drm/amd/display: Handle link loss interrupt better
authorAric Cyr <aric.cyr@amd.com>
Tue, 12 May 2020 16:53:52 +0000 (12:53 -0400)
committerAlex Deucher <alexander.deucher@amd.com>
Thu, 28 May 2020 18:00:50 +0000 (14:00 -0400)
commit68423dabadaaacdd9383653daa3d9102088b2c08
treed325928bcb3743477135bd7397ec73f0af6f0d9e
parentb236e048ec633a35b2a83d663f74c22ef04b9bab
drm/amd/display: Handle link loss interrupt better

[Why]
Link loss currently only retrains and re-enables the stream.  This can
cause issues for some sinks.

[How]
When link loss occurs, the link and stream(s) should be completely
disabled and then reenabled.

Signed-off-by: Aric Cyr <aric.cyr@amd.com>
Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c