tree 5a6d124aef3a843bd8c8d30b27958cfb41181ae4
parent 3164888a40469c102b5d6d1b756c7646e7eb19e7
author Lee, Shawn C <shawn.c.lee@intel.com> 1505187390 +0800
committer Jani Nikula <jani.nikula@intel.com> 1505208650 +0300

drm/i915/bxt: set min brightness from VBT

Min brightness value from vbt was missing for BXT platform.
This setting have to refer backlight ic spec to restrict
min backlight output. Without this restriction, driver would
allow to configure lower brightness value and violate
backlight ic requirement.

Fixes: 0fb890c01349 ("drm/i915/bxt: BLC implementation")
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Cooper Chiou <cooper.chiou@intel.com>
Cc: Gary C Wang <gary.c.wang@intel.com>
Signed-off-by: Shawn Lee <shawn.c.lee@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1505187390-7039-1-git-send-email-shawn.c.lee@intel.com