[PATCH 18/28] drm/amd/display: Check cursor address before program.

[Harry Wentland]

From: Yongqiang Sun <yongqiang.sun at amd.com>

Program cursor attributes during set mode is only needed
in case of pipe slipt, bottom pipe should be programmed
same as top pipe. Need to program if address is 0.

Signed-off-by: Yongqiang Sun <yongqiang.sun at amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng at amd.com>
Acked-by: Harry Wentland <Harry.Wentland at amd.com>
---
 drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c | 3 ++-
 1 file changed, 2 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 0d1f0e2a4350..c82d667c35a3 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
@@ -2436,7 +2436,8 @@ static void program_all_pipe_in_tree(
 		/* TODO: this is a hack w/a for switching from mpo to pipe split */
 		dc_stream_set_cursor_position(pipe_ctx->stream, &position);
 
-		dc_stream_set_cursor_attributes(pipe_ctx->stream,
+		if (pipe_ctx->stream->cursor_attributes.address.quad_part != 0)
+			dc_stream_set_cursor_attributes(pipe_ctx->stream,
 				&pipe_ctx->stream->cursor_attributes);
 
 		if (cur_pipe_ctx->plane_state != pipe_ctx->plane_state) {
-- 
2.14.1