drm/amd/display: Add MST link detection tests for connector

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Add KUnit coverage for amdgpu_dm_detect_mst_link_for_all_connectors()
to the amdgpu_dm_connector tests:

- No connectors registered: iteration body never runs and the call
  succeeds.
- Writeback connector: hit by the early continue
- Non-MST link
- MST branch without aux: NULL mst_mgr.aux

Assisted-by: Copilot:Claude-Opus-4.8
Reviewed-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com>
Signed-off-by: George Zhang <george.zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Bhawanpreet Lakha 2026-06-23 14:41:26 -04:00 • committed by Alex Deucher

parent b23470a026

commit eff243192f

2 changed files with 130 additions and 0 deletions

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1

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

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129

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

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