drm/amd/display: use preferred link settings for dp signal only

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[ Upstream commit abf34ca465 ]

[why]
We set preferred link settings for virtual signal. However we don't support
virtual signal for UHBR link rate. If preferred is set to UHBR link rate, we
will allow virtual signal with UHBR link rate which causes system crashes.

Reviewed-by: Dillon Varone <dillon.varone@amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Wenjing Liu 2024-05-29 12:20:41 -04:00 • committed by Greg Kroah-Hartman

parent 800a5ab673

commit 67cf14c04f

1 changed files with 10 additions and 14 deletions

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drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c

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