Commit 5b6a8f14 authored by Rafael J. Wysocki's avatar Rafael J. Wysocki
Browse files

ACPI: PM: Emit debug messages when enabling/disabling wakeup power 



Print additional debug messages when enabling and disabling wakeup
power for an ACPI device object to facilitate more fine-grained
debugging of problems in that area.

Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 13605725

drivers/acpi/power.c

+12 −0
Original line number Diff line number Diff line
@@ -716,6 +716,9 @@ int acpi_enable_wakeup_device_power(struct acpi_device *dev, int sleep_state) 


	mutex_lock(&acpi_device_lock);



	dev_dbg(&dev->dev, "Enabling wakeup power (count %d)\n",

		dev->wakeup.prepare_count);



	if (dev->wakeup.prepare_count++)

		goto out;
@@ -734,8 +737,11 @@ int acpi_enable_wakeup_device_power(struct acpi_device *dev, int sleep_state) 
	if (err) {

		acpi_power_off_list(&dev->wakeup.resources);

		dev->wakeup.prepare_count = 0;

		goto out;

	}



	dev_dbg(&dev->dev, "Wakeup power enabled\n");



 out:

	mutex_unlock(&acpi_device_lock);

	return err;
@@ -757,6 +763,9 @@ int acpi_disable_wakeup_device_power(struct acpi_device *dev) 


	mutex_lock(&acpi_device_lock);



	dev_dbg(&dev->dev, "Disabling wakeup power (count %d)\n",

		dev->wakeup.prepare_count);



	/* Do nothing if wakeup power has not been enabled for this device. */

	if (dev->wakeup.prepare_count <= 0)

		goto out;
@@ -782,8 +791,11 @@ int acpi_disable_wakeup_device_power(struct acpi_device *dev) 
	if (err) {

		dev_err(&dev->dev, "Cannot turn off wakeup power resources\n");

		dev->wakeup.flags.valid = 0;

		goto out;

	}



	dev_dbg(&dev->dev, "Wakeup power disabled\n");



 out:

	mutex_unlock(&acpi_device_lock);

	return err;