This is a subset of patches, originally submitted by Werner Sembach titled: New uAPI drm properties for color management [1] I've rebased against the current master branch, made modifications where needed, and tested with both HDMI and DP on both Intel and AMD hardware, using modified sway [2] and wlroots [3]. The original patch set added the following properties: - active bpc - active color format - active color range - preferred color format and consolidated "Broadcast RGB" into a single property. I've elected to only include active and preferred color format in this patch set as I've very little interest in the other properties and, hopefully, this will be easier for others to review. [1]: https://lore.kernel.org/dri-devel/20210630151018.330354-1-wse@xxxxxxxxxxxxxxxxxxx/ [2]: https://github.com/swaywm/sway/pull/7903 [3]: https://gitlab.freedesktop.org/wlroots/wlroots/-/merge_requests/4509 Werner Sembach (7): drm/amd/display: Remove unnecessary SIGNAL_TYPE_HDMI_TYPE_A check drm/uAPI: Add "active color format" drm property as feedback for userspace drm/amd/display: Add handling for new "active color format" property drm/i915/display: Add handling for new "active color format" property drm/uAPI: Add "preferred color format" drm property as setting for userspace drm/amd/display: Add handling for new "preferred color format" property drm/i915/display: Add handling for new "preferred color format" property .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 75 ++++++++++-- .../display/amdgpu_dm/amdgpu_dm_mst_types.c | 8 ++ drivers/gpu/drm/drm_atomic_helper.c | 4 + drivers/gpu/drm/drm_atomic_uapi.c | 4 + drivers/gpu/drm/drm_connector.c | 111 ++++++++++++++++++ drivers/gpu/drm/i915/display/intel_display.c | 33 ++++++ drivers/gpu/drm/i915/display/intel_dp.c | 23 ++-- drivers/gpu/drm/i915/display/intel_dp_mst.c | 10 ++ drivers/gpu/drm/i915/display/intel_hdmi.c | 16 ++- include/drm/drm_connector.h | 27 +++++ 10 files changed, 289 insertions(+), 22 deletions(-) base-commit: 1f874787ed9a2d78ed59cb21d0d90ac0178eceb0 -- 2.43.0