[PATCH 0/4] Dpcd controlled backlight fixes

[Jouni Högander]

This patch set fixes problems with panels informing intel propriety
dpcd backlight control, but it is not actually working.

Also used range is now read from EDID in intel propriety dpcd
backlight control driver instead of using fixed 0 and 512. This is
done by splitting calculation from amdgpu_dm into share function in
generic drm code.

Cc: Lyude Paul <lyude at redhat.com>
Cc: Mika Kahola <mika.kahola at intel.com>
Cc: Jani Nikula <jani.nikula at intel.com>

Jouni Högander (4):
  drm/i915: Check EDID before dpcd for possible HDR aux bl support
  drm: New function to get luminance range base on static hdr metadata
  drm/amdgpu_dm: Use split out luminance calculation function
  drm/i915: Use luminance range from static hdr metadata

 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 35 ++----------
 drivers/gpu/drm/drm_edid.c                    | 55 +++++++++++++++++++
 .../drm/i915/display/intel_dp_aux_backlight.c | 22 +++++++-
 include/drm/drm_edid.h                        |  4 ++
 4 files changed, 83 insertions(+), 33 deletions(-)

-- 
2.25.1