drm/amd/display: Test plane colorop helper walkers

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[WHAT]
Add KUnit coverage for the per-colorop plane helpers
__set_dm_plane_colorop_multiplier(), __set_dm_plane_colorop_3x4_matrix()
and __set_dm_plane_colorop_degamma().

A single-colorop atomic-state fixture drives each helper: the multiplier
programs hdr_mult, the 3x4 matrix enables gamut remap (and rejects a
wrong blob length), and the degamma 1D curve maps to a predefined
transfer function (and rejects an unsupported curve).

Assisted-by: Copilot:Claude-Opus-4.8 GPT-5.5
Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Wayne Lin <wayne.lin@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Alex Hung 2026-06-30 13:09:42 -06:00 • committed by Alex Deucher

parent a10bb08af5

commit 789f7486a3

3 changed files with 224 additions and 3 deletions

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9

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c

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11

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.h

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207

drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_color_test.c

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