From: Paul Hsieh <paul.hsieh@xxxxxxx>
[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 <paul.hsieh@xxxxxxx>
Reviewed-by: Tony Cheng <Tony.Cheng@xxxxxxx>
Acked-by: Qingqing Zhuo <qingqing.zhuo@xxxxxxx>
---
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);
+ }
}
}
--
2.17.1
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