From 361719279f865630a1db1f167dd01c385543f4e9 Mon Sep 17 00:00:00 2001 From: Yongqiang Sun Date: Thu, 6 Apr 2017 16:21:58 -0400 Subject: [PATCH 0339/4131] drm/amd/display: Add same check as reset pipes for programing backend regs. Signed-off-by: Yongqiang Sun Acked-by: Harry Wentland Reviewed-by: Tony Cheng Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c index 839c344..7430be5 100644 --- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c +++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c @@ -1689,6 +1689,10 @@ enum dc_status dce110_apply_ctx_to_hw( if (pipe_ctx->stream == pipe_ctx_old->stream) continue; + if (pipe_ctx->stream && pipe_ctx_old->stream + && !pipe_need_reprogram(pipe_ctx_old, pipe_ctx)) + continue; + if (pipe_ctx->top_pipe) continue; -- 2.7.4