[PATCH 08/18] drm/amd/display: Stop waiting for vblank during pipe programming

[Alex Hung]

From: Martin Leung <Martin.Leung at amd.com>

[why and how]
This line was originally removed for a compliance issue, but then
reverted as it caused a fringe underflow case.

However, the addition of this line caused a underflow regression
when subVP is on, and it needs to be removed again. We plan to
fix subvp underflow and then re-add in this line. After that,
we will investigate what to do next for the compliance issue.

Reviewed-by: Alvin Lee <Alvin.Lee2 at amd.com>
Acked-by: Alex Hung <alex.hung at amd.com>
Signed-off-by: Martin Leung <Martin.Leung at amd.com>
---
 drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c | 1 -
 1 file changed, 1 deletion(-)

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 b465a83bde6f..f3334f513eb4 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
@@ -1663,7 +1663,6 @@ static void dcn20_program_pipe(
 				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);
 			pipe_ctx->stream_res.tg->funcs->wait_for_state(pipe_ctx->stream_res.tg, CRTC_STATE_VACTIVE);
 		}
 
-- 
2.38.1