From: Zhikai Zhai <zhikai.z...@amd.com>

[WHY]
There is no need to wait vblank in the vupdate locked
region at a full type update

[HOW]
skip wait vblank when global sync change

Reviewed-by: Alvin Lee <alvin.l...@amd.com>
Acked-by: Qingqing Zhuo <qingqing.z...@amd.com>
Signed-off-by: Zhikai Zhai <zhikai.z...@amd.com>
---
 drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c 
b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
index 53669f832ba5..69ea1f4ea749 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
@@ -1720,10 +1720,8 @@ static void dcn20_program_pipe(
                                pipe_ctx->pipe_dlg_param.vupdate_offset,
                                pipe_ctx->pipe_dlg_param.vupdate_width);
 
-               if (pipe_ctx->stream->mall_stream_config.type != SUBVP_PHANTOM) 
{
-                       
pipe_ctx->stream_res.tg->funcs->wait_for_state(pipe_ctx->stream_res.tg, 
CRTC_STATE_VBLANK);
+               if (pipe_ctx->stream->mall_stream_config.type != SUBVP_PHANTOM)
                        
pipe_ctx->stream_res.tg->funcs->wait_for_state(pipe_ctx->stream_res.tg, 
CRTC_STATE_VACTIVE);
-               }
 
                pipe_ctx->stream_res.tg->funcs->set_vtg_params(
                                pipe_ctx->stream_res.tg, 
&pipe_ctx->stream->timing, true);
-- 
2.34.1

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