summaryrefslogtreecommitdiff
path: root/include/linux/device.h
diff options
context:
space:
mode:
authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2015-03-16 23:49:03 +0100
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2015-03-16 23:49:03 +0100
commitce793486e23e0162a732c605189c8028e0910e86 (patch)
treebc36cffe7005afecc2f9db436dedd107773108b0 /include/linux/device.h
parent06e5801b8cb3fc057d88cb4dc03c0b64b2744cda (diff)
driver core / ACPI: Represent ACPI companions using fwnode_handle
Now that we have struct fwnode_handle, we can use that to point to ACPI companions from struct device objects instead of pointing to struct acpi_device directly. There are two benefits from that. First, the somewhat ugly and hackish struct acpi_dev_node can be dropped and, second, the same struct fwnode_handle pointer can be used in the future to point to other (non-ACPI) firmware device node types. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Grant Likely <grant.likely@linaro.org>
Diffstat (limited to 'include/linux/device.h')
-rw-r--r--include/linux/device.h13
1 files changed, 3 insertions, 10 deletions
diff --git a/include/linux/device.h b/include/linux/device.h
index 0eb8ee2dc6d1..badef20b876a 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -38,6 +38,7 @@ struct class;
struct subsys_private;
struct bus_type;
struct device_node;
+struct fwnode_handle;
struct iommu_ops;
struct iommu_group;
@@ -650,14 +651,6 @@ struct device_dma_parameters {
unsigned long segment_boundary_mask;
};
-struct acpi_device;
-
-struct acpi_dev_node {
-#ifdef CONFIG_ACPI
- struct acpi_device *companion;
-#endif
-};
-
/**
* struct device - The basic device structure
* @parent: The device's "parent" device, the device to which it is attached.
@@ -703,7 +696,7 @@ struct acpi_dev_node {
* @cma_area: Contiguous memory area for dma allocations
* @archdata: For arch-specific additions.
* @of_node: Associated device tree node.
- * @acpi_node: Associated ACPI device node.
+ * @fwnode: Associated device node supplied by platform firmware.
* @devt: For creating the sysfs "dev".
* @id: device instance
* @devres_lock: Spinlock to protect the resource of the device.
@@ -779,7 +772,7 @@ struct device {
struct dev_archdata archdata;
struct device_node *of_node; /* associated device tree node */
- struct acpi_dev_node acpi_node; /* associated ACPI device node */
+ struct fwnode_handle *fwnode; /* firmware device node */
dev_t devt; /* dev_t, creates the sysfs "dev" */
u32 id; /* device instance */