drm/i915: Refactor panel backlight controls

Browse source

There were two instances of code to control the panel backlight and
neither handled the complete set of device variations.

Fixes:

  Bug 29716 - [GM965] Regression: Backlight resets to minimum when changing resolution
  https://bugs.freedesktop.org/show_bug.cgi?id=29716

And a bug on one of my PineView boxes which overflowed the backlight
value.

Incorporates part of a similar patch by Matthew Garrett that exposes a
native Intel backlight controller.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

...

This commit is contained in:

Chris Wilson 2010-08-22 13:18:16 +01:00

parent 5d607f9b03

commit a957355693

5 changed files with 125 additions and 108 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

2

drivers/gpu/drm/i915/i915_drv.h

View file

5

drivers/gpu/drm/i915/intel_drv.h

View file

56

drivers/gpu/drm/i915/intel_lvds.c

View file

61

drivers/gpu/drm/i915/intel_opregion.c

View file

109

drivers/gpu/drm/i915/intel_panel.c

View file