[Intel-gfx] [PATCH 0/3] DPCD Backlight Control

[Yetunde Adebisi]

These patches add support for Backlight Control using DPCD registers on eDP 
displays.

- Patch 1 Adds macro for DPCD registers capability size to drm_dp_helper.h
- Patch 2 Reads the eDP DPCD Display Control capability registers.
- Patch 2 Implements functionaly for DPCD Backlight Control 

Yetunde Adebisi (3):
  drm/dp: Add definition for Display Control DPCD Registers capability
    size
  drm/i915: Read eDP Display control capability registers
  drm/i915: Add Backlight Control using DPCD for eDP connectors (v9)

 drivers/gpu/drm/i915/Makefile                 |   1 +
 drivers/gpu/drm/i915/i915_params.c            |   4 +
 drivers/gpu/drm/i915/i915_params.h            |   1 +
 drivers/gpu/drm/i915/intel_dp.c               |  15 ++-
 drivers/gpu/drm/i915/intel_dp_aux_backlight.c | 173 ++++++++++++++++++++++++++
 drivers/gpu/drm/i915/intel_drv.h              |   4 +
 drivers/gpu/drm/i915/intel_panel.c            |   4 +
 include/drm/drm_dp_helper.h                   |   1 +
 8 files changed, 198 insertions(+), 5 deletions(-)
 create mode 100644 drivers/gpu/drm/i915/intel_dp_aux_backlight.c

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1.9.3