tree 26c7155074db312ecd103f2d0ca3bdc450586539
parent 161291396e76e0832c08f617eb9bd364d1648148
author Stefan Bader <stefan.bader@canonical.com> 1250845385 +0200
committer Len Brown <len.brown@intel.com> 1255416638 -0400

ACPI: video: Loosen strictness of video bus detection code

BugLink: http://bugs.launchpad.net/bugs/333386

Currently a video bus device must (beside other criteria) define _DOD and
_DOS methods to be considered a video device.
Some broken BIOSes prevented working backlight control by only defining both
for one (non-existing bus) and only _DOD for the rest. With this patch in
place the other bus definitions were considered too and backlight control
started to work again.

Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
Acked-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>