diff options
| author | Alvin Lee <alvin.lee2@amd.com> | 2020-09-21 16:23:25 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-10-09 15:09:13 -0400 |
| commit | 508300a57141a120430e790b487d2dba287e23f8 (patch) | |
| tree | 0eb72b7bfc1e6257950f9151f0662b3ac3ee3c95 /drivers | |
| parent | 95d620adb48f7728e67d82f56f756e8d451cf8d2 (diff) | |
drm/amd/display: Don't allow pstate if no support in blank
[Why]
We will hang if we report switch in VACTIVE but not in VBLANK and DPG_EN = 1
[How]
Block switch in ACTIVE if not supported in BLANK
Signed-off-by: Alvin Lee <alvin.lee2@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Eryk Brol <eryk.brol@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dml/dcn30/display_mode_vba_30.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn30/display_mode_vba_30.c b/drivers/gpu/drm/amd/display/dc/dml/dcn30/display_mode_vba_30.c index 50b7d011705d..9e0ae18e71fa 100644 --- a/drivers/gpu/drm/amd/display/dc/dml/dcn30/display_mode_vba_30.c +++ b/drivers/gpu/drm/amd/display/dc/dml/dcn30/display_mode_vba_30.c @@ -5558,7 +5558,7 @@ static void CalculateWatermarksAndDRAMSpeedChangeSupport( } } - if (mode_lib->vba.MinActiveDRAMClockChangeMargin > 0) { + if (mode_lib->vba.MinActiveDRAMClockChangeMargin > 0 && PrefetchMode == 0) { *DRAMClockChangeSupport = dm_dram_clock_change_vactive; } else if (((mode_lib->vba.SynchronizedVBlank == true || mode_lib->vba.TotalNumberOfActiveOTG == 1 || SecondMinActiveDRAMClockChangeMarginOneDisplayInVBLank > 0) && PrefetchMode == 0)) { *DRAMClockChangeSupport = dm_dram_clock_change_vblank; |