Commit a8425292 authored by Rupesh Tatiya's avatar Rupesh Tatiya Committed by Greg Kroah-Hartman
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usb: Enable LPM for USB 2.01+ full-speed devices 



USB 2.01+ full-speed devices can have extended descriptor as well
and can support LPM.

Signed-off-by: default avatarRupesh Tatiya <rtatiya@codeaurora.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 7d203a9e

drivers/usb/core/hub.c

+1 −1
Original line number Original line Diff line number Diff line
@@ -127,7 +127,7 @@ static int usb_device_supports_lpm(struct usb_device *udev) 
	/* USB 2.1 (and greater) devices indicate LPM support through

	/* USB 2.1 (and greater) devices indicate LPM support through

	 * their USB 2.0 Extended Capabilities BOS descriptor.

	 * their USB 2.0 Extended Capabilities BOS descriptor.

	 */

	 */

	if (udev->speed == USB_SPEED_HIGH) {

	if (udev->speed == USB_SPEED_HIGH || udev->speed == USB_SPEED_FULL) {

		if (udev->bos->ext_cap &&

		if (udev->bos->ext_cap &&

			(USB_LPM_SUPPORT &

			(USB_LPM_SUPPORT &

			 le32_to_cpu(udev->bos->ext_cap->bmAttributes)))

			 le32_to_cpu(udev->bos->ext_cap->bmAttributes)))