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Commit ee8193ee authored by Rafael J. Wysocki's avatar Rafael J. Wysocki
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ACPI: PM: Print debug messages on device power state changes 



Add an acpi_handle_debug() statement to acpi_device_set_power() to
allow ACPI device power state changes to be tracked.

Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent e21a712a

drivers/acpi/device_pm.c

+4 −0
Original line number Diff line number Diff line
@@ -166,6 +166,10 @@ int acpi_device_set_power(struct acpi_device *device, int state) 
	    || (state < ACPI_STATE_D0) || (state > ACPI_STATE_D3_COLD))

		return -EINVAL;



	acpi_handle_debug(device->handle, "Power state change: %s -> %s\n",

			  acpi_power_state_string(device->power.state),

			  acpi_power_state_string(state));



	/* Make sure this is a valid target state */



	/* There is a special case for D0 addressed below. */