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e8cd7143e2
Currently, BXT_PP is hardcoded with value '0'.
It practically disabled eDP backlight on MRB (BXT) platform.
This patch will tell which BXT_PP registers (there are two set of
PP_CONTROL in the spec) to be used as defined in VBT (Video Bios Timing
table) and this will enabled eDP backlight controller on MRB (BXT)
platform.
v2:
- Remove unnecessary information in commit message.
- Assign vbt.backlight.controller to a backlight_controller variable and
return the variable value.
v3:
- Rebased to latest code base.
- updated commit title.
Signed-off-by: Mustamin B Mustaffa <mustamin.b.mustaffa@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180227030734.37901-1-mustamin.b.mustaffa@intel.com
(cherry picked from commit 73c0fcac97)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>