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Commit 41f91315 authored by Nicholas Kazlauskas's avatar Nicholas Kazlauskas Committed by Alex Deucher
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drm/amd/display: Query DMCUB for dp alt status



[Why]
To avoid hanging RDPCSPIPE when INTERCEPTB isn't set.

DMCUB owns control of that bit so DMCUB should manage returning the
information driver needs for link encoder control.

[How]
Add a new DMCUB command to return dp alt disable and dp4 information.

Reviewed-by: default avatarHansen Dsouza <hansen.dsouza@amd.com>
Acked-by: default avatarPavle Kotarac <Pavle.Kotarac@amd.com>
Signed-off-by: default avatarNicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 32b119c8
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