gma500: implement backlight functionality for Cedartrail devices
authorAlan Cox <alan@linux.intel.com>
Thu, 3 May 2012 14:06:05 +0000 (15:06 +0100)
committerDave Airlie <airlied@redhat.com>
Thu, 3 May 2012 15:28:04 +0000 (16:28 +0100)
Basically a straight cut/paste from the reference driver code then
cleaned up a spot.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

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