HID: enable hid device to suspend/resume asynchronously

Now, PM core supports asynchronous suspend/resume mode for devices
during system suspend/resume, and the power state transition of one
device may be completed in separate kernel thread. PM core ensures
all power state transition timing dependency between devices. This
patch enables hid devices to suspend/resume asynchronously. This
will take advantage of multicore and improve system suspend/resume
speed.

Signed-off-by: Zhonghui Fu <zhonghui.fu@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index c6f7a694f67a189daaae4be80645fb8773bfd2d5..e9ef0dd4fd893d63e50df4b95edf9e8897b6fd39 100644 (file)
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -2660,6 +2660,7 @@ struct hid_device *hid_allocate_device(void)
        device_initialize(&hdev->dev);
        hdev->dev.release = hid_device_release;
        hdev->dev.bus = &hid_bus_type;
+       device_enable_async_suspend(&hdev->dev);
 
        hid_close_report(hdev);