drm/amd/display: initialize lttpr

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[Description]
When reading link, update the procedure as follows:
1-Set aux timeout to extended: 3.2ms
2-Start with reading lttpr caps
3-Determine if lttpr support should be enabled. Reset aux timeout to
400us if no repeater is found.

Signed-off-by: abdoulaye berthe <abdoulaye.berthe@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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abdoulaye berthe 2019-07-19 10:25:39 -04:00 • committed by Alex Deucher

parent 00ada9d14f

commit 8e5100a575

4 changed files with 95 additions and 0 deletions

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56

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

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2

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

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1

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

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36

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

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