Harry Wentland 4c3aeb11d5 drm/amd/display: Don't set 4to1MPC config dynamically ... We were previously modifying the global dc->config.enable_4to1MPC dynamically. These variables are meant as global configs, not to by dynamically modified. Modifying them dynamically prevents us from enabling/disabling functionality for debug purposes and can easily lead to bad things since we're not operating on the current state but on DC-wide variables. Instead we should look at the existing split4mpc decision in dcn20_validate_apply_split_flags and make the decision there, if the global config.enable_4to1MPC is set to true for the DCN version we're running. This fixes corruption that is observed when running a new IGT kms_colorop test for color-space-conversion that uses a YUV plane and outputs to a writeback connector. Co-developed by Claude Sonnet 4.5. Assisted-by: Claude:claude-sonnet-4.5 Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Signed-off-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Chuanyu Tseng <chuanyu.tseng@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>		2026-03-30 14:52:56 -04:00
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dcn351_fpu.c	drm/amd/display: Don't set 4to1MPC config dynamically	2026-03-30 14:52:56 -04:00
dcn351_fpu.h	drm/amd/display: replace fast_validate with enum dc_validate_mode	2025-06-03 15:36:23 -04:00