drm/amd/display: Apply vactive dram clock change workaround to dcn2 DMLv2

[Why]
This workaround was put in dcn2 DMLv1, and now we need it in DMLv2.

Signed-off-by: Joshua Aberback <joshua.aberback@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20v2.c b/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20v2.c
index 841ed6c..3c70dd5 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20v2.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20v2.c
@@ -2611,7 +2611,8 @@ static void dml20v2_DISPCLKDPPCLKDCFCLKDeepSleepPrefetchParametersWatermarksAndP
                        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) {