kernel/linux.git/drivers/gpu/drm/amd/display/dc/mpc, branch v6.19.12

drm/amd/display: Remove conditional for shaper 3DLUT power-on

2026-03-04T12:20:49+00:00

[ Upstream commit 1b38a87b8f8020e8ef4563e7752a64182b5a39b9 ] [Why] Shaper programming has high chance to fail on first time after power-on or reboot. This can be verified by running IGT's kms_colorop. [How] Always power on the shaper and 3DLUT before programming by removing the debug flag of low power mode. Reviewed-by: Aurabindo Pillai Signed-off-by: Alex Hung Signed-off-by: Ray Wu Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin

drm/amd/display: Add more DC HW state info to underflow logging

2025-10-28T13:57:44+00:00

[Why] Debugging underflow issues frequently requires knowing the HW state at the time of underflow. To enable capturing this HW state information, interface functions are needed for the various DC HW blocks. [How] This change adds the interface functions to read HW state for the following DC HW blocks: - HUBBUB - HUBP - DPP - MPC - OPP - DSC - OPTC - DCCG Reviewed-by: George Shen Signed-off-by: Karen Chen Signed-off-by: Wayne Lin Tested-by: Dan Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Delete unused functions

2025-08-18T20:57:22+00:00

[WHAT] Removing unused code Reviewed-by: Joshua Aberback Signed-off-by: Clay King Signed-off-by: Alex Hung Tested-by: Dan Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Initialize mode_select to 0

2025-06-24T13:55:43+00:00

[WHAT] mode_select was supposed to be initialized in mpc_read_gamut_remap but is not set in default case. This can cause indeterminate behaviors. This is reported as an UNINIT error by Coverity. Reviewed-by: Aurabindo Pillai Signed-off-by: Alex Hung Signed-off-by: Fangzhi Zuo Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: prepare for new platform

2025-06-18T16:19:20+00:00

Expose some functions for new platform use Reviewed-by: Nevenko Stupar Signed-off-by: Karthi Kandasamy Signed-off-by: Aurabindo Pillai Signed-off-by: Alex Deucher

drm/amd/display: DML2.1 changes

2025-06-18T16:19:17+00:00

* Add a missing compilation unit * Missing CFLAGS for certain units Reviewed-by: Roman Li Signed-off-by: Aurabindo Pillai Signed-off-by: Alex Hung Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Add HW change required mpc gamut remap

2025-06-18T16:19:16+00:00

[WHAT] Add HW change to required mpc gamut remap Reviewed-by: Dmytro Laktyushkin Signed-off-by: Charlene Liu Signed-off-by: Alex Hung Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: move RMCM programming

2025-06-03T19:35:23+00:00

[WHY & HOW] Move only RMCM programming outside of dcn401. Extended HW definition in dc for memory layout to extend support. Reviewed-by: Jun Lei Signed-off-by: Yihan Zhu Signed-off-by: Wayne Lin Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: DCN32 null data check

2025-04-21T15:28:01+00:00

[WHY & HOW] Avoid null curve data structure used in the cm block for the potential issue. Reviewed-by: Charlene Liu Signed-off-by: Yihan Zhu Signed-off-by: Zaeem Mohamed Tested-by: Mark Broadworth Signed-off-by: Alex Deucher

drm/amd/display: removed unused function

2025-04-07T19:18:59+00:00

Removed unused function mpc401_get_3dlut_fast_load_status. Signed-off-by: James Flowers Signed-off-by: Alex Deucher