From: Alex Deucher <alexander.deucher@amd.com>
Date: Mon, 10 Jun 2013 13:57:07 +0000 (-0400)
Subject: drm/radeon: add backlight quirk for hybrid mac
X-Git-Tag: v3.11-rc1~65^2~60^2~165
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=80101790670385a85aca35ecae4b89e3f2fceecc;p=pandora-kernel.git

drm/radeon: add backlight quirk for hybrid mac

Mac laptops with multiple GPUs apparently use the gmux
driver for backlight control.  Don't register a radeon
backlight interface.  We may need to add other pci ids
for other hybrid mac laptops.

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=65377

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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