[Intel-gfx] [PATCH v2 0/4] Enhancement to intel_dp_aux_backlight driver

[Puthikorn Voravootivat]

This patch set contain 4 patches.
- First two patches allow enable DPCD backlight control when panel
  can also do that via PWM pin and fix the usage of enable register.
- Next patch adds enable DBC by default
- Last patch makes the driver restore last brightness level after
  turning display off and on.

Change log:
v2:
- Drop PWM frequency patch
- Addess suggestion from Jani Nikula

Puthikorn Voravootivat (4):
  drm/i915: Add DPCD prefered mode for backlight control
  drm/i915: Correctly enable blacklight adjustment via DPCD
  drm/i915: Support dynamic backlight via DPCD register
  drm/i915: Store brightness level in aux backlight driver

 drivers/gpu/drm/i915/i915_params.c            |  6 +-
 drivers/gpu/drm/i915/i915_params.h            |  2 +-
 drivers/gpu/drm/i915/intel_dp_aux_backlight.c | 87 ++++++++++++++++++++++-----
 3 files changed, 75 insertions(+), 20 deletions(-)

-- 
2.12.0.246.ga2ecc84866-goog