HID: usbhid: Implement may_wakeup ll-driver callback

Without a ll-driver callback hid_hw_may_wakeup() will return:
device_may_wakeup(hdev->dev.parent), usb_hid_driver instantiated hid
devices have their parent set to the usb-interface to which the
usb_hid_driver is bound, but the power/wakeup* sysfs attributes are
part of the usb-device.

Add a may_wakeup ll-driver callback which calls device_may_wakeup()
on the usb-device instead.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index 4e9077363c962c0e5425d698887ada7096cf4731..06130dc431a0494762fec3a9e2187ffdc215add5 100644 (file)
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -1304,6 +1304,13 @@ static int usbhid_idle(struct hid_device *hid, int report, int idle,
        return hid_set_idle(dev, ifnum, report, idle);
 }
 
+static bool usbhid_may_wakeup(struct hid_device *hid)
+{
+       struct usb_device *dev = hid_to_usb_dev(hid);
+
+       return device_may_wakeup(&dev->dev);
+}
+
 struct hid_ll_driver usb_hid_driver = {
        .parse = usbhid_parse,
        .start = usbhid_start,
@@ -1316,6 +1323,7 @@ struct hid_ll_driver usb_hid_driver = {
        .raw_request = usbhid_raw_request,
        .output_report = usbhid_output_report,
        .idle = usbhid_idle,
+       .may_wakeup = usbhid_may_wakeup,
 };
 EXPORT_SYMBOL_GPL(usb_hid_driver);