tree 12735f923ad670c405efb5ab34c188dc06ad15f7
parent 9574323c39d1f8359a04843075d89c9f32d8b7e6
author Andiry Xu <andiry.xu@amd.com> 1316812792 -0700
committer Greg Kroah-Hartman <gregkh@suse.de> 1317077470 -0700

xHCI: set USB2 hardware LPM

If the device pass the USB2 software LPM and the host supports hardware
LPM, enable hardware LPM for the device to let the host decide when to
put the link into lower power state.

If hardware LPM is enabled for a port and driver wants to put it into
suspend, it must first disable hardware LPM, resume the port into U0,
and then suspend the port.

Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>