This reverts commit a861736dae644a0d7abbca0c638ae6aad28feeb8.

This commit led to a power regression where AMD cards draw lots of power
while being idle.

Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1407
Cc: <sta...@vger.kernel.org> # 5.10
Signed-off-by: Konstantin Kharlamov <hi-an...@yandex.ru>
---
 .../amd/display/dc/dml/dcn20/display_mode_vba_20v2.c  | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

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 860e72a51534..80170f9721ce 100644
--- 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
@@ -2635,14 +2635,15 @@ static void 
dml20v2_DISPCLKDPPCLKDCFCLKDeepSleepPrefetchParametersWatermarksAndP
        }
 
        if (mode_lib->vba.DRAMClockChangeSupportsVActive &&
-                       mode_lib->vba.MinActiveDRAMClockChangeMargin > 60 &&
-                       
mode_lib->vba.PrefetchMode[mode_lib->vba.VoltageLevel][mode_lib->vba.maxMpcComb]
 == 0) {
+                       mode_lib->vba.MinActiveDRAMClockChangeMargin > 60) {
                mode_lib->vba.DRAMClockChangeWatermark += 25;
 
                for (k = 0; k < mode_lib->vba.NumberOfActivePlanes; ++k) {
-                       if (mode_lib->vba.DRAMClockChangeWatermark >
-                       dml_max(mode_lib->vba.StutterEnterPlusExitWatermark, 
mode_lib->vba.UrgentWatermark))
-                               mode_lib->vba.MinTTUVBlank[k] += 25;
+                       if 
(mode_lib->vba.PrefetchMode[mode_lib->vba.VoltageLevel][mode_lib->vba.maxMpcComb]
 == 0) {
+                               if (mode_lib->vba.DRAMClockChangeWatermark >
+                               
dml_max(mode_lib->vba.StutterEnterPlusExitWatermark, 
mode_lib->vba.UrgentWatermark))
+                                       mode_lib->vba.MinTTUVBlank[k] += 25;
+                       }
                }
 
                mode_lib->vba.DRAMClockChangeSupport[0][0] = 
dm_dram_clock_change_vactive;
-- 
2.30.0

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