linux_dsm_epyc7002/drivers/gpu/drm/amd
Aurabindo Pillai e6142dd511 drm/amd/display: Prevent dpcd reads with passive dongles
[why]
During hotplug, a DP port may be connected to the sink through
passive adapter which does not support DPCD reads. Issuing reads
without checking for this condition will result in errors

[how]
Ensure the link is in aux_mode before initiating operation that result
in a DPCD read.

Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-05-05 16:13:57 -04:00
..
acp drm: amd/acp: fix broken menu structure 2020-03-13 11:52:35 -04:00
amdgpu drm/amdgpu: drop redundant cg/pg ungate on runpm enter 2020-05-01 09:23:49 -04:00
amdkfd drm/amdkfd: kfree the wrong pointer 2020-04-01 14:44:22 -04:00
display drm/amd/display: Prevent dpcd reads with passive dongles 2020-05-05 16:13:57 -04:00
include drm/amdkfd: Consolidate duplicated bo alloc flags 2020-03-10 15:54:34 -04:00
powerplay drm/amd/powerplay: avoid using pm_en before it is initialized revised 2020-04-28 15:29:08 -04:00