diff options
| author | Jimmy Kizito <Jimmy.Kizito@amd.com> | 2022-03-09 18:26:47 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-04-06 11:42:32 -0400 |
| commit | 2944dbedc7e167221fdb99531f7b0cdbac9ac696 (patch) | |
| tree | d086b0256a76892e3d70ba3ea12112d68c4d85c7 /lib/mpi/mpiutil.c | |
| parent | 83e9faac9a387894e945e7f33c2bb7a9c348257c (diff) | |
drm/amd/display: Add work around for AUX failure on wake.
[Why]
When waking from low-power states, a DP sink may remain unresponsive to
AUX transactions.
[How]
Try to toggle DPCD SET_POWER register repeatedly (up to a maximum
timeout value) until DP sink becomes responsive.
Reviewed-by: Mustapha Ghaddar <Mustapha.Ghaddar@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Jimmy Kizito <Jimmy.Kizito@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'lib/mpi/mpiutil.c')
0 files changed, 0 insertions, 0 deletions