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| author | Jimmy Kizito <Jimmy.Kizito@amd.com> | 2022-03-09 18:26:47 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-03-31 23:05:53 -0400 |
| commit | 84d1ce0631c746c7fe025cbb49da6ade1aa80a1f (patch) | |
| tree | 8977b85a4a5a231066b5d4cd9b89c7e5a7b9a92a /drivers/gpu/drm/amd/display/dc/bios/command_table.c | |
| parent | a905f0b59fefe819c59bacf9d0cfa678c96fcb8c (diff) | |
| download | linux-84d1ce0631c746c7fe025cbb49da6ade1aa80a1f.tar.gz linux-84d1ce0631c746c7fe025cbb49da6ade1aa80a1f.tar.bz2 linux-84d1ce0631c746c7fe025cbb49da6ade1aa80a1f.zip | |
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 'drivers/gpu/drm/amd/display/dc/bios/command_table.c')
0 files changed, 0 insertions, 0 deletions