drm/amd/display: Parse all extension blocks for VSDB

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[Why]
VSDB parsing loop only searched within the first extension block.
If the VSDB was located in a subsequent extension block,
it would not be found.

[How]
Calculate the total length of all extension blocks (EDID_LENGTH *
edid->extensions) and use that as the loop boundary, allowing the
parser to search through all available extension blocks.

Reviewed-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

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Ray Wu 2026-01-26 15:55:18 +08:00 • committed by Alex Deucher

parent 4bff89bad9

commit 0faccfa9ca

1 changed files with 3 additions and 1 deletions

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

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