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 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
