drm/amd/display: Read LTTPR caps first on hotplug

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[WHY]
A new SCR for the DP2.0 spec requires that LTTPR caps be the first thing
read from DPCD upon hotplug.

Signed-off-by: Wesley Chalmers <Wesley.Chalmers@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Anson Jacob <Anson.Jacob@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Wesley Chalmers 2021-03-24 13:28:32 -04:00 • committed by Alex Deucher

parent f4594cd1fa

commit 0abda67419

1 changed files with 33 additions and 32 deletions

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65

drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c

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