diff options
| author | George Shen <George.Shen@amd.com> | 2022-01-31 14:31:14 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-06-21 18:17:23 -0400 |
| commit | 0bbd1c7de319ca5a08359e5fc901a0317bf5c0d6 (patch) | |
| tree | a9126c29cafea73cb6137283c0fc3b0a93f4fd43 /drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c | |
| parent | a3e731260b9325e2e87baf54f07619c6cb83931b (diff) | |
drm/amd/display: Handle downstream LTTPR with fixed VS sequence
[Why]
Several issues were discovered that caused link
training to fail when an LTTPR device is
connected downstream for the fixed VS sequence.
[How]
The following were added:
- workaround to configure AUX timeout
for fixed VS sequence
- additional delay before disabling
fixed VS intercept
- detection of fixed VS deadlock state and
performing DPCD sequence to recover
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Meenakshikumar Somasundaram <Meenakshikumar.Somasundaram@amd.com>
Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: George Shen <George.Shen@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c')
0 files changed, 0 insertions, 0 deletions