drm/amd/display: skip wait vblank

[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.Lee2@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Zhikai Zhai <zhikai.zhai@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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 53669f8..69ea1f4 100644 (file)
--- 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);