Commit cd7bd02d authored by Rafael J. Wysocki's avatar Rafael J. Wysocki
Browse files

ACPI / PM: Move runtime remote wakeup setup routine to device_pm.c 



The ACPI function for setting up devices to do runtime remote
wakeup is now located in drivers/acpi/sleep.c, but
drivers/acpi/device_pm.c is a more logical place for it, so move it
there.

No functional changes should result from this modification.

Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 86b3832c

drivers/acpi/device_pm.c

+39 −0
Original line number Diff line number Diff line
@@ -26,6 +26,7 @@ 
#include <linux/export.h>

#include <linux/mutex.h>

#include <linux/pm_qos.h>

#include <linux/pm_runtime.h>



#include <acpi/acpi.h>

#include <acpi/acpi_bus.h>
@@ -196,3 +197,41 @@ int acpi_device_power_state(struct device *dev, struct acpi_device *adev, 
	return d_max;

}

EXPORT_SYMBOL_GPL(acpi_device_power_state);



#ifdef CONFIG_PM_RUNTIME

/**

 * acpi_pm_device_run_wake - Enable/disable remote wakeup for given device.

 * @phys_dev: Device to enable/disable the platform to wake up.

 * @enable: Whether to enable or disable the wakeup functionality.

 *

 * Find the ACPI device object corresponding to @phys_dev and try to

 * enable/disable the GPE associated with it, so that it can generate

 * wakeup signals for the device in response to external (remote) events.

 */

int acpi_pm_device_run_wake(struct device *phys_dev, bool enable)

{

	struct acpi_device *dev;

	acpi_handle handle;



	if (!device_run_wake(phys_dev))

		return -EINVAL;



	handle = DEVICE_ACPI_HANDLE(phys_dev);

	if (!handle || ACPI_FAILURE(acpi_bus_get_device(handle, &dev))) {

		dev_dbg(phys_dev, "ACPI handle has no context in %s!\n",

			__func__);

		return -ENODEV;

	}



	if (enable) {

		acpi_enable_wakeup_device_power(dev, ACPI_STATE_S0);

		acpi_enable_gpe(dev->wakeup.gpe_device, dev->wakeup.gpe_number);

	} else {

		acpi_disable_gpe(dev->wakeup.gpe_device, dev->wakeup.gpe_number);

		acpi_disable_wakeup_device_power(dev);

	}



	return 0;

}

EXPORT_SYMBOL(acpi_pm_device_run_wake);

#endif /* CONFIG_PM_RUNTIME */

drivers/acpi/sleep.c

+0 −39
Original line number Diff line number Diff line
@@ -18,7 +18,6 @@ 
#include <linux/reboot.h>

#include <linux/acpi.h>

#include <linux/module.h>

#include <linux/pm_runtime.h>



#include <asm/io.h>
@@ -708,44 +707,6 @@ int acpi_pm_device_sleep_state(struct device *dev, int *d_min_p, int d_max_in) 
EXPORT_SYMBOL(acpi_pm_device_sleep_state);

#endif /* CONFIG_PM */



#ifdef CONFIG_PM_RUNTIME

/**

 * acpi_pm_device_run_wake - Enable/disable remote wakeup for given device.

 * @phys_dev: Device to enable/disable the platform to wake up.

 * @enable: Whether to enable or disable the wakeup functionality.

 *

 * Find the ACPI device object corresponding to @phys_dev and try to

 * enable/disable the GPE associated with it, so that it can generate

 * wakeup signals for the device in response to external (remote) events.

 */

int acpi_pm_device_run_wake(struct device *phys_dev, bool enable)

{

	struct acpi_device *dev;

	acpi_handle handle;



	if (!device_run_wake(phys_dev))

		return -EINVAL;



	handle = DEVICE_ACPI_HANDLE(phys_dev);

	if (!handle || ACPI_FAILURE(acpi_bus_get_device(handle, &dev))) {

		dev_dbg(phys_dev, "ACPI handle has no context in %s!\n",

			__func__);

		return -ENODEV;

	}



	if (enable) {

		acpi_enable_wakeup_device_power(dev, ACPI_STATE_S0);

		acpi_enable_gpe(dev->wakeup.gpe_device, dev->wakeup.gpe_number);

	} else {

		acpi_disable_gpe(dev->wakeup.gpe_device, dev->wakeup.gpe_number);

		acpi_disable_wakeup_device_power(dev);

	}



	return 0;

}

EXPORT_SYMBOL(acpi_pm_device_run_wake);

#endif /* CONFIG_PM_RUNTIME */



#ifdef CONFIG_PM_SLEEP

/**

 * acpi_pm_device_sleep_wake - Enable or disable device to wake up the system.

CRA Git | Maintained and supported by SUSTech CRA and CCSE