Files
linux/drivers/gpu/drm/amd/display
Nathan Lucas cd22349e86 drm/amd/display: fix BT.2020 YCbCr output CSC matrices for DCE
The commit cited by the Fixes tag added separate limited and full-range
BT.2020 YCbCr entries to the DCE output CSC tables, but populated both
entries with the same matrix copied from the common DC table. That
matrix combined full-range scaling with limited-range luma offset and was
incorrect for both limited and full-range output.

Replace the coefficients in both entries in the DCE paths with those from
the new COLOR_SPACE_YCBCR2020_LIMITED_TYPE
and COLOR_SPACE_YCBCR2020_FULL_TYPE entries in the preceding commit
("drm/amd/display: fix BT.2020 YCbCr limited output CSC matrix").

Fixes: 51e6668ab4 ("drm/amd/display: add missing CSC entries for BT.2020 for DCE IPs")
Assisted-by: OpenAI-Codex:GPT-5.6-Sol
Tested-by: Igor Paunovic <royalnet026@gmail.com>
Tested-by: Satyajit Roy <sroy14@alum.utk.edu>
Signed-off-by: Nathan Lucas <nlucasgit@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 14c8726b79)
Cc: stable@vger.kernel.org
2026-08-12 10:22:47 -04:00
..