1 files changed, 9 insertions, 0 deletions

diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h
index bbb946437070..7f855d50cdf5 100644
--- a/include/linux/usb/hcd.h
+++ b/include/linux/usb/hcd.h
@@ -344,6 +344,15 @@ struct hc_driver {
                  */
         int     (*update_device)(struct usb_hcd *, struct usb_device *);
         int     (*set_usb2_hw_lpm)(struct usb_hcd *, struct usb_device *, int);
+        /* USB 3.0 Link Power Management */
+                /* Returns the USB3 hub-encoded value for the U1/U2 timeout. */
+        int     (*enable_usb3_lpm_timeout)(struct usb_hcd *,
+                        struct usb_device *, enum usb3_link_state state);
+                /* The xHCI host controller can still fail the command to
+                 * disable the LPM timeouts, so this can return an error code.
+                 */
+        int     (*disable_usb3_lpm_timeout)(struct usb_hcd *,
+                        struct usb_device *, enum usb3_link_state state);
 };
 
 extern int usb_hcd_link_urb_to_ep(struct usb_hcd *hcd, struct urb *urb);