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-rw-r--r--drivers/mfd/Kconfig7
-rw-r--r--drivers/mfd/Makefile1
-rw-r--r--drivers/mfd/ab8500-core.c13
-rw-r--r--drivers/mfd/arizona-core.c2
-rw-r--r--drivers/mfd/db8500-prcmu.c12
-rw-r--r--drivers/mfd/max8997.c73
-rw-r--r--drivers/mfd/menelaus.c2
-rw-r--r--drivers/mfd/omap-usb-host.c5
-rw-r--r--drivers/mfd/omap-usb-tll.c2
-rw-r--r--drivers/mfd/omap-usb.h2
-rw-r--r--drivers/mfd/tps6586x.c76
-rw-r--r--drivers/mfd/vexpress-config.c277
-rw-r--r--drivers/mfd/vexpress-sysreg.c475
-rw-r--r--drivers/mfd/wm5102-tables.c3
-rw-r--r--drivers/mfd/wm8994-core.c35
15 files changed, 884 insertions, 101 deletions
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 2c10938b3567..b63987c6ed20 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -211,7 +211,6 @@ config MFD_TPS6586X
depends on I2C=y && GENERIC_HARDIRQS
select MFD_CORE
select REGMAP_I2C
- depends on REGULATOR
help
If you say yes here you get support for the TPS6586X series of
Power Management chips.
@@ -1080,3 +1079,9 @@ config MCP_UCB1200_TS
depends on MCP_UCB1200 && INPUT
endmenu
+
+config VEXPRESS_CONFIG
+ bool
+ help
+ Platform configuration infrastructure for the ARM Ltd.
+ Versatile Express.
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index b53db06d1b46..69f260ae0225 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -141,3 +141,4 @@ obj-$(CONFIG_MFD_RC5T583) += rc5t583.o rc5t583-irq.o
obj-$(CONFIG_MFD_SEC_CORE) += sec-core.o sec-irq.o
obj-$(CONFIG_MFD_SYSCON) += syscon.o
obj-$(CONFIG_MFD_LM3533) += lm3533-core.o lm3533-ctrlbank.o
+obj-$(CONFIG_VEXPRESS_CONFIG) += vexpress-config.o vexpress-sysreg.o
diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c
index 908d09b8ff43..59da1650fb81 100644
--- a/drivers/mfd/ab8500-core.c
+++ b/drivers/mfd/ab8500-core.c
@@ -565,15 +565,10 @@ static int ab8500_irq_init(struct ab8500 *ab8500, struct device_node *np)
else
num_irqs = AB8500_NR_IRQS;
- if (ab8500->irq_base) {
- ab8500->domain = irq_domain_add_legacy(
- NULL, num_irqs, ab8500->irq_base,
- 0, &ab8500_irq_ops, ab8500);
- }
- else {
- ab8500->domain = irq_domain_add_linear(
- np, num_irqs, &ab8500_irq_ops, ab8500);
- }
+ /* If ->irq_base is zero this will give a linear mapping */
+ ab8500->domain = irq_domain_add_simple(NULL,
+ num_irqs, ab8500->irq_base,
+ &ab8500_irq_ops, ab8500);
if (!ab8500->domain) {
dev_err(ab8500->dev, "Failed to create irqdomain\n");
diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c
index 1a6f943f7337..c784f4602a74 100644
--- a/drivers/mfd/arizona-core.c
+++ b/drivers/mfd/arizona-core.c
@@ -272,6 +272,7 @@ static struct mfd_cell early_devs[] = {
static struct mfd_cell wm5102_devs[] = {
{ .name = "arizona-extcon" },
{ .name = "arizona-gpio" },
+ { .name = "arizona-haptics" },
{ .name = "arizona-micsupp" },
{ .name = "arizona-pwm" },
{ .name = "wm5102-codec" },
@@ -280,6 +281,7 @@ static struct mfd_cell wm5102_devs[] = {
static struct mfd_cell wm5110_devs[] = {
{ .name = "arizona-extcon" },
{ .name = "arizona-gpio" },
+ { .name = "arizona-haptics" },
{ .name = "arizona-micsupp" },
{ .name = "arizona-pwm" },
{ .name = "wm5110-codec" },
diff --git a/drivers/mfd/db8500-prcmu.c b/drivers/mfd/db8500-prcmu.c
index dc5691569370..29710565a08f 100644
--- a/drivers/mfd/db8500-prcmu.c
+++ b/drivers/mfd/db8500-prcmu.c
@@ -2743,9 +2743,15 @@ static struct irq_domain_ops db8500_irq_ops = {
static int db8500_irq_init(struct device_node *np)
{
- db8500_irq_domain = irq_domain_add_legacy(
- np, NUM_PRCMU_WAKEUPS, IRQ_PRCMU_BASE,
- 0, &db8500_irq_ops, NULL);
+ int irq_base = -1;
+
+ /* In the device tree case, just take some IRQs */
+ if (!np)
+ irq_base = IRQ_PRCMU_BASE;
+
+ db8500_irq_domain = irq_domain_add_simple(
+ np, NUM_PRCMU_WAKEUPS, irq_base,
+ &db8500_irq_ops, NULL);
if (!db8500_irq_domain) {
pr_err("Failed to create irqdomain\n");
diff --git a/drivers/mfd/max8997.c b/drivers/mfd/max8997.c
index f123517065ec..abd5c80c7cf5 100644
--- a/drivers/mfd/max8997.c
+++ b/drivers/mfd/max8997.c
@@ -21,8 +21,10 @@
* This driver is based on max8998.c
*/
+#include <linux/err.h>
#include <linux/slab.h>
#include <linux/i2c.h>
+#include <linux/of_irq.h>
#include <linux/interrupt.h>
#include <linux/pm_runtime.h>
#include <linux/module.h>
@@ -47,6 +49,13 @@ static struct mfd_cell max8997_devs[] = {
{ .name = "max8997-led", .id = 2 },
};
+#ifdef CONFIG_OF
+static struct of_device_id __devinitdata max8997_pmic_dt_match[] = {
+ { .compatible = "maxim,max8997-pmic", .data = TYPE_MAX8997 },
+ {},
+};
+#endif
+
int max8997_read_reg(struct i2c_client *i2c, u8 reg, u8 *dest)
{
struct max8997_dev *max8997 = i2c_get_clientdata(i2c);
@@ -123,6 +132,58 @@ int max8997_update_reg(struct i2c_client *i2c, u8 reg, u8 val, u8 mask)
}
EXPORT_SYMBOL_GPL(max8997_update_reg);
+#ifdef CONFIG_OF
+/*
+ * Only the common platform data elements for max8997 are parsed here from the
+ * device tree. Other sub-modules of max8997 such as pmic, rtc and others have
+ * to parse their own platform data elements from device tree.
+ *
+ * The max8997 platform data structure is instantiated here and the drivers for
+ * the sub-modules need not instantiate another instance while parsing their
+ * platform data.
+ */
+static struct max8997_platform_data *max8997_i2c_parse_dt_pdata(
+ struct device *dev)
+{
+ struct max8997_platform_data *pd;
+
+ pd = devm_kzalloc(dev, sizeof(*pd), GFP_KERNEL);
+ if (!pd) {
+ dev_err(dev, "could not allocate memory for pdata\n");
+ return ERR_PTR(-ENOMEM);
+ }
+
+ pd->ono = irq_of_parse_and_map(dev->of_node, 1);
+
+ /*
+ * ToDo: the 'wakeup' member in the platform data is more of a linux
+ * specfic information. Hence, there is no binding for that yet and
+ * not parsed here.
+ */
+
+ return pd;
+}
+#else
+static struct max8997_platform_data *max8997_i2c_parse_dt_pdata(
+ struct device *dev)
+{
+ return 0;
+}
+#endif
+
+static inline int max8997_i2c_get_driver_data(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
+{
+#ifdef CONFIG_OF
+ if (i2c->dev.of_node) {
+ const struct of_device_id *match;
+ match = of_match_node(max8997_pmic_dt_match, i2c->dev.of_node);
+ return (int)match->data;
+ }
+#endif
+ return (int)id->driver_data;
+}
+
static int max8997_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
@@ -137,12 +198,21 @@ static int max8997_i2c_probe(struct i2c_client *i2c,
i2c_set_clientdata(i2c, max8997);
max8997->dev = &i2c->dev;
max8997->i2c = i2c;
- max8997->type = id->driver_data;
+ max8997->type = max8997_i2c_get_driver_data(i2c, id);
max8997->irq = i2c->irq;
+ if (max8997->dev->of_node) {
+ pdata = max8997_i2c_parse_dt_pdata(max8997->dev);
+ if (IS_ERR(pdata)) {
+ ret = PTR_ERR(pdata);
+ goto err;
+ }
+ }
+
if (!pdata)
goto err;
+ max8997->pdata = pdata;
max8997->ono = pdata->ono;
mutex_init(&max8997->iolock);
@@ -434,6 +504,7 @@ static struct i2c_driver max8997_i2c_driver = {
.name = "max8997",
.owner = THIS_MODULE,
.pm = &max8997_pm,
+ .of_match_table = of_match_ptr(max8997_pmic_dt_match),
},
.probe = max8997_i2c_probe,
.remove = max8997_i2c_remove,
diff --git a/drivers/mfd/menelaus.c b/drivers/mfd/menelaus.c
index 55d589981412..998ce8cb3065 100644
--- a/drivers/mfd/menelaus.c
+++ b/drivers/mfd/menelaus.c
@@ -41,11 +41,11 @@
#include <linux/rtc.h>
#include <linux/bcd.h>
#include <linux/slab.h>
+#include <linux/mfd/menelaus.h>
#include <asm/mach/irq.h>
#include <asm/gpio.h>
-#include <plat/menelaus.h>
#define DRIVER_NAME "menelaus"
diff --git a/drivers/mfd/omap-usb-host.c b/drivers/mfd/omap-usb-host.c
index 29b8ed21213e..770a0d01e0b9 100644
--- a/drivers/mfd/omap-usb-host.c
+++ b/drivers/mfd/omap-usb-host.c
@@ -26,9 +26,12 @@
#include <linux/spinlock.h>
#include <linux/gpio.h>
#include <plat/cpu.h>
-#include <plat/usb.h>
+#include <linux/platform_device.h>
+#include <linux/platform_data/usb-omap.h>
#include <linux/pm_runtime.h>
+#include "omap-usb.h"
+
#define USBHS_DRIVER_NAME "usbhs_omap"
#define OMAP_EHCI_DEVICE "ehci-omap"
#define OMAP_OHCI_DEVICE "ohci-omap3"
diff --git a/drivers/mfd/omap-usb-tll.c b/drivers/mfd/omap-usb-tll.c
index 401b976e3aff..eb869153206d 100644
--- a/drivers/mfd/omap-usb-tll.c
+++ b/drivers/mfd/omap-usb-tll.c
@@ -25,8 +25,8 @@
#include <linux/clk.h>
#include <linux/io.h>
#include <linux/err.h>
-#include <plat/usb.h>
#include <linux/pm_runtime.h>
+#include <linux/platform_data/usb-omap.h>
#define USBTLL_DRIVER_NAME "usbhs_tll"
diff --git a/drivers/mfd/omap-usb.h b/drivers/mfd/omap-usb.h
new file mode 100644
index 000000000000..972aa961b064
--- /dev/null
+++ b/drivers/mfd/omap-usb.h
@@ -0,0 +1,2 @@
+extern int omap_tll_enable(void);
+extern int omap_tll_disable(void);
diff --git a/drivers/mfd/tps6586x.c b/drivers/mfd/tps6586x.c
index 9f92c3b22093..87ba7ada3bbc 100644
--- a/drivers/mfd/tps6586x.c
+++ b/drivers/mfd/tps6586x.c
@@ -24,8 +24,6 @@
#include <linux/err.h>
#include <linux/i2c.h>
#include <linux/regmap.h>
-#include <linux/regulator/of_regulator.h>
-#include <linux/regulator/machine.h>
#include <linux/mfd/core.h>
#include <linux/mfd/tps6586x.h>
@@ -99,6 +97,9 @@ static struct mfd_cell tps6586x_cell[] = {
.name = "tps6586x-gpio",
},
{
+ .name = "tps6586x-pmic",
+ },
+ {
.name = "tps6586x-rtc",
},
{
@@ -350,80 +351,19 @@ failed:
}
#ifdef CONFIG_OF
-static struct of_regulator_match tps6586x_matches[] = {
- { .name = "sys", .driver_data = (void *)TPS6586X_ID_SYS },
- { .name = "sm0", .driver_data = (void *)TPS6586X_ID_SM_0 },
- { .name = "sm1", .driver_data = (void *)TPS6586X_ID_SM_1 },
- { .name = "sm2", .driver_data = (void *)TPS6586X_ID_SM_2 },
- { .name = "ldo0", .driver_data = (void *)TPS6586X_ID_LDO_0 },
- { .name = "ldo1", .driver_data = (void *)TPS6586X_ID_LDO_1 },
- { .name = "ldo2", .driver_data = (void *)TPS6586X_ID_LDO_2 },
- { .name = "ldo3", .driver_data = (void *)TPS6586X_ID_LDO_3 },
- { .name = "ldo4", .driver_data = (void *)TPS6586X_ID_LDO_4 },
- { .name = "ldo5", .driver_data = (void *)TPS6586X_ID_LDO_5 },
- { .name = "ldo6", .driver_data = (void *)TPS6586X_ID_LDO_6 },
- { .name = "ldo7", .driver_data = (void *)TPS6586X_ID_LDO_7 },
- { .name = "ldo8", .driver_data = (void *)TPS6586X_ID_LDO_8 },
- { .name = "ldo9", .driver_data = (void *)TPS6586X_ID_LDO_9 },
- { .name = "ldo_rtc", .driver_data = (void *)TPS6586X_ID_LDO_RTC },
-};
-
static struct tps6586x_platform_data *tps6586x_parse_dt(struct i2c_client *client)
{
- const unsigned int num = ARRAY_SIZE(tps6586x_matches);
struct device_node *np = client->dev.of_node;
struct tps6586x_platform_data *pdata;
- struct tps6586x_subdev_info *devs;
- struct device_node *regs;
- const char *sys_rail_name = NULL;
- unsigned int count;
- unsigned int i, j;
- int err;
-
- regs = of_find_node_by_name(np, "regulators");
- if (!regs)
- return NULL;
-
- err = of_regulator_match(&client->dev, regs, tps6586x_matches, num);
- if (err < 0) {
- of_node_put(regs);
- return NULL;
- }
-
- of_node_put(regs);
- count = err;
-
- devs = devm_kzalloc(&client->dev, count * sizeof(*devs), GFP_KERNEL);
- if (!devs)
- return NULL;
-
- for (i = 0, j = 0; i < num && j < count; i++) {
- struct regulator_init_data *reg_idata;
-
- if (!tps6586x_matches[i].init_data)
- continue;
-
- reg_idata = tps6586x_matches[i].init_data;
- devs[j].name = "tps6586x-regulator";
- devs[j].platform_data = tps6586x_matches[i].init_data;
- devs[j].id = (int)tps6586x_matches[i].driver_data;
- if (devs[j].id == TPS6586X_ID_SYS)
- sys_rail_name = reg_idata->constraints.name;
-
- if ((devs[j].id == TPS6586X_ID_LDO_5) ||
- (devs[j].id == TPS6586X_ID_LDO_RTC))
- reg_idata->supply_regulator = sys_rail_name;
-
- devs[j].of_node = tps6586x_matches[i].of_node;
- j++;
- }
pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL);
- if (!pdata)
+ if (!pdata) {
+ dev_err(&client->dev, "Memory allocation failed\n");
return NULL;
+ }
- pdata->num_subdevs = count;
- pdata->subdevs = devs;
+ pdata->num_subdevs = 0;
+ pdata->subdevs = NULL;
pdata->gpio_base = -1;
pdata->irq_base = -1;
pdata->pm_off = of_property_read_bool(np, "ti,system-power-controller");
diff --git a/drivers/mfd/vexpress-config.c b/drivers/mfd/vexpress-config.c
new file mode 100644
index 000000000000..fae15d880758
--- /dev/null
+++ b/drivers/mfd/vexpress-config.c
@@ -0,0 +1,277 @@
+/*
+ * 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.
+ *
+ * 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.
+ *
+ * Copyright (C) 2012 ARM Limited
+ */
+
+#define pr_fmt(fmt) "vexpress-config: " fmt
+
+#include <linux/bitops.h>
+#include <linux/completion.h>
+#include <linux/export.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/vexpress.h>
+
+
+#define VEXPRESS_CONFIG_MAX_BRIDGES 2
+
+struct vexpress_config_bridge {
+ struct device_node *node;
+ struct vexpress_config_bridge_info *info;
+ struct list_head transactions;
+ spinlock_t transactions_lock;
+} vexpress_config_bridges[VEXPRESS_CONFIG_MAX_BRIDGES];
+
+static DECLARE_BITMAP(vexpress_config_bridges_map,
+ ARRAY_SIZE(vexpress_config_bridges));
+static DEFINE_MUTEX(vexpress_config_bridges_mutex);
+
+struct vexpress_config_bridge *vexpress_config_bridge_register(
+ struct device_node *node,
+ struct vexpress_config_bridge_info *info)
+{
+ struct vexpress_config_bridge *bridge;
+ int i;
+
+ pr_debug("Registering bridge '%s'\n", info->name);
+
+ mutex_lock(&vexpress_config_bridges_mutex);
+ i = find_first_zero_bit(vexpress_config_bridges_map,
+ ARRAY_SIZE(vexpress_config_bridges));
+ if (i >= ARRAY_SIZE(vexpress_config_bridges)) {
+ pr_err("Can't register more bridges!\n");
+ mutex_unlock(&vexpress_config_bridges_mutex);
+ return NULL;
+ }
+ __set_bit(i, vexpress_config_bridges_map);
+ bridge = &vexpress_config_bridges[i];
+
+ bridge->node = node;
+ bridge->info = info;
+ INIT_LIST_HEAD(&bridge->transactions);
+ spin_lock_init(&bridge->transactions_lock);
+
+ mutex_unlock(&vexpress_config_bridges_mutex);
+
+ return bridge;
+}
+
+void vexpress_config_bridge_unregister(struct vexpress_config_bridge *bridge)
+{
+ struct vexpress_config_bridge __bridge = *bridge;
+ int i;
+
+ mutex_lock(&vexpress_config_bridges_mutex);
+ for (i = 0; i < ARRAY_SIZE(vexpress_config_bridges); i++)
+ if (&vexpress_config_bridges[i] == bridge)
+ __clear_bit(i, vexpress_config_bridges_map);
+ mutex_unlock(&vexpress_config_bridges_mutex);
+
+ WARN_ON(!list_empty(&__bridge.transactions));
+ while (!list_empty(&__bridge.transactions))
+ cpu_relax();
+}
+
+
+struct vexpress_config_func {
+ struct vexpress_config_bridge *bridge;
+ void *func;
+};
+
+struct vexpress_config_func *__vexpress_config_func_get(struct device *dev,
+ struct device_node *node)
+{
+ struct device_node *bridge_node;
+ struct vexpress_config_func *func;
+ int i;
+
+ if (WARN_ON(dev && node && dev->of_node != node))
+ return NULL;
+ if (dev && !node)
+ node = dev->of_node;
+
+ func = kzalloc(sizeof(*func), GFP_KERNEL);
+ if (!func)
+ return NULL;
+
+ bridge_node = of_node_get(node);
+ while (bridge_node) {
+ const __be32 *prop = of_get_property(bridge_node,
+ "arm,vexpress,config-bridge", NULL);
+
+ if (prop) {
+ bridge_node = of_find_node_by_phandle(
+ be32_to_cpup(prop));
+ break;
+ }
+
+ bridge_node = of_get_next_parent(bridge_node);
+ }
+
+ mutex_lock(&vexpress_config_bridges_mutex);
+ for (i = 0; i < ARRAY_SIZE(vexpress_config_bridges); i++) {
+ struct vexpress_config_bridge *bridge =
+ &vexpress_config_bridges[i];
+
+ if (test_bit(i, vexpress_config_bridges_map) &&
+ bridge->node == bridge_node) {
+ func->bridge = bridge;
+ func->func = bridge->info->func_get(dev, node);
+ break;
+ }
+ }
+ mutex_unlock(&vexpress_config_bridges_mutex);
+
+ if (!func->func) {
+ of_node_put(node);
+ kfree(func);
+ return NULL;
+ }
+
+ return func;
+}
+
+void vexpress_config_func_put(struct vexpress_config_func *func)
+{
+ func->bridge->info->func_put(func->func);
+ of_node_put(func->bridge->node);
+ kfree(func);
+}
+
+
+struct vexpress_config_trans {
+ struct vexpress_config_func *func;
+ int offset;
+ bool write;
+ u32 *data;
+ int status;
+ struct completion completion;
+ struct list_head list;
+};
+
+static void vexpress_config_dump_trans(const char *what,
+ struct vexpress_config_trans *trans)
+{
+ pr_debug("%s %s trans %p func 0x%p offset %d data 0x%x status %d\n",
+ what, trans->write ? "write" : "read", trans,
+ trans->func->func, trans->offset,
+ trans->data ? *trans->data : 0, trans->status);
+}
+
+static int vexpress_config_schedule(struct vexpress_config_trans *trans)
+{
+ int status;
+ struct vexpress_config_bridge *bridge = trans->func->bridge;
+ unsigned long flags;
+
+ init_completion(&trans->completion);
+ trans->status = -EFAULT;
+
+ spin_lock_irqsave(&bridge->transactions_lock, flags);
+
+ vexpress_config_dump_trans("Executing", trans);
+
+ if (list_empty(&bridge->transactions))
+ status = bridge->info->func_exec(trans->func->func,
+ trans->offset, trans->write, trans->data);
+ else
+ status = VEXPRESS_CONFIG_STATUS_WAIT;
+
+ switch (status) {
+ case VEXPRESS_CONFIG_STATUS_DONE:
+ vexpress_config_dump_trans("Finished", trans);
+ trans->status = status;
+ break;
+ case VEXPRESS_CONFIG_STATUS_WAIT:
+ list_add_tail(&trans->list, &bridge->transactions);
+ break;
+ }
+
+ spin_unlock_irqrestore(&bridge->transactions_lock, flags);
+
+ return status;
+}
+
+void vexpress_config_complete(struct vexpress_config_bridge *bridge,
+ int status)
+{
+ struct vexpress_config_trans *trans;
+ unsigned long flags;
+
+ spin_lock_irqsave(&bridge->transactions_lock, flags);
+
+ trans = list_first_entry(&bridge->transactions,
+ struct vexpress_config_trans, list);
+ vexpress_config_dump_trans("Completed", trans);
+
+ trans->status = status;
+ list_del(&trans->list);
+
+ if (!list_empty(&bridge->transactions)) {
+ vexpress_config_dump_trans("Pending", trans);
+
+ bridge->info->func_exec(trans->func->func, trans->offset,
+ trans->write, trans->data);
+ }
+ spin_unlock_irqrestore(&bridge->transactions_lock, flags);
+
+ complete(&trans->completion);
+}
+
+int vexpress_config_wait(struct vexpress_config_trans *trans)
+{
+ wait_for_completion(&trans->completion);
+
+ return trans->status;
+}
+
+
+int vexpress_config_read(struct vexpress_config_func *func, int offset,
+ u32 *data)
+{
+ struct vexpress_config_trans trans = {
+ .func = func,
+ .offset = offset,
+ .write = false,
+ .data = data,
+ .status = 0,
+ };
+ int status = vexpress_config_schedule(&trans);
+
+ if (status == VEXPRESS_CONFIG_STATUS_WAIT)
+ status = vexpress_config_wait(&trans);
+
+ return status;
+}
+EXPORT_SYMBOL(vexpress_config_read);
+
+int vexpress_config_write(struct vexpress_config_func *func, int offset,
+ u32 data)
+{
+ struct vexpress_config_trans trans = {
+ .func = func,
+ .offset = offset,
+ .write = true,
+ .data = &data,
+ .status = 0,
+ };
+ int status = vexpress_config_schedule(&trans);
+
+ if (status == VEXPRESS_CONFIG_STATUS_WAIT)
+ status = vexpress_config_wait(&trans);
+
+ return status;
+}
+EXPORT_SYMBOL(vexpress_config_write);
diff --git a/drivers/mfd/vexpress-sysreg.c b/drivers/mfd/vexpress-sysreg.c
new file mode 100644
index 000000000000..733c06bd2d17
--- /dev/null
+++ b/drivers/mfd/vexpress-sysreg.c
@@ -0,0 +1,475 @@
+/*
+ * 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.
+ *
+ * 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.
+ *
+ * Copyright (C) 2012 ARM Limited
+ */
+
+#include <linux/err.h>
+#include <linux/gpio.h>
+#include <linux/io.h>
+#include <linux/leds.h>
+#include <linux/of_address.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/slab.h>
+#include <linux/stat.h>
+#include <linux/timer.h>
+#include <linux/vexpress.h>
+
+#define SYS_ID 0x000
+#define SYS_SW 0x004
+#define SYS_LED 0x008
+#define SYS_100HZ 0x024
+#define SYS_FLAGS 0x030
+#define SYS_FLAGSSET 0x030
+#define SYS_FLAGSCLR 0x034
+#define SYS_NVFLAGS 0x038
+#define SYS_NVFLAGSSET 0x038
+#define SYS_NVFLAGSCLR 0x03c
+#define SYS_MCI 0x048
+#define SYS_FLASH 0x04c
+#define SYS_CFGSW 0x058
+#define SYS_24MHZ 0x05c
+#define SYS_MISC 0x060
+#define SYS_DMA 0x064
+#define SYS_PROCID0 0x084
+#define SYS_PROCID1 0x088
+#define SYS_CFGDATA 0x0a0
+#define SYS_CFGCTRL 0x0a4
+#define SYS_CFGSTAT 0x0a8
+
+#define SYS_HBI_MASK 0xfff
+#define SYS_ID_HBI_SHIFT 16
+#define SYS_PROCIDx_HBI_SHIFT 0
+
+#define SYS_MCI_CARDIN (1 << 0)
+#define SYS_MCI_WPROT (1 << 1)
+
+#define SYS_FLASH_WPn (1 << 0)
+
+#define SYS_MISC_MASTERSITE (1 << 14)
+
+#define SYS_CFGCTRL_START (1 << 31)
+#define SYS_CFGCTRL_WRITE (1 << 30)
+#define SYS_CFGCTRL_DCC(n) (((n) & 0xf) << 26)
+#define SYS_CFGCTRL_FUNC(n) (((n) & 0x3f) << 20)
+#define SYS_CFGCTRL_SITE(n) (((n) & 0x3) << 16)
+#define SYS_CFGCTRL_POSITION(n) (((n) & 0xf) << 12)
+#define SYS_CFGCTRL_DEVICE(n) (((n) & 0xfff) << 0)
+
+#define SYS_CFGSTAT_ERR (1 << 1)
+#define SYS_CFGSTAT_COMPLETE (1 << 0)
+
+
+static void __iomem *vexpress_sysreg_base;
+static struct device *vexpress_sysreg_dev;
+static int vexpress_master_site;
+
+
+void vexpress_flags_set(u32 data)
+{
+ writel(~0, vexpress_sysreg_base + SYS_FLAGSCLR);
+ writel(data, vexpress_sysreg_base + SYS_FLAGSSET);
+}
+
+u32 vexpress_get_procid(int site)
+{
+ if (site == VEXPRESS_SITE_MASTER)
+ site = vexpress_master_site;
+
+ return readl(vexpress_sysreg_base + (site == VEXPRESS_SITE_DB1 ?
+ SYS_PROCID0 : SYS_PROCID1));
+}
+
+u32 vexpress_get_hbi(int site)
+{
+ u32 id;
+
+ switch (site) {
+ case VEXPRESS_SITE_MB:
+ id = readl(vexpress_sysreg_base + SYS_ID);
+ return (id >> SYS_ID_HBI_SHIFT) & SYS_HBI_MASK;
+ case VEXPRESS_SITE_MASTER:
+ case VEXPRESS_SITE_DB1:
+ case VEXPRESS_SITE_DB2:
+ id = vexpress_get_procid(site);
+ return (id >> SYS_PROCIDx_HBI_SHIFT) & SYS_HBI_MASK;
+ }
+
+ return ~0;
+}
+
+void __iomem *vexpress_get_24mhz_clock_base(void)
+{
+ return vexpress_sysreg_base + SYS_24MHZ;
+}
+
+
+static void vexpress_sysreg_find_prop(struct device_node *node,
+ const char *name, u32 *val)
+{
+ of_node_get(node);
+ while (node) {
+ if (of_property_read_u32(node, name, val) == 0) {
+ of_node_put(node);
+ return;
+ }
+ node = of_get_next_parent(node);
+ }
+}
+
+unsigned __vexpress_get_site(struct device *dev, struct device_node *node)
+{
+ u32 site = 0;
+
+ WARN_ON(dev && node && dev->of_node != node);
+ if (dev && !node)
+ node = dev->of_node;
+
+ if (node) {
+ vexpress_sysreg_find_prop(node, "arm,vexpress,site", &site);
+ } else if (dev && dev->bus == &platform_bus_type) {
+ struct platform_device *pdev = to_platform_device(dev);
+
+ if (pdev->num_resources == 1 &&
+ pdev->resource[0].flags == IORESOURCE_BUS)
+ site = pdev->resource[0].start;
+ } else if (dev && strncmp(dev_name(dev), "ct:", 3) == 0) {
+ site = VEXPRESS_SITE_MASTER;
+ }
+
+ if (site == VEXPRESS_SITE_MASTER)
+ site = vexpress_master_site;
+
+ return site;
+}
+
+
+struct vexpress_sysreg_config_func {
+ u32 template;
+ u32 device;
+};
+
+static struct vexpress_config_bridge *vexpress_sysreg_config_bridge;
+static struct timer_list vexpress_sysreg_config_timer;
+static u32 *vexpress_sysreg_config_data;
+static int vexpress_sysreg_config_tries;
+
+static void *vexpress_sysreg_config_func_get(struct device *dev,
+ struct device_node *node)
+{
+ struct vexpress_sysreg_config_func *config_func;
+ u32 site;
+ u32 position = 0;
+ u32 dcc = 0;
+ u32 func_device[2];
+ int err = -EFAULT;
+
+ if (node) {
+ of_node_get(node);
+ vexpress_sysreg_find_prop(node, "arm,vexpress,site", &site);
+ vexpress_sysreg_find_prop(node, "arm,vexpress,position",
+ &position);
+ vexpress_sysreg_find_prop(node, "arm,vexpress,dcc", &dcc);
+ err = of_property_read_u32_array(node,
+ "arm,vexpress-sysreg,func", func_device,
+ ARRAY_SIZE(func_device));
+ of_node_put(node);
+ } else if (dev && dev->bus == &platform_bus_type) {
+ struct platform_device *pdev = to_platform_device(dev);
+
+ if (pdev->num_resources == 1 &&
+ pdev->resource[0].flags == IORESOURCE_BUS) {
+ site = pdev->resource[0].start;
+ func_device[0] = pdev->resource[0].end;
+ func_device[1] = pdev->id;
+ err = 0;
+ }
+ }
+ if (err)
+ return NULL;
+
+ config_func = kzalloc(sizeof(*config_func), GFP_KERNEL);
+ if (!config_func)
+ return NULL;
+
+ config_func->template = SYS_CFGCTRL_DCC(dcc);
+ config_func->template |= SYS_CFGCTRL_FUNC(func_device[0]);
+ config_func->template |= SYS_CFGCTRL_SITE(site == VEXPRESS_SITE_MASTER ?
+ vexpress_master_site : site);
+ config_func->template |= SYS_CFGCTRL_POSITION(position);
+ config_func->device |= func_device[1];
+
+ dev_dbg(vexpress_sysreg_dev, "func 0x%p = 0x%x, %d\n", config_func,
+ config_func->template, config_func->device);
+
+ return config_func;
+}
+
+static void vexpress_sysreg_config_func_put(void *func)
+{
+ kfree(func);
+}
+
+static int vexpress_sysreg_config_func_exec(void *func, int offset,
+ bool write, u32 *data)
+{
+ int status;
+ struct vexpress_sysreg_config_func *config_func = func;
+ u32 command;
+
+ if (WARN_ON(!vexpress_sysreg_base))
+ return -ENOENT;
+
+ command = readl(vexpress_sysreg_base + SYS_CFGCTRL);
+ if (WARN_ON(command & SYS_CFGCTRL_START))
+ return -EBUSY;
+
+ command = SYS_CFGCTRL_START;
+ command |= write ? SYS_CFGCTRL_WRITE : 0;
+ command |= config_func->template;
+ command |= SYS_CFGCTRL_DEVICE(config_func->device + offset);
+
+ /* Use a canary for reads */
+ if (!write)
+ *data = 0xdeadbeef;
+
+ dev_dbg(vexpress_sysreg_dev, "command %x, data %x\n",
+ command, *data);
+ writel(*data, vexpress_sysreg_base + SYS_CFGDATA);
+ writel(0, vexpress_sysreg_base + SYS_CFGSTAT);
+ writel(command, vexpress_sysreg_base + SYS_CFGCTRL);
+ mb();
+
+ if (vexpress_sysreg_dev) {
+ /* Schedule completion check */
+ if (!write)
+ vexpress_sysreg_config_data = data;
+ vexpress_sysreg_config_tries = 100;
+ mod_timer(&vexpress_sysreg_config_timer,
+ jiffies + usecs_to_jiffies(100));
+ status = VEXPRESS_CONFIG_STATUS_WAIT;
+ } else {
+ /* Early execution, no timer available, have to spin */
+ u32 cfgstat;
+
+ do {
+ cpu_relax();
+ cfgstat = readl(vexpress_sysreg_base + SYS_CFGSTAT);
+ } while (!cfgstat);
+
+ if (!write && (cfgstat & SYS_CFGSTAT_COMPLETE))
+ *data = readl(vexpress_sysreg_base + SYS_CFGDATA);
+ status = VEXPRESS_CONFIG_STATUS_DONE;
+
+ if (cfgstat & SYS_CFGSTAT_ERR)
+ status = -EINVAL;
+ }
+
+ return status;
+}
+
+struct vexpress_config_bridge_info vexpress_sysreg_config_bridge_info = {
+ .name = "vexpress-sysreg",
+ .func_get = vexpress_sysreg_config_func_get,
+ .func_put = vexpress_sysreg_config_func_put,
+ .func_exec = vexpress_sysreg_config_func_exec,
+};
+
+static void vexpress_sysreg_config_complete(unsigned long data)
+{
+ int status = VEXPRESS_CONFIG_STATUS_DONE;
+ u32 cfgstat = readl(vexpress_sysreg_base + SYS_CFGSTAT);
+
+ if (cfgstat & SYS_CFGSTAT_ERR)
+ status = -EINVAL;
+ if (!vexpress_sysreg_config_tries--)
+ status = -ETIMEDOUT;
+
+ if (status < 0) {
+ dev_err(vexpress_sysreg_dev, "error %d\n", status);
+ } else if (!(cfgstat & SYS_CFGSTAT_COMPLETE)) {
+ mod_timer(&vexpress_sysreg_config_timer,
+ jiffies + usecs_to_jiffies(50));
+ return;
+ }
+
+ if (vexpress_sysreg_config_data) {
+ *vexpress_sysreg_config_data = readl(vexpress_sysreg_base +
+ SYS_CFGDATA);
+ dev_dbg(vexpress_sysreg_dev, "read data %x\n",
+ *vexpress_sysreg_config_data);
+ vexpress_sysreg_config_data = NULL;
+ }
+
+ vexpress_config_complete(vexpress_sysreg_config_bridge, status);
+}
+
+
+void __init vexpress_sysreg_early_init(void __iomem *base)
+{
+ struct device_node *node = of_find_compatible_node(NULL, NULL,
+ "arm,vexpress-sysreg");
+
+ if (node)
+ base = of_iomap(node, 0);
+
+ if (WARN_ON(!base))
+ return;
+
+ vexpress_sysreg_base = base;
+
+ if (readl(vexpress_sysreg_base + SYS_MISC) & SYS_MISC_MASTERSITE)
+ vexpress_master_site = VEXPRESS_SITE_DB2;
+ else
+ vexpress_master_site = VEXPRESS_SITE_DB1;
+
+ vexpress_sysreg_config_bridge = vexpress_config_bridge_register(
+ node, &vexpress_sysreg_config_bridge_info);
+ WARN_ON(!vexpress_sysreg_config_bridge);
+}
+
+void __init vexpress_sysreg_of_early_init(void)
+{
+ vexpress_sysreg_early_init(NULL);
+}
+
+
+static struct vexpress_sysreg_gpio {
+ unsigned long reg;
+ u32 value;
+} vexpress_sysreg_gpios[] = {
+ [VEXPRESS_GPIO_MMC_CARDIN] = {
+ .reg = SYS_MCI,
+ .value = SYS_MCI_CARDIN,
+ },
+ [VEXPRESS_GPIO_MMC_WPROT] = {
+ .reg = SYS_MCI,
+ .value = SYS_MCI_WPROT,
+ },
+ [VEXPRESS_GPIO_FLASH_WPn] = {
+ .reg = SYS_FLASH,
+ .value = SYS_FLASH_WPn,
+ },
+};
+
+static int vexpress_sysreg_gpio_direction_input(struct gpio_chip *chip,
+ unsigned offset)
+{
+ return 0;
+}
+
+static int vexpress_sysreg_gpio_direction_output(struct gpio_chip *chip,
+ unsigned offset, int value)
+{
+ return 0;
+}
+
+static int vexpress_sysreg_gpio_get(struct gpio_chip *chip,
+ unsigned offset)
+{
+ struct vexpress_sysreg_gpio *gpio = &vexpress_sysreg_gpios[offset];
+ u32 reg_value = readl(vexpress_sysreg_base + gpio->reg);
+
+ return !!(reg_value & gpio->value);
+}
+
+static void vexpress_sysreg_gpio_set(struct gpio_chip *chip,
+ unsigned offset, int value)
+{
+ struct vexpress_sysreg_gpio *gpio = &vexpress_sysreg_gpios[offset];
+ u32 reg_value = readl(vexpress_sysreg_base + gpio->reg);
+
+ if (value)
+ reg_value |= gpio->value;
+ else
+ reg_value &= ~gpio->value;
+
+ writel(reg_value, vexpress_sysreg_base + gpio->reg);
+}
+
+static struct gpio_chip vexpress_sysreg_gpio_chip = {
+ .label = "vexpress-sysreg",
+ .direction_input = vexpress_sysreg_gpio_direction_input,
+ .direction_output = vexpress_sysreg_gpio_direction_output,
+ .get = vexpress_sysreg_gpio_get,
+ .set = vexpress_sysreg_gpio_set,
+ .ngpio = ARRAY_SIZE(vexpress_sysreg_gpios),
+ .base = 0,
+};
+
+
+static ssize_t vexpress_sysreg_sys_id_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ return sprintf(buf, "0x%08x\n", readl(vexpress_sysreg_base + SYS_ID));
+}
+
+DEVICE_ATTR(sys_id, S_IRUGO, vexpress_sysreg_sys_id_show, NULL);
+
+static int __devinit vexpress_sysreg_probe(struct platform_device *pdev)
+{
+ int err;
+ struct resource *res = platform_get_resource(pdev,
+ IORESOURCE_MEM, 0);
+
+ if (!devm_request_mem_region(&pdev->dev, res->start,
+ resource_size(res), pdev->name)) {
+ dev_err(&pdev->dev, "Failed to request memory region!\n");
+ return -EBUSY;
+ }
+
+ if (!vexpress_sysreg_base)
+ vexpress_sysreg_base = devm_ioremap(&pdev->dev, res->start,
+ resource_size(res));
+
+ if (!vexpress_sysreg_base) {
+ dev_err(&pdev->dev, "Failed to obtain base address!\n");
+ return -EFAULT;
+ }
+
+ setup_timer(&vexpress_sysreg_config_timer,
+ vexpress_sysreg_config_complete, 0);
+
+ vexpress_sysreg_gpio_chip.dev = &pdev->dev;
+ err = gpiochip_add(&vexpress_sysreg_gpio_chip);
+ if (err) {
+ vexpress_config_bridge_unregister(
+ vexpress_sysreg_config_bridge);
+ dev_err(&pdev->dev, "Failed to register GPIO chip! (%d)\n",
+ err);
+ return err;
+ }
+
+ vexpress_sysreg_dev = &pdev->dev;
+
+ device_create_file(vexpress_sysreg_dev, &dev_attr_sys_id);
+
+ return 0;
+}
+
+static const struct of_device_id vexpress_sysreg_match[] = {
+ { .compatible = "arm,vexpress-sysreg", },
+ {},
+};
+
+static struct platform_driver vexpress_sysreg_driver = {
+ .driver = {
+ .name = "vexpress-sysreg",
+ .of_match_table = vexpress_sysreg_match,
+ },
+ .probe = vexpress_sysreg_probe,
+};
+
+static int __init vexpress_sysreg_init(void)
+{
+ return platform_driver_register(&vexpress_sysreg_driver);
+}
+core_initcall(vexpress_sysreg_init);
diff --git a/drivers/mfd/wm5102-tables.c b/drivers/mfd/wm5102-tables.c
index 14490cc785d2..3141c4a173a7 100644
--- a/drivers/mfd/wm5102-tables.c
+++ b/drivers/mfd/wm5102-tables.c
@@ -258,6 +258,7 @@ static const struct reg_default wm5102_reg_default[] = {
{ 0x00000154, 0x0000 }, /* R340 - Rate Estimator 3 */
{ 0x00000155, 0x0000 }, /* R341 - Rate Estimator 4 */
{ 0x00000156, 0x0000 }, /* R342 - Rate Estimator 5 */
+ { 0x00000161, 0x0000 }, /* R353 - Dynamic Frequency Scaling 1 */
{ 0x00000171, 0x0000 }, /* R369 - FLL1 Control 1 */
{ 0x00000172, 0x0008 }, /* R370 - FLL1 Control 2 */
{ 0x00000173, 0x0018 }, /* R371 - FLL1 Control 3 */
@@ -1047,6 +1048,7 @@ static bool wm5102_readable_register(struct device *dev, unsigned int reg)
case ARIZONA_RATE_ESTIMATOR_3:
case ARIZONA_RATE_ESTIMATOR_4:
case ARIZONA_RATE_ESTIMATOR_5:
+ case ARIZONA_DYNAMIC_FREQUENCY_SCALING_1:
case ARIZONA_FLL1_CONTROL_1:
case ARIZONA_FLL1_CONTROL_2:
case ARIZONA_FLL1_CONTROL_3:
@@ -1079,6 +1081,7 @@ static bool wm5102_readable_register(struct device *dev, unsigned int reg)
case ARIZONA_FLL2_GPIO_CLOCK:
case ARIZONA_MIC_CHARGE_PUMP_1:
case ARIZONA_LDO1_CONTROL_1:
+ case ARIZONA_LDO1_CONTROL_2:
case ARIZONA_LDO2_CONTROL_1:
case ARIZONA_MIC_BIAS_CTRL_1:
case ARIZONA_MIC_BIAS_CTRL_2:
diff --git a/drivers/mfd/wm8994-core.c b/drivers/mfd/wm8994-core.c
index c7f62ac544ad..bcb226ff9d2b 100644
--- a/drivers/mfd/wm8994-core.c
+++ b/drivers/mfd/wm8994-core.c
@@ -401,13 +401,19 @@ static const struct reg_default wm1811_reva_patch[] = {
*/
static int wm8994_device_init(struct wm8994 *wm8994, int irq)
{
- struct wm8994_pdata *pdata = wm8994->dev->platform_data;
+ struct wm8994_pdata *pdata;
struct regmap_config *regmap_config;
const struct reg_default *regmap_patch = NULL;
const char *devname;
int ret, i, patch_regs;
int pulls = 0;
+ if (dev_get_platdata(wm8994->dev)) {
+ pdata = dev_get_platdata(wm8994->dev);
+ wm8994->pdata = *pdata;
+ }
+ pdata = &wm8994->pdata;
+
dev_set_drvdata(wm8994->dev, wm8994);
/* Add the on-chip regulators first for bootstrapping */
@@ -604,24 +610,21 @@ static int wm8994_device_init(struct wm8994 *wm8994, int irq)
}
}
- if (pdata) {
- wm8994->irq_base = pdata->irq_base;
- wm8994->gpio_base = pdata->gpio_base;
-
- /* GPIO configuration is only applied if it's non-zero */
- for (i = 0; i < ARRAY_SIZE(pdata->gpio_defaults); i++) {
- if (pdata->gpio_defaults[i]) {
- wm8994_set_bits(wm8994, WM8994_GPIO_1 + i,
- 0xffff,
- pdata->gpio_defaults[i]);
- }
+ wm8994->irq_base = pdata->irq_base;
+ wm8994->gpio_base = pdata->gpio_base;
+
+ /* GPIO configuration is only applied if it's non-zero */
+ for (i = 0; i < ARRAY_SIZE(pdata->gpio_defaults); i++) {
+ if (pdata->gpio_defaults[i]) {
+ wm8994_set_bits(wm8994, WM8994_GPIO_1 + i,
+ 0xffff, pdata->gpio_defaults[i]);
}
+ }
- wm8994->ldo_ena_always_driven = pdata->ldo_ena_always_driven;
+ wm8994->ldo_ena_always_driven = pdata->ldo_ena_always_driven;
- if (pdata->spkmode_pu)
- pulls |= WM8994_SPKMODE_PU;
- }
+ if (pdata->spkmode_pu)
+ pulls |= WM8994_SPKMODE_PU;
/* Disable unneeded pulls */
wm8994_set_bits(wm8994, WM8994_PULL_CONTROL_2,
generated by cgit v1.2.3 (git 2.0.4) at 2025-02-02 23:32:12 +0000