On Fri, 04 Dec 2020, Lyude Paul <lyude@xxxxxxxxxx> wrote: > A while ago we ran into issues while trying to enable the eDP backlight > control interface as defined by VESA, in order to make the DPCD > backlight controls on newer laptop panels work. The issue ended up being > much more complicated however, as we also apparently needed to add > support for an Intel-specific DPCD backlight control interface as the > VESA interface is broken on many laptop panels. For lack of a better > name, we just call this the Intel HDR backlight interface. > > While this only adds support for the SDR backlight mode (I think), this > will fix a lot of user's laptop panels that we weren't able to properly > automatically detect DPCD backlight controls on previously. > > Series-wide changes in v3: > * Pass down brightness values to enable/disable backlight callbacks in a > separate patch > * Rebase > > Lyude Paul (9): > drm/i915/dp: Program source OUI on eDP panels > drm/i915: Rename pwm_* backlight callbacks to ext_pwm_* > drm/i915: Pass down brightness values to enable/disable backlight > callbacks > drm/i915/dp: Rename eDP VESA backlight interface functions > drm/i915/dp: Add register definitions for Intel HDR backlight > interface Pushed the above patches to din to move things forward, thanks for the patches. Still looking at the below. BR, Jani. > drm/i915: Keep track of pwm-related backlight hooks separately > drm/i915/dp: Enable Intel's HDR backlight interface (only SDR for now) > drm/i915/dp: Allow forcing specific interfaces through > enable_dpcd_backlight > drm/dp: Revert "drm/dp: Introduce EDID-based quirks" > > drivers/gpu/drm/drm_dp_helper.c | 83 +--- > drivers/gpu/drm/drm_dp_mst_topology.c | 3 +- > .../drm/i915/display/intel_display_types.h | 18 +- > drivers/gpu/drm/i915/display/intel_dp.c | 42 +- > .../drm/i915/display/intel_dp_aux_backlight.c | 394 +++++++++++++--- > drivers/gpu/drm/i915/display/intel_dp_mst.c | 3 +- > .../i915/display/intel_dsi_dcs_backlight.c | 7 +- > drivers/gpu/drm/i915/display/intel_panel.c | 435 ++++++++++-------- > drivers/gpu/drm/i915/display/intel_panel.h | 4 + > drivers/gpu/drm/i915/display/intel_psr.c | 2 +- > drivers/gpu/drm/i915/i915_params.c | 2 +- > include/drm/drm_dp_helper.h | 21 +- > 12 files changed, 655 insertions(+), 359 deletions(-) -- Jani Nikula, Intel Open Source Graphics Center _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
