When the system goes to sleep and afterwards resumes, a significant amount of time is spent suspending and resuming devices that were already runtime-suspended. By setting the power.force_direct_complete flag, the PM core will ignore the state of descendant devices and the device will be let in runtime-suspend. Signed-off-by: Tomeu Vizoso <tomeu.vizoso@xxxxxxxxxxxxx> --- drivers/media/usb/uvc/uvc_driver.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c index 5970dd6..ae75a70 100644 --- a/drivers/media/usb/uvc/uvc_driver.c +++ b/drivers/media/usb/uvc/uvc_driver.c @@ -1945,6 +1945,8 @@ static int uvc_probe(struct usb_interface *intf, "supported.\n", ret); } + intf->dev.parent->power.force_direct_complete = true; + uvc_trace(UVC_TRACE_PROBE, "UVC device initialized.\n"); usb_enable_autosuspend(udev); return 0; -- 2.3.5 -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
