drm/amd/display: Test dm_helpers_dmub_set_config_sync

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[WHAT]
Add a KUnit test for dm_helpers_dmub_set_config_sync() that submits a
SET_CONFIG payload without a DC DMUB service.

The command cannot reach the firmware, so the helper still returns
success while reporting SET_CONFIG_UNKNOWN_ERROR.

Assisted-by: Copilot:Claude-Opus-5
Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Ivan Lipski <ivan.lipski@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

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Alex Hung 2026-08-11 14:06:12 -06:00 • committed by Alex Deucher

parent 7ed3fa3e7a

commit 079766dfe4

2 changed files with 49 additions and 0 deletions

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1

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

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48

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

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