diff options
| author | Jun Lei <[email protected]> | 2019-09-19 17:43:45 -0400 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2019-10-25 16:50:07 -0400 |
| commit | 4294f722196d04fc2b44bca8c590d08137135f19 (patch) | |
| tree | 11a50d103ca0476051ffc309e75f4b9edc010a05 | |
| parent | acf83f86b2e1dd39fdc4e5e7072aaf21d0563558 (diff) | |
drm/amd/display: add 50us buffer as WA for pstate switch in active
Signed-off-by: Jun Lei <[email protected]>
Reviewed-by: Aric Cyr <[email protected]>
Acked-by: Leo Li <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20.c b/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20.c index 649883777f62..6c6c486b774a 100644 --- a/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20.c +++ b/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20.c @@ -2577,7 +2577,8 @@ static void dml20_DISPCLKDPPCLKDCFCLKDeepSleepPrefetchParametersWatermarksAndPer mode_lib->vba.MinActiveDRAMClockChangeMargin + mode_lib->vba.DRAMClockChangeLatency; - if (mode_lib->vba.MinActiveDRAMClockChangeMargin > 0) { + if (mode_lib->vba.MinActiveDRAMClockChangeMargin > 50) { + mode_lib->vba.DRAMClockChangeWatermark += 25; mode_lib->vba.DRAMClockChangeSupport[0][0] = dm_dram_clock_change_vactive; } else { if (mode_lib->vba.SynchronizedVBlank || mode_lib->vba.NumberOfActivePlanes == 1) { |