>From eDP 1.5 we are supposed to use the VESA pathways to control brightness. But still did not have the Nits brightness control coded in. This series enables NITS based backlight control over AUX using VESA pathways.
Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/3669 Signed-off-by: Suraj Kandpal <suraj.kand...@intel.com> Suraj Kandpal (8): drm/dp: Add eDP 1.5 bit definition drm/dp: Increase eDP display control capability size drm/i915/backlight: Use proper interface based on eDP version drm/i915/backlight: Check Luminance based brightness control for VESA drm/i915/backlight: Modify function to get VESA brightness in Nits drm/i915/backlight: Add function to change brightness in nits for VESA drm/i915/backlight: Setup nits based luminance via VESA drm/i915/backlight: Enable nits based luminance .../drm/i915/display/intel_display_types.h | 1 + .../drm/i915/display/intel_dp_aux_backlight.c | 181 ++++++++++++++---- include/drm/display/drm_dp.h | 3 +- 3 files changed, 143 insertions(+), 42 deletions(-) -- 2.34.1
