tree 55e23959337683a5dc0d5b3b00c8c5f83b61ed7e
parent 40f122f343797d02390c5a157372cac0c5b50bb7
author Alan Stern <stern@rowland.harvard.edu> 1164038819 -0500
committer Greg Kroah-Hartman <gregkh@suse.de> 1165011952 -0800

OHCI: make autostop conditional on CONFIG_PM

Unlike UHCI, OHCI does not exert any DMA load on the system when no
devices are connected.  Consequently there is no advantage to doing
an autostop other than the power savings, so we shouldn't compile the
necessary code unless CONFIG_PM is enabled.

This patch (as820) makes the root-hub suspend and resume routines
conditional on CONFIG_PM.  It also prevents autostop from activating
if the device_may_wakeup flag isn't set; some people use this flag to
alert the driver about Resume-Detect bugs in the hardware.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>