drm/amd/display: Test execute_synaptics_rc_command failures

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[WHAT]
Add KUnit tests for execute_synaptics_rc_command() covering the three
AUX write failures that were untested (data, offset and command), plus
the poll loop that waits for the command to go inactive.

The Synaptics AUX fake gains a busy read counter so it can report the
command as still active for the first reads.

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 14:04:29 -06:00 • committed by Alex Deucher

parent 318e26c7a2

commit cc8cf8b6d9

1 changed files with 85 additions and 2 deletions

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

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