drm/amd/display: Cover amdgpu_dm_i2c_xfer

Add KUnit tests for amdgpu_dm_i2c_xfer() covering a failed hardware
command submission and the OEM i2c path with no device present.

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: Ivan Lipski <ivan.lipski@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Bhawanpreet Lakha 2026-08-07 13:52:24 -04:00 • committed by Alex Deucher
commit fdd42268bc