From 4d1501eb65d606c05f28da12539cf0defd111f75 Mon Sep 17 00:00:00 2001 From: Yongqiang Sun Date: Mon, 21 Aug 2017 11:00:25 -0400 Subject: [PATCH] drm/amd/display: Enable double buffer when unblank crtc. Signed-off-by: Yongqiang Sun Reviewed-by: Tony Cheng Acked-by: Harry Wentland Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/dcn10/dcn10_timing_generator.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_timing_generator.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_timing_generator.c index 6a5f2683c2e5..cc58f43400d7 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_timing_generator.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_timing_generator.c @@ -289,6 +289,9 @@ static void tgn10_unblank_crtc(struct timing_generator *tg) { struct dcn10_timing_generator *tgn10 = DCN10TG_FROM_TG(tg); + REG_UPDATE(OTG_DOUBLE_BUFFER_CONTROL, + OTG_BLANK_DATA_DOUBLE_BUFFER_EN, 1); + REG_UPDATE_2(OTG_BLANK_CONTROL, OTG_BLANK_DATA_EN, 0, OTG_BLANK_DE_MODE, 0); -- 2.20.1