drm/amd/display: Force delay after DP receive power up

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[Why]
Some sprcified monitor scalar cannot recognize timing
change on demand. Once the link phy disable and enable
during a short period then the Sink protection mechanism
could keep the screen in blank and cannot be recoverred.

[How]
To add 100ms delay between enable link phy and link training.

Signed-off-by: Martin Tsai <martin.tsai@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Martin Tsai 2020-05-22 15:50:11 +08:00 • committed by Alex Deucher

parent c69553ebdf

commit 013cce49f7

2 changed files with 5 additions and 3 deletions

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7

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

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1

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

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