drm/amd/display: extend delta clamping logic to CM3 LUT helper

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Commit 27fc10d109 ("drm/amd/display: Fix the delta clamping for shaper
LUT") fixed banding when using plane shaper LUT in DCN10 CM helper.  The
problem is also present in DCN30 CM helper, fix banding by extending the
same bug delta clamping fix to CM3.

Signed-off-by: Melissa Wen <mwen@igalia.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 0274a54897)

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Melissa Wen 2025-12-08 22:44:15 -01:00 • committed by Alex Deucher

parent 8f959d37c1

commit d25b32aa82

5 changed files with 49 additions and 25 deletions

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30

drivers/gpu/drm/amd/display/dc/dcn30/dcn30_cm_common.c

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2

drivers/gpu/drm/amd/display/dc/dwb/dcn30/dcn30_cm_common.h

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9

drivers/gpu/drm/amd/display/dc/hwss/dcn30/dcn30_hwseq.c

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17

drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c

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16

drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c

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