From 0976ef315dc3bb04cb709f7d28b0826c0b294889 Mon Sep 17 00:00:00 2001 From: Paul Hsieh Date: Wed, 13 May 2020 11:31:42 +0800 Subject: [PATCH] drm/amd/display: unit show garbage when do OPTC blank [Why] Unit enter to S4, garbage show on screen when do OPTC blank. [How] Wait for vblank then do OPTC blank Signed-off-by: Paul Hsieh Reviewed-by: Tony Cheng Acked-by: Qingqing Zhuo Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c index 0313ca83cdb9..deaafb4782d6 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c @@ -2581,8 +2581,10 @@ void dcn10_blank_pixel_data( } } else if (blank) { dc->hwss.set_abm_immediate_disable(pipe_ctx); - if (stream_res->tg->funcs->set_blank) + if (stream_res->tg->funcs->set_blank) { + stream_res->tg->funcs->wait_for_state(stream_res->tg, CRTC_STATE_VBLANK); stream_res->tg->funcs->set_blank(stream_res->tg, blank); + } } } -- 2.50.1