From: TungYu Lu <tungyu.lu@xxxxxxx> [WHY] Tiled displays showed not aligned on 8K60hz when system resumed from S3/S4. [HOW] Do dc_trigger_sync to re-sync pipes to ensure OTG become synced. Reviewed-by: Alvin Lee <alvin.lee2@xxxxxxx> Cc: Mario Limonciello <mario.limonciello@xxxxxxx> Cc: Alex Deucher <alexander.deucher@xxxxxxx> Cc: stable@xxxxxxxxxxxxxxx Acked-by: Alex Hung <alex.hung@xxxxxxx> Signed-off-by: TungYu Lu <tungyu.lu@xxxxxxx> --- drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c index bdbb4a71651f..fe62478fbcde 100644 --- a/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c @@ -1254,6 +1254,8 @@ void dcn32_resync_fifo_dccg_dio(struct dce_hwseq *hws, struct dc *dc, struct dc_ pipe->stream_res.tg->funcs->enable_crtc(pipe->stream_res.tg); } } + + dc_trigger_sync(dc, dc->current_state); } void dcn32_unblank_stream(struct pipe_ctx *pipe_ctx, -- 2.34.1
