drm/amd/display: Create debugfs to tell if connector is DPIA link

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[Why]
Tests need to tell if display is connected via USB4 DPIA link.
Currently this is only possible via analyzing dmesg logs.

[How]
Create a per-connector debugfs entry to report if the link is
tunneled via USB4 DPIA.

Reviewed-by: Wayne Lin <Wayne.Lin@amd.com>
Acked-by: Jasdeep Dhillon <jdhillon@amd.com>
Signed-off-by: Stylon Wang <stylon.wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Stylon Wang 2022-11-15 20:10:05 +08:00 • committed by Alex Deucher

parent bb622e0c00

commit 7a259c6df9

1 changed files with 22 additions and 1 deletions

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

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