linux_dsm_epyc7002/drivers/gpu/drm/amd
Aurabindo Pillai 7b353e41b4 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 13:12:11 -04:00
..
acp
amdgpu amd/amdgpu: Limit rlcg write registers only for nv12 2020-05-01 15:19:08 -04:00
amdkfd drm/amdkfd: Use a systematic method to calculate queue mask bit 2020-05-01 15:19:08 -04:00
display drm/amd/display: Prevent dpcd reads with passive dongles 2020-05-05 13:12:11 -04:00
include drm/amd/powerplay: revise the way to retrieve the board parameters 2020-04-22 18:11:45 -04:00
powerplay drm/amdgpu/smu10: remove duplicate assignment of smu10_hwmgr_funcs members 2020-04-30 16:48:07 -04:00