drm/amd/display: Test MST resume guards

Browse source

[Why]
Add KUnit tests for resume_mst_branch_status() without a primary
branch and s3_handle_mst() with an empty connector list.

[How]
Use the real topology mutex and DRM connector iterator. The tests
stop before AUX or topology-manager hardware operations are required.

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>
Signed-off-by: Ray Wu <ray.wu@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 2026-08-14 12:54:12 -06:00 • committed by Alex Deucher

parent f487177db6

commit afa47a06f2

3 changed files with 39 additions and 2 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

6

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

View file

2

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

View file

33

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

View file