drm/amd/display: Test I2C, stubs and MST early returns

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[WHAT]
Add KUnit coverage for dm_helpers_submit_i2c,
dm_helper_dmub_aux_transfer_sync, the empty stub helpers, the MST
null-connector early returns, dm_helpers_dmub_outbox_interrupt_control,
dm_helpers_mst_enable_stream_features and
dm_helpers_enable_periodic_detection.

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

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Alex Hung 2026-06-24 23:34:18 -06:00 • committed by Alex Deucher

parent 0984a22c9f

commit f5e5e134dc

2 changed files with 559 additions and 0 deletions

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18

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

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541

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

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