drm/amd/display: Enable double buffer when unblank crtc.

[linux-2.6-microblaze.git] / drivers / gpu / drm / amd / display / dc / dcn10 / dcn10_timing_generator.c

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 6a5f268..cc58f43 100644 (file)
--- 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);