diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4228-drm-amd-display-add-50us-buffer-as-WA-for-pstate-swi.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4228-drm-amd-display-add-50us-buffer-as-WA-for-pstate-swi.patch | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4228-drm-amd-display-add-50us-buffer-as-WA-for-pstate-swi.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4228-drm-amd-display-add-50us-buffer-as-WA-for-pstate-swi.patch new file mode 100644 index 00000000..5d59357b --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4228-drm-amd-display-add-50us-buffer-as-WA-for-pstate-swi.patch @@ -0,0 +1,30 @@ +From 4f1c705d9a430f770150cfd26b8e929c19fe05e7 Mon Sep 17 00:00:00 2001 +From: Jun Lei <Jun.Lei@amd.com> +Date: Thu, 19 Sep 2019 17:43:45 -0400 +Subject: [PATCH 4228/4736] drm/amd/display: add 50us buffer as WA for pstate + switch in active + +Signed-off-by: Jun Lei <Jun.Lei@amd.com> +Reviewed-by: Aric Cyr <Aric.Cyr@amd.com> +Acked-by: Leo Li <sunpeng.li@amd.com> +--- + drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20.c | 3 ++- + 1 file changed, 2 insertions(+), 1 deletion(-) + +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) { +-- +2.17.1 + |