Commits
Jani Nikula committed 2dd6982e471
drm/i915/bxt: add support for setting backlight freq from vbt The only missing piece is the function to convert frequency to PWM register value. The PWM is based on 19.2 MHz clock, except for BXT A step, which is based on CDCLK, and which we ignore. Reviewed-by: Imre Deak <imre.deak@intel.com> Tested-by: Imre Deak <imre.deak@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1448958232-26520-1-git-send-email-jani.nikula@intel.com