ACPI / PM: Use ACPI_COMPANION() to get ACPI companions of devices
The ACPI device PM code in device_pm.c uses a special function,
acpi_dev_pm_get_node(), to obtain an ACPI companion object of a given
device. However, that is not necessary any more after recent changes
that introduced the ACPI_COMPANION() macro serving exactly the same
purpose, but working in a much more straightforward way. For this
reason, drop acpi_dev_pm_get_node() and use ACPI_COMPANION() instead
of it everywhere.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c
index b3480cf..c14aa9a 100644
--- a/drivers/acpi/device_pm.c
+++ b/drivers/acpi/device_pm.c
@@ -713,18 +713,6 @@
#endif /* CONFIG_PM_SLEEP */
/**
- * acpi_dev_pm_get_node - Get ACPI device node for the given physical device.
- * @dev: Device to get the ACPI node for.
- */
-struct acpi_device *acpi_dev_pm_get_node(struct device *dev)
-{
- acpi_handle handle = ACPI_HANDLE(dev);
- struct acpi_device *adev;
-
- return handle && !acpi_bus_get_device(handle, &adev) ? adev : NULL;
-}
-
-/**
* acpi_dev_pm_low_power - Put ACPI device into a low-power state.
* @dev: Device to put into a low-power state.
* @adev: ACPI device node corresponding to @dev.
@@ -764,7 +752,7 @@
*/
int acpi_dev_runtime_suspend(struct device *dev)
{
- struct acpi_device *adev = acpi_dev_pm_get_node(dev);
+ struct acpi_device *adev = ACPI_COMPANION(dev);
bool remote_wakeup;
int error;
@@ -795,7 +783,7 @@
*/
int acpi_dev_runtime_resume(struct device *dev)
{
- struct acpi_device *adev = acpi_dev_pm_get_node(dev);
+ struct acpi_device *adev = ACPI_COMPANION(dev);
int error;
if (!adev)
@@ -848,7 +836,7 @@
*/
int acpi_dev_suspend_late(struct device *dev)
{
- struct acpi_device *adev = acpi_dev_pm_get_node(dev);
+ struct acpi_device *adev = ACPI_COMPANION(dev);
u32 target_state;
bool wakeup;
int error;
@@ -880,7 +868,7 @@
*/
int acpi_dev_resume_early(struct device *dev)
{
- struct acpi_device *adev = acpi_dev_pm_get_node(dev);
+ struct acpi_device *adev = ACPI_COMPANION(dev);
int error;
if (!adev)
@@ -971,7 +959,7 @@
*/
int acpi_dev_pm_attach(struct device *dev, bool power_on)
{
- struct acpi_device *adev = acpi_dev_pm_get_node(dev);
+ struct acpi_device *adev = ACPI_COMPANION(dev);
if (!adev)
return -ENODEV;
@@ -1003,7 +991,7 @@
*/
void acpi_dev_pm_detach(struct device *dev, bool power_off)
{
- struct acpi_device *adev = acpi_dev_pm_get_node(dev);
+ struct acpi_device *adev = ACPI_COMPANION(dev);
if (adev && dev->pm_domain == &acpi_general_pm_domain) {
dev->pm_domain = NULL;