From b1e8156d48159d180922edeb7083e491477ebcca Mon Sep 17 00:00:00 2001 From: Joshua Aberback Date: Fri, 11 Oct 2019 15:49:07 -0400 Subject: [PATCH 4263/4736] 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 Reviewed-by: Jun Lei Acked-by: Leo Li --- .../gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20v2.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) 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 841ed6c23f93..3c70dd577292 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 @@ -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) { -- 2.17.1