drm/radeon: add a module parameter for backlight control (v2)

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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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This commit is contained in:

Alex Deucher 2014-09-16 20:57:26 -04:00

parent f55e03b975

commit bc13018b5e

3 changed files with 34 additions and 8 deletions

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1

drivers/gpu/drm/radeon/radeon.h

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4

drivers/gpu/drm/radeon/radeon_drv.c

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37

drivers/gpu/drm/radeon/radeon_encoders.c

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