drm/amd/display: Test HDCP update

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[WHAT]
Add KUnit tests for amdgpu_dm_update_hdcp() covering a missing workqueue,
a skipped writeback connector, and an unchanged DisplayPort connector.

[HOW]
Keep content protection unchanged and provide only the sink, connector,
and CRTC state needed for the connector walk, avoiding HDCP operations.

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>

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This commit is contained in:

Alex Hung 2026-08-13 14:06:00 -06:00 • committed by Alex Deucher

parent 334a9a3bf3

commit 448defc239

3 changed files with 103 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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100

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

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