From: Stefan Bader <stefan.bader@canonical.com>
Date: Fri, 21 Aug 2009 09:03:05 +0000 (+0200)
Subject: ACPI: video: Loosen strictness of video bus detection code
X-Git-Tag: v2.6.32-rc5~6^2~1^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3a1151e3f124fd1a2c54b8153f510f1a7c715369;p=pandora-kernel.git

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>
---

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