[PATCH 14/20] drm/amd/display: Don't offload flip if not only address update

[Alex Hung]

From: Alvin Lee <alvin.lee2 at amd.com>

[WHAT & HOW]
Fast updates can consist of some stream updates as well (i.e., out_csc).
In these cases we should not offload the flip to FW as we can only
offload address only updates to FW.

Reviewed-by: Chris Park <chris.park at amd.com>
Acked-by: Alex Hung <alex.hung at amd.com>
Signed-off-by: Alvin Lee <alvin.lee2 at amd.com>
---
 drivers/gpu/drm/amd/display/dc/core/dc.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 0f20a3d96d93..0208b28517ac 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -3664,6 +3664,10 @@ static void commit_planes_for_stream_fast(struct dc *dc,
 				break;
 			}
 		}
+		if (stream_update) {
+			/* more than address update, need to acquire FAMS2 lock */
+			should_offload_fams2_flip = false;
+		}
 	}
 
 	dc_exit_ips_for_hw_access(dc);
-- 
2.34.1