drm/i915: Add option to support dynamic backlight via DPCD

Browse source

This patch adds option to enable dynamic backlight for eDP
panel that supports this feature via DPCD register and
set minimum / maximum brightness to 0% and 100% of the
normal brightness.

Signed-off-by: Puthikorn Voravootivat <puthik@chromium.org>
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170622190339.142671-4-puthik@chromium.org

...

This commit is contained in:

Puthikorn Voravootivat 2017-06-22 12:03:39 -07:00 • committed by Daniel Vetter

parent 560a758d39

commit ae25eceab6

3 changed files with 33 additions and 1 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

5

drivers/gpu/drm/i915/i915_params.c

View file

3

drivers/gpu/drm/i915/i915_params.h

View file

26

drivers/gpu/drm/i915/intel_dp_aux_backlight.c

View file