drm/amd/display: Detect panel type from VSDB

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[Why]
The AMD VSDB contains two bits that indicate the type of panel connected.
This can be useful for policy decisions based upon panel technology.

[How]
Read the bits for the panel type when parsing VSDB and store them in
the dc_link.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Mario Limonciello (AMD) <superm1@kernel.org>
Signed-off-by: Matthew Stewart <matthew.stewart2@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Mario Limonciello (AMD) 2026-01-05 21:52:48 -06:00 • committed by Alex Deucher

parent 8cee62904c

commit 0a62732e53

4 changed files with 34 additions and 0 deletions

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15

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

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11

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

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1

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

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7

drivers/gpu/drm/amd/display/dc/dc_types.h

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