drm/amd/display: Test link and sink dump

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[WHAT]
Add KUnit tests for amdgpu_dm_dump_links_and_sinks() covering a device
without DC, a DC without links, named local and remote sinks, and missing
or unnamed sinks.

[HOW]
Build lightweight DC link and sink objects so the dump walks each naming
and skip path without display hardware.

Assisted-by: Copilot:Claude-Opus-5 GPT-5.6-Sol
Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com>
Signed-off-by: Alex Hung <alex.hung@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 2026-08-13 14:05:28 -06:00 • committed by Alex Deucher

parent d0f8af4787

commit 334a9a3bf3

3 changed files with 95 additions and 1 deletions

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3

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

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1

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

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92

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

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