acpi_state)
 {
@@ -736,9 +780,6 @@ int __init acpi_sleep_init(void)
 {
 	acpi_status status;
 	u8 type_a, type_b;
-#ifdef CONFIG_SUSPEND
-	int i = 0;
-#endif
 
 	if (acpi_disabled)
 		return 0;
@@ -746,45 +787,19 @@ int __init acpi_sleep_init(void)
 	acpi_sleep_dmi_check();
 
 	sleep_states[ACPI_STATE_S0] = 1;
-	printk(KERN_INFO PREFIX "(supports S0");
+	pr_info(PREFIX "(supports S0");
 
-#ifdef CONFIG_SUSPEND
-	for (i = ACPI_STATE_S1; i < ACPI_STATE_S4; i++) {
-		status = acpi_get_sleep_type_data(i, &type_a, &type_b);
-		if (ACPI_SUCCESS(status)) {
-			sleep_states[i] = 1;
-			printk(KERN_CONT " S%d", i);
-		}
-	}
+	acpi_sleep_suspend_setup();
+	acpi_sleep_hibernate_setup();
 
-	suspend_set_ops(old_suspend_ordering ?
-		&acpi_suspend_ops_old : &acpi_suspend_ops);
-#endif
-
-#ifdef CONFIG_HIBERNATION
-	status = acpi_get_sleep_type_data(ACPI_STATE_S4, &type_a, &type_b);
-	if (ACPI_SUCCESS(status)) {
-		hibernation_set_ops(old_suspend_ordering ?
-			&acpi_hibernation_ops_old : &acpi_hibernation_ops);
-		sleep_states[ACPI_STATE_S4] = 1;
-		printk(KERN_CONT " S4");
-		if (!nosigcheck) {
-			acpi_get_table(ACPI_SIG_FACS, 1,
-				(struct acpi_table_header **)&facs);
-			if (facs)
-				s4_hardware_signature =
-					facs->hardware_signature;
-		}
-	}
-#endif
 	status = acpi_get_sleep_type_data(ACPI_STATE_S5, &type_a, &type_b);
 	if (ACPI_SUCCESS(status)) {
 		sleep_states[ACPI_STATE_S5] = 1;
-		printk(KERN_CONT " S5");
+		pr_cont(" S5");
 		pm_power_off_prepare = acpi_power_off_prepare;
 		pm_power_off = acpi_power_off;
 	}
-	printk(KERN_CONT ")\n");
+	pr_cont(")\n");
 	/*
 	 * Register the tts_notifier to reboot notifier list so that the _TTS
 	 * object can also be evaluated when the system enters S5.
-- 
cgit v1.2.3


From 4d56410b955c3f4f7651a088e1c7a19a0d5d4e4c Mon Sep 17 00:00:00 2001
From: Mika Westerberg <mika.westerberg@linux.intel.com>
Date: Mon, 14 Jan 2013 20:13:37 +0000
Subject: ACPI / PM: remove leading whitespace from #ifdef

It is there probably due to an accident, get rid of it so that the format
is consistent across the file.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/device_pm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c
index 8bca7465c78d..43116cdbabf9 100644
--- a/drivers/acpi/device_pm.c
+++ b/drivers/acpi/device_pm.c
@@ -592,7 +592,7 @@ static inline void acpi_wakeup_device(acpi_handle handle, u32 event,
 				      void *context) {}
 #endif /* CONFIG_PM_RUNTIME */
 
- #ifdef CONFIG_PM_SLEEP
+#ifdef CONFIG_PM_SLEEP
 /**
  * __acpi_device_sleep_wake - Enable or disable device to wake up the system.
  * @dev: Device to enable/desible to wake up the system.
-- 
cgit v1.2.3


From 13176bbf183c82281a0e65519780ffebff5abc9d Mon Sep 17 00:00:00 2001
From: Mika Westerberg <mika.westerberg@linux.intel.com>
Date: Thu, 17 Jan 2013 09:59:33 +0000
Subject: ACPI: add support for CSRT table

Core System Resources Table (CSRT) is a proprietary ACPI table that
contains resources for certain devices that are not found in the DSDT
table. Typically a shared DMA controller might be found here.

This patch adds support for this table. We go through all entries in the
table and make platform devices of them. The resources from the table are
passed with the platform device.

There is one special resource in the table and it is the DMA request line
base and number of request lines. This information might be needed by the
DMA controller driver as it needs to map the ACPI DMA request line number
to the actual request line understood by the hardware. This range is passed
as IORESOURCE_DMA resource.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/Makefile   |   1 +
 drivers/acpi/csrt.c     | 159 ++++++++++++++++++++++++++++++++++++++++++++++++
 drivers/acpi/internal.h |   1 +
 drivers/acpi/scan.c     |   1 +
 4 files changed, 162 insertions(+)
 create mode 100644 drivers/acpi/csrt.c

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile
index 4ee2e753306a..474fcfeba66c 100644
--- a/drivers/acpi/Makefile
+++ b/drivers/acpi/Makefile
@@ -38,6 +38,7 @@ acpi-y				+= processor_core.o
 acpi-y				+= ec.o
 acpi-$(CONFIG_ACPI_DOCK)	+= dock.o
 acpi-y				+= pci_root.o pci_link.o pci_irq.o
+acpi-y				+= csrt.o
 acpi-y				+= acpi_platform.o
 acpi-y				+= power.o
 acpi-y				+= event.o
diff --git a/drivers/acpi/csrt.c b/drivers/acpi/csrt.c
new file mode 100644
index 000000000000..5c15a91faf0b
--- /dev/null
+++ b/drivers/acpi/csrt.c
@@ -0,0 +1,159 @@
+/*
+ * Support for Core System Resources Table (CSRT)
+ *
+ * Copyright (C) 2013, Intel Corporation
+ * Authors: Mika Westerberg <mika.westerberg@linux.intel.com>
+ *	    Andy Shevchenko <andriy.shevchenko@linux.intel.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#define pr_fmt(fmt) "ACPI: CSRT: " fmt
+
+#include <linux/acpi.h>
+#include <linux/device.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/sizes.h>
+
+ACPI_MODULE_NAME("CSRT");
+
+static int __init acpi_csrt_parse_shared_info(struct platform_device *pdev,
+					      const struct acpi_csrt_group *grp)
+{
+	const struct acpi_csrt_shared_info *si;
+	struct resource res[3];
+	size_t nres;
+	int ret;
+
+	memset(res, 0, sizeof(res));
+	nres = 0;
+
+	si = (const struct acpi_csrt_shared_info *)&grp[1];
+	/*
+	 * The peripherals that are listed on CSRT typically support only
+	 * 32-bit addresses so we only use the low part of MMIO base for
+	 * now.
+	 */
+	if (!si->mmio_base_high && si->mmio_base_low) {
+		/*
+		 * There is no size of the memory resource in shared_info
+		 * so we assume that it is 4k here.
+		 */
+		res[nres].start = si->mmio_base_low;
+		res[nres].end = res[0].start + SZ_4K - 1;
+		res[nres++].flags = IORESOURCE_MEM;
+	}
+
+	if (si->gsi_interrupt) {
+		int irq = acpi_register_gsi(NULL, si->gsi_interrupt,
+					    si->interrupt_mode,
+					    si->interrupt_polarity);
+		res[nres].start = irq;
+		res[nres].end = irq;
+		res[nres++].flags = IORESOURCE_IRQ;
+	}
+
+	if (si->base_request_line || si->num_handshake_signals) {
+		/*
+		 * We pass the driver a DMA resource describing the range
+		 * of request lines the device supports.
+		 */
+		res[nres].start = si->base_request_line;
+		res[nres].end = res[nres].start + si->num_handshake_signals - 1;
+		res[nres++].flags = IORESOURCE_DMA;
+	}
+
+	ret = platform_device_add_resources(pdev, res, nres);
+	if (ret) {
+		if (si->gsi_interrupt)
+			acpi_unregister_gsi(si->gsi_interrupt);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int __init
+acpi_csrt_parse_resource_group(const struct acpi_csrt_group *grp)
+{
+	struct platform_device *pdev;
+	char vendor[5], name[16];
+	int ret, i;
+
+	vendor[0] = grp->vendor_id;
+	vendor[1] = grp->vendor_id >> 8;
+	vendor[2] = grp->vendor_id >> 16;
+	vendor[3] = grp->vendor_id >> 24;
+	vendor[4] = '\0';
+
+	if (grp->shared_info_length != sizeof(struct acpi_csrt_shared_info))
+		return -ENODEV;
+
+	snprintf(name, sizeof(name), "%s%04X", vendor, grp->device_id);
+	pdev = platform_device_alloc(name, PLATFORM_DEVID_AUTO);
+	if (!pdev)
+		return -ENOMEM;
+
+	/* Add resources based on the shared info */
+	ret = acpi_csrt_parse_shared_info(pdev, grp);
+	if (ret)
+		goto fail;
+
+	ret = platform_device_add(pdev);
+	if (ret)
+		goto fail;
+
+	for (i = 0; i < pdev->num_resources; i++)
+		dev_dbg(&pdev->dev, "%pR\n", &pdev->resource[i]);
+
+	return 0;
+
+fail:
+	platform_device_put(pdev);
+	return ret;
+}
+
+/*
+ * CSRT or Core System Resources Table is a proprietary ACPI table
+ * introduced by Microsoft. This table can contain devices that are not in
+ * the system DSDT table. In particular DMA controllers might be described
+ * here.
+ *
+ * We present these devices as normal platform devices that don't have ACPI
+ * IDs or handle. The platform device name will be something like
+ * <VENDOR><DEVID>.<n>.auto for example: INTL9C06.0.auto.
+ */
+void __init acpi_csrt_init(void)
+{
+	struct acpi_csrt_group *grp, *end;
+	struct acpi_table_csrt *csrt;
+	acpi_status status;
+	int ret;
+
+	status = acpi_get_table(ACPI_SIG_CSRT, 0,
+				(struct acpi_table_header **)&csrt);
+	if (ACPI_FAILURE(status)) {
+		if (status != AE_NOT_FOUND)
+			pr_warn("failed to get the CSRT table\n");
+		return;
+	}
+
+	pr_debug("parsing CSRT table for devices\n");
+
+	grp = (struct acpi_csrt_group *)(csrt + 1);
+	end = (struct acpi_csrt_group *)((void *)csrt + csrt->header.length);
+
+	while (grp < end) {
+		ret = acpi_csrt_parse_resource_group(grp);
+		if (ret) {
+			pr_warn("error in parsing resource group: %d\n", ret);
+			return;
+		}
+
+		grp = (struct acpi_csrt_group *)((void *)grp + grp->length);
+	}
+}
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index e050254ae143..4d2e4bf5f88d 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -26,6 +26,7 @@
 int init_acpi_device_notify(void);
 int acpi_scan_init(void);
 int acpi_sysfs_init(void);
+void acpi_csrt_init(void);
 
 #ifdef CONFIG_DEBUG_FS
 extern struct dentry *acpi_debugfs_dir;
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 7d164a966b0d..a85b4080c3ca 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1699,6 +1699,7 @@ int __init acpi_scan_init(void)
 
 	acpi_power_init();
 	acpi_pci_root_init();
+	acpi_csrt_init();
 
 	/*
 	 * Enumerate devices in the ACPI namespace.
-- 
cgit v1.2.3


From 7eaa2800408a32b9e21ead69ad578ad68039cae9 Mon Sep 17 00:00:00 2001
From: Mika Westerberg <mika.westerberg@linux.intel.com>
Date: Fri, 18 Jan 2013 14:09:35 +0000
Subject: ACPI / platform: fix comment about the platform device name

We don't use _UID anymore, instead the name will be taken from the
corresponding ACPI device (adev). Fix the obsolete comment.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpi_platform.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpi_platform.c b/drivers/acpi/acpi_platform.c
index db129b9f52cb..5554aea4bb0e 100644
--- a/drivers/acpi/acpi_platform.c
+++ b/drivers/acpi/acpi_platform.c
@@ -29,7 +29,7 @@ ACPI_MODULE_NAME("platform");
  * that's the case, create and register a platform device, populate its common
  * resources and returns a pointer to it.  Otherwise, return %NULL.
  *
- * The platform device's name will be taken from the @adev's _HID and _UID.
+ * Name of the platform device will be the same as @adev's.
  */
 struct platform_device *acpi_create_platform_device(struct acpi_device *adev)
 {
-- 
cgit v1.2.3


From a2367807b8d2c0aca5afb92fead2537dcd3d10b0 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Tue, 22 Jan 2013 12:54:38 +0100
Subject: ACPI / PM: Make acpi_bus_init_power() more robust

The ACPI specification requires the _PSC method to be present under
a device object if its power state cannot be inferred from the states
of power resources used by it (ACPI 5, Section 7.6.2).  However, it
also requires that (for power states D0-D2 and D3hot) if the _PSn
(n = 0, 1, 2, 3) method is present under the device object, it also
must be executed after the power resources have been set
appropriately for the device to go into power state Dn (D3 means
D3hot in this case).  Thus it is not clear from the specification
whether or not the _PSn method should be executed if the initial
configuraion of power resources used by the device indicates power
state Dn and the _PSC method is not present.

The current implementation of acpi_bus_init_power() is based on the
assumption that it should not be necessary to execute _PSn in the
above situation, but experience shows that in fact that assumption
need not be satisfied.  For this reason, make acpi_bus_init_power()
always execute _PSn if the initial configuration of device power
resources indicates power state Dn.

Reported-and-tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/device_pm.c | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c
index 43116cdbabf9..c87853f583d8 100644
--- a/drivers/acpi/device_pm.c
+++ b/drivers/acpi/device_pm.c
@@ -330,13 +330,23 @@ int acpi_bus_init_power(struct acpi_device *device)
 	if (result)
 		return result;
 
-	if (device->power.flags.power_resources)
+	if (state < ACPI_STATE_D3_COLD && device->power.flags.power_resources) {
 		result = acpi_power_on_resources(device, state);
+		if (result)
+			return result;
 
-	if (!result)
-		device->power.state = state;
+		if (device->power.states[state].flags.explicit_set) {
+			char method[5] = { '_', 'P', 'S', '0' + state, '\0' };
+			acpi_status status;
 
-	return result;
+			status = acpi_evaluate_object(device->handle, method,
+						      NULL, NULL);
+			if (ACPI_FAILURE(status))
+				return -ENODEV;
+		}
+	}
+	device->power.state = state;
+	return 0;
 }
 
 int acpi_bus_update_power(acpi_handle handle, int *state_p)
-- 
cgit v1.2.3


From 9c0f45e388fb9f9003ea22f98b84ffbab65ba554 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Tue, 22 Jan 2013 12:55:52 +0100
Subject: ACPI / PM: Introduce helper for executing _PSn methods

To reduce code duplication between acpi_device_set_power() and
acpi_bus_init_power(), introduce a new helper function for executing
ACPI devices' _PSn (n = 0..3) methods, acpi_dev_pm_explicit_set().

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/device_pm.c | 51 ++++++++++++++++++++++--------------------------
 1 file changed, 23 insertions(+), 28 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c
index c87853f583d8..d7f3908c2e88 100644
--- a/drivers/acpi/device_pm.c
+++ b/drivers/acpi/device_pm.c
@@ -186,6 +186,19 @@ int acpi_device_get_power(struct acpi_device *device, int *state)
 	return 0;
 }
 
+static int acpi_dev_pm_explicit_set(struct acpi_device *adev, int state)
+{
+	if (adev->power.states[state].flags.explicit_set) {
+		char method[5] = { '_', 'P', 'S', '0' + state, '\0' };
+		acpi_status status;
+
+		status = acpi_evaluate_object(adev->handle, method, NULL, NULL);
+		if (ACPI_FAILURE(status))
+			return -ENODEV;
+	}
+	return 0;
+}
+
 /**
  * acpi_device_set_power - Set power state of an ACPI device.
  * @device: Device to set the power state of.
@@ -197,8 +210,6 @@ int acpi_device_get_power(struct acpi_device *device, int *state)
 int acpi_device_set_power(struct acpi_device *device, int state)
 {
 	int result = 0;
-	acpi_status status = AE_OK;
-	char object_name[5] = { '_', 'P', 'S', '0' + state, '\0' };
 	bool cut_power = false;
 
 	if (!device || (state < ACPI_STATE_D0) || (state > ACPI_STATE_D3_COLD))
@@ -228,7 +239,6 @@ int acpi_device_set_power(struct acpi_device *device, int state)
 	if (state == ACPI_STATE_D3_COLD
 	    && device->power.states[ACPI_STATE_D3_COLD].flags.os_accessible) {
 		state = ACPI_STATE_D3_HOT;
-		object_name[3] = '3';
 		cut_power = true;
 	}
 
@@ -251,23 +261,14 @@ int acpi_device_set_power(struct acpi_device *device, int state)
 			if (result)
 				goto end;
 		}
-		if (device->power.states[state].flags.explicit_set) {
-			status = acpi_evaluate_object(device->handle,
-						      object_name, NULL, NULL);
-			if (ACPI_FAILURE(status)) {
-				result = -ENODEV;
-				goto end;
-			}
-		}
+		result = acpi_dev_pm_explicit_set(device, state);
+		if (result)
+			goto end;
 	} else {
-		if (device->power.states[state].flags.explicit_set) {
-			status = acpi_evaluate_object(device->handle,
-						      object_name, NULL, NULL);
-			if (ACPI_FAILURE(status)) {
-				result = -ENODEV;
-				goto end;
-			}
-		}
+		result = acpi_dev_pm_explicit_set(device, state);
+		if (result)
+			goto end;
+
 		if (device->power.flags.power_resources) {
 			result = acpi_power_transition(device, state);
 			if (result)
@@ -335,15 +336,9 @@ int acpi_bus_init_power(struct acpi_device *device)
 		if (result)
 			return result;
 
-		if (device->power.states[state].flags.explicit_set) {
-			char method[5] = { '_', 'P', 'S', '0' + state, '\0' };
-			acpi_status status;
-
-			status = acpi_evaluate_object(device->handle, method,
-						      NULL, NULL);
-			if (ACPI_FAILURE(status))
-				return -ENODEV;
-		}
+		result = acpi_dev_pm_explicit_set(device, state);
+		if (result)
+			return result;
 	}
 	device->power.state = state;
 	return 0;
-- 
cgit v1.2.3


From e78adb7595a9d585c60a7497345cb6eaeaaacefb Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Tue, 22 Jan 2013 12:56:04 +0100
Subject: ACPI / PM: Always evaluate _PSn after setting power resources

The ACPI specitication (ACPI 5, Sections 7.2.8 - 7.2.11) requires
that the _PSn (n = 0..3) method, if present, be executed after the
power resources for the given device power state have been set
appropriately.  However, acpi_device_set_power() does that only
if the new power state is going to be higher-power (lower-number)
than the power state the device is in already.  Otherwise, the
ordering is reverse to protect against situations in which _PSn
might access device registers unavailable after configuring the
power resources for power state Dn (D3 meaning D3hot).

Such situations are very unlikely to happen, though, and _PSn may
actually be implemented with the assumption that power resources
have been configured for power state Dn in advance, so change the
code to follow the specification literally.

This change was previously porposed in a different form by Lv Zheng.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/device_pm.c | 46 +++++++++++++++++-----------------------------
 1 file changed, 17 insertions(+), 29 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c
index d7f3908c2e88..2ce07cee0434 100644
--- a/drivers/acpi/device_pm.c
+++ b/drivers/acpi/device_pm.c
@@ -242,50 +242,38 @@ int acpi_device_set_power(struct acpi_device *device, int state)
 		cut_power = true;
 	}
 
+	if (state < device->power.state && state != ACPI_STATE_D0
+	    && device->power.state >= ACPI_STATE_D3_HOT) {
+		printk(KERN_WARNING PREFIX
+			"Cannot transition to non-D0 state from D3\n");
+		return -ENODEV;
+	}
+
 	/*
 	 * Transition Power
 	 * ----------------
-	 * On transitions to a high-powered state we first apply power (via
-	 * power resources) then evalute _PSx.  Conversly for transitions to
-	 * a lower-powered state.
+	 * In accordance with the ACPI specification first apply power (via
+	 * power resources) and then evalute _PSx.
 	 */
-	if (state < device->power.state) {
-		if (device->power.state >= ACPI_STATE_D3_HOT &&
-		    state != ACPI_STATE_D0) {
-			printk(KERN_WARNING PREFIX
-			      "Cannot transition to non-D0 state from D3\n");
-			return -ENODEV;
-		}
-		if (device->power.flags.power_resources) {
-			result = acpi_power_transition(device, state);
-			if (result)
-				goto end;
-		}
-		result = acpi_dev_pm_explicit_set(device, state);
+	if (device->power.flags.power_resources) {
+		result = acpi_power_transition(device, state);
 		if (result)
 			goto end;
-	} else {
-		result = acpi_dev_pm_explicit_set(device, state);
-		if (result)
-			goto end;
-
-		if (device->power.flags.power_resources) {
-			result = acpi_power_transition(device, state);
-			if (result)
-				goto end;
-		}
 	}
+	result = acpi_dev_pm_explicit_set(device, state);
+	if (result)
+		goto end;
 
 	if (cut_power)
 		result = acpi_power_transition(device, ACPI_STATE_D3_COLD);
 
-      end:
-	if (result)
+ end:
+	if (result) {
 		printk(KERN_WARNING PREFIX
 			      "Device [%s] failed to transition to %s\n",
 			      device->pnp.bus_id,
 			      acpi_power_state_string(state));
-	else {
+	} else {
 		device->power.state = state;
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 				  "Device [%s] transitioned to %s\n",
-- 
cgit v1.2.3


From 87e753b0065f94314ebdacf6593a172cdd7839c8 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Tue, 22 Jan 2013 12:56:16 +0100
Subject: ACPI / PM: Sanitize checks in acpi_power_on_resources()

After the only user of acpi_power_on_resources(),
acpi_bus_init_power(), has been changed to avoid calling it
for state equal to ACPI_STATE_D3_COLD, it doesn't have to special
case that state any more.

For this reason, modify the checks in acpi_power_on_resources()
so that it returns -EINVAL for ACPI_STATE_D3_COLD as it should.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/power.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index 089a7c39348f..6db261c237d4 100644
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -622,12 +622,9 @@ int acpi_power_get_inferred_state(struct acpi_device *device, int *state)
 
 int acpi_power_on_resources(struct acpi_device *device, int state)
 {
-	if (!device || state < ACPI_STATE_D0 || state > ACPI_STATE_D3_COLD)
+	if (!device || state < ACPI_STATE_D0 || state > ACPI_STATE_D3_HOT)
 		return -EINVAL;
 
-	if (state == ACPI_STATE_D3_COLD)
-		return 0;
-
 	return acpi_power_on_list(&device->power.states[state].resources);
 }
 
-- 
cgit v1.2.3


From 898fee4f6ed52b5b5dd159b221d2ad7ce40ae2dd Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Tue, 22 Jan 2013 12:56:26 +0100
Subject: ACPI / PM: Use string "D3cold" to represent ACPI_STATE_D3_COLD

Make acpi_power_state_string() return "D3cold" as the string
representation of ACPI power state D3cold instead of "D3" returned
currently, which is confusing.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/device_pm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c
index 2ce07cee0434..61ae99b09f1c 100644
--- a/drivers/acpi/device_pm.c
+++ b/drivers/acpi/device_pm.c
@@ -115,7 +115,7 @@ const char *acpi_power_state_string(int state)
 	case ACPI_STATE_D3_HOT:
 		return "D3hot";
 	case ACPI_STATE_D3_COLD:
-		return "D3";
+		return "D3cold";
 	default:
 		return "(unknown)";
 	}
-- 
cgit v1.2.3


From e5656271b0221a53e9f74856385112fdcec0dd60 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Tue, 22 Jan 2013 12:56:35 +0100
Subject: ACPI / PM: Fix device power state value after transitions to D3cold

When a transition to the D3cold power state is requested,
acpi_device_set_power() first carries out a transition to D3hot and
then turns off the device's power resources.  However, it fails to
update the device's power.state field appropriately and D3hot is
stored in it as a result.

Fix this, but make sure that the device's power state will be
D3hot if its power resources cannot be turned off in the final
step.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/device_pm.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c
index 61ae99b09f1c..4cbc9505b365 100644
--- a/drivers/acpi/device_pm.c
+++ b/drivers/acpi/device_pm.c
@@ -264,8 +264,11 @@ int acpi_device_set_power(struct acpi_device *device, int state)
 	if (result)
 		goto end;
 
-	if (cut_power)
-		result = acpi_power_transition(device, ACPI_STATE_D3_COLD);
+	if (cut_power) {
+		device->power.state = state;
+		state = ACPI_STATE_D3_COLD;
+		result = acpi_power_transition(device, state);
+	}
 
  end:
 	if (result) {
-- 
cgit v1.2.3


From e375325ce55eb841ccda54a4472cf3b0139ea5f2 Mon Sep 17 00:00:00 2001
From: Mika Westerberg <mika.westerberg@linux.intel.com>
Date: Fri, 18 Jan 2013 13:46:01 +0000
Subject: ACPI / platform: create LPSS clocks if Lynxpoint devices are found
 during scan

Intel Lynxpoint LPSS peripheral drivers depend on LPSS clock tree being
created in order to function properly. The clock tree is exposed as a
platform driver that binds to a device named 'clk-lpt'.

To support this we modify the acpi_create_platform_device() to take one
additional parameter called flags. This is passed from
acpi_platform_device_ids[] array when acpi_create_platform_device() is
called.

We then introduce a new flag ACPI_PLATFORM_CLK which is used to tell
acpi_create_platform_device() to create the platform clocks as well.

Finally we set the ACPI_PLATFORM_CLK flags for all the Lynxpoint LPSS
devices and make sure that when this flag is set we create the
corresponding clock tree platform device.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpi_platform.c | 25 ++++++++++++++++++++++++-
 drivers/acpi/internal.h      |  6 +++++-
 drivers/acpi/scan.c          | 22 ++++++++++++----------
 3 files changed, 41 insertions(+), 12 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpi_platform.c b/drivers/acpi/acpi_platform.c
index 5554aea4bb0e..2d1fb4c21605 100644
--- a/drivers/acpi/acpi_platform.c
+++ b/drivers/acpi/acpi_platform.c
@@ -13,6 +13,7 @@
 
 #include <linux/acpi.h>
 #include <linux/device.h>
+#include <linux/err.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
@@ -21,9 +22,25 @@
 
 ACPI_MODULE_NAME("platform");
 
+static int acpi_create_platform_clks(struct acpi_device *adev)
+{
+	static struct platform_device *pdev;
+
+	/* Create Lynxpoint LPSS clocks */
+	if (!pdev && !strncmp(acpi_device_hid(adev), "INT33C", 6)) {
+		pdev = platform_device_register_simple("clk-lpt", -1, NULL, 0);
+		if (IS_ERR(pdev))
+			return PTR_ERR(pdev);
+	}
+
+	return 0;
+}
+
 /**
  * acpi_create_platform_device - Create platform device for ACPI device node
  * @adev: ACPI device node to create a platform device for.
+ * @flags: ACPI_PLATFORM_* flags that affect the creation of the platform
+ *	   devices.
  *
  * Check if the given @adev can be represented as a platform device and, if
  * that's the case, create and register a platform device, populate its common
@@ -31,7 +48,8 @@ ACPI_MODULE_NAME("platform");
  *
  * Name of the platform device will be the same as @adev's.
  */
-struct platform_device *acpi_create_platform_device(struct acpi_device *adev)
+struct platform_device *acpi_create_platform_device(struct acpi_device *adev,
+						    unsigned long flags)
 {
 	struct platform_device *pdev = NULL;
 	struct acpi_device *acpi_parent;
@@ -41,6 +59,11 @@ struct platform_device *acpi_create_platform_device(struct acpi_device *adev)
 	struct resource *resources;
 	int count;
 
+	if ((flags & ACPI_PLATFORM_CLK) && acpi_create_platform_clks(adev)) {
+		dev_err(&adev->dev, "failed to create clocks\n");
+		return NULL;
+	}
+
 	/* If the ACPI node already has a physical device attached, skip it. */
 	if (adev->physical_node_count)
 		return NULL;
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 4d2e4bf5f88d..4b68373473de 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -100,6 +100,10 @@ static inline void suspend_nvs_restore(void) {}
   -------------------------------------------------------------------------- */
 struct platform_device;
 
-struct platform_device *acpi_create_platform_device(struct acpi_device *adev);
+/* Flags for acpi_create_platform_device */
+#define ACPI_PLATFORM_CLK	BIT(0)
+
+struct platform_device *acpi_create_platform_device(struct acpi_device *adev,
+						    unsigned long flags);
 
 #endif /* _ACPI_INTERNAL_H_ */
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index a85b4080c3ca..fe171aa7a98c 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -38,14 +38,14 @@ static const struct acpi_device_id acpi_platform_device_ids[] = {
 	{ "PNP0D40" },
 
 	/* Haswell LPSS devices */
-	{ "INT33C0", 0 },
-	{ "INT33C1", 0 },
-	{ "INT33C2", 0 },
-	{ "INT33C3", 0 },
-	{ "INT33C4", 0 },
-	{ "INT33C5", 0 },
-	{ "INT33C6", 0 },
-	{ "INT33C7", 0 },
+	{ "INT33C0", ACPI_PLATFORM_CLK },
+	{ "INT33C1", ACPI_PLATFORM_CLK },
+	{ "INT33C2", ACPI_PLATFORM_CLK },
+	{ "INT33C3", ACPI_PLATFORM_CLK },
+	{ "INT33C4", ACPI_PLATFORM_CLK },
+	{ "INT33C5", ACPI_PLATFORM_CLK },
+	{ "INT33C6", ACPI_PLATFORM_CLK },
+	{ "INT33C7", ACPI_PLATFORM_CLK },
 
 	{ }
 };
@@ -1553,6 +1553,7 @@ static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl_not_used,
 static acpi_status acpi_bus_device_attach(acpi_handle handle, u32 lvl_not_used,
 					  void *not_used, void **ret_not_used)
 {
+	const struct acpi_device_id *id;
 	acpi_status status = AE_OK;
 	struct acpi_device *device;
 	unsigned long long sta_not_used;
@@ -1568,9 +1569,10 @@ static acpi_status acpi_bus_device_attach(acpi_handle handle, u32 lvl_not_used,
 	if (acpi_bus_get_device(handle, &device))
 		return AE_CTRL_DEPTH;
 
-	if (!acpi_match_device_ids(device, acpi_platform_device_ids)) {
+	id = __acpi_match_device(device, acpi_platform_device_ids);
+	if (id) {
 		/* This is a known good platform device. */
-		acpi_create_platform_device(device);
+		acpi_create_platform_device(device, id->driver_data);
 	} else if (device_attach(&device->dev) < 0) {
 		status = AE_CTRL_DEPTH;
 	}
-- 
cgit v1.2.3


From cf860be639d86ed77af179c925085ae0721ae602 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 24 Jan 2013 12:49:49 +0100
Subject: ACPI / scan: Prevent device add uevents from racing with user space

ACPI core adds sysfs device files after the given devices have been
registered with device_register(), which is not appropriate, because
it may lead to race conditions with user space tools using those
files.

Fix the problem by delaying the KOBJ_ADD uevent for ACPI devices
until after all of the devices' sysfs files have been created.

This also fixes a use-after-free in acpi_device_unregister().

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/acpi/internal.h |  5 +++--
 drivers/acpi/power.c    |  3 ++-
 drivers/acpi/scan.c     | 20 +++++++++++++++-----
 3 files changed, 20 insertions(+), 8 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 1f004f35bc67..c5a61cd6c1a5 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -40,10 +40,11 @@ static inline void acpi_debugfs_init(void) { return; }
 #define ACPI_STA_DEFAULT (ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | \
 			  ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING)
 
-int acpi_device_register(struct acpi_device *device,
-			 void (*release)(struct device *));
+int acpi_device_add(struct acpi_device *device,
+		    void (*release)(struct device *));
 void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
 			     int type, unsigned long long sta);
+void acpi_device_add_finalize(struct acpi_device *device);
 void acpi_free_ids(struct acpi_device *device);
 
 /* --------------------------------------------------------------------------
diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index 6db261c237d4..3f16dd4db23e 100644
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -721,13 +721,14 @@ int acpi_add_power_resource(acpi_handle handle)
 	       acpi_device_bid(device), state ? "on" : "off");
 
 	device->flags.match_driver = true;
-	result = acpi_device_register(device, acpi_release_power_resource);
+	result = acpi_device_add(device, acpi_release_power_resource);
 	if (result)
 		goto err;
 
 	mutex_lock(&power_resource_list_lock);
 	list_add(&resource->list_node, &acpi_power_resource_list);
 	mutex_unlock(&power_resource_list_lock);
+	acpi_device_add_finalize(device);
 	return 0;
 
  err:
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 1fc57a349a3c..8b3b18846c8c 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -634,8 +634,8 @@ struct bus_type acpi_bus_type = {
 	.uevent		= acpi_device_uevent,
 };
 
-int acpi_device_register(struct acpi_device *device,
-			 void (*release)(struct device *))
+int acpi_device_add(struct acpi_device *device,
+		    void (*release)(struct device *))
 {
 	int result;
 	struct acpi_device_bus_id *acpi_device_bus_id, *new_bus_id;
@@ -705,7 +705,7 @@ int acpi_device_register(struct acpi_device *device,
 		device->dev.parent = &device->parent->dev;
 	device->dev.bus = &acpi_bus_type;
 	device->dev.release = release;
-	result = device_register(&device->dev);
+	result = device_add(&device->dev);
 	if (result) {
 		dev_err(&device->dev, "Error registering device\n");
 		goto err;
@@ -744,12 +744,13 @@ static void acpi_device_unregister(struct acpi_device *device)
 
 	acpi_power_add_remove_device(device, false);
 	acpi_device_remove_files(device);
-	device_unregister(&device->dev);
+	device_del(&device->dev);
 	/*
 	 * Drop the reference counts of all power resources the device depends
 	 * on and turn off the ones that have no more references.
 	 */
 	acpi_power_transition(device, ACPI_STATE_D3_COLD);
+	put_device(&device->dev);
 }
 
 /* --------------------------------------------------------------------------
@@ -1391,6 +1392,14 @@ void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
 	acpi_device_get_busid(device);
 	acpi_device_set_id(device);
 	acpi_bus_get_flags(device);
+	device_initialize(&device->dev);
+	dev_set_uevent_suppress(&device->dev, true);
+}
+
+void acpi_device_add_finalize(struct acpi_device *device)
+{
+	dev_set_uevent_suppress(&device->dev, false);
+	kobject_uevent(&device->dev.kobj, KOBJ_ADD);
 }
 
 static int acpi_add_single_object(struct acpi_device **child,
@@ -1412,13 +1421,14 @@ static int acpi_add_single_object(struct acpi_device **child,
 	acpi_bus_get_wakeup_device_flags(device);
 
 	device->flags.match_driver = match_driver;
-	result = acpi_device_register(device, acpi_device_release);
+	result = acpi_device_add(device, acpi_device_release);
 	if (result) {
 		acpi_device_release(&device->dev);
 		return result;
 	}
 
 	acpi_power_add_remove_device(device, true);
+	acpi_device_add_finalize(device);
 	acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer);
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Added %s [%s] parent %s\n",
 		dev_name(&device->dev), (char *) buffer.pointer,
-- 
cgit v1.2.3


From 836aedb1414d4724b2ec68dd19810960c593720c Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 24 Jan 2013 12:49:59 +0100
Subject: ACPI / PM: Expose power states of ACPI devices to user space

Make it possible to retrieve the current power state of a device with
ACPI power management from user space via sysfs by adding two new
attributes, power_state and real_power_state, to the sysfs directory
associated with the struct acpi_device object representing the
device's ACPI node.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/acpi/scan.c | 49 ++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 48 insertions(+), 1 deletion(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 8b3b18846c8c..9761d589f3f5 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -178,6 +178,32 @@ err_out:
 }
 EXPORT_SYMBOL(acpi_bus_hot_remove_device);
 
+static ssize_t real_power_state_show(struct device *dev,
+				     struct device_attribute *attr, char *buf)
+{
+	struct acpi_device *adev = to_acpi_device(dev);
+	int state;
+	int ret;
+
+	ret = acpi_device_get_power(adev, &state);
+	if (ret)
+		return ret;
+
+	return sprintf(buf, "%s\n", acpi_power_state_string(state));
+}
+
+static DEVICE_ATTR(real_power_state, 0444, real_power_state_show, NULL);
+
+static ssize_t power_state_show(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	struct acpi_device *adev = to_acpi_device(dev);
+
+	return sprintf(buf, "%s\n", acpi_power_state_string(adev->power.state));
+}
+
+static DEVICE_ATTR(power_state, 0444, power_state_show, NULL);
+
 static ssize_t
 acpi_eject_store(struct device *d, struct device_attribute *attr,
 		const char *buf, size_t count)
@@ -369,8 +395,22 @@ static int acpi_device_setup_files(struct acpi_device *dev)
          * hot-removal function from userland.
          */
 	status = acpi_get_handle(dev->handle, "_EJ0", &temp);
-	if (ACPI_SUCCESS(status))
+	if (ACPI_SUCCESS(status)) {
 		result = device_create_file(&dev->dev, &dev_attr_eject);
+		if (result)
+			return result;
+	}
+
+	if (dev->flags.power_manageable) {
+		result = device_create_file(&dev->dev, &dev_attr_power_state);
+		if (result)
+			return result;
+
+		if (dev->power.flags.power_resources)
+			result = device_create_file(&dev->dev,
+						    &dev_attr_real_power_state);
+	}
+
 end:
 	return result;
 }
@@ -380,6 +420,13 @@ static void acpi_device_remove_files(struct acpi_device *dev)
 	acpi_status status;
 	acpi_handle temp;
 
+	if (dev->flags.power_manageable) {
+		device_remove_file(&dev->dev, &dev_attr_power_state);
+		if (dev->power.flags.power_resources)
+			device_remove_file(&dev->dev,
+					   &dev_attr_real_power_state);
+	}
+
 	/*
 	 * If device has _STR, remove 'description' file
 	 */
-- 
cgit v1.2.3


From b1c0f99bfb89cd9b42e3119ab822a8102fa87909 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 24 Jan 2013 12:50:09 +0100
Subject: ACPI / PM: Expose current status of ACPI power resources

Since ACPI power resources are going to be used more extensively on
new hardware platforms, it becomes necessary for user space (powertop
in particular) to observe some properties of those resources for
diagnostics purposes.

For this reason, expose the current status of each ACPI power
resource to user space via sysfs by adding a new resource_in_use
attribute to the sysfs directory representing the given power
resource.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/acpi/power.c | 26 +++++++++++++++++++++++++-
 drivers/acpi/scan.c  |  3 +++
 2 files changed, 28 insertions(+), 1 deletion(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index 3f16dd4db23e..946720a4db57 100644
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -87,6 +87,12 @@ static DEFINE_MUTEX(power_resource_list_lock);
                              Power Resource Management
    -------------------------------------------------------------------------- */
 
+static inline
+struct acpi_power_resource *to_power_resource(struct acpi_device *device)
+{
+	return container_of(device, struct acpi_power_resource, device);
+}
+
 static struct acpi_power_resource *acpi_power_get_context(acpi_handle handle)
 {
 	struct acpi_device *device;
@@ -94,7 +100,7 @@ static struct acpi_power_resource *acpi_power_get_context(acpi_handle handle)
 	if (acpi_bus_get_device(handle, &device))
 		return NULL;
 
-	return container_of(device, struct acpi_power_resource, device);
+	return to_power_resource(device);
 }
 
 static int acpi_power_resources_list_add(acpi_handle handle,
@@ -678,6 +684,21 @@ static void acpi_release_power_resource(struct device *dev)
 	kfree(resource);
 }
 
+static ssize_t acpi_power_in_use_show(struct device *dev,
+				      struct device_attribute *attr,
+				      char *buf) {
+	struct acpi_power_resource *resource;
+
+	resource = to_power_resource(to_acpi_device(dev));
+	return sprintf(buf, "%u\n", !!resource->ref_count);
+}
+static DEVICE_ATTR(resource_in_use, 0444, acpi_power_in_use_show, NULL);
+
+static void acpi_power_sysfs_remove(struct acpi_device *device)
+{
+	device_remove_file(&device->dev, &dev_attr_resource_in_use);
+}
+
 int acpi_add_power_resource(acpi_handle handle)
 {
 	struct acpi_power_resource *resource;
@@ -725,6 +746,9 @@ int acpi_add_power_resource(acpi_handle handle)
 	if (result)
 		goto err;
 
+	if (!device_create_file(&device->dev, &dev_attr_resource_in_use))
+		device->remove = acpi_power_sysfs_remove;
+
 	mutex_lock(&power_resource_list_lock);
 	list_add(&resource->list_node, &acpi_power_resource_list);
 	mutex_unlock(&power_resource_list_lock);
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 9761d589f3f5..9801837876b7 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -791,6 +791,9 @@ static void acpi_device_unregister(struct acpi_device *device)
 
 	acpi_power_add_remove_device(device, false);
 	acpi_device_remove_files(device);
+	if (device->remove)
+		device->remove(device);
+
 	device_del(&device->dev);
 	/*
 	 * Drop the reference counts of all power resources the device depends
-- 
cgit v1.2.3


From 586ce51255d3220bb1d2bf81d32fa0cf7f58434f Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Fri, 25 Jan 2013 05:38:36 +0000
Subject: ACPICA: Update predefined info table

The predefined info table defines return types for specific control
methods. This patch updates predefined table as such enhancement has
already been done in ACPICA. This patch can also reduce source code
differences between Linux and ACPICA.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/acpredef.h | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/acpredef.h b/drivers/acpi/acpica/acpredef.h
index 55fff568561e..4fbc4be6c5a0 100644
--- a/drivers/acpi/acpica/acpredef.h
+++ b/drivers/acpi/acpica/acpredef.h
@@ -214,9 +214,8 @@ static const union acpi_predefined_info predefined_names[] = {
 	{{"_BCT", 1, ACPI_RTYPE_INTEGER}},
 	{{"_BDN", 0, ACPI_RTYPE_INTEGER}},
 	{{"_BFS", 1, 0}},
-	{{"_BIF", 0, ACPI_RTYPE_PACKAGE} }, /* Fixed-length (9 Int),(4 Str/Buf) */
-			  {{{ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 9,
-			     ACPI_RTYPE_STRING | ACPI_RTYPE_BUFFER}, 4, 0} },
+	{{"_BIF", 0, ACPI_RTYPE_PACKAGE}},	/* Fixed-length (9 Int),(4 Str) */
+	{{{ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 9, ACPI_RTYPE_STRING}, 4, 0}},
 
 	{{"_BIX", 0, ACPI_RTYPE_PACKAGE}},	/* Fixed-length (16 Int),(4 Str) */
 	{{{ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 16, ACPI_RTYPE_STRING}, 4,
@@ -238,7 +237,8 @@ static const union acpi_predefined_info predefined_names[] = {
 	{{"_CBA", 0, ACPI_RTYPE_INTEGER}}, /* See PCI firmware spec 3.0 */
 	{{"_CDM", 0, ACPI_RTYPE_INTEGER}},
 	{{"_CID", 0, ACPI_RTYPE_INTEGER | ACPI_RTYPE_STRING | ACPI_RTYPE_PACKAGE}}, /* Variable-length (Ints/Strs) */
-			  {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER | ACPI_RTYPE_STRING, 0,0}, 0,0}},
+	{{{ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER | ACPI_RTYPE_STRING, 0, 0}, 0,
+	  0}},
 
 	{{"_CLS", 0, ACPI_RTYPE_PACKAGE}},	/* Fixed-length (3 Int) */
 	{{{ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 3, 0}, 0, 0}},
@@ -253,7 +253,8 @@ static const union acpi_predefined_info predefined_names[] = {
 			  {{{ACPI_PTYPE2_COUNT, ACPI_RTYPE_INTEGER, 0,0}, 0,0}},
 
 	{{"_CST", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (1 Int(n), n Pkg (1 Buf/3 Int) */
-			  {{{ACPI_PTYPE2_PKG_COUNT,ACPI_RTYPE_BUFFER, 1, ACPI_RTYPE_INTEGER}, 3,0}},
+	{{{ACPI_PTYPE2_PKG_COUNT, ACPI_RTYPE_BUFFER, 1, ACPI_RTYPE_INTEGER}, 3,
+	  0}},
 
 	{{"_CWS", 1, ACPI_RTYPE_INTEGER}},
 	{{"_DCK", 1, ACPI_RTYPE_INTEGER}},
-- 
cgit v1.2.3


From 25f044e64568dd83de34c16c837a96bbb2b0cecb Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Fri, 25 Jan 2013 05:38:56 +0000
Subject: ACPICA: Update ACPICA copyrights to 2013

Includes all source headers and signons for the various tools.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/accommon.h   | 2 +-
 drivers/acpi/acpica/acdebug.h    | 2 +-
 drivers/acpi/acpica/acdispat.h   | 2 +-
 drivers/acpi/acpica/acevents.h   | 2 +-
 drivers/acpi/acpica/acglobal.h   | 2 +-
 drivers/acpi/acpica/achware.h    | 2 +-
 drivers/acpi/acpica/acinterp.h   | 2 +-
 drivers/acpi/acpica/aclocal.h    | 2 +-
 drivers/acpi/acpica/acmacros.h   | 2 +-
 drivers/acpi/acpica/acnamesp.h   | 2 +-
 drivers/acpi/acpica/acobject.h   | 2 +-
 drivers/acpi/acpica/acopcode.h   | 2 +-
 drivers/acpi/acpica/acparser.h   | 2 +-
 drivers/acpi/acpica/acpredef.h   | 2 +-
 drivers/acpi/acpica/acresrc.h    | 2 +-
 drivers/acpi/acpica/acstruct.h   | 2 +-
 drivers/acpi/acpica/actables.h   | 2 +-
 drivers/acpi/acpica/acutils.h    | 2 +-
 drivers/acpi/acpica/amlcode.h    | 2 +-
 drivers/acpi/acpica/amlresrc.h   | 2 +-
 drivers/acpi/acpica/dsargs.c     | 2 +-
 drivers/acpi/acpica/dscontrol.c  | 2 +-
 drivers/acpi/acpica/dsfield.c    | 2 +-
 drivers/acpi/acpica/dsinit.c     | 2 +-
 drivers/acpi/acpica/dsmethod.c   | 2 +-
 drivers/acpi/acpica/dsmthdat.c   | 2 +-
 drivers/acpi/acpica/dsobject.c   | 2 +-
 drivers/acpi/acpica/dsopcode.c   | 2 +-
 drivers/acpi/acpica/dsutils.c    | 2 +-
 drivers/acpi/acpica/dswexec.c    | 2 +-
 drivers/acpi/acpica/dswload.c    | 2 +-
 drivers/acpi/acpica/dswload2.c   | 2 +-
 drivers/acpi/acpica/dswscope.c   | 2 +-
 drivers/acpi/acpica/dswstate.c   | 2 +-
 drivers/acpi/acpica/evevent.c    | 2 +-
 drivers/acpi/acpica/evglock.c    | 2 +-
 drivers/acpi/acpica/evgpe.c      | 2 +-
 drivers/acpi/acpica/evgpeblk.c   | 2 +-
 drivers/acpi/acpica/evgpeinit.c  | 2 +-
 drivers/acpi/acpica/evgpeutil.c  | 2 +-
 drivers/acpi/acpica/evhandler.c  | 2 +-
 drivers/acpi/acpica/evmisc.c     | 2 +-
 drivers/acpi/acpica/evregion.c   | 2 +-
 drivers/acpi/acpica/evrgnini.c   | 2 +-
 drivers/acpi/acpica/evsci.c      | 2 +-
 drivers/acpi/acpica/evxface.c    | 2 +-
 drivers/acpi/acpica/evxfevnt.c   | 2 +-
 drivers/acpi/acpica/evxfgpe.c    | 2 +-
 drivers/acpi/acpica/evxfregn.c   | 2 +-
 drivers/acpi/acpica/exconfig.c   | 2 +-
 drivers/acpi/acpica/exconvrt.c   | 2 +-
 drivers/acpi/acpica/excreate.c   | 2 +-
 drivers/acpi/acpica/exdebug.c    | 2 +-
 drivers/acpi/acpica/exdump.c     | 2 +-
 drivers/acpi/acpica/exfield.c    | 2 +-
 drivers/acpi/acpica/exfldio.c    | 2 +-
 drivers/acpi/acpica/exmisc.c     | 2 +-
 drivers/acpi/acpica/exmutex.c    | 2 +-
 drivers/acpi/acpica/exnames.c    | 2 +-
 drivers/acpi/acpica/exoparg1.c   | 2 +-
 drivers/acpi/acpica/exoparg2.c   | 2 +-
 drivers/acpi/acpica/exoparg3.c   | 2 +-
 drivers/acpi/acpica/exoparg6.c   | 2 +-
 drivers/acpi/acpica/exprep.c     | 2 +-
 drivers/acpi/acpica/exregion.c   | 2 +-
 drivers/acpi/acpica/exresnte.c   | 2 +-
 drivers/acpi/acpica/exresolv.c   | 2 +-
 drivers/acpi/acpica/exresop.c    | 2 +-
 drivers/acpi/acpica/exstore.c    | 2 +-
 drivers/acpi/acpica/exstoren.c   | 2 +-
 drivers/acpi/acpica/exstorob.c   | 2 +-
 drivers/acpi/acpica/exsystem.c   | 2 +-
 drivers/acpi/acpica/exutils.c    | 2 +-
 drivers/acpi/acpica/hwacpi.c     | 2 +-
 drivers/acpi/acpica/hwesleep.c   | 2 +-
 drivers/acpi/acpica/hwgpe.c      | 2 +-
 drivers/acpi/acpica/hwpci.c      | 2 +-
 drivers/acpi/acpica/hwregs.c     | 2 +-
 drivers/acpi/acpica/hwsleep.c    | 2 +-
 drivers/acpi/acpica/hwtimer.c    | 2 +-
 drivers/acpi/acpica/hwvalid.c    | 2 +-
 drivers/acpi/acpica/hwxface.c    | 2 +-
 drivers/acpi/acpica/hwxfsleep.c  | 2 +-
 drivers/acpi/acpica/nsaccess.c   | 2 +-
 drivers/acpi/acpica/nsalloc.c    | 2 +-
 drivers/acpi/acpica/nsdump.c     | 2 +-
 drivers/acpi/acpica/nsdumpdv.c   | 2 +-
 drivers/acpi/acpica/nseval.c     | 2 +-
 drivers/acpi/acpica/nsinit.c     | 2 +-
 drivers/acpi/acpica/nsload.c     | 2 +-
 drivers/acpi/acpica/nsnames.c    | 2 +-
 drivers/acpi/acpica/nsobject.c   | 2 +-
 drivers/acpi/acpica/nsparse.c    | 2 +-
 drivers/acpi/acpica/nspredef.c   | 2 +-
 drivers/acpi/acpica/nsprepkg.c   | 2 +-
 drivers/acpi/acpica/nsrepair.c   | 2 +-
 drivers/acpi/acpica/nsrepair2.c  | 2 +-
 drivers/acpi/acpica/nssearch.c   | 2 +-
 drivers/acpi/acpica/nsutils.c    | 2 +-
 drivers/acpi/acpica/nswalk.c     | 2 +-
 drivers/acpi/acpica/nsxfeval.c   | 2 +-
 drivers/acpi/acpica/nsxfname.c   | 2 +-
 drivers/acpi/acpica/nsxfobj.c    | 2 +-
 drivers/acpi/acpica/psargs.c     | 2 +-
 drivers/acpi/acpica/psloop.c     | 2 +-
 drivers/acpi/acpica/psobject.c   | 2 +-
 drivers/acpi/acpica/psopcode.c   | 2 +-
 drivers/acpi/acpica/psopinfo.c   | 2 +-
 drivers/acpi/acpica/psparse.c    | 2 +-
 drivers/acpi/acpica/psscope.c    | 2 +-
 drivers/acpi/acpica/pstree.c     | 2 +-
 drivers/acpi/acpica/psutils.c    | 2 +-
 drivers/acpi/acpica/pswalk.c     | 2 +-
 drivers/acpi/acpica/psxface.c    | 2 +-
 drivers/acpi/acpica/rsaddr.c     | 2 +-
 drivers/acpi/acpica/rscalc.c     | 2 +-
 drivers/acpi/acpica/rscreate.c   | 2 +-
 drivers/acpi/acpica/rsdump.c     | 2 +-
 drivers/acpi/acpica/rsdumpinfo.c | 2 +-
 drivers/acpi/acpica/rsinfo.c     | 2 +-
 drivers/acpi/acpica/rsio.c       | 2 +-
 drivers/acpi/acpica/rsirq.c      | 2 +-
 drivers/acpi/acpica/rslist.c     | 2 +-
 drivers/acpi/acpica/rsmemory.c   | 2 +-
 drivers/acpi/acpica/rsmisc.c     | 2 +-
 drivers/acpi/acpica/rsserial.c   | 2 +-
 drivers/acpi/acpica/rsutils.c    | 2 +-
 drivers/acpi/acpica/rsxface.c    | 2 +-
 drivers/acpi/acpica/tbfadt.c     | 2 +-
 drivers/acpi/acpica/tbfind.c     | 2 +-
 drivers/acpi/acpica/tbinstal.c   | 2 +-
 drivers/acpi/acpica/tbutils.c    | 2 +-
 drivers/acpi/acpica/tbxface.c    | 2 +-
 drivers/acpi/acpica/tbxfload.c   | 2 +-
 drivers/acpi/acpica/tbxfroot.c   | 2 +-
 drivers/acpi/acpica/utaddress.c  | 2 +-
 drivers/acpi/acpica/utalloc.c    | 2 +-
 drivers/acpi/acpica/utcache.c    | 2 +-
 drivers/acpi/acpica/utcopy.c     | 2 +-
 drivers/acpi/acpica/utdebug.c    | 2 +-
 drivers/acpi/acpica/utdecode.c   | 2 +-
 drivers/acpi/acpica/utdelete.c   | 2 +-
 drivers/acpi/acpica/uteval.c     | 2 +-
 drivers/acpi/acpica/utexcep.c    | 2 +-
 drivers/acpi/acpica/utglobal.c   | 2 +-
 drivers/acpi/acpica/utids.c      | 2 +-
 drivers/acpi/acpica/utinit.c     | 2 +-
 drivers/acpi/acpica/utlock.c     | 2 +-
 drivers/acpi/acpica/utmath.c     | 2 +-
 drivers/acpi/acpica/utmisc.c     | 2 +-
 drivers/acpi/acpica/utmutex.c    | 2 +-
 drivers/acpi/acpica/utobject.c   | 2 +-
 drivers/acpi/acpica/utosi.c      | 2 +-
 drivers/acpi/acpica/utownerid.c  | 2 +-
 drivers/acpi/acpica/utresrc.c    | 2 +-
 drivers/acpi/acpica/utstate.c    | 2 +-
 drivers/acpi/acpica/utstring.c   | 2 +-
 drivers/acpi/acpica/uttrack.c    | 2 +-
 drivers/acpi/acpica/utxface.c    | 2 +-
 drivers/acpi/acpica/utxferror.c  | 2 +-
 drivers/acpi/acpica/utxfinit.c   | 2 +-
 drivers/acpi/acpica/utxfmutex.c  | 2 +-
 162 files changed, 162 insertions(+), 162 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/accommon.h b/drivers/acpi/acpica/accommon.h
index 8632d7136730..8a6c4a0d22db 100644
--- a/drivers/acpi/acpica/accommon.h
+++ b/drivers/acpi/acpica/accommon.h
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/acdebug.h b/drivers/acpi/acpica/acdebug.h
index c8dea18ccdc8..9feba08c29fe 100644
--- a/drivers/acpi/acpica/acdebug.h
+++ b/drivers/acpi/acpica/acdebug.h
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/acdispat.h b/drivers/acpi/acpica/acdispat.h
index ed33ebcdaebe..427db72a6302 100644
--- a/drivers/acpi/acpica/acdispat.h
+++ b/drivers/acpi/acpica/acdispat.h
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/acevents.h b/drivers/acpi/acpica/acevents.h
index 35a2cbce467b..ab0e97710381 100644
--- a/drivers/acpi/acpica/acevents.h
+++ b/drivers/acpi/acpica/acevents.h
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h
index 585d364fb7e5..7f6a9a984c2c 100644
--- a/drivers/acpi/acpica/acglobal.h
+++ b/drivers/acpi/acpica/acglobal.h
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/achware.h b/drivers/acpi/acpica/achware.h
index d902d31abc6c..6357e932bfd9 100644
--- a/drivers/acpi/acpica/achware.h
+++ b/drivers/acpi/acpica/achware.h
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/acinterp.h b/drivers/acpi/acpica/acinterp.h
index 16469b0e7b6a..8af8c9bdeb35 100644
--- a/drivers/acpi/acpica/acinterp.h
+++ b/drivers/acpi/acpica/acinterp.h
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h
index 5ce06935d9de..805f419086ab 100644
--- a/drivers/acpi/acpica/aclocal.h
+++ b/drivers/acpi/acpica/aclocal.h
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/acmacros.h b/drivers/acpi/acpica/acmacros.h
index 2db0f103403b..ed7943b9044f 100644
--- a/drivers/acpi/acpica/acmacros.h
+++ b/drivers/acpi/acpica/acmacros.h
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/acnamesp.h b/drivers/acpi/acpica/acnamesp.h
index bbfcd1b72b3b..02cd5482ff8b 100644
--- a/drivers/acpi/acpica/acnamesp.h
+++ b/drivers/acpi/acpica/acnamesp.h
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/acobject.h b/drivers/acpi/acpica/acobject.h
index 921262ea46d7..cc7ab6dd724e 100644
--- a/drivers/acpi/acpica/acobject.h
+++ b/drivers/acpi/acpica/acobject.h
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/acopcode.h b/drivers/acpi/acpica/acopcode.h
index d786a5128b78..3fc9ca7e8aa3 100644
--- a/drivers/acpi/acpica/acopcode.h
+++ b/drivers/acpi/acpica/acopcode.h
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/acparser.h b/drivers/acpi/acpica/acparser.h
index e8f5726a1ab3..aed319318835 100644
--- a/drivers/acpi/acpica/acparser.h
+++ b/drivers/acpi/acpica/acparser.h
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/acpredef.h b/drivers/acpi/acpica/acpredef.h
index 4fbc4be6c5a0..c11b66d5bde2 100644
--- a/drivers/acpi/acpica/acpredef.h
+++ b/drivers/acpi/acpica/acpredef.h
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/acresrc.h b/drivers/acpi/acpica/acresrc.h
index 89bc3aa99ede..f691d0e4d9fa 100644
--- a/drivers/acpi/acpica/acresrc.h
+++ b/drivers/acpi/acpica/acresrc.h
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/acstruct.h b/drivers/acpi/acpica/acstruct.h
index 937e66c65d1e..7896d85876ca 100644
--- a/drivers/acpi/acpica/acstruct.h
+++ b/drivers/acpi/acpica/acstruct.h
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/actables.h b/drivers/acpi/acpica/actables.h
index 6712965ba8ae..7755e915a007 100644
--- a/drivers/acpi/acpica/actables.h
+++ b/drivers/acpi/acpica/actables.h
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/acutils.h b/drivers/acpi/acpica/acutils.h
index 4e952111ca5a..0082fa0a6139 100644
--- a/drivers/acpi/acpica/acutils.h
+++ b/drivers/acpi/acpica/acutils.h
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/amlcode.h b/drivers/acpi/acpica/amlcode.h
index c26f8ff6c3b9..48a3e331b72d 100644
--- a/drivers/acpi/acpica/amlcode.h
+++ b/drivers/acpi/acpica/amlcode.h
@@ -7,7 +7,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/amlresrc.h b/drivers/acpi/acpica/amlresrc.h
index bdbb7d057085..87c26366d1df 100644
--- a/drivers/acpi/acpica/amlresrc.h
+++ b/drivers/acpi/acpica/amlresrc.h
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/dsargs.c b/drivers/acpi/acpica/dsargs.c
index c8b5e2565b98..fb09b08d7080 100644
--- a/drivers/acpi/acpica/dsargs.c
+++ b/drivers/acpi/acpica/dsargs.c
@@ -6,7 +6,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/dscontrol.c b/drivers/acpi/acpica/dscontrol.c
index 57895db3231a..7ea0f162f11c 100644
--- a/drivers/acpi/acpica/dscontrol.c
+++ b/drivers/acpi/acpica/dscontrol.c
@@ -6,7 +6,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/dsfield.c b/drivers/acpi/acpica/dsfield.c
index b5b904ee815f..feadeed1012d 100644
--- a/drivers/acpi/acpica/dsfield.c
+++ b/drivers/acpi/acpica/dsfield.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/dsinit.c b/drivers/acpi/acpica/dsinit.c
index 87eff701ecfa..bc8e63f7784b 100644
--- a/drivers/acpi/acpica/dsinit.c
+++ b/drivers/acpi/acpica/dsinit.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/dsmethod.c b/drivers/acpi/acpica/dsmethod.c
index 4e5873ab4f01..a9ffd44c18fe 100644
--- a/drivers/acpi/acpica/dsmethod.c
+++ b/drivers/acpi/acpica/dsmethod.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/dsmthdat.c b/drivers/acpi/acpica/dsmthdat.c
index 9a83b7e0f3ba..3da80460ce38 100644
--- a/drivers/acpi/acpica/dsmthdat.c
+++ b/drivers/acpi/acpica/dsmthdat.c
@@ -5,7 +5,7 @@
  ******************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/dsobject.c b/drivers/acpi/acpica/dsobject.c
index 82050bcd90e7..2e6288dffd58 100644
--- a/drivers/acpi/acpica/dsobject.c
+++ b/drivers/acpi/acpica/dsobject.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/dsopcode.c b/drivers/acpi/acpica/dsopcode.c
index 25d19252a13d..ee6367b8eaf7 100644
--- a/drivers/acpi/acpica/dsopcode.c
+++ b/drivers/acpi/acpica/dsopcode.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/dsutils.c b/drivers/acpi/acpica/dsutils.c
index 466f5f2e69ba..4d8c992a51d8 100644
--- a/drivers/acpi/acpica/dsutils.c
+++ b/drivers/acpi/acpica/dsutils.c
@@ -5,7 +5,7 @@
  ******************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/dswexec.c b/drivers/acpi/acpica/dswexec.c
index 9e0d21076c48..44f8325c2bae 100644
--- a/drivers/acpi/acpica/dswexec.c
+++ b/drivers/acpi/acpica/dswexec.c
@@ -6,7 +6,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/dswload.c b/drivers/acpi/acpica/dswload.c
index d2907407a64b..6e17c0e24e63 100644
--- a/drivers/acpi/acpica/dswload.c
+++ b/drivers/acpi/acpica/dswload.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/dswload2.c b/drivers/acpi/acpica/dswload2.c
index 379835748357..620a0230b726 100644
--- a/drivers/acpi/acpica/dswload2.c
+++ b/drivers/acpi/acpica/dswload2.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/dswscope.c b/drivers/acpi/acpica/dswscope.c
index f6c4295470ae..d67891de1b54 100644
--- a/drivers/acpi/acpica/dswscope.c
+++ b/drivers/acpi/acpica/dswscope.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/dswstate.c b/drivers/acpi/acpica/dswstate.c
index 3e65a15a735f..ecb12e2137ff 100644
--- a/drivers/acpi/acpica/dswstate.c
+++ b/drivers/acpi/acpica/dswstate.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/evevent.c b/drivers/acpi/acpica/evevent.c
index d4acfbbe5b29..b8ea0b26cde3 100644
--- a/drivers/acpi/acpica/evevent.c
+++ b/drivers/acpi/acpica/evevent.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/evglock.c b/drivers/acpi/acpica/evglock.c
index af14a7137632..a621481c6cf2 100644
--- a/drivers/acpi/acpica/evglock.c
+++ b/drivers/acpi/acpica/evglock.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/evgpe.c b/drivers/acpi/acpica/evgpe.c
index 052d4c847012..b9adb9a7ed85 100644
--- a/drivers/acpi/acpica/evgpe.c
+++ b/drivers/acpi/acpica/evgpe.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/evgpeblk.c b/drivers/acpi/acpica/evgpeblk.c
index 78db9f5bb1e1..a2d688bbac02 100644
--- a/drivers/acpi/acpica/evgpeblk.c
+++ b/drivers/acpi/acpica/evgpeblk.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/evgpeinit.c b/drivers/acpi/acpica/evgpeinit.c
index 8ac86b0190a2..72b8f6b3f4ca 100644
--- a/drivers/acpi/acpica/evgpeinit.c
+++ b/drivers/acpi/acpica/evgpeinit.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/evgpeutil.c b/drivers/acpi/acpica/evgpeutil.c
index 228a0c3b1d49..b24dbb80fab8 100644
--- a/drivers/acpi/acpica/evgpeutil.c
+++ b/drivers/acpi/acpica/evgpeutil.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/evhandler.c b/drivers/acpi/acpica/evhandler.c
index 95e52585bb9b..d4f83112c2e2 100644
--- a/drivers/acpi/acpica/evhandler.c
+++ b/drivers/acpi/acpica/evhandler.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/evmisc.c b/drivers/acpi/acpica/evmisc.c
index 51f537937c1f..c986b2336b81 100644
--- a/drivers/acpi/acpica/evmisc.c
+++ b/drivers/acpi/acpica/evmisc.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/evregion.c b/drivers/acpi/acpica/evregion.c
index d1fa91d0b5b1..6555e350fc1f 100644
--- a/drivers/acpi/acpica/evregion.c
+++ b/drivers/acpi/acpica/evregion.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/evrgnini.c b/drivers/acpi/acpica/evrgnini.c
index 1474241bfc7e..3bb616794b3b 100644
--- a/drivers/acpi/acpica/evrgnini.c
+++ b/drivers/acpi/acpica/evrgnini.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/evsci.c b/drivers/acpi/acpica/evsci.c
index 6c90f15460b0..f4b43bede015 100644
--- a/drivers/acpi/acpica/evsci.c
+++ b/drivers/acpi/acpica/evsci.c
@@ -6,7 +6,7 @@
  ******************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/evxface.c b/drivers/acpi/acpica/evxface.c
index db820600b503..ddffd6847914 100644
--- a/drivers/acpi/acpica/evxface.c
+++ b/drivers/acpi/acpica/evxface.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/evxfevnt.c b/drivers/acpi/acpica/evxfevnt.c
index be57f49dafbd..d6e4e42316db 100644
--- a/drivers/acpi/acpica/evxfevnt.c
+++ b/drivers/acpi/acpica/evxfevnt.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/evxfgpe.c b/drivers/acpi/acpica/evxfgpe.c
index 36f8ad87670b..aff4cc261211 100644
--- a/drivers/acpi/acpica/evxfgpe.c
+++ b/drivers/acpi/acpica/evxfgpe.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/evxfregn.c b/drivers/acpi/acpica/evxfregn.c
index 96b412d03950..96c9e5f355ae 100644
--- a/drivers/acpi/acpica/evxfregn.c
+++ b/drivers/acpi/acpica/evxfregn.c
@@ -6,7 +6,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/exconfig.c b/drivers/acpi/acpica/exconfig.c
index f214dbfc4047..d93b70be60ad 100644
--- a/drivers/acpi/acpica/exconfig.c
+++ b/drivers/acpi/acpica/exconfig.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/exconvrt.c b/drivers/acpi/acpica/exconvrt.c
index d6a7b6fe359a..d2b9613bbf01 100644
--- a/drivers/acpi/acpica/exconvrt.c
+++ b/drivers/acpi/acpica/exconvrt.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/excreate.c b/drivers/acpi/acpica/excreate.c
index 66554bc6f9a8..26a13f67977e 100644
--- a/drivers/acpi/acpica/excreate.c
+++ b/drivers/acpi/acpica/excreate.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/exdebug.c b/drivers/acpi/acpica/exdebug.c
index d7c9f51608a7..7eb853cd279f 100644
--- a/drivers/acpi/acpica/exdebug.c
+++ b/drivers/acpi/acpica/exdebug.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/exdump.c b/drivers/acpi/acpica/exdump.c
index 8698bffec47c..e5a3c249f7fa 100644
--- a/drivers/acpi/acpica/exdump.c
+++ b/drivers/acpi/acpica/exdump.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/exfield.c b/drivers/acpi/acpica/exfield.c
index ebc55fbf3ff7..7d4bae71e8c6 100644
--- a/drivers/acpi/acpica/exfield.c
+++ b/drivers/acpi/acpica/exfield.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/exfldio.c b/drivers/acpi/acpica/exfldio.c
index 2c2146cfa6a1..ec7f5690031b 100644
--- a/drivers/acpi/acpica/exfldio.c
+++ b/drivers/acpi/acpica/exfldio.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/exmisc.c b/drivers/acpi/acpica/exmisc.c
index 84058705ed12..72a2a13b6d36 100644
--- a/drivers/acpi/acpica/exmisc.c
+++ b/drivers/acpi/acpica/exmisc.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/exmutex.c b/drivers/acpi/acpica/exmutex.c
index 02157ef486dd..7be0205ad067 100644
--- a/drivers/acpi/acpica/exmutex.c
+++ b/drivers/acpi/acpica/exmutex.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/exnames.c b/drivers/acpi/acpica/exnames.c
index 2ff578a16adc..14689dec4960 100644
--- a/drivers/acpi/acpica/exnames.c
+++ b/drivers/acpi/acpica/exnames.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/exoparg1.c b/drivers/acpi/acpica/exoparg1.c
index cf50c6c6d926..b60c877f5906 100644
--- a/drivers/acpi/acpica/exoparg1.c
+++ b/drivers/acpi/acpica/exoparg1.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/exoparg2.c b/drivers/acpi/acpica/exoparg2.c
index ee5634a074c4..e491e46f17df 100644
--- a/drivers/acpi/acpica/exoparg2.c
+++ b/drivers/acpi/acpica/exoparg2.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/exoparg3.c b/drivers/acpi/acpica/exoparg3.c
index 2c89b4651f08..2d7491f3126e 100644
--- a/drivers/acpi/acpica/exoparg3.c
+++ b/drivers/acpi/acpica/exoparg3.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/exoparg6.c b/drivers/acpi/acpica/exoparg6.c
index 3e08695c3b30..b76b97002dff 100644
--- a/drivers/acpi/acpica/exoparg6.c
+++ b/drivers/acpi/acpica/exoparg6.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/exprep.c b/drivers/acpi/acpica/exprep.c
index 60ee5e906ed4..d6eab81f54fb 100644
--- a/drivers/acpi/acpica/exprep.c
+++ b/drivers/acpi/acpica/exprep.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/exregion.c b/drivers/acpi/acpica/exregion.c
index 28d3cd975490..182abaf045e1 100644
--- a/drivers/acpi/acpica/exregion.c
+++ b/drivers/acpi/acpica/exregion.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/exresnte.c b/drivers/acpi/acpica/exresnte.c
index 6239956786eb..8565b6bd12bb 100644
--- a/drivers/acpi/acpica/exresnte.c
+++ b/drivers/acpi/acpica/exresnte.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/exresolv.c b/drivers/acpi/acpica/exresolv.c
index cc176b245e22..e4f9dfbb2a13 100644
--- a/drivers/acpi/acpica/exresolv.c
+++ b/drivers/acpi/acpica/exresolv.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/exresop.c b/drivers/acpi/acpica/exresop.c
index b9ebff2f6a09..9fb9f5e9a4da 100644
--- a/drivers/acpi/acpica/exresop.c
+++ b/drivers/acpi/acpica/exresop.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/exstore.c b/drivers/acpi/acpica/exstore.c
index 4ff37e8e0018..93c6049c2d75 100644
--- a/drivers/acpi/acpica/exstore.c
+++ b/drivers/acpi/acpica/exstore.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/exstoren.c b/drivers/acpi/acpica/exstoren.c
index 85a74b74e372..1cefe777068e 100644
--- a/drivers/acpi/acpica/exstoren.c
+++ b/drivers/acpi/acpica/exstoren.c
@@ -6,7 +6,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/exstorob.c b/drivers/acpi/acpica/exstorob.c
index b5f339cb1305..26e371073b1a 100644
--- a/drivers/acpi/acpica/exstorob.c
+++ b/drivers/acpi/acpica/exstorob.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/exsystem.c b/drivers/acpi/acpica/exsystem.c
index c8a0ad5c1f55..6578dee2e51b 100644
--- a/drivers/acpi/acpica/exsystem.c
+++ b/drivers/acpi/acpica/exsystem.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/exutils.c b/drivers/acpi/acpica/exutils.c
index e624958f33b8..b205cbb4b50c 100644
--- a/drivers/acpi/acpica/exutils.c
+++ b/drivers/acpi/acpica/exutils.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/hwacpi.c b/drivers/acpi/acpica/hwacpi.c
index 2613e2945af3..deb3f61e2bd1 100644
--- a/drivers/acpi/acpica/hwacpi.c
+++ b/drivers/acpi/acpica/hwacpi.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/hwesleep.c b/drivers/acpi/acpica/hwesleep.c
index 6c0b1a9d5a8c..5e5f76230f5e 100644
--- a/drivers/acpi/acpica/hwesleep.c
+++ b/drivers/acpi/acpica/hwesleep.c
@@ -6,7 +6,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/hwgpe.c b/drivers/acpi/acpica/hwgpe.c
index 095666bdad07..d84fd8399226 100644
--- a/drivers/acpi/acpica/hwgpe.c
+++ b/drivers/acpi/acpica/hwgpe.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/hwpci.c b/drivers/acpi/acpica/hwpci.c
index 65bc3453a29c..0889a629505f 100644
--- a/drivers/acpi/acpica/hwpci.c
+++ b/drivers/acpi/acpica/hwpci.c
@@ -5,7 +5,7 @@
  ******************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/hwregs.c b/drivers/acpi/acpica/hwregs.c
index fd4e2dc2c641..083d6551f0e2 100644
--- a/drivers/acpi/acpica/hwregs.c
+++ b/drivers/acpi/acpica/hwregs.c
@@ -6,7 +6,7 @@
  ******************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/hwsleep.c b/drivers/acpi/acpica/hwsleep.c
index 675a8f865063..e3828cc4361b 100644
--- a/drivers/acpi/acpica/hwsleep.c
+++ b/drivers/acpi/acpica/hwsleep.c
@@ -6,7 +6,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/hwtimer.c b/drivers/acpi/acpica/hwtimer.c
index 4e741d85e6b4..0c1a8bbd05d6 100644
--- a/drivers/acpi/acpica/hwtimer.c
+++ b/drivers/acpi/acpica/hwtimer.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/hwvalid.c b/drivers/acpi/acpica/hwvalid.c
index 70686cd0332e..eab70d58852a 100644
--- a/drivers/acpi/acpica/hwvalid.c
+++ b/drivers/acpi/acpica/hwvalid.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/hwxface.c b/drivers/acpi/acpica/hwxface.c
index e835645dde97..a4bac0881374 100644
--- a/drivers/acpi/acpica/hwxface.c
+++ b/drivers/acpi/acpica/hwxface.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/hwxfsleep.c b/drivers/acpi/acpica/hwxfsleep.c
index ca4df0f1a621..35eebdac0f9d 100644
--- a/drivers/acpi/acpica/hwxfsleep.c
+++ b/drivers/acpi/acpica/hwxfsleep.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/nsaccess.c b/drivers/acpi/acpica/nsaccess.c
index d70eaf39dfdf..8769cf83b044 100644
--- a/drivers/acpi/acpica/nsaccess.c
+++ b/drivers/acpi/acpica/nsaccess.c
@@ -5,7 +5,7 @@
  ******************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/nsalloc.c b/drivers/acpi/acpica/nsalloc.c
index 15143c44f5e5..243737363fb8 100644
--- a/drivers/acpi/acpica/nsalloc.c
+++ b/drivers/acpi/acpica/nsalloc.c
@@ -5,7 +5,7 @@
  ******************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/nsdump.c b/drivers/acpi/acpica/nsdump.c
index 37b0e688a1d8..ce6e97326205 100644
--- a/drivers/acpi/acpica/nsdump.c
+++ b/drivers/acpi/acpica/nsdump.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/nsdumpdv.c b/drivers/acpi/acpica/nsdumpdv.c
index 4ae93602b0ff..409ae80824d1 100644
--- a/drivers/acpi/acpica/nsdumpdv.c
+++ b/drivers/acpi/acpica/nsdumpdv.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/nseval.c b/drivers/acpi/acpica/nseval.c
index 69074be498e8..1538f3eb2a8f 100644
--- a/drivers/acpi/acpica/nseval.c
+++ b/drivers/acpi/acpica/nseval.c
@@ -5,7 +5,7 @@
  ******************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/nsinit.c b/drivers/acpi/acpica/nsinit.c
index 0f8de6e18c58..2a431ec50a25 100644
--- a/drivers/acpi/acpica/nsinit.c
+++ b/drivers/acpi/acpica/nsinit.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/nsload.c b/drivers/acpi/acpica/nsload.c
index 911f99127b99..0a7badc3179f 100644
--- a/drivers/acpi/acpica/nsload.c
+++ b/drivers/acpi/acpica/nsload.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/nsnames.c b/drivers/acpi/acpica/nsnames.c
index 7d34641865ea..90a0380fb8a0 100644
--- a/drivers/acpi/acpica/nsnames.c
+++ b/drivers/acpi/acpica/nsnames.c
@@ -5,7 +5,7 @@
  ******************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/nsobject.c b/drivers/acpi/acpica/nsobject.c
index e69f7fa2579d..7a736f4d1fd8 100644
--- a/drivers/acpi/acpica/nsobject.c
+++ b/drivers/acpi/acpica/nsobject.c
@@ -6,7 +6,7 @@
  ******************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/nsparse.c b/drivers/acpi/acpica/nsparse.c
index 233f756d5cfa..35dde8151c0d 100644
--- a/drivers/acpi/acpica/nsparse.c
+++ b/drivers/acpi/acpica/nsparse.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/nspredef.c b/drivers/acpi/acpica/nspredef.c
index 909520923fbe..224c30053401 100644
--- a/drivers/acpi/acpica/nspredef.c
+++ b/drivers/acpi/acpica/nspredef.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/nsprepkg.c b/drivers/acpi/acpica/nsprepkg.c
index c27be70f69bf..a40155467d2e 100644
--- a/drivers/acpi/acpica/nsprepkg.c
+++ b/drivers/acpi/acpica/nsprepkg.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/nsrepair.c b/drivers/acpi/acpica/nsrepair.c
index 8c5f292860fc..9e833353c06a 100644
--- a/drivers/acpi/acpica/nsrepair.c
+++ b/drivers/acpi/acpica/nsrepair.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/nsrepair2.c b/drivers/acpi/acpica/nsrepair2.c
index fdb818d72a07..ba4d98287c6a 100644
--- a/drivers/acpi/acpica/nsrepair2.c
+++ b/drivers/acpi/acpica/nsrepair2.c
@@ -6,7 +6,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/nssearch.c b/drivers/acpi/acpica/nssearch.c
index b7f426482e52..5d43efc53a61 100644
--- a/drivers/acpi/acpica/nssearch.c
+++ b/drivers/acpi/acpica/nssearch.c
@@ -5,7 +5,7 @@
  ******************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/nsutils.c b/drivers/acpi/acpica/nsutils.c
index a771c8cd0e7c..686420df684f 100644
--- a/drivers/acpi/acpica/nsutils.c
+++ b/drivers/acpi/acpica/nsutils.c
@@ -6,7 +6,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/nswalk.c b/drivers/acpi/acpica/nswalk.c
index 4657e75624c4..e70911a9e441 100644
--- a/drivers/acpi/acpica/nswalk.c
+++ b/drivers/acpi/acpica/nswalk.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/nsxfeval.c b/drivers/acpi/acpica/nsxfeval.c
index 1070eeefcbce..fc69949151bb 100644
--- a/drivers/acpi/acpica/nsxfeval.c
+++ b/drivers/acpi/acpica/nsxfeval.c
@@ -6,7 +6,7 @@
  ******************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/nsxfname.c b/drivers/acpi/acpica/nsxfname.c
index 1664fad5e303..f3a4d95899f7 100644
--- a/drivers/acpi/acpica/nsxfname.c
+++ b/drivers/acpi/acpica/nsxfname.c
@@ -6,7 +6,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/nsxfobj.c b/drivers/acpi/acpica/nsxfobj.c
index 9d029dac6b64..c0853ef294e4 100644
--- a/drivers/acpi/acpica/nsxfobj.c
+++ b/drivers/acpi/acpica/nsxfobj.c
@@ -6,7 +6,7 @@
  ******************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/psargs.c b/drivers/acpi/acpica/psargs.c
index 92565131cdda..f51308cdbc65 100644
--- a/drivers/acpi/acpica/psargs.c
+++ b/drivers/acpi/acpica/psargs.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/psloop.c b/drivers/acpi/acpica/psloop.c
index 4261c5fe4718..63c455447481 100644
--- a/drivers/acpi/acpica/psloop.c
+++ b/drivers/acpi/acpica/psloop.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/psobject.c b/drivers/acpi/acpica/psobject.c
index 2f461e4dddff..12c4028002b1 100644
--- a/drivers/acpi/acpica/psobject.c
+++ b/drivers/acpi/acpica/psobject.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/psopcode.c b/drivers/acpi/acpica/psopcode.c
index 0fcee880d25c..1b659e59710a 100644
--- a/drivers/acpi/acpica/psopcode.c
+++ b/drivers/acpi/acpica/psopcode.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/psopinfo.c b/drivers/acpi/acpica/psopinfo.c
index d870e6293f7f..9ba5301e5751 100644
--- a/drivers/acpi/acpica/psopinfo.c
+++ b/drivers/acpi/acpica/psopinfo.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/psparse.c b/drivers/acpi/acpica/psparse.c
index 2494caf47755..abc4c48b2edd 100644
--- a/drivers/acpi/acpica/psparse.c
+++ b/drivers/acpi/acpica/psparse.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/psscope.c b/drivers/acpi/acpica/psscope.c
index 608dc20dc173..6a4b6fb39f32 100644
--- a/drivers/acpi/acpica/psscope.c
+++ b/drivers/acpi/acpica/psscope.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/pstree.c b/drivers/acpi/acpica/pstree.c
index fdb2e71f3046..c1934bf04f0a 100644
--- a/drivers/acpi/acpica/pstree.c
+++ b/drivers/acpi/acpica/pstree.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/psutils.c b/drivers/acpi/acpica/psutils.c
index 2bbf670b34f9..91fa73a6e55e 100644
--- a/drivers/acpi/acpica/psutils.c
+++ b/drivers/acpi/acpica/psutils.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/pswalk.c b/drivers/acpi/acpica/pswalk.c
index ab96cf47896d..abd65624754f 100644
--- a/drivers/acpi/acpica/pswalk.c
+++ b/drivers/acpi/acpica/pswalk.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/psxface.c b/drivers/acpi/acpica/psxface.c
index 963e16225797..f68254268965 100644
--- a/drivers/acpi/acpica/psxface.c
+++ b/drivers/acpi/acpica/psxface.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/rsaddr.c b/drivers/acpi/acpica/rsaddr.c
index 856ff075b6ab..f3a9276ac665 100644
--- a/drivers/acpi/acpica/rsaddr.c
+++ b/drivers/acpi/acpica/rsaddr.c
@@ -5,7 +5,7 @@
  ******************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/rscalc.c b/drivers/acpi/acpica/rscalc.c
index da178b4d0521..7816d4eef04e 100644
--- a/drivers/acpi/acpica/rscalc.c
+++ b/drivers/acpi/acpica/rscalc.c
@@ -5,7 +5,7 @@
  ******************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/rscreate.c b/drivers/acpi/acpica/rscreate.c
index 55e0908f1b35..f8b55b426c9d 100644
--- a/drivers/acpi/acpica/rscreate.c
+++ b/drivers/acpi/acpica/rscreate.c
@@ -5,7 +5,7 @@
  ******************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/rsdump.c b/drivers/acpi/acpica/rsdump.c
index 6e8f9bd08fc1..cab51445189d 100644
--- a/drivers/acpi/acpica/rsdump.c
+++ b/drivers/acpi/acpica/rsdump.c
@@ -5,7 +5,7 @@
  ******************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/rsdumpinfo.c b/drivers/acpi/acpica/rsdumpinfo.c
index 63a68c96a8ac..46192bd53653 100644
--- a/drivers/acpi/acpica/rsdumpinfo.c
+++ b/drivers/acpi/acpica/rsdumpinfo.c
@@ -5,7 +5,7 @@
  ******************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/rsinfo.c b/drivers/acpi/acpica/rsinfo.c
index a9fa5158200b..41fed78e0de6 100644
--- a/drivers/acpi/acpica/rsinfo.c
+++ b/drivers/acpi/acpica/rsinfo.c
@@ -5,7 +5,7 @@
  ******************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/rsio.c b/drivers/acpi/acpica/rsio.c
index f6a081057a22..ca183755a6f9 100644
--- a/drivers/acpi/acpica/rsio.c
+++ b/drivers/acpi/acpica/rsio.c
@@ -5,7 +5,7 @@
  ******************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/rsirq.c b/drivers/acpi/acpica/rsirq.c
index 9c1d74a8a678..364decc1028a 100644
--- a/drivers/acpi/acpica/rsirq.c
+++ b/drivers/acpi/acpica/rsirq.c
@@ -5,7 +5,7 @@
  ******************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/rslist.c b/drivers/acpi/acpica/rslist.c
index 83e615834a1c..ee2e206fc6c8 100644
--- a/drivers/acpi/acpica/rslist.c
+++ b/drivers/acpi/acpica/rslist.c
@@ -5,7 +5,7 @@
  ******************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/rsmemory.c b/drivers/acpi/acpica/rsmemory.c
index d446103a61cb..ebc773a1b350 100644
--- a/drivers/acpi/acpica/rsmemory.c
+++ b/drivers/acpi/acpica/rsmemory.c
@@ -5,7 +5,7 @@
  ******************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/rsmisc.c b/drivers/acpi/acpica/rsmisc.c
index 7b094ebff1db..d5bf05a96096 100644
--- a/drivers/acpi/acpica/rsmisc.c
+++ b/drivers/acpi/acpica/rsmisc.c
@@ -5,7 +5,7 @@
  ******************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/rsserial.c b/drivers/acpi/acpica/rsserial.c
index 197bab0248e6..fe49fc43e10f 100644
--- a/drivers/acpi/acpica/rsserial.c
+++ b/drivers/acpi/acpica/rsserial.c
@@ -5,7 +5,7 @@
  ******************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/rsutils.c b/drivers/acpi/acpica/rsutils.c
index 41b8103911fc..a44953c6f75d 100644
--- a/drivers/acpi/acpica/rsutils.c
+++ b/drivers/acpi/acpica/rsutils.c
@@ -5,7 +5,7 @@
  ******************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/rsxface.c b/drivers/acpi/acpica/rsxface.c
index a4086aabe865..15d6eaef0e28 100644
--- a/drivers/acpi/acpica/rsxface.c
+++ b/drivers/acpi/acpica/rsxface.c
@@ -5,7 +5,7 @@
  ******************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/tbfadt.c b/drivers/acpi/acpica/tbfadt.c
index 882285bed2c2..74181bf181ec 100644
--- a/drivers/acpi/acpica/tbfadt.c
+++ b/drivers/acpi/acpica/tbfadt.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/tbfind.c b/drivers/acpi/acpica/tbfind.c
index 77d1db29a725..e4f4f02d49e7 100644
--- a/drivers/acpi/acpica/tbfind.c
+++ b/drivers/acpi/acpica/tbfind.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/tbinstal.c b/drivers/acpi/acpica/tbinstal.c
index f540ae462925..e57cd38004e3 100644
--- a/drivers/acpi/acpica/tbinstal.c
+++ b/drivers/acpi/acpica/tbinstal.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/tbutils.c b/drivers/acpi/acpica/tbutils.c
index e3cc315d7744..ce3d5db39a9c 100644
--- a/drivers/acpi/acpica/tbutils.c
+++ b/drivers/acpi/acpica/tbutils.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/tbxface.c b/drivers/acpi/acpica/tbxface.c
index 2115f2242a29..b35a5e6d653a 100644
--- a/drivers/acpi/acpica/tbxface.c
+++ b/drivers/acpi/acpica/tbxface.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/tbxfload.c b/drivers/acpi/acpica/tbxfload.c
index 7feaafd94ff8..67e046ec8f0a 100644
--- a/drivers/acpi/acpica/tbxfload.c
+++ b/drivers/acpi/acpica/tbxfload.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/tbxfroot.c b/drivers/acpi/acpica/tbxfroot.c
index 28f330230f99..7c2ecfb7c2c3 100644
--- a/drivers/acpi/acpica/tbxfroot.c
+++ b/drivers/acpi/acpica/tbxfroot.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/utaddress.c b/drivers/acpi/acpica/utaddress.c
index b86ef850097e..698b9d385516 100644
--- a/drivers/acpi/acpica/utaddress.c
+++ b/drivers/acpi/acpica/utaddress.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/utalloc.c b/drivers/acpi/acpica/utalloc.c
index ed29d474095e..e0ffb580f4b0 100644
--- a/drivers/acpi/acpica/utalloc.c
+++ b/drivers/acpi/acpica/utalloc.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/utcache.c b/drivers/acpi/acpica/utcache.c
index e1d40ed26390..e0e8579deaac 100644
--- a/drivers/acpi/acpica/utcache.c
+++ b/drivers/acpi/acpica/utcache.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/utcopy.c b/drivers/acpi/acpica/utcopy.c
index 99549eeac0c6..e4c9291fc0a3 100644
--- a/drivers/acpi/acpica/utcopy.c
+++ b/drivers/acpi/acpica/utcopy.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/utdebug.c b/drivers/acpi/acpica/utdebug.c
index 47857c41906c..c57d9cc07ba9 100644
--- a/drivers/acpi/acpica/utdebug.c
+++ b/drivers/acpi/acpica/utdebug.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/utdecode.c b/drivers/acpi/acpica/utdecode.c
index 60a158472d82..11e2e02e1618 100644
--- a/drivers/acpi/acpica/utdecode.c
+++ b/drivers/acpi/acpica/utdecode.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/utdelete.c b/drivers/acpi/acpica/utdelete.c
index c8bf44f522dd..2541de420249 100644
--- a/drivers/acpi/acpica/utdelete.c
+++ b/drivers/acpi/acpica/utdelete.c
@@ -5,7 +5,7 @@
  ******************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/uteval.c b/drivers/acpi/acpica/uteval.c
index 45cddb8b1101..c3f3a7e7bdc7 100644
--- a/drivers/acpi/acpica/uteval.c
+++ b/drivers/acpi/acpica/uteval.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/utexcep.c b/drivers/acpi/acpica/utexcep.c
index 23b98945f6b7..a0ab7c02e87c 100644
--- a/drivers/acpi/acpica/utexcep.c
+++ b/drivers/acpi/acpica/utexcep.c
@@ -5,7 +5,7 @@
  ******************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/utglobal.c b/drivers/acpi/acpica/utglobal.c
index 7b4dd21009e6..ffecf4b4f0dd 100644
--- a/drivers/acpi/acpica/utglobal.c
+++ b/drivers/acpi/acpica/utglobal.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/utids.c b/drivers/acpi/acpica/utids.c
index 774c3aefbf5d..43a170a74a61 100644
--- a/drivers/acpi/acpica/utids.c
+++ b/drivers/acpi/acpica/utids.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/utinit.c b/drivers/acpi/acpica/utinit.c
index 246798e4c938..c5d1ac44c07d 100644
--- a/drivers/acpi/acpica/utinit.c
+++ b/drivers/acpi/acpica/utinit.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/utlock.c b/drivers/acpi/acpica/utlock.c
index 8d1a7499e401..5c26ad420344 100644
--- a/drivers/acpi/acpica/utlock.c
+++ b/drivers/acpi/acpica/utlock.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/utmath.c b/drivers/acpi/acpica/utmath.c
index 49563674833a..909fe66e1934 100644
--- a/drivers/acpi/acpica/utmath.c
+++ b/drivers/acpi/acpica/utmath.c
@@ -5,7 +5,7 @@
  ******************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/utmisc.c b/drivers/acpi/acpica/utmisc.c
index 7ebf4e49266a..785fdd07ae56 100644
--- a/drivers/acpi/acpica/utmisc.c
+++ b/drivers/acpi/acpica/utmisc.c
@@ -5,7 +5,7 @@
  ******************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/utmutex.c b/drivers/acpi/acpica/utmutex.c
index 5ccf57c0d87e..22feb99b8e35 100644
--- a/drivers/acpi/acpica/utmutex.c
+++ b/drivers/acpi/acpica/utmutex.c
@@ -5,7 +5,7 @@
  ******************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/utobject.c b/drivers/acpi/acpica/utobject.c
index 822600bf3876..1099f5c069f8 100644
--- a/drivers/acpi/acpica/utobject.c
+++ b/drivers/acpi/acpica/utobject.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/utosi.c b/drivers/acpi/acpica/utosi.c
index 676285d6116d..36a7d361d7cb 100644
--- a/drivers/acpi/acpica/utosi.c
+++ b/drivers/acpi/acpica/utosi.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/utownerid.c b/drivers/acpi/acpica/utownerid.c
index 6b42e6330164..835340b26d37 100644
--- a/drivers/acpi/acpica/utownerid.c
+++ b/drivers/acpi/acpica/utownerid.c
@@ -5,7 +5,7 @@
  ******************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/utresrc.c b/drivers/acpi/acpica/utresrc.c
index 8f8eab98ed79..cb7fa491decf 100644
--- a/drivers/acpi/acpica/utresrc.c
+++ b/drivers/acpi/acpica/utresrc.c
@@ -5,7 +5,7 @@
  ******************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/utstate.c b/drivers/acpi/acpica/utstate.c
index 26a0c23c3f4b..a6b729d4c1dc 100644
--- a/drivers/acpi/acpica/utstate.c
+++ b/drivers/acpi/acpica/utstate.c
@@ -5,7 +5,7 @@
  ******************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/utstring.c b/drivers/acpi/acpica/utstring.c
index 41702658c45b..b3e36a81aa4d 100644
--- a/drivers/acpi/acpica/utstring.c
+++ b/drivers/acpi/acpica/utstring.c
@@ -5,7 +5,7 @@
  ******************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/uttrack.c b/drivers/acpi/acpica/uttrack.c
index 866f96e14ade..62774c7b76a8 100644
--- a/drivers/acpi/acpica/uttrack.c
+++ b/drivers/acpi/acpica/uttrack.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/utxface.c b/drivers/acpi/acpica/utxface.c
index cb85a7b313da..48efb446258c 100644
--- a/drivers/acpi/acpica/utxface.c
+++ b/drivers/acpi/acpica/utxface.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/utxferror.c b/drivers/acpi/acpica/utxferror.c
index a247a224bee5..976b6c734fce 100644
--- a/drivers/acpi/acpica/utxferror.c
+++ b/drivers/acpi/acpica/utxferror.c
@@ -5,7 +5,7 @@
  ******************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/utxfinit.c b/drivers/acpi/acpica/utxfinit.c
index 14f523627a5e..41ebaaf8bb1a 100644
--- a/drivers/acpi/acpica/utxfinit.c
+++ b/drivers/acpi/acpica/utxfinit.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/drivers/acpi/acpica/utxfmutex.c b/drivers/acpi/acpica/utxfmutex.c
index 0a40a851b354..312299721ba1 100644
--- a/drivers/acpi/acpica/utxfmutex.c
+++ b/drivers/acpi/acpica/utxfmutex.c
@@ -5,7 +5,7 @@
  ******************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
-- 
cgit v1.2.3


From 48ffb94f9e6f9b11c26884f26199e3d51bb22e54 Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Fri, 25 Jan 2013 05:41:00 +0000
Subject: ACPICA: AcpiGetSleepTypeData: Allow \_Sx to return either 1 or 2
 integers

Although the ACPI spec defines the \_Sx objects to return
a package containing one integer, most BIOS code returns two
integers and the previous code reflects that. However, we also
need to support BIOS code that actually implements to the ACPI
spec, and this change implements this.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/hwxface.c | 125 +++++++++++++++++++++++++-----------------
 1 file changed, 74 insertions(+), 51 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/hwxface.c b/drivers/acpi/acpica/hwxface.c
index a4bac0881374..04c2e16f2c0a 100644
--- a/drivers/acpi/acpica/hwxface.c
+++ b/drivers/acpi/acpica/hwxface.c
@@ -440,17 +440,41 @@ ACPI_EXPORT_SYMBOL(acpi_write_bit_register)
  *              *sleep_type_a        - Where SLP_TYPa is returned
  *              *sleep_type_b        - Where SLP_TYPb is returned
  *
- * RETURN:      status - ACPI status
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Obtain the SLP_TYPa and SLP_TYPb values for the requested
+ *              sleep state via the appropriate \_Sx object.
+ *
+ *  The sleep state package returned from the corresponding \_Sx_ object
+ *  must contain at least one integer.
+ *
+ *  March 2005:
+ *  Added support for a package that contains two integers. This
+ *  goes against the ACPI specification which defines this object as a
+ *  package with one encoded DWORD integer. However, existing practice
+ *  by many BIOS vendors is to return a package with 2 or more integer
+ *  elements, at least one per sleep type (A/B).
  *
- * DESCRIPTION: Obtain the SLP_TYPa and SLP_TYPb values for the requested sleep
- *              state.
+ *  January 2013:
+ *  Therefore, we must be prepared to accept a package with either a
+ *  single integer or multiple integers.
+ *
+ *  The single integer DWORD format is as follows:
+ *      BYTE 0 - Value for the PM1A SLP_TYP register
+ *      BYTE 1 - Value for the PM1B SLP_TYP register
+ *      BYTE 2-3 - Reserved
+ *
+ *  The dual integer format is as follows:
+ *      Integer 0 - Value for the PM1A SLP_TYP register
+ *      Integer 1 - Value for the PM1A SLP_TYP register
  *
  ******************************************************************************/
 acpi_status
 acpi_get_sleep_type_data(u8 sleep_state, u8 *sleep_type_a, u8 *sleep_type_b)
 {
-	acpi_status status = AE_OK;
+	acpi_status status;
 	struct acpi_evaluate_info *info;
+	union acpi_operand_object **elements;
 
 	ACPI_FUNCTION_TRACE(acpi_get_sleep_type_data);
 
@@ -467,18 +491,14 @@ acpi_get_sleep_type_data(u8 sleep_state, u8 *sleep_type_a, u8 *sleep_type_b)
 		return_ACPI_STATUS(AE_NO_MEMORY);
 	}
 
+	/*
+	 * Evaluate the \_Sx namespace object containing the register values
+	 * for this state
+	 */
 	info->pathname =
 	    ACPI_CAST_PTR(char, acpi_gbl_sleep_state_names[sleep_state]);
-
-	/* Evaluate the namespace object containing the values for this state */
-
 	status = acpi_ns_evaluate(info);
 	if (ACPI_FAILURE(status)) {
-		ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
-				  "%s while evaluating SleepState [%s]\n",
-				  acpi_format_exception(status),
-				  info->pathname));
-
 		goto cleanup;
 	}
 
@@ -487,64 +507,67 @@ acpi_get_sleep_type_data(u8 sleep_state, u8 *sleep_type_a, u8 *sleep_type_b)
 	if (!info->return_object) {
 		ACPI_ERROR((AE_INFO, "No Sleep State object returned from [%s]",
 			    info->pathname));
-		status = AE_NOT_EXIST;
+		status = AE_AML_NO_RETURN_VALUE;
+		goto cleanup;
 	}
 
-	/* It must be of type Package */
+	/* Return object must be of type Package */
 
-	else if (info->return_object->common.type != ACPI_TYPE_PACKAGE) {
+	if (info->return_object->common.type != ACPI_TYPE_PACKAGE) {
 		ACPI_ERROR((AE_INFO,
 			    "Sleep State return object is not a Package"));
 		status = AE_AML_OPERAND_TYPE;
+		goto cleanup1;
 	}
 
 	/*
-	 * The package must have at least two elements. NOTE (March 2005): This
-	 * goes against the current ACPI spec which defines this object as a
-	 * package with one encoded DWORD element. However, existing practice
-	 * by BIOS vendors seems to be to have 2 or more elements, at least
-	 * one per sleep type (A/B).
+	 * Any warnings about the package length or the object types have
+	 * already been issued by the predefined name module -- there is no
+	 * need to repeat them here.
 	 */
-	else if (info->return_object->package.count < 2) {
-		ACPI_ERROR((AE_INFO,
-			    "Sleep State return package does not have at least two elements"));
-		status = AE_AML_NO_OPERAND;
-	}
+	elements = info->return_object->package.elements;
+	switch (info->return_object->package.count) {
+	case 0:
+		status = AE_AML_PACKAGE_LIMIT;
+		break;
+
+	case 1:
+		if (elements[0]->common.type != ACPI_TYPE_INTEGER) {
+			status = AE_AML_OPERAND_TYPE;
+			break;
+		}
 
-	/* The first two elements must both be of type Integer */
+		/* A valid _Sx_ package with one integer */
 
-	else if (((info->return_object->package.elements[0])->common.type
-		  != ACPI_TYPE_INTEGER) ||
-		 ((info->return_object->package.elements[1])->common.type
-		  != ACPI_TYPE_INTEGER)) {
-		ACPI_ERROR((AE_INFO,
-			    "Sleep State return package elements are not both Integers "
-			    "(%s, %s)",
-			    acpi_ut_get_object_type_name(info->return_object->
-							 package.elements[0]),
-			    acpi_ut_get_object_type_name(info->return_object->
-							 package.elements[1])));
-		status = AE_AML_OPERAND_TYPE;
-	} else {
-		/* Valid _Sx_ package size, type, and value */
+		*sleep_type_a = (u8)elements[0]->integer.value;
+		*sleep_type_b = (u8)(elements[0]->integer.value >> 8);
+		break;
 
-		*sleep_type_a = (u8)
-		    (info->return_object->package.elements[0])->integer.value;
-		*sleep_type_b = (u8)
-		    (info->return_object->package.elements[1])->integer.value;
-	}
+	case 2:
+	default:
+		if ((elements[0]->common.type != ACPI_TYPE_INTEGER) ||
+		    (elements[1]->common.type != ACPI_TYPE_INTEGER)) {
+			status = AE_AML_OPERAND_TYPE;
+			break;
+		}
 
-	if (ACPI_FAILURE(status)) {
-		ACPI_EXCEPTION((AE_INFO, status,
-				"While evaluating SleepState [%s], bad Sleep object %p type %s",
-				info->pathname, info->return_object,
-				acpi_ut_get_object_type_name(info->
-							     return_object)));
+		/* A valid _Sx_ package with two integers */
+
+		*sleep_type_a = (u8)elements[0]->integer.value;
+		*sleep_type_b = (u8)elements[1]->integer.value;
+		break;
 	}
 
+      cleanup1:
 	acpi_ut_remove_reference(info->return_object);
 
       cleanup:
+	if (ACPI_FAILURE(status)) {
+		ACPI_EXCEPTION((AE_INFO, status,
+				"While evaluating Sleep State [%s]",
+				info->pathname));
+	}
+
 	ACPI_FREE(info);
 	return_ACPI_STATUS(status);
 }
-- 
cgit v1.2.3


From d9652b4e8a26384be959770839773a9dee7d0c2c Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Fri, 25 Jan 2013 05:41:08 +0000
Subject: ACPICA: iASL/Disassembler: Add option to ignore NOOP
 opcodes/operators

Implemented for both the compiler and the disassembler.  Often,
the NOOP opcode is used as padding for packages that are changed
dynamically by the BIOS. When disassembled, these NOOPs will
cause syntax errors. This option causes the disassembler to ignore
the NOOP opcode, and it also causes the compiler to ignore NOOP
statements as well.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Tested-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/acglobal.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h
index 7f6a9a984c2c..ecb49927b817 100644
--- a/drivers/acpi/acpica/acglobal.h
+++ b/drivers/acpi/acpica/acglobal.h
@@ -405,7 +405,7 @@ ACPI_EXTERN u32 acpi_gbl_trace_dbg_layer;
 
 /*****************************************************************************
  *
- * Debugger globals
+ * Debugger and Disassembler globals
  *
  ****************************************************************************/
 
@@ -413,6 +413,8 @@ ACPI_EXTERN u8 acpi_gbl_db_output_flags;
 
 #ifdef ACPI_DISASSEMBLER
 
+u8 ACPI_INIT_GLOBAL(acpi_gbl_ignore_noop_operator, FALSE);
+
 ACPI_EXTERN u8 acpi_gbl_db_opt_disasm;
 ACPI_EXTERN u8 acpi_gbl_db_opt_verbose;
 ACPI_EXTERN struct acpi_external_list *acpi_gbl_external_list;
-- 
cgit v1.2.3


From 5e30a96e47f99c63c04a0e7949d896cba80dd594 Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Fri, 25 Jan 2013 05:41:16 +0000
Subject: ACPICA: Remove some extraneous newlines in ACPI_ERROR type calls

These macros/functions automatically insert a newline, so the
format string should not contain a newline at the end. (This allows
these functions to add information to the end of the output line.)

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/dsobject.c | 2 +-
 drivers/acpi/acpica/dswload2.c | 2 +-
 drivers/acpi/acpica/hwgpe.c    | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/dsobject.c b/drivers/acpi/acpica/dsobject.c
index 2e6288dffd58..e20e9f84eee8 100644
--- a/drivers/acpi/acpica/dsobject.c
+++ b/drivers/acpi/acpica/dsobject.c
@@ -525,7 +525,7 @@ acpi_ds_build_internal_package_obj(struct acpi_walk_state *walk_state,
 		}
 
 		ACPI_INFO((AE_INFO,
-			   "Actual Package length (%u) is larger than NumElements field (%u), truncated\n",
+			   "Actual Package length (%u) is larger than NumElements field (%u), truncated",
 			   i, element_count));
 	} else if (i < element_count) {
 		/*
diff --git a/drivers/acpi/acpica/dswload2.c b/drivers/acpi/acpica/dswload2.c
index 620a0230b726..4407ff2377d5 100644
--- a/drivers/acpi/acpica/dswload2.c
+++ b/drivers/acpi/acpica/dswload2.c
@@ -222,7 +222,7 @@ acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state,
 			 */
 			ACPI_WARNING((AE_INFO,
 				      "Type override - [%4.4s] had invalid type (%s) "
-				      "for Scope operator, changed to type ANY\n",
+				      "for Scope operator, changed to type ANY",
 				      acpi_ut_get_node_name(node),
 				      acpi_ut_get_type_name(node->type)));
 
diff --git a/drivers/acpi/acpica/hwgpe.c b/drivers/acpi/acpica/hwgpe.c
index d84fd8399226..20d02e93c990 100644
--- a/drivers/acpi/acpica/hwgpe.c
+++ b/drivers/acpi/acpica/hwgpe.c
@@ -135,7 +135,7 @@ acpi_hw_low_set_gpe(struct acpi_gpe_event_info *gpe_event_info, u32 action)
 		break;
 
 	default:
-		ACPI_ERROR((AE_INFO, "Invalid GPE Action, %u\n", action));
+		ACPI_ERROR((AE_INFO, "Invalid GPE Action, %u", action));
 		return (AE_BAD_PARAMETER);
 	}
 
-- 
cgit v1.2.3


From 378bb8b147ef9bd3c916ff5ea82578af033d09e4 Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Fri, 25 Jan 2013 05:41:22 +0000
Subject: ACPICA: Update predefined info table for _MLS method

The second object for each sub-package of the _MLS method is
defined to be a unicode Buffer object. This fixes the predefined
table where this object was incorrectly defined as a String.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/acpredef.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpica/acpredef.h b/drivers/acpi/acpica/acpredef.h
index c11b66d5bde2..752cc40cdc1e 100644
--- a/drivers/acpi/acpica/acpredef.h
+++ b/drivers/acpi/acpica/acpredef.h
@@ -345,8 +345,8 @@ static const union acpi_predefined_info predefined_names[] = {
 	{{"_MBM", 0, ACPI_RTYPE_PACKAGE}},	/* Fixed-length (8 Int) */
 	{{{ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 8, 0}, 0, 0}},
 
-	{{"_MLS", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Pkgs) each (2 Str) */
-			  {{{ACPI_PTYPE2, ACPI_RTYPE_STRING, 2,0}, 0,0}},
+	{{"_MLS", 0, ACPI_RTYPE_PACKAGE}},	/* Variable-length (Pkgs) each (1 Str/1 Buf) */
+	{{{ACPI_PTYPE2, ACPI_RTYPE_STRING, 1, ACPI_RTYPE_BUFFER}, 1, 0}},
 
 	{{"_MSG", 1, 0}},
 	{{"_MSM", 4, ACPI_RTYPE_INTEGER}},
-- 
cgit v1.2.3


From 18a387099b3e3fd901cc706f708b163aa45347b6 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Fri, 25 Jan 2013 21:51:32 +0100
Subject: ACPI / PM: Expose lists of device power resources to user space

Since ACPI power resources are going to be used more extensively on
new hardware platforms, it is necessary to allow user space (powertop
in particular) to look at the lists of power resources corresponding
to different power states of devices for diagnostics and control
purposes.

For this reason, for each power state of an ACPI device node using
power resources create a special attribute group under the device
node's directory in sysfs containing links to sysfs directories
representing the power resources in that list.  The names of the
new attribute groups are "power_resources_<state>", where <state>
is the state name i.e. "D0", "D1", "D2", or "D3hot".

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/acpi/power.c | 104 ++++++++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 91 insertions(+), 13 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index 946720a4db57..9466f56b938f 100644
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -41,6 +41,7 @@
 #include <linux/types.h>
 #include <linux/slab.h>
 #include <linux/pm_runtime.h>
+#include <linux/sysfs.h>
 #include <acpi/acpi_bus.h>
 #include <acpi/acpi_drivers.h>
 #include "sleep.h"
@@ -417,24 +418,101 @@ static void acpi_power_remove_dependent(struct acpi_power_resource *resource,
 	}
 }
 
-void acpi_power_add_remove_device(struct acpi_device *adev, bool add)
+static struct attribute *attrs[] = {
+	NULL,
+};
+
+static struct attribute_group attr_groups[] = {
+	[ACPI_STATE_D0] = {
+		.name = "power_resources_D0",
+		.attrs = attrs,
+	},
+	[ACPI_STATE_D1] = {
+		.name = "power_resources_D1",
+		.attrs = attrs,
+	},
+	[ACPI_STATE_D2] = {
+		.name = "power_resources_D2",
+		.attrs = attrs,
+	},
+	[ACPI_STATE_D3_HOT] = {
+		.name = "power_resources_D3hot",
+		.attrs = attrs,
+	},
+};
+
+static void acpi_power_hide_list(struct acpi_device *adev, int state)
+{
+	struct acpi_device_power_state *ps = &adev->power.states[state];
+	struct acpi_power_resource_entry *entry;
+
+	if (list_empty(&ps->resources))
+		return;
+
+	list_for_each_entry_reverse(entry, &ps->resources, node) {
+		struct acpi_device *res_dev = &entry->resource->device;
+
+		sysfs_remove_link_from_group(&adev->dev.kobj,
+					     attr_groups[state].name,
+					     dev_name(&res_dev->dev));
+	}
+	sysfs_remove_group(&adev->dev.kobj, &attr_groups[state]);
+}
+
+static void acpi_power_expose_list(struct acpi_device *adev, int state)
 {
-	if (adev->power.flags.power_resources) {
-		struct acpi_device_power_state *ps;
-		struct acpi_power_resource_entry *entry;
-
-		ps = &adev->power.states[ACPI_STATE_D0];
-		list_for_each_entry(entry, &ps->resources, node) {
-			struct acpi_power_resource *resource = entry->resource;
-
-			if (add)
-				acpi_power_add_dependent(resource, adev);
-			else
-				acpi_power_remove_dependent(resource, adev);
+	struct acpi_device_power_state *ps = &adev->power.states[state];
+	struct acpi_power_resource_entry *entry;
+	int ret;
+
+	if (list_empty(&ps->resources))
+		return;
+
+	ret = sysfs_create_group(&adev->dev.kobj, &attr_groups[state]);
+	if (ret)
+		return;
+
+	list_for_each_entry(entry, &ps->resources, node) {
+		struct acpi_device *res_dev = &entry->resource->device;
+
+		ret = sysfs_add_link_to_group(&adev->dev.kobj,
+					      attr_groups[state].name,
+					      &res_dev->dev.kobj,
+					      dev_name(&res_dev->dev));
+		if (ret) {
+			acpi_power_hide_list(adev, state);
+			break;
 		}
 	}
 }
 
+void acpi_power_add_remove_device(struct acpi_device *adev, bool add)
+{
+	struct acpi_device_power_state *ps;
+	struct acpi_power_resource_entry *entry;
+	int state;
+
+	if (!adev->power.flags.power_resources)
+		return;
+
+	ps = &adev->power.states[ACPI_STATE_D0];
+	list_for_each_entry(entry, &ps->resources, node) {
+		struct acpi_power_resource *resource = entry->resource;
+
+		if (add)
+			acpi_power_add_dependent(resource, adev);
+		else
+			acpi_power_remove_dependent(resource, adev);
+	}
+
+	for (state = ACPI_STATE_D0; state <= ACPI_STATE_D3_HOT; state++) {
+		if (add)
+			acpi_power_expose_list(adev, state);
+		else
+			acpi_power_hide_list(adev, state);
+	}
+}
+
 int acpi_power_min_system_level(struct list_head *list)
 {
 	struct acpi_power_resource_entry *entry;
-- 
cgit v1.2.3


From 660b1113e0f33a476952cb2cbcb5c9831e7ff4cd Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Fri, 25 Jan 2013 21:51:57 +0100
Subject: ACPI / PM: Fix consistency check for power resources during resume

During system resume we check if there are power resources that have
been turned off by the BIOS, but our reference counters for them
are nonzero (they need to be turned on then).  It turns out, however,
that we also need to check the opposite, i.e. if there are power
resources that have been turned on by the BIOS, but our reference
counters for them are zero (which means that no devices are going
to need them any time soon) and we should turn them off.

Make the power resources resume code do the additional check and
turn off the unused power resources as appropriate.

This change has been tested on HP nx6325.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/power.c | 37 ++++++++++++++++++++++++++-----------
 1 file changed, 26 insertions(+), 11 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index 9466f56b938f..b820528a5fa3 100644
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -299,9 +299,22 @@ static int acpi_power_on(struct acpi_power_resource *resource)
 	return result;
 }
 
+static int __acpi_power_off(struct acpi_power_resource *resource)
+{
+	acpi_status status;
+
+	status = acpi_evaluate_object(resource->device.handle, "_OFF",
+				      NULL, NULL);
+	if (ACPI_FAILURE(status))
+		return -ENODEV;
+
+	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Power resource [%s] turned off\n",
+			  resource->name));
+	return 0;
+}
+
 static int acpi_power_off(struct acpi_power_resource *resource)
 {
-	acpi_status status = AE_OK;
 	int result = 0;
 
 	mutex_lock(&resource->resource_lock);
@@ -317,17 +330,12 @@ static int acpi_power_off(struct acpi_power_resource *resource)
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 				  "Power resource [%s] still in use\n",
 				  resource->name));
-		goto unlock;
+	} else {
+		result = __acpi_power_off(resource);
+		if (result)
+			resource->ref_count++;
 	}
 
-	status = acpi_evaluate_object(resource->device.handle, "_OFF", NULL, NULL);
-	if (ACPI_FAILURE(status))
-		result = -ENODEV;
-	else
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-				  "Power resource [%s] turned off\n",
-				  resource->name));
-
  unlock:
 	mutex_unlock(&resource->resource_lock);
 
@@ -851,10 +859,17 @@ void acpi_resume_power_resources(void)
 		mutex_lock(&resource->resource_lock);
 
 		result = acpi_power_get_state(resource->device.handle, &state);
-		if (!result && state == ACPI_POWER_RESOURCE_STATE_OFF
+		if (result)
+			continue;
+
+		if (state == ACPI_POWER_RESOURCE_STATE_OFF
 		    && resource->ref_count) {
 			dev_info(&resource->device.dev, "Turning ON\n");
 			__acpi_power_on(resource);
+		} else if (state == ACPI_POWER_RESOURCE_STATE_ON
+		    && !resource->ref_count) {
+			dev_info(&resource->device.dev, "Turning OFF\n");
+			__acpi_power_off(resource);
 		}
 
 		mutex_unlock(&resource->resource_lock);
-- 
cgit v1.2.3


From bfee26dba0f373ebe4e6f0b293d078b02f9f7f69 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Sat, 26 Jan 2013 00:27:44 +0100
Subject: ACPI / scan: Make it clear that acpi_bus_trim() cannot fail

Since acpi_bus_trim() cannot fail, change its definition to a void
function, so that its callers don't check the return value in vain
and update the callers.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Acked-by: Toshi Kani <toshi.kani@hp.com>
---
 drivers/acpi/dock.c |  8 ++------
 drivers/acpi/scan.c | 12 +++---------
 2 files changed, 5 insertions(+), 15 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c
index 420d24fc9388..78648f811049 100644
--- a/drivers/acpi/dock.c
+++ b/drivers/acpi/dock.c
@@ -336,13 +336,9 @@ static struct acpi_device * dock_create_acpi_device(acpi_handle handle)
 static void dock_remove_acpi_device(acpi_handle handle)
 {
 	struct acpi_device *device;
-	int ret;
 
-	if (!acpi_bus_get_device(handle, &device)) {
-		ret = acpi_bus_trim(device);
-		if (ret)
-			pr_debug("error removing bus, %x\n", -ret);
-	}
+	if (!acpi_bus_get_device(handle, &device))
+		acpi_bus_trim(device);
 }
 
 /**
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 7c43bdc36abc..d37f290be44c 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -127,13 +127,8 @@ void acpi_bus_hot_remove_device(void *context)
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 		"Hot-removing device %s...\n", dev_name(&device->dev)));
 
-	if (acpi_bus_trim(device)) {
-		printk(KERN_ERR PREFIX
-				"Removing device failed\n");
-		goto err_out;
-	}
-
-	/* device has been freed */
+	acpi_bus_trim(device);
+	/* Device node has been released. */
 	device = NULL;
 
 	/* power off device */
@@ -1631,7 +1626,7 @@ static acpi_status acpi_bus_remove(acpi_handle handle, u32 lvl_not_used,
 	return AE_OK;
 }
 
-int acpi_bus_trim(struct acpi_device *start)
+void acpi_bus_trim(struct acpi_device *start)
 {
 	/*
 	 * Execute acpi_bus_device_detach() as a post-order callback to detach
@@ -1647,7 +1642,6 @@ int acpi_bus_trim(struct acpi_device *start)
 	acpi_walk_namespace(ACPI_TYPE_ANY, start->handle, ACPI_UINT32_MAX, NULL,
 			    acpi_bus_remove, NULL, NULL);
 	acpi_bus_remove(start->handle, 0, NULL, NULL);
-	return 0;
 }
 EXPORT_SYMBOL_GPL(acpi_bus_trim);
 
-- 
cgit v1.2.3


From 33f767d767e9a684e9cd60704d4c049a2014c8d5 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 10 Jan 2013 13:13:49 +0100
Subject: ACPI: Rework acpi_get_child() to be more efficient

Observe that acpi_get_child() doesn't need to use the helper
struct acpi_find_child structure and change it to work without it.
Also, using acpi_get_object_info() to get the output of _ADR for the
given device is overkill, because that function does much more than
just evaluating _ADR (let alone the additional memory allocation
done by it).

Moreover, acpi_get_child() doesn't need to loop any more once it has
found a matching handle, so make it stop in that case.  To prevent
the results from changing, make it use do_acpi_find_child() as
a post-order callback.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/glue.c | 35 +++++++++++++----------------------
 1 file changed, 13 insertions(+), 22 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c
index 35da18113216..e9e486f79b35 100644
--- a/drivers/acpi/glue.c
+++ b/drivers/acpi/glue.c
@@ -95,40 +95,31 @@ static int acpi_find_bridge_device(struct device *dev, acpi_handle * handle)
 	return ret;
 }
 
-/* Get device's handler per its address under its parent */
-struct acpi_find_child {
-	acpi_handle handle;
-	u64 address;
-};
-
-static acpi_status
-do_acpi_find_child(acpi_handle handle, u32 lvl, void *context, void **rv)
+static acpi_status do_acpi_find_child(acpi_handle handle, u32 lvl_not_used,
+				      void *addr_p, void **ret_p)
 {
+	unsigned long long addr;
 	acpi_status status;
-	struct acpi_device_info *info;
-	struct acpi_find_child *find = context;
-
-	status = acpi_get_object_info(handle, &info);
-	if (ACPI_SUCCESS(status)) {
-		if ((info->address == find->address)
-			&& (info->valid & ACPI_VALID_ADR))
-			find->handle = handle;
-		kfree(info);
+
+	status = acpi_evaluate_integer(handle, METHOD_NAME__ADR, NULL, &addr);
+	if (ACPI_SUCCESS(status) && addr == *((u64 *)addr_p)) {
+		*ret_p = handle;
+		return AE_CTRL_TERMINATE;
 	}
 	return AE_OK;
 }
 
 acpi_handle acpi_get_child(acpi_handle parent, u64 address)
 {
-	struct acpi_find_child find = { NULL, address };
+	void *ret = NULL;
 
 	if (!parent)
 		return NULL;
-	acpi_walk_namespace(ACPI_TYPE_DEVICE, parent,
-			    1, do_acpi_find_child, NULL, &find, NULL);
-	return find.handle;
-}
 
+	acpi_walk_namespace(ACPI_TYPE_DEVICE, parent, 1, NULL,
+			    do_acpi_find_child, &address, &ret);
+	return (acpi_handle)ret;
+}
 EXPORT_SYMBOL(acpi_get_child);
 
 static int acpi_bind_one(struct device *dev, acpi_handle handle)
-- 
cgit v1.2.3


From 208f6cc9e5f83c9e2fb3a997dde3d4f6f5971384 Mon Sep 17 00:00:00 2001
From: Davidlohr Bueso <davidlohr.bueso@hp.com>
Date: Wed, 9 Jan 2013 22:06:08 +0000
Subject: ACPI: SRAT: report non-volatile memory in debug

Just as with the other memory affinity flags, report
non-volatile memory with ACPI debug.

Signed-off-by: Davidlohr Bueso <davidlohr.bueso@hp.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/numa.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index cb31298ca684..2935d3a2bd7a 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -116,14 +116,16 @@ acpi_table_print_srat_entry(struct acpi_subtable_header *header)
 			struct acpi_srat_mem_affinity *p =
 			    (struct acpi_srat_mem_affinity *)header;
 			ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-					  "SRAT Memory (0x%lx length 0x%lx) in proximity domain %d %s%s\n",
+					  "SRAT Memory (0x%lx length 0x%lx) in proximity domain %d %s%s%s\n",
 					  (unsigned long)p->base_address,
 					  (unsigned long)p->length,
 					  p->proximity_domain,
 					  (p->flags & ACPI_SRAT_MEM_ENABLED)?
 					  "enabled" : "disabled",
 					  (p->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE)?
-					  " hot-pluggable" : ""));
+					  " hot-pluggable" : "",
+					  (p->flags & ACPI_SRAT_MEM_NON_VOLATILE)?
+					  " non-volatile" : ""));
 		}
 #endif				/* ACPI_DEBUG_OUTPUT */
 		break;
-- 
cgit v1.2.3


From bf6787ebb6c811ce41bc3f3f833a04d5f8978fa8 Mon Sep 17 00:00:00 2001
From: Colin Ian King <colin.king@canonical.com>
Date: Thu, 29 Nov 2012 11:53:13 +0000
Subject: ACPI video: remove unnecessary newline from error messages

ACPI_ERROR() already appends a newline, so there is no
need for the error messages to include one too.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/video.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index ac9a69cd45f5..b03bb26365ae 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -673,7 +673,7 @@ acpi_video_init_brightness(struct acpi_video_device *device)
 			br->levels[i] = br->levels[i - level_ac_battery];
 		count += level_ac_battery;
 	} else if (level_ac_battery > 2)
-		ACPI_ERROR((AE_INFO, "Too many duplicates in _BCL package\n"));
+		ACPI_ERROR((AE_INFO, "Too many duplicates in _BCL package"));
 
 	/* Check if the _BCL package is in a reversed order */
 	if (max_level == br->levels[2]) {
@@ -682,7 +682,7 @@ acpi_video_init_brightness(struct acpi_video_device *device)
 			acpi_video_cmp_level, NULL);
 	} else if (max_level != br->levels[count - 1])
 		ACPI_ERROR((AE_INFO,
-			    "Found unordered _BCL package\n"));
+			    "Found unordered _BCL package"));
 
 	br->count = count;
 	device->brightness = br;
-- 
cgit v1.2.3


From c628423777d9df5e48ea8c5695aacd105cf4f768 Mon Sep 17 00:00:00 2001
From: Colin Ian King <colin.king@canonical.com>
Date: Thu, 29 Nov 2012 11:53:14 +0000
Subject: ACPI sysfs: remove unnecessary newline from exception

ACPI_EXCEPTION() already appends a newline, so there is no
need for the invalid GPE message to include one too.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/sysfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c
index ea61ca9129cd..41c0504470db 100644
--- a/drivers/acpi/sysfs.c
+++ b/drivers/acpi/sysfs.c
@@ -498,7 +498,7 @@ static int get_status(u32 index, acpi_event_status *status,
 		result = acpi_get_gpe_device(index, handle);
 		if (result) {
 			ACPI_EXCEPTION((AE_INFO, AE_NOT_FOUND,
-					"Invalid GPE 0x%x\n", index));
+					"Invalid GPE 0x%x", index));
 			goto end;
 		}
 		result = acpi_get_gpe_status(*handle, index, status);
-- 
cgit v1.2.3


From 7e3cf246b532a640ff1176d0b988aa0a9338e36f Mon Sep 17 00:00:00 2001
From: Colin Ian King <colin.king@canonical.com>
Date: Thu, 29 Nov 2012 11:53:16 +0000
Subject: ACPI thermal: remove unnecessary newline from exception message

ACPI_EXCEPTION() already appends a newline, so there is no
need for the thermal trip point message to include one too.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/thermal.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 506fbd4b5733..f46c44048e44 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -288,7 +288,7 @@ do {	\
 	if (flags != ACPI_TRIPS_INIT)	\
 		ACPI_EXCEPTION((AE_INFO, AE_ERROR,	\
 		"ACPI thermal trip point %s changed\n"	\
-		"Please send acpidump to linux-acpi@vger.kernel.org\n", str)); \
+		"Please send acpidump to linux-acpi@vger.kernel.org", str)); \
 } while (0)
 
 static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag)
-- 
cgit v1.2.3


From ca4e713080dd7f23cd1cf5d3871e0b717ee9b254 Mon Sep 17 00:00:00 2001
From: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Date: Tue, 15 Jan 2013 23:57:16 +0100
Subject: ACPI / thermal: Use mode to enable/disable kernel thermal processing

As per documentation, "mode" sysfs interface should be able to
enable/disable thermal processing in the kernel, so that user space
is able to take more control.

Currently, ACPI thermal driver is not following this setting, so
modify it to match the interface documentation.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/thermal.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index f46c44048e44..dc047336cc37 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -531,6 +531,10 @@ static void acpi_thermal_check(void *data)
 {
 	struct acpi_thermal *tz = data;
 
+	if (!tz->tz_enabled) {
+		pr_warn("thermal zone is disabled \n");
+		return;
+	}
 	thermal_zone_device_update(tz->thermal_zone);
 }
 
-- 
cgit v1.2.3


From 5baa1be1cf4d118002503198bd3843e105868f65 Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Thu, 17 Jan 2013 14:24:05 +0100
Subject: ACPI: fix obsolete comment in custom_method.c

The comment describing the contents of the custom_method.c file is
obsolete, so update it.

[rjw: Subject and changelog]
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/custom_method.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/custom_method.c b/drivers/acpi/custom_method.c
index 5d42c2414ae5..6adfc706a1de 100644
--- a/drivers/acpi/custom_method.c
+++ b/drivers/acpi/custom_method.c
@@ -1,5 +1,5 @@
 /*
- * debugfs.c - ACPI debugfs interface to userspace.
+ * custom_method.c - debugfs interface for customizing ACPI control method
  */
 
 #include <linux/init.h>
-- 
cgit v1.2.3


From 51fac8388a0325a43f0ae67453ece2c373e2ec28 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 24 Jan 2013 00:24:48 +0100
Subject: ACPI: Remove useless type argument of driver .remove() operation

The second argument of ACPI driver .remove() operation is only used
by the ACPI processor driver and the value passed to that driver
through it is always available from the given struct acpi_device
object's removal_type field.  For this reason, the second ACPI driver
.remove() argument is in fact useless, so drop it.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Jiang Liu <jiang.liu@huawei.com>
Acked-by: Toshi Kani <toshi.kani@hp.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
---
 drivers/acpi/ac.c               | 4 ++--
 drivers/acpi/acpi_memhotplug.c  | 4 ++--
 drivers/acpi/acpi_pad.c         | 3 +--
 drivers/acpi/battery.c          | 2 +-
 drivers/acpi/button.c           | 4 ++--
 drivers/acpi/container.c        | 4 ++--
 drivers/acpi/ec.c               | 2 +-
 drivers/acpi/fan.c              | 4 ++--
 drivers/acpi/hed.c              | 2 +-
 drivers/acpi/pci_link.c         | 4 ++--
 drivers/acpi/pci_root.c         | 4 ++--
 drivers/acpi/processor_driver.c | 6 +++---
 drivers/acpi/sbs.c              | 6 +++---
 drivers/acpi/sbshc.c            | 4 ++--
 drivers/acpi/scan.c             | 5 ++---
 drivers/acpi/thermal.c          | 4 ++--
 drivers/acpi/video.c            | 4 ++--
 17 files changed, 32 insertions(+), 34 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
index d5fdd36190cc..6d5bf649196d 100644
--- a/drivers/acpi/ac.c
+++ b/drivers/acpi/ac.c
@@ -60,7 +60,7 @@ static int acpi_ac_open_fs(struct inode *inode, struct file *file);
 #endif
 
 static int acpi_ac_add(struct acpi_device *device);
-static int acpi_ac_remove(struct acpi_device *device, int type);
+static int acpi_ac_remove(struct acpi_device *device);
 static void acpi_ac_notify(struct acpi_device *device, u32 event);
 
 static const struct acpi_device_id ac_device_ids[] = {
@@ -337,7 +337,7 @@ static int acpi_ac_resume(struct device *dev)
 }
 #endif
 
-static int acpi_ac_remove(struct acpi_device *device, int type)
+static int acpi_ac_remove(struct acpi_device *device)
 {
 	struct acpi_ac *ac = NULL;
 
diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c
index 03d18f290118..94c823b25138 100644
--- a/drivers/acpi/acpi_memhotplug.c
+++ b/drivers/acpi/acpi_memhotplug.c
@@ -54,7 +54,7 @@ MODULE_LICENSE("GPL");
 #define MEMORY_POWER_OFF_STATE	2
 
 static int acpi_memory_device_add(struct acpi_device *device);
-static int acpi_memory_device_remove(struct acpi_device *device, int type);
+static int acpi_memory_device_remove(struct acpi_device *device);
 
 static const struct acpi_device_id memory_device_ids[] = {
 	{ACPI_MEMORY_DEVICE_HID, 0},
@@ -415,7 +415,7 @@ static int acpi_memory_device_add(struct acpi_device *device)
 	return result;
 }
 
-static int acpi_memory_device_remove(struct acpi_device *device, int type)
+static int acpi_memory_device_remove(struct acpi_device *device)
 {
 	struct acpi_memory_device *mem_device = NULL;
 	int result;
diff --git a/drivers/acpi/acpi_pad.c b/drivers/acpi/acpi_pad.c
index 16fa979f7180..31de1043eea0 100644
--- a/drivers/acpi/acpi_pad.c
+++ b/drivers/acpi/acpi_pad.c
@@ -482,8 +482,7 @@ static int acpi_pad_add(struct acpi_device *device)
 	return 0;
 }
 
-static int acpi_pad_remove(struct acpi_device *device,
-	int type)
+static int acpi_pad_remove(struct acpi_device *device)
 {
 	mutex_lock(&isolated_cpus_lock);
 	acpi_pad_idle_cpus(0);
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 7efaeaa53b88..c5cd5b5513e6 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -1111,7 +1111,7 @@ fail:
 	return result;
 }
 
-static int acpi_battery_remove(struct acpi_device *device, int type)
+static int acpi_battery_remove(struct acpi_device *device)
 {
 	struct acpi_battery *battery = NULL;
 
diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index f0d936b65e37..86c7d5445c38 100644
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -75,7 +75,7 @@ static const struct acpi_device_id button_device_ids[] = {
 MODULE_DEVICE_TABLE(acpi, button_device_ids);
 
 static int acpi_button_add(struct acpi_device *device);
-static int acpi_button_remove(struct acpi_device *device, int type);
+static int acpi_button_remove(struct acpi_device *device);
 static void acpi_button_notify(struct acpi_device *device, u32 event);
 
 #ifdef CONFIG_PM_SLEEP
@@ -433,7 +433,7 @@ static int acpi_button_add(struct acpi_device *device)
 	return error;
 }
 
-static int acpi_button_remove(struct acpi_device *device, int type)
+static int acpi_button_remove(struct acpi_device *device)
 {
 	struct acpi_button *button = acpi_driver_data(device);
 
diff --git a/drivers/acpi/container.c b/drivers/acpi/container.c
index cc79d3e53a39..cc0bf4613e0d 100644
--- a/drivers/acpi/container.c
+++ b/drivers/acpi/container.c
@@ -52,7 +52,7 @@ MODULE_DESCRIPTION("ACPI container driver");
 MODULE_LICENSE("GPL");
 
 static int acpi_container_add(struct acpi_device *device);
-static int acpi_container_remove(struct acpi_device *device, int type);
+static int acpi_container_remove(struct acpi_device *device);
 
 static const struct acpi_device_id container_device_ids[] = {
 	{"ACPI0004", 0},
@@ -125,7 +125,7 @@ static int acpi_container_add(struct acpi_device *device)
 	return 0;
 }
 
-static int acpi_container_remove(struct acpi_device *device, int type)
+static int acpi_container_remove(struct acpi_device *device)
 {
 	acpi_status status = AE_OK;
 	struct acpi_container *pc = NULL;
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 354007d490d1..d45b2871d33b 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -852,7 +852,7 @@ static int acpi_ec_add(struct acpi_device *device)
 	return ret;
 }
 
-static int acpi_ec_remove(struct acpi_device *device, int type)
+static int acpi_ec_remove(struct acpi_device *device)
 {
 	struct acpi_ec *ec;
 	struct acpi_ec_query_handler *handler, *tmp;
diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c
index 3bd6a54702d6..f815da82c765 100644
--- a/drivers/acpi/fan.c
+++ b/drivers/acpi/fan.c
@@ -45,7 +45,7 @@ MODULE_DESCRIPTION("ACPI Fan Driver");
 MODULE_LICENSE("GPL");
 
 static int acpi_fan_add(struct acpi_device *device);
-static int acpi_fan_remove(struct acpi_device *device, int type);
+static int acpi_fan_remove(struct acpi_device *device);
 
 static const struct acpi_device_id fan_device_ids[] = {
 	{"PNP0C0B", 0},
@@ -172,7 +172,7 @@ static int acpi_fan_add(struct acpi_device *device)
 	return result;
 }
 
-static int acpi_fan_remove(struct acpi_device *device, int type)
+static int acpi_fan_remove(struct acpi_device *device)
 {
 	struct thermal_cooling_device *cdev = acpi_driver_data(device);
 
diff --git a/drivers/acpi/hed.c b/drivers/acpi/hed.c
index a0cc796932f7..13b1d39d7cdf 100644
--- a/drivers/acpi/hed.c
+++ b/drivers/acpi/hed.c
@@ -70,7 +70,7 @@ static int acpi_hed_add(struct acpi_device *device)
 	return 0;
 }
 
-static int acpi_hed_remove(struct acpi_device *device, int type)
+static int acpi_hed_remove(struct acpi_device *device)
 {
 	hed_handle = NULL;
 	return 0;
diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c
index a12808259dfb..b6592797f5b2 100644
--- a/drivers/acpi/pci_link.c
+++ b/drivers/acpi/pci_link.c
@@ -54,7 +54,7 @@ ACPI_MODULE_NAME("pci_link");
 #define ACPI_PCI_LINK_MAX_POSSIBLE	16
 
 static int acpi_pci_link_add(struct acpi_device *device);
-static int acpi_pci_link_remove(struct acpi_device *device, int type);
+static int acpi_pci_link_remove(struct acpi_device *device);
 
 static const struct acpi_device_id link_device_ids[] = {
 	{"PNP0C0F", 0},
@@ -766,7 +766,7 @@ static void irqrouter_resume(void)
 	}
 }
 
-static int acpi_pci_link_remove(struct acpi_device *device, int type)
+static int acpi_pci_link_remove(struct acpi_device *device)
 {
 	struct acpi_pci_link *link;
 
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 22a8458b4ec9..8890775e8b25 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -46,7 +46,7 @@ ACPI_MODULE_NAME("pci_root");
 #define ACPI_PCI_ROOT_CLASS		"pci_bridge"
 #define ACPI_PCI_ROOT_DEVICE_NAME	"PCI Root Bridge"
 static int acpi_pci_root_add(struct acpi_device *device);
-static int acpi_pci_root_remove(struct acpi_device *device, int type);
+static int acpi_pci_root_remove(struct acpi_device *device);
 
 #define ACPI_PCIE_REQ_SUPPORT (OSC_EXT_PCI_CONFIG_SUPPORT \
 				| OSC_ACTIVE_STATE_PWR_SUPPORT \
@@ -627,7 +627,7 @@ end:
 	return result;
 }
 
-static int acpi_pci_root_remove(struct acpi_device *device, int type)
+static int acpi_pci_root_remove(struct acpi_device *device)
 {
 	acpi_status status;
 	acpi_handle handle;
diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c
index 9c5929a17d3a..c5d2fd85dbe0 100644
--- a/drivers/acpi/processor_driver.c
+++ b/drivers/acpi/processor_driver.c
@@ -81,7 +81,7 @@ MODULE_DESCRIPTION("ACPI Processor Driver");
 MODULE_LICENSE("GPL");
 
 static int acpi_processor_add(struct acpi_device *device);
-static int acpi_processor_remove(struct acpi_device *device, int type);
+static int acpi_processor_remove(struct acpi_device *device);
 static void acpi_processor_notify(struct acpi_device *device, u32 event);
 static acpi_status acpi_processor_hotadd_init(struct acpi_processor *pr);
 static int acpi_processor_handle_eject(struct acpi_processor *pr);
@@ -610,7 +610,7 @@ err_free_pr:
 	return result;
 }
 
-static int acpi_processor_remove(struct acpi_device *device, int type)
+static int acpi_processor_remove(struct acpi_device *device)
 {
 	struct acpi_processor *pr = NULL;
 
@@ -623,7 +623,7 @@ static int acpi_processor_remove(struct acpi_device *device, int type)
 	if (pr->id >= nr_cpu_ids)
 		goto free;
 
-	if (type == ACPI_BUS_REMOVAL_EJECT) {
+	if (device->removal_type == ACPI_BUS_REMOVAL_EJECT) {
 		if (acpi_processor_handle_eject(pr))
 			return -EINVAL;
 	}
diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c
index ff0740e0a9c2..e523245643ac 100644
--- a/drivers/acpi/sbs.c
+++ b/drivers/acpi/sbs.c
@@ -130,7 +130,7 @@ struct acpi_sbs {
 
 #define to_acpi_sbs(x) container_of(x, struct acpi_sbs, charger)
 
-static int acpi_sbs_remove(struct acpi_device *device, int type);
+static int acpi_sbs_remove(struct acpi_device *device);
 static int acpi_battery_get_state(struct acpi_battery *battery);
 
 static inline int battery_scale(int log)
@@ -949,11 +949,11 @@ static int acpi_sbs_add(struct acpi_device *device)
 	acpi_smbus_register_callback(sbs->hc, acpi_sbs_callback, sbs);
       end:
 	if (result)
-		acpi_sbs_remove(device, 0);
+		acpi_sbs_remove(device);
 	return result;
 }
 
-static int acpi_sbs_remove(struct acpi_device *device, int type)
+static int acpi_sbs_remove(struct acpi_device *device)
 {
 	struct acpi_sbs *sbs;
 	int id;
diff --git a/drivers/acpi/sbshc.c b/drivers/acpi/sbshc.c
index cf6129a8af7c..b78bc605837e 100644
--- a/drivers/acpi/sbshc.c
+++ b/drivers/acpi/sbshc.c
@@ -33,7 +33,7 @@ struct acpi_smb_hc {
 };
 
 static int acpi_smbus_hc_add(struct acpi_device *device);
-static int acpi_smbus_hc_remove(struct acpi_device *device, int type);
+static int acpi_smbus_hc_remove(struct acpi_device *device);
 
 static const struct acpi_device_id sbs_device_ids[] = {
 	{"ACPI0001", 0},
@@ -296,7 +296,7 @@ static int acpi_smbus_hc_add(struct acpi_device *device)
 
 extern void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit);
 
-static int acpi_smbus_hc_remove(struct acpi_device *device, int type)
+static int acpi_smbus_hc_remove(struct acpi_device *device)
 {
 	struct acpi_smb_hc *hc;
 
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index bc8077f173da..0989b323e65f 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -577,8 +577,7 @@ static int acpi_device_probe(struct device * dev)
 			ret = acpi_device_install_notify_handler(acpi_dev);
 			if (ret) {
 				if (acpi_drv->ops.remove)
-					acpi_drv->ops.remove(acpi_dev,
-						     acpi_dev->removal_type);
+					acpi_drv->ops.remove(acpi_dev);
 				return ret;
 			}
 		}
@@ -600,7 +599,7 @@ static int acpi_device_remove(struct device * dev)
 		if (acpi_drv->ops.notify)
 			acpi_device_remove_notify_handler(acpi_dev);
 		if (acpi_drv->ops.remove)
-			acpi_drv->ops.remove(acpi_dev, acpi_dev->removal_type);
+			acpi_drv->ops.remove(acpi_dev);
 	}
 	acpi_dev->driver = NULL;
 	acpi_dev->driver_data = NULL;
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 506fbd4b5733..da079d4e0baa 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -97,7 +97,7 @@ module_param(psv, int, 0644);
 MODULE_PARM_DESC(psv, "Disable or override all passive trip points.");
 
 static int acpi_thermal_add(struct acpi_device *device);
-static int acpi_thermal_remove(struct acpi_device *device, int type);
+static int acpi_thermal_remove(struct acpi_device *device);
 static void acpi_thermal_notify(struct acpi_device *device, u32 event);
 
 static const struct acpi_device_id  thermal_device_ids[] = {
@@ -1111,7 +1111,7 @@ end:
 	return result;
 }
 
-static int acpi_thermal_remove(struct acpi_device *device, int type)
+static int acpi_thermal_remove(struct acpi_device *device)
 {
 	struct acpi_thermal *tz = NULL;
 
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index ac9a69cd45f5..5be60ad8381f 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -88,7 +88,7 @@ module_param(use_bios_initial_backlight, bool, 0644);
 
 static int register_count = 0;
 static int acpi_video_bus_add(struct acpi_device *device);
-static int acpi_video_bus_remove(struct acpi_device *device, int type);
+static int acpi_video_bus_remove(struct acpi_device *device);
 static void acpi_video_bus_notify(struct acpi_device *device, u32 event);
 
 static const struct acpi_device_id video_device_ids[] = {
@@ -1740,7 +1740,7 @@ static int acpi_video_bus_add(struct acpi_device *device)
 	return error;
 }
 
-static int acpi_video_bus_remove(struct acpi_device *device, int type)
+static int acpi_video_bus_remove(struct acpi_device *device)
 {
 	struct acpi_video_bus *video = NULL;
 
-- 
cgit v1.2.3


From c511cc1990bbc263c3f8a2ef4d7d613a3b40ffe2 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Sun, 27 Jan 2013 21:17:29 +0100
Subject: ACPI / scan: Make namespace scanning and trimming mutually exclusive

There is no guarantee that acpi_bus_scan() and acpi_bus_trim() will
not be run in parallel for the same scope of the ACPI namespace,
which may lead to a great deal of confusion, so introduce a new mutex
to prevent that from happening.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
---
 drivers/acpi/scan.c | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index d37f290be44c..43754655c156 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -52,6 +52,7 @@ static const struct acpi_device_id acpi_platform_device_ids[] = {
 
 static LIST_HEAD(acpi_device_list);
 static LIST_HEAD(acpi_bus_id_list);
+static DEFINE_MUTEX(acpi_scan_lock);
 DEFINE_MUTEX(acpi_device_lock);
 LIST_HEAD(acpi_wakeup_device_list);
 
@@ -1587,19 +1588,22 @@ static acpi_status acpi_bus_device_attach(acpi_handle handle, u32 lvl_not_used,
 int acpi_bus_scan(acpi_handle handle)
 {
 	void *device = NULL;
+	int error = 0;
+
+	mutex_lock(&acpi_scan_lock);
 
 	if (ACPI_SUCCESS(acpi_bus_check_add(handle, 0, NULL, &device)))
 		acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX,
 				    acpi_bus_check_add, NULL, NULL, &device);
 
 	if (!device)
-		return -ENODEV;
-
-	if (ACPI_SUCCESS(acpi_bus_device_attach(handle, 0, NULL, NULL)))
+		error = -ENODEV;
+	else if (ACPI_SUCCESS(acpi_bus_device_attach(handle, 0, NULL, NULL)))
 		acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX,
 				    acpi_bus_device_attach, NULL, NULL, NULL);
 
-	return 0;
+	mutex_unlock(&acpi_scan_lock);
+	return error;
 }
 EXPORT_SYMBOL(acpi_bus_scan);
 
@@ -1628,6 +1632,8 @@ static acpi_status acpi_bus_remove(acpi_handle handle, u32 lvl_not_used,
 
 void acpi_bus_trim(struct acpi_device *start)
 {
+	mutex_lock(&acpi_scan_lock);
+
 	/*
 	 * Execute acpi_bus_device_detach() as a post-order callback to detach
 	 * all ACPI drivers from the device nodes being removed.
@@ -1642,6 +1648,8 @@ void acpi_bus_trim(struct acpi_device *start)
 	acpi_walk_namespace(ACPI_TYPE_ANY, start->handle, ACPI_UINT32_MAX, NULL,
 			    acpi_bus_remove, NULL, NULL);
 	acpi_bus_remove(start->handle, 0, NULL, NULL);
+
+	mutex_unlock(&acpi_scan_lock);
 }
 EXPORT_SYMBOL_GPL(acpi_bus_trim);
 
-- 
cgit v1.2.3


From 65ab96f60621c4da8f1b4087a57b788bc4d8f27b Mon Sep 17 00:00:00 2001
From: Andreas Fleig <andreasfleig@gmail.com>
Date: Sun, 27 Jan 2013 14:17:55 +0000
Subject: ACPI / PM: Fix /proc/acpi/wakeup for devices w/o bus or parent

Fix /proc/acpi/wakeup for devices without bus or parent

This patch fixes printing the wakeup status for devices without a bus
or parent, such as laptop lid switches and sleep buttons. These devices
have an empty physical_node_list, because acpi_bind_one is never run
for them.

[rjw: White space and coding style.]
Signed-off-by: Andreas Fleig <andreasfleig@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/proc.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/proc.c b/drivers/acpi/proc.c
index ef98796b3824..52ce76725c20 100644
--- a/drivers/acpi/proc.c
+++ b/drivers/acpi/proc.c
@@ -311,11 +311,12 @@ acpi_system_wakeup_device_seq_show(struct seq_file *seq, void *offset)
 			   dev->pnp.bus_id,
 			   (u32) dev->wakeup.sleep_state);
 
-		if (!dev->physical_node_count)
+		if (!dev->physical_node_count) {
 			seq_printf(seq, "%c%-8s\n",
-				dev->wakeup.flags.run_wake ?
-				'*' : ' ', "disabled");
-		else {
+				dev->wakeup.flags.run_wake ? '*' : ' ',
+				device_may_wakeup(&dev->dev) ?
+					"enabled" : "disabled");
+		} else {
 			struct device *ldev;
 			list_for_each_entry(entry, &dev->physical_node_list,
 					node) {
-- 
cgit v1.2.3


From 2c0d4fe0189ae5e29fd9602d5b83f3b2b169bd1b Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Tue, 29 Jan 2013 13:57:20 +0100
Subject: ACPI / scan: Make scanning of fixed devices follow the general scheme

Make acpi_bus_scan_fixed() use device_attach() directly to attach
drivers, if any, to the fixed devices in analogy with how
acpi_bus_scan() works, which allows the last argument of
acpi_add_single_object() to be dropped and the manipulation of the
flags.match_driver bit to be moved to acpi_init_device_object()
and acpi_device_add_finalize().

After these changes all of the functions for the initialization
and registration of struct acpi_device objects work in the same
way for all of them.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
---
 drivers/acpi/scan.c | 35 ++++++++++++++++++++++++-----------
 1 file changed, 24 insertions(+), 11 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index a4a2595b6d88..b206ce5e1faf 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1441,19 +1441,21 @@ void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
 	acpi_device_get_busid(device);
 	acpi_device_set_id(device);
 	acpi_bus_get_flags(device);
+	device->flags.match_driver = false;
 	device_initialize(&device->dev);
 	dev_set_uevent_suppress(&device->dev, true);
 }
 
 void acpi_device_add_finalize(struct acpi_device *device)
 {
+	device->flags.match_driver = true;
 	dev_set_uevent_suppress(&device->dev, false);
 	kobject_uevent(&device->dev.kobj, KOBJ_ADD);
 }
 
 static int acpi_add_single_object(struct acpi_device **child,
 				  acpi_handle handle, int type,
-				  unsigned long long sta, bool match_driver)
+				  unsigned long long sta)
 {
 	int result;
 	struct acpi_device *device;
@@ -1469,7 +1471,6 @@ static int acpi_add_single_object(struct acpi_device **child,
 	acpi_bus_get_power_flags(device);
 	acpi_bus_get_wakeup_device_flags(device);
 
-	device->flags.match_driver = match_driver;
 	result = acpi_device_add(device, acpi_device_release);
 	if (result) {
 		acpi_device_release(&device->dev);
@@ -1562,12 +1563,10 @@ static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl_not_used,
 		return AE_CTRL_DEPTH;
 	}
 
-	acpi_add_single_object(&device, handle, type, sta, false);
+	acpi_add_single_object(&device, handle, type, sta);
 	if (!device)
 		return AE_CTRL_DEPTH;
 
-	device->flags.match_driver = true;
-
  out:
 	if (!*return_value)
 		*return_value = device;
@@ -1679,25 +1678,39 @@ EXPORT_SYMBOL_GPL(acpi_bus_trim);
 static int acpi_bus_scan_fixed(void)
 {
 	int result = 0;
-	struct acpi_device *device = NULL;
 
 	/*
 	 * Enumerate all fixed-feature devices.
 	 */
-	if ((acpi_gbl_FADT.flags & ACPI_FADT_POWER_BUTTON) == 0) {
+	if (!(acpi_gbl_FADT.flags & ACPI_FADT_POWER_BUTTON)) {
+		struct acpi_device *device = NULL;
+
 		result = acpi_add_single_object(&device, NULL,
 						ACPI_BUS_TYPE_POWER_BUTTON,
-						ACPI_STA_DEFAULT, true);
+						ACPI_STA_DEFAULT);
+		if (result)
+			return result;
+
+		result = device_attach(&device->dev);
+		if (result < 0)
+			return result;
+
 		device_init_wakeup(&device->dev, true);
 	}
 
-	if ((acpi_gbl_FADT.flags & ACPI_FADT_SLEEP_BUTTON) == 0) {
+	if (!(acpi_gbl_FADT.flags & ACPI_FADT_SLEEP_BUTTON)) {
+		struct acpi_device *device = NULL;
+
 		result = acpi_add_single_object(&device, NULL,
 						ACPI_BUS_TYPE_SLEEP_BUTTON,
-						ACPI_STA_DEFAULT, true);
+						ACPI_STA_DEFAULT);
+		if (result)
+			return result;
+
+		result = device_attach(&device->dev);
 	}
 
-	return result;
+	return result < 0 ? result : 0;
 }
 
 int __init acpi_scan_init(void)
-- 
cgit v1.2.3


From ca589f9469641916f4f9bd6a820012a27102ef63 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Wed, 30 Jan 2013 14:27:29 +0100
Subject: ACPI / scan: Introduce struct acpi_scan_handler

Introduce struct acpi_scan_handler for representing objects that
will do configuration tasks depending on ACPI device nodes'
hardware IDs (HIDs).

Currently, those tasks are done either directly by the ACPI namespace
scanning code or by ACPI device drivers designed specifically for
this purpose.  None of the above is desirable, however, because
doing that directly in the namespace scanning code makes that code
overly complicated and difficult to follow and doing that in
"special" device drivers leads to a great deal of confusion about
their role and to confusing interactions with the driver core (for
example, sysfs directories are created for those drivers, but they
are completely unnecessary and only increase the kernel's memory
footprint in vain).

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Acked-by: Toshi Kani <toshi.kani@hp.com>
---
 drivers/acpi/scan.c | 60 ++++++++++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 53 insertions(+), 7 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index fe9f2c926663..1453cd0672fb 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -53,6 +53,7 @@ static const struct acpi_device_id acpi_platform_device_ids[] = {
 static LIST_HEAD(acpi_device_list);
 static LIST_HEAD(acpi_bus_id_list);
 static DEFINE_MUTEX(acpi_scan_lock);
+static LIST_HEAD(acpi_scan_handlers_list);
 DEFINE_MUTEX(acpi_device_lock);
 LIST_HEAD(acpi_wakeup_device_list);
 
@@ -62,6 +63,15 @@ struct acpi_device_bus_id{
 	struct list_head node;
 };
 
+int acpi_scan_add_handler(struct acpi_scan_handler *handler)
+{
+	if (!handler || !handler->attach)
+		return -EINVAL;
+
+	list_add_tail(&handler->list_node, &acpi_scan_handlers_list);
+	return 0;
+}
+
 /*
  * Creates hid/cid(s) string needed for modalias and uevent
  * e.g. on a device with hid:IBM0001 and cid:ACPI0001 you get:
@@ -1570,20 +1580,42 @@ static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl_not_used,
 	return AE_OK;
 }
 
+static int acpi_scan_attach_handler(struct acpi_device *device)
+{
+	struct acpi_scan_handler *handler;
+	int ret = 0;
+
+	list_for_each_entry(handler, &acpi_scan_handlers_list, list_node) {
+		const struct acpi_device_id *id;
+
+		id = __acpi_match_device(device, handler->ids);
+		if (!id)
+			continue;
+
+		ret = handler->attach(device, id);
+		if (ret > 0) {
+			device->handler = handler;
+			break;
+		} else if (ret < 0) {
+			break;
+		}
+	}
+	return ret;
+}
+
 static acpi_status acpi_bus_device_attach(acpi_handle handle, u32 lvl_not_used,
 					  void *not_used, void **ret_not_used)
 {
 	const struct acpi_device_id *id;
-	acpi_status status = AE_OK;
 	struct acpi_device *device;
 	unsigned long long sta_not_used;
-	int type_not_used;
+	int ret;
 
 	/*
 	 * Ignore errors ignored by acpi_bus_check_add() to avoid terminating
 	 * namespace walks prematurely.
 	 */
-	if (acpi_bus_type_and_status(handle, &type_not_used, &sta_not_used))
+	if (acpi_bus_type_and_status(handle, &ret, &sta_not_used))
 		return AE_OK;
 
 	if (acpi_bus_get_device(handle, &device))
@@ -1593,10 +1625,15 @@ static acpi_status acpi_bus_device_attach(acpi_handle handle, u32 lvl_not_used,
 	if (id) {
 		/* This is a known good platform device. */
 		acpi_create_platform_device(device, id->driver_data);
-	} else if (device_attach(&device->dev) < 0) {
-		status = AE_CTRL_DEPTH;
+		return AE_OK;
 	}
-	return status;
+
+	ret = acpi_scan_attach_handler(device);
+	if (ret)
+		return ret > 0 ? AE_OK : AE_CTRL_DEPTH;
+
+	ret = device_attach(&device->dev);
+	return ret >= 0 ? AE_OK : AE_CTRL_DEPTH;
 }
 
 /**
@@ -1639,8 +1676,17 @@ static acpi_status acpi_bus_device_detach(acpi_handle handle, u32 lvl_not_used,
 	struct acpi_device *device = NULL;
 
 	if (!acpi_bus_get_device(handle, &device)) {
+		struct acpi_scan_handler *dev_handler = device->handler;
+
 		device->removal_type = ACPI_BUS_REMOVAL_EJECT;
-		device_release_driver(&device->dev);
+		if (dev_handler) {
+			if (dev_handler->detach)
+				dev_handler->detach(device);
+
+			device->handler = NULL;
+		} else {
+			device_release_driver(&device->dev);
+		}
 	}
 	return AE_OK;
 }
-- 
cgit v1.2.3


From 00c43b9682507dc622c03172fde1032e2a216e9d Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Wed, 30 Jan 2013 14:27:33 +0100
Subject: ACPI / PCI: Make PCI root driver use struct acpi_scan_handler

Make the ACPI PCI root bridge driver use struct acpi_scan_handler
for representing the object used to enumerate the PCI busses under
PCI host bridges found in the ACPI namespace (and to tear down data
structures representing the bus and devices on it before
unregistering the host bridges' ACPI device nodes).

This simplifies the code slightly and reduces the kernel's memory
footprint by avoiding the registration of a struct device_driver
object with the driver core and creation of its sysfs directory
which is unnecessary.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Toshi Kani <toshi.kani@hp.com>
---
 drivers/acpi/internal.h |  2 +-
 drivers/acpi/pci_root.c | 38 +++++++++++++++-----------------------
 2 files changed, 16 insertions(+), 24 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index da233477d260..8310ba010176 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -25,6 +25,7 @@
 
 int init_acpi_device_notify(void);
 int acpi_scan_init(void);
+void acpi_pci_root_init(void);
 int acpi_sysfs_init(void);
 void acpi_csrt_init(void);
 
@@ -86,7 +87,6 @@ struct acpi_ec {
 
 extern struct acpi_ec *first_ec;
 
-int acpi_pci_root_init(void);
 int acpi_ec_init(void);
 int acpi_ec_ecdt_probe(void);
 int acpi_boot_ec_enable(void);
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 8890775e8b25..b3cc69c5caf1 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -45,8 +45,9 @@
 ACPI_MODULE_NAME("pci_root");
 #define ACPI_PCI_ROOT_CLASS		"pci_bridge"
 #define ACPI_PCI_ROOT_DEVICE_NAME	"PCI Root Bridge"
-static int acpi_pci_root_add(struct acpi_device *device);
-static int acpi_pci_root_remove(struct acpi_device *device);
+static int acpi_pci_root_add(struct acpi_device *device,
+			     const struct acpi_device_id *not_used);
+static void acpi_pci_root_remove(struct acpi_device *device);
 
 #define ACPI_PCIE_REQ_SUPPORT (OSC_EXT_PCI_CONFIG_SUPPORT \
 				| OSC_ACTIVE_STATE_PWR_SUPPORT \
@@ -57,16 +58,11 @@ static const struct acpi_device_id root_device_ids[] = {
 	{"PNP0A03", 0},
 	{"", 0},
 };
-MODULE_DEVICE_TABLE(acpi, root_device_ids);
 
-static struct acpi_driver acpi_pci_root_driver = {
-	.name = "pci_root",
-	.class = ACPI_PCI_ROOT_CLASS,
+static struct acpi_scan_handler pci_root_handler = {
 	.ids = root_device_ids,
-	.ops = {
-		.add = acpi_pci_root_add,
-		.remove = acpi_pci_root_remove,
-		},
+	.attach = acpi_pci_root_add,
+	.detach = acpi_pci_root_remove,
 };
 
 /* Lock to protect both acpi_pci_roots and acpi_pci_drivers lists */
@@ -428,7 +424,8 @@ out:
 }
 EXPORT_SYMBOL(acpi_pci_osc_control_set);
 
-static int acpi_pci_root_add(struct acpi_device *device)
+static int acpi_pci_root_add(struct acpi_device *device,
+			     const struct acpi_device_id *not_used)
 {
 	unsigned long long segment, bus;
 	acpi_status status;
@@ -614,7 +611,7 @@ static int acpi_pci_root_add(struct acpi_device *device)
 		pci_enable_bridges(root->bus);
 
 	pci_bus_add_devices(root->bus);
-	return 0;
+	return 1;
 
 out_del_root:
 	mutex_lock(&acpi_pci_root_lock);
@@ -627,7 +624,7 @@ end:
 	return result;
 }
 
-static int acpi_pci_root_remove(struct acpi_device *device)
+static void acpi_pci_root_remove(struct acpi_device *device)
 {
 	acpi_status status;
 	acpi_handle handle;
@@ -655,19 +652,14 @@ static int acpi_pci_root_remove(struct acpi_device *device)
 	list_del(&root->node);
 	mutex_unlock(&acpi_pci_root_lock);
 	kfree(root);
-	return 0;
 }
 
-int __init acpi_pci_root_init(void)
+void __init acpi_pci_root_init(void)
 {
 	acpi_hest_init();
 
-	if (acpi_pci_disabled)
-		return 0;
-
-	pci_acpi_crs_quirks();
-	if (acpi_bus_register_driver(&acpi_pci_root_driver) < 0)
-		return -ENODEV;
-
-	return 0;
+	if (!acpi_pci_disabled) {
+		pci_acpi_crs_quirks();
+		acpi_scan_add_handler(&pci_root_handler);
+	}
 }
-- 
cgit v1.2.3


From 4daeaf68379f75dedd120582add5206c7c5ad72e Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Wed, 30 Jan 2013 14:27:37 +0100
Subject: ACPI / PCI: Make PCI IRQ link driver use struct acpi_scan_handler

Make the ACPI PCI IRQ link driver use struct acpi_scan_handler
for representing the object used to set up ACPI interrupt links and
to remove data structures used for this purpose before unregistering
the corresponding ACPI device nodes.

This simplifies the code slightly and reduces the kernel's memory
footprint by avoiding the registration of a struct device_driver
object with the driver core and creation of its sysfs directory
which is unnecessary.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Toshi Kani <toshi.kani@hp.com>
---
 drivers/acpi/internal.h |  1 +
 drivers/acpi/pci_link.c | 47 ++++++++++++++---------------------------------
 drivers/acpi/scan.c     |  1 +
 3 files changed, 16 insertions(+), 33 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 8310ba010176..e5a65217e480 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -26,6 +26,7 @@
 int init_acpi_device_notify(void);
 int acpi_scan_init(void);
 void acpi_pci_root_init(void);
+void acpi_pci_link_init(void);
 int acpi_sysfs_init(void);
 void acpi_csrt_init(void);
 
diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c
index b6592797f5b2..ab764ed34a50 100644
--- a/drivers/acpi/pci_link.c
+++ b/drivers/acpi/pci_link.c
@@ -53,23 +53,19 @@ ACPI_MODULE_NAME("pci_link");
 #define ACPI_PCI_LINK_FILE_STATUS	"state"
 #define ACPI_PCI_LINK_MAX_POSSIBLE	16
 
-static int acpi_pci_link_add(struct acpi_device *device);
-static int acpi_pci_link_remove(struct acpi_device *device);
+static int acpi_pci_link_add(struct acpi_device *device,
+			     const struct acpi_device_id *not_used);
+static void acpi_pci_link_remove(struct acpi_device *device);
 
 static const struct acpi_device_id link_device_ids[] = {
 	{"PNP0C0F", 0},
 	{"", 0},
 };
-MODULE_DEVICE_TABLE(acpi, link_device_ids);
 
-static struct acpi_driver acpi_pci_link_driver = {
-	.name = "pci_link",
-	.class = ACPI_PCI_LINK_CLASS,
+static struct acpi_scan_handler pci_link_handler = {
 	.ids = link_device_ids,
-	.ops = {
-		.add = acpi_pci_link_add,
-		.remove = acpi_pci_link_remove,
-	},
+	.attach = acpi_pci_link_add,
+	.detach = acpi_pci_link_remove,
 };
 
 /*
@@ -692,7 +688,8 @@ int acpi_pci_link_free_irq(acpi_handle handle)
                                  Driver Interface
    -------------------------------------------------------------------------- */
 
-static int acpi_pci_link_add(struct acpi_device *device)
+static int acpi_pci_link_add(struct acpi_device *device,
+			     const struct acpi_device_id *not_used)
 {
 	int result;
 	struct acpi_pci_link *link;
@@ -746,7 +743,7 @@ static int acpi_pci_link_add(struct acpi_device *device)
 	if (result)
 		kfree(link);
 
-	return result;
+	return result < 0 ? result : 1;
 }
 
 static int acpi_pci_link_resume(struct acpi_pci_link *link)
@@ -766,7 +763,7 @@ static void irqrouter_resume(void)
 	}
 }
 
-static int acpi_pci_link_remove(struct acpi_device *device)
+static void acpi_pci_link_remove(struct acpi_device *device)
 {
 	struct acpi_pci_link *link;
 
@@ -777,7 +774,6 @@ static int acpi_pci_link_remove(struct acpi_device *device)
 	mutex_unlock(&acpi_link_lock);
 
 	kfree(link);
-	return 0;
 }
 
 /*
@@ -874,20 +870,10 @@ static struct syscore_ops irqrouter_syscore_ops = {
 	.resume = irqrouter_resume,
 };
 
-static int __init irqrouter_init_ops(void)
-{
-	if (!acpi_disabled && !acpi_noirq)
-		register_syscore_ops(&irqrouter_syscore_ops);
-
-	return 0;
-}
-
-device_initcall(irqrouter_init_ops);
-
-static int __init acpi_pci_link_init(void)
+void __init acpi_pci_link_init(void)
 {
 	if (acpi_noirq)
-		return 0;
+		return;
 
 	if (acpi_irq_balance == -1) {
 		/* no command line switch: enable balancing in IOAPIC mode */
@@ -896,11 +882,6 @@ static int __init acpi_pci_link_init(void)
 		else
 			acpi_irq_balance = 0;
 	}
-
-	if (acpi_bus_register_driver(&acpi_pci_link_driver) < 0)
-		return -ENODEV;
-
-	return 0;
+	register_syscore_ops(&irqrouter_syscore_ops);
+	acpi_scan_add_handler(&pci_link_handler);
 }
-
-subsys_initcall(acpi_pci_link_init);
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 1453cd0672fb..c2821699bc49 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1774,6 +1774,7 @@ int __init acpi_scan_init(void)
 	}
 
 	acpi_pci_root_init();
+	acpi_pci_link_init();
 	acpi_csrt_init();
 
 	/*
-- 
cgit v1.2.3


From 141a297bd02e8ddc5ab625cc3a1a5926b1ff929a Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Wed, 30 Jan 2013 14:27:40 +0100
Subject: ACPI / platform: Use struct acpi_scan_handler for creating devices

Currently, the ACPI namespace scanning code creates platform device
objects for ACPI device nodes whose IDs match the contents of the
acpi_platform_device_ids[] table.  However, this adds a superfluous
special case into acpi_bus_device_attach() and makes it more
difficult to follow than it has to be.  It also will make it more
difficult to implement removal code for those platform device objects
in the future.

For the above reasons, introduce a struct acpi_scan_handler object
for creating platform devices and move the code related to that from
acpi_bus_device_attach() to the .attach() callback of that object.
Also move the acpi_platform_device_ids[] table to acpi_platform.c.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Acked-by: Toshi Kani <toshi.kani@hp.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
---
 drivers/acpi/acpi_platform.c | 59 +++++++++++++++++++++++++++++++++++---------
 drivers/acpi/internal.h      |  7 +-----
 drivers/acpi/scan.c          | 30 +---------------------
 3 files changed, 50 insertions(+), 46 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpi_platform.c b/drivers/acpi/acpi_platform.c
index 2d1fb4c21605..26fce4b8a632 100644
--- a/drivers/acpi/acpi_platform.c
+++ b/drivers/acpi/acpi_platform.c
@@ -22,6 +22,30 @@
 
 ACPI_MODULE_NAME("platform");
 
+/* Flags for acpi_create_platform_device */
+#define ACPI_PLATFORM_CLK	BIT(0)
+
+/*
+ * The following ACPI IDs are known to be suitable for representing as
+ * platform devices.
+ */
+static const struct acpi_device_id acpi_platform_device_ids[] = {
+
+	{ "PNP0D40" },
+
+	/* Haswell LPSS devices */
+	{ "INT33C0", ACPI_PLATFORM_CLK },
+	{ "INT33C1", ACPI_PLATFORM_CLK },
+	{ "INT33C2", ACPI_PLATFORM_CLK },
+	{ "INT33C3", ACPI_PLATFORM_CLK },
+	{ "INT33C4", ACPI_PLATFORM_CLK },
+	{ "INT33C5", ACPI_PLATFORM_CLK },
+	{ "INT33C6", ACPI_PLATFORM_CLK },
+	{ "INT33C7", ACPI_PLATFORM_CLK },
+
+	{ }
+};
+
 static int acpi_create_platform_clks(struct acpi_device *adev)
 {
 	static struct platform_device *pdev;
@@ -39,8 +63,7 @@ static int acpi_create_platform_clks(struct acpi_device *adev)
 /**
  * acpi_create_platform_device - Create platform device for ACPI device node
  * @adev: ACPI device node to create a platform device for.
- * @flags: ACPI_PLATFORM_* flags that affect the creation of the platform
- *	   devices.
+ * @id: ACPI device ID used to match @adev.
  *
  * Check if the given @adev can be represented as a platform device and, if
  * that's the case, create and register a platform device, populate its common
@@ -48,9 +71,10 @@ static int acpi_create_platform_clks(struct acpi_device *adev)
  *
  * Name of the platform device will be the same as @adev's.
  */
-struct platform_device *acpi_create_platform_device(struct acpi_device *adev,
-						    unsigned long flags)
+static int acpi_create_platform_device(struct acpi_device *adev,
+				       const struct acpi_device_id *id)
 {
+	unsigned long flags = id->driver_data;
 	struct platform_device *pdev = NULL;
 	struct acpi_device *acpi_parent;
 	struct platform_device_info pdevinfo;
@@ -59,25 +83,28 @@ struct platform_device *acpi_create_platform_device(struct acpi_device *adev,
 	struct resource *resources;
 	int count;
 
-	if ((flags & ACPI_PLATFORM_CLK) && acpi_create_platform_clks(adev)) {
-		dev_err(&adev->dev, "failed to create clocks\n");
-		return NULL;
+	if (flags & ACPI_PLATFORM_CLK) {
+		int ret = acpi_create_platform_clks(adev);
+		if (ret) {
+			dev_err(&adev->dev, "failed to create clocks\n");
+			return ret;
+		}
 	}
 
 	/* If the ACPI node already has a physical device attached, skip it. */
 	if (adev->physical_node_count)
-		return NULL;
+		return 0;
 
 	INIT_LIST_HEAD(&resource_list);
 	count = acpi_dev_get_resources(adev, &resource_list, NULL, NULL);
 	if (count <= 0)
-		return NULL;
+		return 0;
 
 	resources = kmalloc(count * sizeof(struct resource), GFP_KERNEL);
 	if (!resources) {
 		dev_err(&adev->dev, "No memory for resources\n");
 		acpi_dev_free_resource_list(&resource_list);
-		return NULL;
+		return -ENOMEM;
 	}
 	count = 0;
 	list_for_each_entry(rentry, &resource_list, node)
@@ -123,5 +150,15 @@ struct platform_device *acpi_create_platform_device(struct acpi_device *adev,
 	}
 
 	kfree(resources);
-	return pdev;
+	return 1;
+}
+
+static struct acpi_scan_handler platform_handler = {
+	.ids = acpi_platform_device_ids,
+	.attach = acpi_create_platform_device,
+};
+
+void __init acpi_platform_init(void)
+{
+	acpi_scan_add_handler(&platform_handler);
 }
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index e5a65217e480..0d1397dc7003 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -27,6 +27,7 @@ int init_acpi_device_notify(void);
 int acpi_scan_init(void);
 void acpi_pci_root_init(void);
 void acpi_pci_link_init(void);
+void acpi_platform_init(void);
 int acpi_sysfs_init(void);
 void acpi_csrt_init(void);
 
@@ -119,10 +120,4 @@ static inline void suspend_nvs_restore(void) {}
   -------------------------------------------------------------------------- */
 struct platform_device;
 
-/* Flags for acpi_create_platform_device */
-#define ACPI_PLATFORM_CLK	BIT(0)
-
-struct platform_device *acpi_create_platform_device(struct acpi_device *adev,
-						    unsigned long flags);
-
 #endif /* _ACPI_INTERNAL_H_ */
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index c2821699bc49..a849d2430dff 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -29,27 +29,6 @@ extern struct acpi_device *acpi_root;
 
 static const char *dummy_hid = "device";
 
-/*
- * The following ACPI IDs are known to be suitable for representing as
- * platform devices.
- */
-static const struct acpi_device_id acpi_platform_device_ids[] = {
-
-	{ "PNP0D40" },
-
-	/* Haswell LPSS devices */
-	{ "INT33C0", ACPI_PLATFORM_CLK },
-	{ "INT33C1", ACPI_PLATFORM_CLK },
-	{ "INT33C2", ACPI_PLATFORM_CLK },
-	{ "INT33C3", ACPI_PLATFORM_CLK },
-	{ "INT33C4", ACPI_PLATFORM_CLK },
-	{ "INT33C5", ACPI_PLATFORM_CLK },
-	{ "INT33C6", ACPI_PLATFORM_CLK },
-	{ "INT33C7", ACPI_PLATFORM_CLK },
-
-	{ }
-};
-
 static LIST_HEAD(acpi_device_list);
 static LIST_HEAD(acpi_bus_id_list);
 static DEFINE_MUTEX(acpi_scan_lock);
@@ -1606,7 +1585,6 @@ static int acpi_scan_attach_handler(struct acpi_device *device)
 static acpi_status acpi_bus_device_attach(acpi_handle handle, u32 lvl_not_used,
 					  void *not_used, void **ret_not_used)
 {
-	const struct acpi_device_id *id;
 	struct acpi_device *device;
 	unsigned long long sta_not_used;
 	int ret;
@@ -1621,13 +1599,6 @@ static acpi_status acpi_bus_device_attach(acpi_handle handle, u32 lvl_not_used,
 	if (acpi_bus_get_device(handle, &device))
 		return AE_CTRL_DEPTH;
 
-	id = __acpi_match_device(device, acpi_platform_device_ids);
-	if (id) {
-		/* This is a known good platform device. */
-		acpi_create_platform_device(device, id->driver_data);
-		return AE_OK;
-	}
-
 	ret = acpi_scan_attach_handler(device);
 	if (ret)
 		return ret > 0 ? AE_OK : AE_CTRL_DEPTH;
@@ -1775,6 +1746,7 @@ int __init acpi_scan_init(void)
 
 	acpi_pci_root_init();
 	acpi_pci_link_init();
+	acpi_platform_init();
 	acpi_csrt_init();
 
 	/*
-- 
cgit v1.2.3


From 0613e1f7fd98a0cef2a7add1368a87cdd86a1106 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 31 Jan 2013 20:54:05 +0100
Subject: ACPI / scan: Fix acpi_bus_get_device() check in acpi_match_device()

Since acpi_bus_get_device() returns int and not acpi_status, change
acpi_match_device() so that it doesn't apply ACPI_FAILURE() to the
return value of acpi_bus_get_device().

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
---
 drivers/acpi/scan.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 43754655c156..a4224727f09c 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -444,9 +444,9 @@ const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
 					       const struct device *dev)
 {
 	struct acpi_device *adev;
+	acpi_handle handle = ACPI_HANDLE(dev);
 
-	if (!ids || !ACPI_HANDLE(dev)
-	    || ACPI_FAILURE(acpi_bus_get_device(ACPI_HANDLE(dev), &adev)))
+	if (!ids || !handle || acpi_bus_get_device(handle, &adev))
 		return NULL;
 
 	return __acpi_match_device(adev, ids);
-- 
cgit v1.2.3


From 456de893ea1a693dc266c5464a6d857bfed0875f Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 31 Jan 2013 20:57:40 +0100
Subject: ACPI / scan: Clean up acpi_bus_get_parent()

Make acpi_bus_get_parent() more straightforward and remove an
unnecessary local variable ret from it.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
---
 drivers/acpi/scan.c | 16 +++++-----------
 1 file changed, 5 insertions(+), 11 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index a849d2430dff..360f1338749b 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -871,29 +871,23 @@ EXPORT_SYMBOL(acpi_bus_unregister_driver);
    -------------------------------------------------------------------------- */
 static struct acpi_device *acpi_bus_get_parent(acpi_handle handle)
 {
+	struct acpi_device *device = NULL;
 	acpi_status status;
-	int ret;
-	struct acpi_device *device;
 
 	/*
 	 * Fixed hardware devices do not appear in the namespace and do not
 	 * have handles, but we fabricate acpi_devices for them, so we have
 	 * to deal with them specially.
 	 */
-	if (handle == NULL)
+	if (!handle)
 		return acpi_root;
 
 	do {
 		status = acpi_get_parent(handle, &handle);
-		if (status == AE_NULL_ENTRY)
-			return NULL;
 		if (ACPI_FAILURE(status))
-			return acpi_root;
-
-		ret = acpi_bus_get_device(handle, &device);
-		if (ret == 0)
-			return device;
-	} while (1);
+			return status == AE_NULL_ENTRY ? NULL : acpi_root;
+	} while (acpi_bus_get_device(handle, &device));
+	return device;
 }
 
 acpi_status
-- 
cgit v1.2.3


From dde3bb4159dfd872a755922b6a22e005e78389b6 Mon Sep 17 00:00:00 2001
From: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Date: Thu, 31 Jan 2013 03:22:14 +0000
Subject: ACPI / PM: Fix acpi_bus_get_device() check in
 drivers/acpi/device_pm.c

acpi_bus_get_device() returns int not acpi_status.

The patch change not to apply ACPI_FAILURE() to the return value of
acpi_bus_get_device().

Signed-off-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/device_pm.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c
index 4cbc9505b365..3ef075b71870 100644
--- a/drivers/acpi/device_pm.c
+++ b/drivers/acpi/device_pm.c
@@ -497,7 +497,7 @@ int acpi_pm_device_sleep_state(struct device *dev, int *d_min_p, int d_max_in)
 	acpi_handle handle = DEVICE_ACPI_HANDLE(dev);
 	struct acpi_device *adev;
 
-	if (!handle || ACPI_FAILURE(acpi_bus_get_device(handle, &adev))) {
+	if (!handle || acpi_bus_get_device(handle, &adev)) {
 		dev_dbg(dev, "ACPI handle without context in %s!\n", __func__);
 		return -ENODEV;
 	}
@@ -574,7 +574,7 @@ int acpi_pm_device_run_wake(struct device *phys_dev, bool enable)
 		return -EINVAL;
 
 	handle = DEVICE_ACPI_HANDLE(phys_dev);
-	if (!handle || ACPI_FAILURE(acpi_bus_get_device(handle, &adev))) {
+	if (!handle || acpi_bus_get_device(handle, &adev)) {
 		dev_dbg(phys_dev, "ACPI handle without context in %s!\n",
 			__func__);
 		return -ENODEV;
@@ -618,7 +618,7 @@ int acpi_pm_device_sleep_wake(struct device *dev, bool enable)
 		return -EINVAL;
 
 	handle = DEVICE_ACPI_HANDLE(dev);
-	if (!handle || ACPI_FAILURE(acpi_bus_get_device(handle, &adev))) {
+	if (!handle || acpi_bus_get_device(handle, &adev)) {
 		dev_dbg(dev, "ACPI handle without context in %s!\n", __func__);
 		return -ENODEV;
 	}
-- 
cgit v1.2.3


From b3785492268f9f3cdaa9722facb84b266dcf8bf6 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Fri, 1 Feb 2013 23:43:02 +0100
Subject: ACPI / PM: Do not power manage devices in unknown initial states

In general, for ACPI device power management to work, the initial
power states of devices must be known (otherwise, we wouldn't be able
to keep track of power resources, for example).  Hence, if it is
impossible to determine the initial ACPI power states of some
devices, they can't be regarded as power-manageable using ACPI.

For this reason, modify acpi_bus_get_power_flags() to clear the
power_manageable flag if acpi_bus_init_power() fails and add some
extra fallback code to acpi_bus_init_power() to cover broken
BIOSes that provide _PS0/_PS3 without _PSC for some devices.

Verified to work on my HP nx6325 that has this problem.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Peter Wu <lekensteyn@gmail.com>
---
 drivers/acpi/device_pm.c | 6 ++++++
 drivers/acpi/scan.c      | 5 ++++-
 2 files changed, 10 insertions(+), 1 deletion(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c
index 3ef075b71870..164d609d7c9e 100644
--- a/drivers/acpi/device_pm.c
+++ b/drivers/acpi/device_pm.c
@@ -330,6 +330,12 @@ int acpi_bus_init_power(struct acpi_device *device)
 		result = acpi_dev_pm_explicit_set(device, state);
 		if (result)
 			return result;
+	} else if (state == ACPI_STATE_UNKNOWN) {
+		/* No power resources and missing _PSC? Try to force D0. */
+		state = ACPI_STATE_D0;
+		result = acpi_dev_pm_explicit_set(device, state);
+		if (result)
+			return result;
 	}
 	device->power.state = state;
 	return 0;
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 9801837876b7..f75f25c2e455 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1180,7 +1180,10 @@ static void acpi_bus_get_power_flags(struct acpi_device *device)
 			device->power.flags.power_resources)
 		device->power.states[ACPI_STATE_D3_COLD].flags.os_accessible = 1;
 
-	acpi_bus_init_power(device);
+	if (acpi_bus_init_power(device)) {
+		acpi_free_power_resources_lists(device);
+		device->flags.power_manageable = 0;
+	}
 }
 
 static void acpi_bus_get_flags(struct acpi_device *device)
-- 
cgit v1.2.3


From 02df7349d29f99ede4c97504ab67e3082c95c15e Mon Sep 17 00:00:00 2001
From: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Date: Thu, 31 Jan 2013 03:23:53 +0000
Subject: ACPI / dock: Fix acpi_bus_get_device() check in drivers/acpi/dock.c

acpi_bus_get_device() returns int not acpi_status.

The patch change not to apply ACPI_SUCCESS() to the return value of
acpi_bus_get_device().

Signed-off-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/dock.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c
index 78648f811049..68d720af71ed 100644
--- a/drivers/acpi/dock.c
+++ b/drivers/acpi/dock.c
@@ -825,7 +825,7 @@ static ssize_t show_docked(struct device *dev,
 
 	struct dock_station *dock_station = dev->platform_data;
 
-	if (ACPI_SUCCESS(acpi_bus_get_device(dock_station->handle, &tmp)))
+	if (!acpi_bus_get_device(dock_station->handle, &tmp))
 		return snprintf(buf, PAGE_SIZE, "1\n");
 	return snprintf(buf, PAGE_SIZE, "0\n");
 }
-- 
cgit v1.2.3


From 511d5c4212948fe55035b8fed61ac0e125af5a05 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Sun, 3 Feb 2013 14:57:32 +0100
Subject: ACPI / PM: Handle missing _PSC in acpi_bus_update_power()

If _PS0 is defined for an ACPI device node, but _PSC isn't and
the device node doesn't use power resources for power management,
acpi_bus_update_power() will fail to update the power state of it,
because acpi_device_get_power() returns ACPI_STATE_UNKNOWN in that
case.

To handle that situation make acpi_bus_update_power() follow
acpi_bus_init_power() and try to force the given device node into
power state D0.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/device_pm.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c
index 164d609d7c9e..dd314ef9bff1 100644
--- a/drivers/acpi/device_pm.c
+++ b/drivers/acpi/device_pm.c
@@ -355,6 +355,9 @@ int acpi_bus_update_power(acpi_handle handle, int *state_p)
 	if (result)
 		return result;
 
+	if (state == ACPI_STATE_UNKNOWN)
+		state = ACPI_STATE_D0;
+
 	result = acpi_device_set_power(device, state);
 	if (!result && state_p)
 		*state_p = state;
-- 
cgit v1.2.3


From 66f2fda93b67fa744d406e6dcf443f67bac204b6 Mon Sep 17 00:00:00 2001
From: Joseph Salisbury <joseph.salisbury@canonical.com>
Date: Tue, 5 Feb 2013 00:16:29 +0000
Subject: ACPI: Add DMI entry for Sony VGN-FW41E_H

This patch adds a quirk to allow the Sony VGN-FW41E_H to suspend/resume
properly.

References: http://bugs.launchpad.net/bugs/1113547
Signed-off-by: Joseph Salisbury <joseph.salisbury@canonical.com>
Cc: All <stable@vger.kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/sleep.c | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 2fcc67d34b11..df8505147b27 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -177,6 +177,14 @@ static struct dmi_system_id __initdata acpisleep_dmi_table[] = {
 	},
 	{
 	.callback = init_nvs_nosave,
+	.ident = "Sony Vaio VGN-FW41E_H",
+	.matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FW41E_H"),
+		},
+	},
+	{
+	.callback = init_nvs_nosave,
 	.ident = "Sony Vaio VGN-FW21E",
 	.matches = {
 		DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
-- 
cgit v1.2.3


From 41cdb0efc42ed3c10f56e0740db28eff086af62b Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Mon, 4 Feb 2013 22:44:40 +0000
Subject: ACPI / idle: remove unused definition

The different definitions are not used anywhere in the code.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Len Brown <len.brown@intel.com>
---
 drivers/acpi/processor_idle.c | 4 ----
 1 file changed, 4 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index ed9a1cc690be..5cb5f247d2be 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -64,10 +64,6 @@
 #define ACPI_PROCESSOR_CLASS            "processor"
 #define _COMPONENT              ACPI_PROCESSOR_COMPONENT
 ACPI_MODULE_NAME("processor_idle");
-#define PM_TIMER_TICK_NS		(1000000000ULL/PM_TIMER_FREQUENCY)
-#define C2_OVERHEAD			1	/* 1us */
-#define C3_OVERHEAD			1	/* 1us */
-#define PM_TIMER_TICKS_TO_US(p)		(((p) * 1000)/(PM_TIMER_FREQUENCY/1000))
 
 static unsigned int max_cstate __read_mostly = ACPI_PROCESSOR_MAX_POWER;
 module_param(max_cstate, uint, 0000);
-- 
cgit v1.2.3


From e2668fb53ffd3e01c3116f65a9047a25e4c66399 Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Mon, 4 Feb 2013 22:44:41 +0000
Subject: ACPI / idle : remove pointless headers

These different headers are not needed.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Len Brown <len.brown@intel.com>
---
 drivers/acpi/processor_idle.c | 13 +------------
 1 file changed, 1 insertion(+), 12 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 5cb5f247d2be..82626e9abe78 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -28,19 +28,12 @@
  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  */
 
-#include <linux/kernel.h>
 #include <linux/module.h>
-#include <linux/init.h>
-#include <linux/cpufreq.h>
-#include <linux/slab.h>
 #include <linux/acpi.h>
 #include <linux/dmi.h>
-#include <linux/moduleparam.h>
-#include <linux/sched.h>	/* need_resched() */
-#include <linux/pm_qos.h>
+#include <linux/sched.h>       /* need_resched() */
 #include <linux/clockchips.h>
 #include <linux/cpuidle.h>
-#include <linux/irqflags.h>
 
 /*
  * Include the apic definitions for x86 to have the APIC timer related defines
@@ -52,12 +45,8 @@
 #include <asm/apic.h>
 #endif
 
-#include <asm/io.h>
-#include <asm/uaccess.h>
-
 #include <acpi/acpi_bus.h>
 #include <acpi/processor.h>
-#include <asm/processor.h>
 
 #define PREFIX "ACPI: "
 
-- 
cgit v1.2.3


From 6ef0f086beafb3c7d81cd3de81d886d105ea25b2 Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Mon, 4 Feb 2013 22:44:42 +0000
Subject: ACPI / idle: pass the cpuidle_device parameter

The cpuidle_device is retrieved in the function by using directly
the global variable. But the caller of this function already have
this device and it can be passed as a parameter. That is one small
step to encapsulate the code more.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Len Brown <len.brown@intel.com>
---
 drivers/acpi/processor_idle.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 82626e9abe78..68370659df68 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -928,13 +928,14 @@ struct cpuidle_driver acpi_idle_driver = {
  * device i.e. per-cpu data
  *
  * @pr: the ACPI processor
+ * @dev : the cpuidle device
  */
-static int acpi_processor_setup_cpuidle_cx(struct acpi_processor *pr)
+static int acpi_processor_setup_cpuidle_cx(struct acpi_processor *pr,
+					   struct cpuidle_device *dev)
 {
 	int i, count = CPUIDLE_DRIVER_STATE_START;
 	struct acpi_processor_cx *cx;
 	struct cpuidle_state_usage *state_usage;
-	struct cpuidle_device *dev = per_cpu(acpi_cpuidle_device, pr->id);
 
 	if (!pr->flags.power_setup_done)
 		return -EINVAL;
@@ -1089,7 +1090,7 @@ int acpi_processor_hotplug(struct acpi_processor *pr)
 	cpuidle_disable_device(dev);
 	acpi_processor_get_power_info(pr);
 	if (pr->flags.power) {
-		acpi_processor_setup_cpuidle_cx(pr);
+		acpi_processor_setup_cpuidle_cx(pr, dev);
 		ret = cpuidle_enable_device(dev);
 	}
 	cpuidle_resume_and_unlock();
@@ -1147,8 +1148,8 @@ int acpi_processor_cst_has_changed(struct acpi_processor *pr)
 				continue;
 			acpi_processor_get_power_info(_pr);
 			if (_pr->flags.power) {
-				acpi_processor_setup_cpuidle_cx(_pr);
 				dev = per_cpu(acpi_cpuidle_device, cpu);
+				acpi_processor_setup_cpuidle_cx(_pr, dev);
 				cpuidle_enable_device(dev);
 			}
 		}
@@ -1217,7 +1218,7 @@ int __cpuinit acpi_processor_power_init(struct acpi_processor *pr)
 			return -ENOMEM;
 		per_cpu(acpi_cpuidle_device, pr->id) = dev;
 
-		acpi_processor_setup_cpuidle_cx(pr);
+		acpi_processor_setup_cpuidle_cx(pr, dev);
 
 		/* Register per-cpu cpuidle_device. Cpuidle driver
 		 * must already be registered before registering device
-- 
cgit v1.2.3


From ac3ebafa81af76d65e4fb45c6388f08e90ddcc6d Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Mon, 4 Feb 2013 22:44:43 +0000
Subject: ACPI / idle: remove usage of the statedata

Len Brown sent a patch to remove this field in the intel_idle driver.
The other user of this field is the davinci cpuidle driver and a
patch has been sent to remove the usage of it.

This patch removes the last user of this field.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Len Brown <len.brown@intel.com>
---
 drivers/acpi/processor_idle.c | 19 +++++++------------
 1 file changed, 7 insertions(+), 12 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 68370659df68..8b433cb08a33 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -66,6 +66,8 @@ module_param(latency_factor, uint, 0644);
 
 static DEFINE_PER_CPU(struct cpuidle_device *, acpi_cpuidle_device);
 
+static struct acpi_processor_cx *acpi_cstate[CPUIDLE_STATE_MAX];
+
 static int disabled_by_idle_boot_param(void)
 {
 	return boot_option_idle_override == IDLE_POLL ||
@@ -721,8 +723,7 @@ static int acpi_idle_enter_c1(struct cpuidle_device *dev,
 		struct cpuidle_driver *drv, int index)
 {
 	struct acpi_processor *pr;
-	struct cpuidle_state_usage *state_usage = &dev->states_usage[index];
-	struct acpi_processor_cx *cx = cpuidle_get_statedata(state_usage);
+	struct acpi_processor_cx *cx = acpi_cstate[index];
 
 	pr = __this_cpu_read(processors);
 
@@ -745,8 +746,7 @@ static int acpi_idle_enter_c1(struct cpuidle_device *dev,
  */
 static int acpi_idle_play_dead(struct cpuidle_device *dev, int index)
 {
-	struct cpuidle_state_usage *state_usage = &dev->states_usage[index];
-	struct acpi_processor_cx *cx = cpuidle_get_statedata(state_usage);
+	struct acpi_processor_cx *cx = acpi_cstate[index];
 
 	ACPI_FLUSH_CPU_CACHE();
 
@@ -776,8 +776,7 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev,
 		struct cpuidle_driver *drv, int index)
 {
 	struct acpi_processor *pr;
-	struct cpuidle_state_usage *state_usage = &dev->states_usage[index];
-	struct acpi_processor_cx *cx = cpuidle_get_statedata(state_usage);
+	struct acpi_processor_cx *cx = acpi_cstate[index];
 
 	pr = __this_cpu_read(processors);
 
@@ -835,8 +834,7 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev,
 		struct cpuidle_driver *drv, int index)
 {
 	struct acpi_processor *pr;
-	struct cpuidle_state_usage *state_usage = &dev->states_usage[index];
-	struct acpi_processor_cx *cx = cpuidle_get_statedata(state_usage);
+	struct acpi_processor_cx *cx = acpi_cstate[index];
 
 	pr = __this_cpu_read(processors);
 
@@ -935,7 +933,6 @@ static int acpi_processor_setup_cpuidle_cx(struct acpi_processor *pr,
 {
 	int i, count = CPUIDLE_DRIVER_STATE_START;
 	struct acpi_processor_cx *cx;
-	struct cpuidle_state_usage *state_usage;
 
 	if (!pr->flags.power_setup_done)
 		return -EINVAL;
@@ -954,7 +951,6 @@ static int acpi_processor_setup_cpuidle_cx(struct acpi_processor *pr,
 
 	for (i = 1; i < ACPI_PROCESSOR_MAX_POWER && i <= max_cstate; i++) {
 		cx = &pr->power.states[i];
-		state_usage = &dev->states_usage[count];
 
 		if (!cx->valid)
 			continue;
@@ -965,8 +961,7 @@ static int acpi_processor_setup_cpuidle_cx(struct acpi_processor *pr,
 		    !(acpi_gbl_FADT.flags & ACPI_FADT_C2_MP_SUPPORTED))
 			continue;
 #endif
-
-		cpuidle_set_statedata(state_usage, cx);
+		acpi_cstate[count] = cx;
 
 		count++;
 		if (count == CPUIDLE_STATE_MAX)
-- 
cgit v1.2.3


From 89a22dadb8810983868f5bbbc5530b27bf714a60 Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Mon, 4 Feb 2013 07:10:10 +0000
Subject: ACPI: enable ACPI SCI during suspend

Enable ACPI SCI during suspend so that SCI can be used
as wake events for PM_SUSPEND_FREEZE.

For S3/S4 transition,
We disable all GPEs in suspend_ops->prepare_late() to
fix a problem that GPEs may trigger SCI  before
arch_suspend_disable_irqs() is run.
So it is safe to leave the SCI enabled until
arch_suspend_irq_disable() is run.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/osl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 3ff267861541..3adeb10ff3ec 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -787,7 +787,7 @@ acpi_os_install_interrupt_handler(u32 gsi, acpi_osd_handler handler,
 
 	acpi_irq_handler = handler;
 	acpi_irq_context = context;
-	if (request_irq(irq, acpi_irq, IRQF_SHARED, "acpi", acpi_irq)) {
+	if (request_irq(irq, acpi_irq, IRQF_SHARED | IRQF_NO_SUSPEND, "acpi", acpi_irq)) {
 		printk(KERN_ERR PREFIX "SCI (IRQ%d) allocation failed\n", irq);
 		acpi_irq_handler = NULL;
 		return AE_NOT_ACQUIRED;
-- 
cgit v1.2.3


From 69fb3676df3329a7142803bb3502fa59dc0db2e3 Mon Sep 17 00:00:00 2001
From: Len Brown <len.brown@intel.com>
Date: Sun, 10 Feb 2013 01:38:39 -0500
Subject: x86 idle: remove mwait_idle() and "idle=mwait" cmdline param

mwait_idle() is a C1-only idle loop intended to be more efficient
than HLT, starting on Pentium-4 HT-enabled processors.

But mwait_idle() has been replaced by the more general
mwait_idle_with_hints(), which handles both C1 and deeper C-states.
ACPI processor_idle and intel_idle use only mwait_idle_with_hints(),
and no longer use mwait_idle().

Here we simplify the x86 native idle code by removing mwait_idle(),
and the "idle=mwait" bootparam used to invoke it.

Since Linux 3.0 there has been a boot-time warning when "idle=mwait"
was invoked saying it would be removed in 2012.  This removal
was also noted in the (now removed:-) feature-removal-schedule.txt.

After this change, kernels configured with
(CONFIG_ACPI=n && CONFIG_INTEL_IDLE=n) when run on hardware
that supports MWAIT will simply use HLT.  If MWAIT is desired
on those systems, cpuidle and the cpuidle drivers above
can be enabled.

Signed-off-by: Len Brown <len.brown@intel.com>
Cc: x86@kernel.org
---
 drivers/acpi/processor_idle.c | 1 -
 1 file changed, 1 deletion(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index ed9a1cc690be..52a5e3a4cdc3 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -84,7 +84,6 @@ static DEFINE_PER_CPU(struct cpuidle_device *, acpi_cpuidle_device);
 static int disabled_by_idle_boot_param(void)
 {
 	return boot_option_idle_override == IDLE_POLL ||
-		boot_option_idle_override == IDLE_FORCE_MWAIT ||
 		boot_option_idle_override == IDLE_HALT;
 }
 
-- 
cgit v1.2.3


From 73ce873a898ff385cd18e9068d38a35ff48e7585 Mon Sep 17 00:00:00 2001
From: Jiang Liu <jiang.liu@huawei.com>
Date: Sun, 3 Feb 2013 14:55:45 +0100
Subject: ACPI / PCI: pci_slot: replace printk(KERN_xxx) with pr_xxx()

Trivial changes to replace printk(KERN_xxx) with pr_xxx().

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/pci_slot.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/pci_slot.c b/drivers/acpi/pci_slot.c
index d22585f21aeb..2c630c006c2f 100644
--- a/drivers/acpi/pci_slot.c
+++ b/drivers/acpi/pci_slot.c
@@ -50,13 +50,12 @@ module_param(debug, bool, 0644);
 ACPI_MODULE_NAME("pci_slot");
 
 #define MY_NAME "pci_slot"
-#define err(format, arg...) printk(KERN_ERR "%s: " format , MY_NAME , ## arg)
-#define info(format, arg...) printk(KERN_INFO "%s: " format , MY_NAME , ## arg)
+#define err(format, arg...) pr_err("%s: " format , MY_NAME , ## arg)
+#define info(format, arg...) pr_info("%s: " format , MY_NAME , ## arg)
 #define dbg(format, arg...)					\
 	do {							\
 		if (debug)					\
-			printk(KERN_DEBUG "%s: " format,	\
-				MY_NAME , ## arg);		\
+			pr_debug("%s: " format,	MY_NAME , ## arg); \
 	} while (0)
 
 #define SLOT_NAME_SIZE 21		/* Inspired by #define in acpiphp.h */
-- 
cgit v1.2.3


From 87b85b3c8a4ac286d41a1c6419014b7562e4663b Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Wed, 6 Feb 2013 13:05:22 +0100
Subject: ACPI / scan: Follow priorities of IDs when matching scan handlers

The IDs of ACPI device nodes stored in their pnp.ids member arrays
are sorted by decreasing priority (i.e. the highest-priority ID is
the first entry).  This means that when matching scan handlers to
device nodes, the namespace scanning code should walk the list of
scan handlers for each device node ID instead of walking the list
of device node IDs for each handler (the latter causes the first
handler matching any of the device node IDs to be chosen, although
there may be another handler matching an ID of a higher priority
which should be preferred).  Make the code follow this observation.

This change has been suggested and justified by Toshi Kani.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Toshi Kani <toshi.kani@hp.com>
---
 drivers/acpi/scan.c | 40 ++++++++++++++++++++++++++++------------
 1 file changed, 28 insertions(+), 12 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 360f1338749b..688b7f7c23dd 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1553,26 +1553,42 @@ static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl_not_used,
 	return AE_OK;
 }
 
-static int acpi_scan_attach_handler(struct acpi_device *device)
+static int acpi_scan_do_attach_handler(struct acpi_device *device, char *id)
 {
 	struct acpi_scan_handler *handler;
-	int ret = 0;
 
 	list_for_each_entry(handler, &acpi_scan_handlers_list, list_node) {
-		const struct acpi_device_id *id;
+		const struct acpi_device_id *devid;
 
-		id = __acpi_match_device(device, handler->ids);
-		if (!id)
-			continue;
+		for (devid = handler->ids; devid->id[0]; devid++) {
+			int ret;
 
-		ret = handler->attach(device, id);
-		if (ret > 0) {
-			device->handler = handler;
-			break;
-		} else if (ret < 0) {
-			break;
+			if (strcmp((char *)devid->id, id))
+				continue;
+
+			ret = handler->attach(device, devid);
+			if (ret > 0) {
+				device->handler = handler;
+				return ret;
+			} else if (ret < 0) {
+				return ret;
+			}
 		}
 	}
+	return 0;
+}
+
+static int acpi_scan_attach_handler(struct acpi_device *device)
+{
+	struct acpi_hardware_id *hwid;
+	int ret = 0;
+
+	list_for_each_entry(hwid, &device->pnp.ids, list) {
+		ret = acpi_scan_do_attach_handler(device, hwid->id);
+		if (ret)
+			break;
+
+	}
 	return ret;
 }
 
-- 
cgit v1.2.3


From ce7685ad764f070a9234df6a12a17eb92471d126 Mon Sep 17 00:00:00 2001
From: Toshi Kani <toshi.kani@hp.com>
Date: Thu, 7 Feb 2013 12:50:53 +0100
Subject: ACPI: sysfs eject support for ACPI scan handlers

Changed sysfs eject, acpi_eject_store(), so that it doesn't return
error codes for devices nodes with ACPI scan handlers attached and
no ACPI drivers.

[rjw: Changelog]
Signed-off-by: Toshi Kani <toshi.kani@hp.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/scan.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 688b7f7c23dd..95547efcffe0 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -203,7 +203,7 @@ acpi_eject_store(struct device *d, struct device_attribute *attr,
 		return -EINVAL;
 	}
 #ifndef FORCE_EJECT
-	if (acpi_device->driver == NULL) {
+	if (!acpi_device->driver && !acpi_device->handler) {
 		ret = -ENODEV;
 		goto err;
 	}
-- 
cgit v1.2.3


From 5f27ee8e1261e47ec2e9dbebf17e87e55f568d75 Mon Sep 17 00:00:00 2001
From: Toshi Kani <toshi.kani@hp.com>
Date: Thu, 7 Feb 2013 21:19:13 +0000
Subject: ACPI: Unbind ACPI drv when probe failed

When acpi_device_install_notify_handler() failed in acpi_device_probe(),
it calls acpi_drv->ops.remove() and fails the probe.  However, the ACPI
driver is left bound to the acpi_device.  Fix it by clearing the driver
and driver_data fields.

Signed-off-by: Toshi Kani <toshi.kani@hp.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/scan.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 95547efcffe0..bf6e2c26f52d 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -627,6 +627,8 @@ static int acpi_device_probe(struct device * dev)
 			if (ret) {
 				if (acpi_drv->ops.remove)
 					acpi_drv->ops.remove(acpi_dev);
+				acpi_dev->driver = NULL;
+				acpi_dev->driver_data = NULL;
 				return ret;
 			}
 		}
-- 
cgit v1.2.3


From 38475b3be1517a16d263b0b04dae862bf7027d48 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Fri, 8 Feb 2013 23:52:23 +0100
Subject: ACPI / scan: Remove useless #ifndef from acpi_eject_store()

Since the FORCE_EJECT symbol is never defined, the
#ifndef FORCE_EJECT in acpi_eject_store() is always true, so drop it.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Tested-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Reviewed-by: Toshi Kani <toshi.kani@hp.com>
Tested-by: Toshi Kani <toshi.kani@hp.com>
---
 drivers/acpi/scan.c | 2 --
 1 file changed, 2 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index bf6e2c26f52d..5bc2641fba8a 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -202,12 +202,10 @@ acpi_eject_store(struct device *d, struct device_attribute *attr,
 	if ((!count) || (buf[0] != '1')) {
 		return -EINVAL;
 	}
-#ifndef FORCE_EJECT
 	if (!acpi_device->driver && !acpi_device->handler) {
 		ret = -ENODEV;
 		goto err;
 	}
-#endif
 	status = acpi_get_type(acpi_device->handle, &type);
 	if (ACPI_FAILURE(status) || (!acpi_device->flags.ejectable)) {
 		ret = -ENODEV;
-- 
cgit v1.2.3


From 737f1a9f808280c481681b1f46254fd67023ec2f Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Fri, 8 Feb 2013 23:52:39 +0100
Subject: ACPI / scan: Make container driver use struct acpi_scan_handler

Make the ACPI container driver use struct acpi_scan_handler for
representing the object used to initialize ACPI containers and remove
the ACPI driver structure used previously and the data structures
created by it, since in fact they were not used for any purpose.

This simplifies the code and reduces the kernel's memory footprint by
avoiding the registration of a struct device_driver object with the
driver core and creation of its sysfs directory which is unnecessary.

In addition to that, make the namespace walk callback used for
installing the notify handlers for ACPI containers more
straightforward.

This change includes fixes from Toshi Kani.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Tested-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Reviewed-by: Toshi Kani <toshi.kani@hp.com>
Tested-by: Toshi Kani <toshi.kani@hp.com>
---
 drivers/acpi/Kconfig     |   2 +-
 drivers/acpi/container.c | 167 ++++++++++-------------------------------------
 drivers/acpi/internal.h  |   5 ++
 drivers/acpi/scan.c      |   1 +
 4 files changed, 43 insertions(+), 132 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 38c5078da11d..78105b3a5262 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -337,7 +337,7 @@ config X86_PM_TIMER
 	  systems require this timer. 
 
 config ACPI_CONTAINER
-	tristate "Container and Module Devices (EXPERIMENTAL)"
+	bool "Container and Module Devices (EXPERIMENTAL)"
 	depends on EXPERIMENTAL
 	default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU || ACPI_HOTPLUG_IO)
 	help
diff --git a/drivers/acpi/container.c b/drivers/acpi/container.c
index cc0bf4613e0d..9053e86e9904 100644
--- a/drivers/acpi/container.c
+++ b/drivers/acpi/container.c
@@ -38,42 +38,31 @@
 
 #define PREFIX "ACPI: "
 
-#define ACPI_CONTAINER_DEVICE_NAME	"ACPI container device"
-#define ACPI_CONTAINER_CLASS		"container"
-
-#define INSTALL_NOTIFY_HANDLER		1
-#define UNINSTALL_NOTIFY_HANDLER	2
-
 #define _COMPONENT			ACPI_CONTAINER_COMPONENT
 ACPI_MODULE_NAME("container");
 
-MODULE_AUTHOR("Anil S Keshavamurthy");
-MODULE_DESCRIPTION("ACPI container driver");
-MODULE_LICENSE("GPL");
-
-static int acpi_container_add(struct acpi_device *device);
-static int acpi_container_remove(struct acpi_device *device);
-
 static const struct acpi_device_id container_device_ids[] = {
 	{"ACPI0004", 0},
 	{"PNP0A05", 0},
 	{"PNP0A06", 0},
 	{"", 0},
 };
-MODULE_DEVICE_TABLE(acpi, container_device_ids);
 
-static struct acpi_driver acpi_container_driver = {
-	.name = "container",
-	.class = ACPI_CONTAINER_CLASS,
+static int container_device_attach(struct acpi_device *device,
+				   const struct acpi_device_id *not_used)
+{
+	/*
+	 * FIXME: This is necessary, so that acpi_eject_store() doesn't return
+	 * -ENODEV for containers.
+	 */
+	return 1;
+}
+
+static struct acpi_scan_handler container_device_handler = {
 	.ids = container_device_ids,
-	.ops = {
-		.add = acpi_container_add,
-		.remove = acpi_container_remove,
-		},
+	.attach = container_device_attach,
 };
 
-/*******************************************************************/
-
 static int is_device_present(acpi_handle handle)
 {
 	acpi_handle temp;
@@ -92,49 +81,6 @@ static int is_device_present(acpi_handle handle)
 	return ((sta & ACPI_STA_DEVICE_PRESENT) == ACPI_STA_DEVICE_PRESENT);
 }
 
-static bool is_container_device(const char *hid)
-{
-	const struct acpi_device_id *container_id;
-
-	for (container_id = container_device_ids;
-	     container_id->id[0]; container_id++) {
-		if (!strcmp((char *)container_id->id, hid))
-			return true;
-	}
-
-	return false;
-}
-
-/*******************************************************************/
-static int acpi_container_add(struct acpi_device *device)
-{
-	struct acpi_container *container;
-
-	container = kzalloc(sizeof(struct acpi_container), GFP_KERNEL);
-	if (!container)
-		return -ENOMEM;
-
-	container->handle = device->handle;
-	strcpy(acpi_device_name(device), ACPI_CONTAINER_DEVICE_NAME);
-	strcpy(acpi_device_class(device), ACPI_CONTAINER_CLASS);
-	device->driver_data = container;
-
-	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device <%s> bid <%s>\n",
-			  acpi_device_name(device), acpi_device_bid(device)));
-
-	return 0;
-}
-
-static int acpi_container_remove(struct acpi_device *device)
-{
-	acpi_status status = AE_OK;
-	struct acpi_container *pc = NULL;
-
-	pc = acpi_driver_data(device);
-	kfree(pc);
-	return status;
-}
-
 static void container_notify_cb(acpi_handle handle, u32 type, void *context)
 {
 	struct acpi_device *device = NULL;
@@ -199,84 +145,43 @@ static void container_notify_cb(acpi_handle handle, u32 type, void *context)
 	return;
 }
 
-static acpi_status
-container_walk_namespace_cb(acpi_handle handle,
-			    u32 lvl, void *context, void **rv)
+static bool is_container(acpi_handle handle)
 {
-	char *hid = NULL;
 	struct acpi_device_info *info;
-	acpi_status status;
-	int *action = context;
-
-	status = acpi_get_object_info(handle, &info);
-	if (ACPI_FAILURE(status)) {
-		return AE_OK;
-	}
+	bool ret = false;
 
-	if (info->valid & ACPI_VALID_HID)
-		hid = info->hardware_id.string;
+	if (ACPI_FAILURE(acpi_get_object_info(handle, &info)))
+		return false;
 
-	if (hid == NULL) {
-		goto end;
-	}
-
-	if (!is_container_device(hid))
-		goto end;
+	if (info->valid & ACPI_VALID_HID) {
+		const struct acpi_device_id *id;
 
-	switch (*action) {
-	case INSTALL_NOTIFY_HANDLER:
-		acpi_install_notify_handler(handle,
-					    ACPI_SYSTEM_NOTIFY,
-					    container_notify_cb, NULL);
-		break;
-	case UNINSTALL_NOTIFY_HANDLER:
-		acpi_remove_notify_handler(handle,
-					   ACPI_SYSTEM_NOTIFY,
-					   container_notify_cb);
-		break;
-	default:
-		break;
+		for (id = container_device_ids; id->id[0]; id++) {
+			ret = !strcmp((char *)id->id, info->hardware_id.string);
+			if (ret)
+				break;
+		}
 	}
-
-      end:
 	kfree(info);
-
-	return AE_OK;
+	return ret;
 }
 
-static int __init acpi_container_init(void)
+static acpi_status acpi_container_register_notify_handler(acpi_handle handle,
+							  u32 lvl, void *ctxt,
+							  void **retv)
 {
-	int result = 0;
-	int action = INSTALL_NOTIFY_HANDLER;
-
-	result = acpi_bus_register_driver(&acpi_container_driver);
-	if (result < 0) {
-		return (result);
-	}
-
-	/* register notify handler to every container device */
-	acpi_walk_namespace(ACPI_TYPE_DEVICE,
-			    ACPI_ROOT_OBJECT,
-			    ACPI_UINT32_MAX,
-			    container_walk_namespace_cb, NULL, &action, NULL);
+	if (is_container(handle))
+		acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY,
+					    container_notify_cb, NULL);
 
-	return (0);
+	return AE_OK;
 }
 
-static void __exit acpi_container_exit(void)
+void __init acpi_container_init(void)
 {
-	int action = UNINSTALL_NOTIFY_HANDLER;
-
-
-	acpi_walk_namespace(ACPI_TYPE_DEVICE,
-			    ACPI_ROOT_OBJECT,
-			    ACPI_UINT32_MAX,
-			    container_walk_namespace_cb, NULL, &action, NULL);
+	acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX,
+			    acpi_container_register_notify_handler, NULL,
+			    NULL, NULL);
 
-	acpi_bus_unregister_driver(&acpi_container_driver);
-
-	return;
+	acpi_scan_add_handler(&container_device_handler);
 }
-
-module_init(acpi_container_init);
-module_exit(acpi_container_exit);
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 0d1397dc7003..79092328cf06 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -30,6 +30,11 @@ void acpi_pci_link_init(void);
 void acpi_platform_init(void);
 int acpi_sysfs_init(void);
 void acpi_csrt_init(void);
+#ifdef CONFIG_ACPI_CONTAINER
+void acpi_container_init(void);
+#else
+static inline void acpi_container_init(void) {}
+#endif
 
 #ifdef CONFIG_DEBUG_FS
 extern struct dentry *acpi_debugfs_dir;
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 5bc2641fba8a..a48b6e92f9f8 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1758,6 +1758,7 @@ int __init acpi_scan_init(void)
 	acpi_pci_link_init();
 	acpi_platform_init();
 	acpi_csrt_init();
+	acpi_container_init();
 
 	/*
 	 * Enumerate devices in the ACPI namespace.
-- 
cgit v1.2.3


From 87d4a4da7353c8582049dab50b880798d88ff9d7 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Sat, 9 Feb 2013 01:08:20 +0100
Subject: ACPI: Drop the container.h header file

The include/acpi/container.h only contains a definition of a
structure that is not used any more, so drop it entirely.

Similar change was proposed earlier by Toshi Kani.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Toshi Kani <toshi.kani@hp.com>
---
 drivers/acpi/container.c | 1 -
 1 file changed, 1 deletion(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/container.c b/drivers/acpi/container.c
index 9053e86e9904..4cc2937cc022 100644
--- a/drivers/acpi/container.c
+++ b/drivers/acpi/container.c
@@ -34,7 +34,6 @@
 #include <linux/acpi.h>
 #include <acpi/acpi_bus.h>
 #include <acpi/acpi_drivers.h>
-#include <acpi/container.h>
 
 #define PREFIX "ACPI: "
 
-- 
cgit v1.2.3


From f058cdf4cf3e5181172455f90fc73f2127b6ddf8 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Sat, 9 Feb 2013 15:29:11 +0100
Subject: ACPI / scan: Make acpi_bus_hot_remove_device() acquire the scan lock

The ACPI scan lock has been introduced to prevent acpi_bus_scan()
and acpi_bus_trim() from running in parallel with each other for
overlapping ACPI namespace scopes.  However, it is not sufficient
to do that, because if acpi_bus_scan() is run (for an overlapping
namespace scope) right after the acpi_bus_trim() in
acpi_bus_hot_remove_device(), the subsequent eject will remove
devices without removing the corresponding struct acpi_device
objects (and possibly companion "physical" device objects).
Therefore acpi_bus_hot_remove_device() has to acquire the scan
lock before carrying out the bus trimming and hold it through
the evaluation of _EJ0, so make that happen.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Toshi Kani <toshi.kani@hp.com>
---
 drivers/acpi/scan.c | 31 +++++++++++++++++--------------
 1 file changed, 17 insertions(+), 14 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index a48b6e92f9f8..75fb14fc19e8 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -95,6 +95,8 @@ acpi_device_modalias_show(struct device *dev, struct device_attribute *attr, cha
 }
 static DEVICE_ATTR(modalias, 0444, acpi_device_modalias_show, NULL);
 
+static void __acpi_bus_trim(struct acpi_device *start);
+
 /**
  * acpi_bus_hot_remove_device: hot-remove a device and its children
  * @context: struct acpi_eject_event pointer (freed in this func)
@@ -114,10 +116,12 @@ void acpi_bus_hot_remove_device(void *context)
 	acpi_status status = AE_OK;
 	u32 ost_code = ACPI_OST_SC_NON_SPECIFIC_FAILURE; /* default */
 
+	mutex_lock(&acpi_scan_lock);
+
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 		"Hot-removing device %s...\n", dev_name(&device->dev)));
 
-	acpi_bus_trim(device);
+	__acpi_bus_trim(device);
 	/* Device node has been released. */
 	device = NULL;
 
@@ -146,18 +150,14 @@ void acpi_bus_hot_remove_device(void *context)
 	status = acpi_evaluate_object(handle, "_EJ0", &arg_list, NULL);
 	if (ACPI_FAILURE(status)) {
 		if (status != AE_NOT_FOUND)
-			printk(KERN_WARNING PREFIX
-					"Eject device failed\n");
-		goto err_out;
-	}
+			acpi_handle_warn(handle, "Eject failed\n");
 
-	kfree(context);
-	return;
+		/* Tell the firmware the hot-remove operation has failed. */
+		acpi_evaluate_hotplug_ost(handle, ej_event->event,
+					  ost_code, NULL);
+	}
 
-err_out:
-	/* Inform firmware the hot-remove operation has completed w/ error */
-	(void) acpi_evaluate_hotplug_ost(handle,
-				ej_event->event, ost_code, NULL);
+	mutex_unlock(&acpi_scan_lock);
 	kfree(context);
 	return;
 }
@@ -1683,10 +1683,8 @@ static acpi_status acpi_bus_remove(acpi_handle handle, u32 lvl_not_used,
 	return AE_OK;
 }
 
-void acpi_bus_trim(struct acpi_device *start)
+static void __acpi_bus_trim(struct acpi_device *start)
 {
-	mutex_lock(&acpi_scan_lock);
-
 	/*
 	 * Execute acpi_bus_device_detach() as a post-order callback to detach
 	 * all ACPI drivers from the device nodes being removed.
@@ -1701,7 +1699,12 @@ void acpi_bus_trim(struct acpi_device *start)
 	acpi_walk_namespace(ACPI_TYPE_ANY, start->handle, ACPI_UINT32_MAX, NULL,
 			    acpi_bus_remove, NULL, NULL);
 	acpi_bus_remove(start->handle, 0, NULL, NULL);
+}
 
+void acpi_bus_trim(struct acpi_device *start)
+{
+	mutex_lock(&acpi_scan_lock);
+	__acpi_bus_trim(start);
 	mutex_unlock(&acpi_scan_lock);
 }
 EXPORT_SYMBOL_GPL(acpi_bus_trim);
-- 
cgit v1.2.3


From 0aa120a0138398d6597350f4c1dcb46d14be1a0b Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Sat, 9 Feb 2013 15:29:20 +0100
Subject: ACPI / scan: Full transition to D3cold in acpi_device_unregister()

In order to drop reference counts of all power resources used by an
ACPI device node being removed, acpi_device_unregister() calls
acpi_power_transition(device, ACPI_STATE_D3_COLD), which effectively
transitions the device node into D3cold if it uses any power
resources.  However, for some device nodes it may not be appropriate
to remove power from them entirely before putting them into D3hot
before.  On the other hand, executing _PS3 for devices that don't
use power resources before removing them shouldn't really hurt.
In fact, that is done by acpi_bus_hot_remove_device(), but this is
not the right place to do it, because the bus trimming may have
caused power to be removed from the device node in question already
before.

For these reasons, make acpi_device_unregister() carry out full
power-off transition for all device nodes supporting that and remove
the direct evaluation of _PS3 from acpi_bus_hot_remove_device().

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/scan.c | 13 ++++---------
 1 file changed, 4 insertions(+), 9 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 75fb14fc19e8..c7676ee8eca4 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -125,12 +125,6 @@ void acpi_bus_hot_remove_device(void *context)
 	/* Device node has been released. */
 	device = NULL;
 
-	/* power off device */
-	status = acpi_evaluate_object(handle, "_PS3", NULL, NULL);
-	if (ACPI_FAILURE(status) && status != AE_NOT_FOUND)
-		printk(KERN_WARNING PREFIX
-				"Power-off device failed\n");
-
 	if (ACPI_SUCCESS(acpi_get_handle(handle, "_LCK", &temp))) {
 		arg_list.count = 1;
 		arg_list.pointer = &arg;
@@ -780,10 +774,11 @@ static void acpi_device_unregister(struct acpi_device *device)
 
 	device_del(&device->dev);
 	/*
-	 * Drop the reference counts of all power resources the device depends
-	 * on and turn off the ones that have no more references.
+	 * Transition the device to D3cold to drop the reference counts of all
+	 * power resources the device depends on and turn off the ones that have
+	 * no more references.
 	 */
-	acpi_power_transition(device, ACPI_STATE_D3_COLD);
+	acpi_device_set_power(device, ACPI_STATE_D3_COLD);
 	put_device(&device->dev);
 }
 
-- 
cgit v1.2.3


From 3757b94802fb65d8f696597a74053cf21738da0b Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Wed, 13 Feb 2013 14:36:47 +0100
Subject: ACPI / hotplug: Fix concurrency issues and memory leaks

This changeset is aimed at fixing a few different but related
problems in the ACPI hotplug infrastructure.

First of all, since notify handlers may be run in parallel with
acpi_bus_scan(), acpi_bus_trim() and acpi_bus_hot_remove_device()
and some of them are installed for ACPI handles that have no struct
acpi_device objects attached (i.e. before those objects are created),
those notify handlers have to take acpi_scan_lock to prevent races
from taking place (e.g. a struct acpi_device is found to be present
for the given ACPI handle, but right after that it is removed by
acpi_bus_trim() running in parallel to the given notify handler).
Moreover, since some of them call acpi_bus_scan() and
acpi_bus_trim(), this leads to the conclusion that acpi_scan_lock
should be acquired by the callers of these two funtions rather by
these functions themselves.

For these reasons, make all notify handlers that can handle device
addition and eject events take acpi_scan_lock and remove the
acpi_scan_lock locking from acpi_bus_scan() and acpi_bus_trim().
Accordingly, update all of their users to make sure that they
are always called under acpi_scan_lock.

Furthermore, since eject operations are carried out asynchronously
with respect to the notify events that trigger them, with the help
of acpi_bus_hot_remove_device(), even if notify handlers take the
ACPI scan lock, it still is possible that, for example,
acpi_bus_trim() will run between acpi_bus_hot_remove_device() and
the notify handler that scheduled its execution and that
acpi_bus_trim() will remove the device node passed to
acpi_bus_hot_remove_device() for ejection.  In that case, the struct
acpi_device object obtained by acpi_bus_hot_remove_device() will be
invalid and not-so-funny things will ensue.  To protect agaist that,
make the users of acpi_bus_hot_remove_device() run get_device() on
ACPI device node objects that are about to be passed to it and make
acpi_bus_hot_remove_device() run put_device() on them and check if
their ACPI handles are not NULL (make acpi_device_unregister() clear
the device nodes' ACPI handles for that check to work).

Finally, observe that acpi_os_hotplug_execute() actually can fail,
in which case its caller ought to free memory allocated for the
context object to prevent leaks from happening.  It also needs to
run put_device() on the device node that it ran get_device() on
previously in that case.  Modify the code accordingly.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
---
 drivers/acpi/acpi_memhotplug.c  | 56 +++++++++++++++++++++------------
 drivers/acpi/container.c        | 12 ++++---
 drivers/acpi/dock.c             | 19 ++++++++++--
 drivers/acpi/processor_driver.c | 24 +++++++++-----
 drivers/acpi/scan.c             | 69 ++++++++++++++++++++++++++++-------------
 5 files changed, 126 insertions(+), 54 deletions(-)

(limited to 'drivers/acpi')

diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c
index 94c823b25138..034d3e72aa92 100644
--- a/drivers/acpi/acpi_memhotplug.c
+++ b/drivers/acpi/acpi_memhotplug.c
@@ -153,14 +153,16 @@ acpi_memory_get_device_resources(struct acpi_memory_device *mem_device)
 	return 0;
 }
 
-static int
-acpi_memory_get_device(acpi_handle handle,
-		       struct acpi_memory_device **mem_device)
+static int acpi_memory_get_device(acpi_handle handle,
+				  struct acpi_memory_device **mem_device)
 {
 	struct acpi_device *device = NULL;
-	int result;
+	int result = 0;
 
-	if (!acpi_bus_get_device(handle, &device) && device)
+	acpi_scan_lock_acquire();
+
+	acpi_bus_get_device(handle, &device);
+	if (device)
 		goto end;
 
 	/*
@@ -169,23 +171,28 @@ acpi_memory_get_device(acpi_handle handle,
 	 */
 	result = acpi_bus_scan(handle);
 	if (result) {
-		acpi_handle_warn(handle, "Cannot add acpi bus\n");
-		return -EINVAL;
+		acpi_handle_warn(handle, "ACPI namespace scan failed\n");
+		result = -EINVAL;
+		goto out;
 	}
 	result = acpi_bus_get_device(handle, &device);
 	if (result) {
 		acpi_handle_warn(handle, "Missing device object\n");
-		return -EINVAL;
+		result = -EINVAL;
+		goto out;
 	}
 
-      end:
+ end:
 	*mem_device = acpi_driver_data(device);
 	if (!(*mem_device)) {
 		dev_err(&device->dev, "driver data not found\n");
-		return -ENODEV;
+		result = -ENODEV;
+		goto out;
 	}
 
-	return 0;
+ out:
+	acpi_scan_lock_release();
+	return result;
 }
 
 static int acpi_memory_check_device(struct acpi_memory_device *mem_device)
@@ -305,6 +312,7 @@ static void acpi_memory_device_notify(acpi_handle handle, u32 event, void *data)
 	struct acpi_device *device;
 	struct acpi_eject_event *ej_event = NULL;
 	u32 ost_code = ACPI_OST_SC_NON_SPECIFIC_FAILURE; /* default */
+	acpi_status status;
 
 	switch (event) {
 	case ACPI_NOTIFY_BUS_CHECK:
@@ -327,29 +335,40 @@ static void acpi_memory_device_notify(acpi_handle handle, u32 event, void *data)
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 				  "\nReceived EJECT REQUEST notification for device\n"));
 
+		status = AE_ERROR;
+		acpi_scan_lock_acquire();
+
 		if (acpi_bus_get_device(handle, &device)) {
 			acpi_handle_err(handle, "Device doesn't exist\n");
-			break;
+			goto unlock;
 		}
 		mem_device = acpi_driver_data(device);
 		if (!mem_device) {
 			acpi_handle_err(handle, "Driver Data is NULL\n");
-			break;
+			goto unlock;
 		}
 
 		ej_event = kmalloc(sizeof(*ej_event), GFP_KERNEL);
 		if (!ej_event) {
 			pr_err(PREFIX "No memory, dropping EJECT\n");
-			break;
+			goto unlock;
 		}
 
+		get_device(&device->dev);
 		ej_event->device = device;
 		ej_event->event = ACPI_NOTIFY_EJECT_REQUEST;
-		acpi_os_hotplug_execute(acpi_bus_hot_remove_device,
-					(void *)ej_event);
+		/* The eject is carried out asynchronously. */
+		status = acpi_os_hotplug_execute(acpi_bus_hot_remove_device,
+						 ej_event);
+		if (ACPI_FAILURE(status)) {
+			put_device(&device->dev);
+			kfree(ej_event);
+		}
 
-		/* eject is performed asynchronously */
-		return;
+ unlock:
+		acpi_scan_lock_release();
+		if (ACPI_SUCCESS(status))
+			return;
 	default:
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 				  "Unsupported event [0x%x]\n", event));
@@ -360,7 +379,6 @@ static void acpi_memory_device_notify(acpi_handle handle, u32 event, void *data)
 
 	/* Inform firmware that the hotplug operation has completed */
 	(void) acpi_evaluate_hotplug_ost(handle, event, ost_code, NULL);
-	return;
 }
 
 static void acpi_memory_device_free(struct acpi_memory_device *mem_device)
diff --git a/drivers/acpi/container.c b/drivers/acpi/container.c
index 4cc2937cc022..5523ba7d764d 100644
--- a/drivers/acpi/container.c
+++ b/drivers/acpi/container.c
@@ -88,6 +88,8 @@ static void container_notify_cb(acpi_handle handle, u32 type, void *context)
 	acpi_status status;
 	u32 ost_code = ACPI_OST_SC_NON_SPECIFIC_FAILURE; /* default */
 
+	acpi_scan_lock_acquire();
+
 	switch (type) {
 	case ACPI_NOTIFY_BUS_CHECK:
 		/* Fall through */
@@ -103,7 +105,7 @@ static void container_notify_cb(acpi_handle handle, u32 type, void *context)
 				/* device exist and this is a remove request */
 				device->flags.eject_pending = 1;
 				kobject_uevent(&device->dev.kobj, KOBJ_OFFLINE);
-				return;
+				goto out;
 			}
 			break;
 		}
@@ -130,18 +132,20 @@ static void container_notify_cb(acpi_handle handle, u32 type, void *context)
 		if (!acpi_bus_get_device(handle, &device) && device) {
 			device->flags.eject_pending = 1;
 			kobject_uevent(&device->dev.kobj, KOBJ_OFFLINE);
-			return;
+			goto out;
 		}
 		break;
 
 	default:
 		/* non-hotplug event; possibly handled by other handler */
-		return;
+		goto out;
 	}
 
 	/* Inform firmware that the hotplug operation has completed */
 	(void) acpi_evaluate_hotplug_ost(handle, type, ost_code, NULL);
-	return;
+
+ out:
+	acpi_scan_lock_release();
 }
 
 static bool is_container(acpi_handle handle)
diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c
index 68d720af71ed..4fdea381ef21 100644
--- a/drivers/acpi/dock.c
+++ b/drivers/acpi/dock.c
@@ -744,7 +744,9 @@ static void acpi_dock_deferred_cb(void *context)
 {
 	struct dock_data *data = context;
 
+	acpi_scan_lock_acquire();
 	dock_notify(data->handle, data->event, data->ds);
+	acpi_scan_lock_release();
 	kfree(data);
 }
 
@@ -757,20 +759,31 @@ static int acpi_dock_notifier_call(struct notifier_block *this,
 	if (event != ACPI_NOTIFY_BUS_CHECK && event != ACPI_NOTIFY_DEVICE_CHECK
 	   && event != ACPI_NOTIFY_EJECT_REQUEST)
 		return 0;
+
+	acpi_scan_lock_acquire();
+
 	list_for_each_entry(dock_station, &dock_stations, sibling) {
 		if (dock_station->handle == handle) {
 			struct dock_data *dd;
+			acpi_status status;
 
 			dd = kmalloc(sizeof(*dd), GFP_KERNEL);
 			if (!dd)
-				return 0;
+				break;
+
 			dd->handle = handle;
 			dd->event = event;
 			dd->ds = dock_station;
-			acpi_os_hotplug_execute(acpi_dock_deferred_cb, dd);
-			return 0 ;
+			status = acpi_os_hotplug_execute(acpi_dock_deferred_cb,
+							 dd);
+			if (ACPI_FAILURE(status))
+				kfree(dd);
+
+			break;
 		}
 	}
+
+	acpi_scan_lock_release();
 	return 0;
 }
 
diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c
index c5d2fd85dbe0..cbf1f122666b 100644
--- a/drivers/acpi/processor_driver.c
+++ b/drivers/acpi/processor_driver.c
@@ -683,8 +683,11 @@ static void acpi_processor_hotplug_notify(acpi_handle handle,
 	struct acpi_device *device = NULL;
 	struct acpi_eject_event *ej_event = NULL;
 	u32 ost_code = ACPI_OST_SC_NON_SPECIFIC_FAILURE; /* default */
+	acpi_status status;
 	int result;
 
+	acpi_scan_lock_acquire();
+
 	switch (event) {
 	case ACPI_NOTIFY_BUS_CHECK:
 	case ACPI_NOTIFY_DEVICE_CHECK:
@@ -733,25 +736,32 @@ static void acpi_processor_hotplug_notify(acpi_handle handle,
 			break;
 		}
 
+		get_device(&device->dev);
 		ej_event->device = device;
 		ej_event->event = ACPI_NOTIFY_EJECT_REQUEST;
-		acpi_os_hotplug_execute(acpi_bus_hot_remove_device,
-					(void *)ej_event);
-
-		/* eject is performed asynchronously */
-		return;
+		/* The eject is carried out asynchronously. */
+		status = acpi_os_hotplug_execute(acpi_bus_hot_remove_device,
+						 ej_event);
+		if (ACPI_FAILURE(status)) {
+			put_device(&device->dev);
+			kfree(ej_event);
+			break;
+		}
+		goto out;
 
 	default:
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 				  "Unsupported event [0x%x]\n", event));
 
 		/* non-hotplug event; possibly handled by other handler */
-		return;
+		goto out;
 	}
 
 	/* Inform firmware that the hotplug operation has completed */
 	(void) acpi_evaluate_hotplug_ost(handle, event, ost_code, NULL);
-	return;
+
+ out:
+	acpi_scan_lock_release();
 }
 
 static acpi_status is_processor_device(acpi_handle handle)
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index c7676ee8eca4..d16a94ef0baf 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -42,6 +42,18 @@ struct acpi_device_bus_id{
 	struct list_head node;
 };
 
+void acpi_scan_lock_acquire(void)
+{
+	mutex_lock(&acpi_scan_lock);
+}
+EXPORT_SYMBOL_GPL(acpi_scan_lock_acquire);
+
+void acpi_scan_lock_release(void)
+{
+	mutex_unlock(&acpi_scan_lock);
+}
+EXPORT_SYMBOL_GPL(acpi_scan_lock_release);
+
 int acpi_scan_add_handler(struct acpi_scan_handler *handler)
 {
 	if (!handler || !handler->attach)
@@ -95,8 +107,6 @@ acpi_device_modalias_show(struct device *dev, struct device_attribute *attr, cha
 }
 static DEVICE_ATTR(modalias, 0444, acpi_device_modalias_show, NULL);
 
-static void __acpi_bus_trim(struct acpi_device *start);
-
 /**
  * acpi_bus_hot_remove_device: hot-remove a device and its children
  * @context: struct acpi_eject_event pointer (freed in this func)
@@ -107,7 +117,7 @@ static void __acpi_bus_trim(struct acpi_device *start);
  */
 void acpi_bus_hot_remove_device(void *context)
 {
-	struct acpi_eject_event *ej_event = (struct acpi_eject_event *) context;
+	struct acpi_eject_event *ej_event = context;
 	struct acpi_device *device = ej_event->device;
 	acpi_handle handle = device->handle;
 	acpi_handle temp;
@@ -118,11 +128,19 @@ void acpi_bus_hot_remove_device(void *context)
 
 	mutex_lock(&acpi_scan_lock);
 
+	/* If there is no handle, the device node has been unregistered. */
+	if (!device->handle) {
+		dev_dbg(&device->dev, "ACPI handle missing\n");
+		put_device(&device->dev);
+		goto out;
+	}
+
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 		"Hot-removing device %s...\n", dev_name(&device->dev)));
 
-	__acpi_bus_trim(device);
-	/* Device node has been released. */
+	acpi_bus_trim(device);
+	/* Device node has been unregistered. */
+	put_device(&device->dev);
 	device = NULL;
 
 	if (ACPI_SUCCESS(acpi_get_handle(handle, "_LCK", &temp))) {
@@ -151,6 +169,7 @@ void acpi_bus_hot_remove_device(void *context)
 					  ost_code, NULL);
 	}
 
+ out:
 	mutex_unlock(&acpi_scan_lock);
 	kfree(context);
 	return;
@@ -212,6 +231,7 @@ acpi_eject_store(struct device *d, struct device_attribute *attr,
 		goto err;
 	}
 
+	get_device(&acpi_device->dev);
 	ej_event->device = acpi_device;
 	if (acpi_device->flags.eject_pending) {
 		/* event originated from ACPI eject notification */
@@ -224,7 +244,11 @@ acpi_eject_store(struct device *d, struct device_attribute *attr,
 			ej_event->event, ACPI_OST_SC_EJECT_IN_PROGRESS, NULL);
 	}
 
-	acpi_os_hotplug_execute(acpi_bus_hot_remove_device, (void *)ej_event);
+	status = acpi_os_hotplug_execute(acpi_bus_hot_remove_device, ej_event);
+	if (ACPI_FAILURE(status)) {
+		put_device(&acpi_device->dev);
+		kfree(ej_event);
+	}
 err:
 	return ret;
 }
@@ -779,6 +803,7 @@ static void acpi_device_unregister(struct acpi_device *device)
 	 * no more references.
 	 */
 	acpi_device_set_power(device, ACPI_STATE_D3_COLD);
+	device->handle = NULL;
 	put_device(&device->dev);
 }
 
@@ -1623,14 +1648,14 @@ static acpi_status acpi_bus_device_attach(acpi_handle handle, u32 lvl_not_used,
  * there has been a real error.  There just have been no suitable ACPI objects
  * in the table trunk from which the kernel could create a device and add an
  * appropriate driver.
+ *
+ * Must be called under acpi_scan_lock.
  */
 int acpi_bus_scan(acpi_handle handle)
 {
 	void *device = NULL;
 	int error = 0;
 
-	mutex_lock(&acpi_scan_lock);
-
 	if (ACPI_SUCCESS(acpi_bus_check_add(handle, 0, NULL, &device)))
 		acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX,
 				    acpi_bus_check_add, NULL, NULL, &device);
@@ -1641,7 +1666,6 @@ int acpi_bus_scan(acpi_handle handle)
 		acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX,
 				    acpi_bus_device_attach, NULL, NULL, NULL);
 
-	mutex_unlock(&acpi_scan_lock);
 	return error;
 }
 EXPORT_SYMBOL(acpi_bus_scan);
@@ -1678,7 +1702,13 @@ static acpi_status acpi_bus_remove(acpi_handle handle, u32 lvl_not_used,
 	return AE_OK;
 }
 
-static void __acpi_bus_trim(struct acpi_device *start)
+/**
+ * acpi_bus_trim - Remove ACPI device node and all of its descendants
+ * @start: Root of the ACPI device nodes subtree to remove.
+ *
+ * Must be called under acpi_scan_lock.
+ */
+void acpi_bus_trim(struct acpi_device *start)
 {
 	/*
 	 * Execute acpi_bus_device_detach() as a post-order callback to detach
@@ -1695,13 +1725,6 @@ static void __acpi_bus_trim(struct acpi_device *start)
 			    acpi_bus_remove, NULL, NULL);
 	acpi_bus_remove(start->handle, 0, NULL, NULL);
 }
-
-void acpi_bus_trim(struct acpi_device *start)
-{
-	mutex_lock(&acpi_scan_lock);
-	__acpi_bus_trim(start);
-	mutex_unlock(&acpi_scan_lock);
-}
 EXPORT_SYMBOL_GPL(acpi_bus_trim);
 
 static int acpi_bus_scan_fixed(void)
@@ -1758,23 +1781,27 @@ int __init acpi_scan_init(void)
 	acpi_csrt_init();
 	acpi_container_init();
 
+	mutex_lock(&acpi_scan_lock);
 	/*
 	 * Enumerate devices in the ACPI namespace.
 	 */
 	result = acpi_bus_scan(ACPI_ROOT_OBJECT);
 	if (result)
-		return result;
+		goto out;
 
 	result = acpi_bus_get_device(ACPI_ROOT_OBJECT, &acpi_root);
 	if (result)
-		return result;
+		goto out;
 
 	result = acpi_bus_scan_fixed();
 	if (result) {
 		acpi_device_unregister(acpi_root);
-		return result;
+		goto out;
 	}
 
 	acpi_update_all_gpes();
-	return 0;
+
+ out:
+	mutex_unlock(&acpi_scan_lock);
+	return result;
 }
-- 
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