From bc13018b5eba26ca229b33763c9e61fac31a1925 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Tue, 16 Sep 2014 20:57:26 -0400
Subject: [PATCH] drm/radeon: add a module parameter for backlight control (v2)

Add a module parameter to disable the radeon GPU backlight
controller to override the automatic detection.  Some
laptops seems to indicate that they use the integrated
controller, but appear to actually use an external
controller.

bug:
https://bugs.freedesktop.org/show_bug.cgi?id=81382

v2: fix module parameter description

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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