mirror_ubuntu-kernels/drivers/gpu/drm/amd
Ilya 583ad88871 drm/amd/display: Fix possible infinite loop in DP LT fallback
[Why]
It's possible for some fallback scenarios to result in infinite looping
during link training.

[How]
This change modifies DP LT fallback behavior to more closely match the
DP standard. Keep track of the link rate during the EQ_FAIL fallback,
and use it as the maximum link rate for the CR sequence.

Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Ilya <Ilya.Bakoulin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-06-01 15:56:49 -04:00
..
acp
amdgpu drm/amdgpu: add drm-client-id to fdinfo v2 2022-05-26 14:56:34 -04:00
amdkfd drm/amdgpu: add AMDGPU_GEM_CREATE_DISCARDABLE 2022-05-26 14:56:34 -04:00
display drm/amd/display: Fix possible infinite loop in DP LT fallback 2022-06-01 15:56:49 -04:00
include drm/amd/display: Add HDMI_ACP_SEND register 2022-05-26 14:56:32 -04:00
pm drm/amd/pm: Return auto perf level, if unsupported 2022-05-26 14:56:33 -04:00