[PATCH v7 11/13] drm: renesas: rz-du: Add multi-VSP instance support in plane selection

[Tommaso Merciai]

rzg2l_du_vsp_get_drm_plane() scans all DRM planes for a matching
pipe_index, but with multiple VSP instances two planes belonging to
different VSPs can share the same index.  Add a vsp pointer check so
the search is scoped to the CRTC's own VSP instance.

No functional change for single-VSP platforms.

Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@xxxxxxxxxxxxxx>
---
v6->v7:
 - New patch.

 drivers/gpu/drm/renesas/rz-du/rzg2l_du_vsp.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/renesas/rz-du/rzg2l_du_vsp.c b/drivers/gpu/drm/renesas/rz-du/rzg2l_du_vsp.c
index bc205c25cd21..1edbcb9f134f 100644
--- a/drivers/gpu/drm/renesas/rz-du/rzg2l_du_vsp.c
+++ b/drivers/gpu/drm/renesas/rz-du/rzg2l_du_vsp.c
@@ -80,7 +80,8 @@ struct drm_plane *rzg2l_du_vsp_get_drm_plane(struct rzg2l_du_crtc *crtc,
 	drm_for_each_plane(plane, &rcdu->ddev) {
 		struct rzg2l_du_vsp_plane *vsp_plane = to_rzg2l_vsp_plane(plane);
 
-		if (vsp_plane->index == pipe_index)
+		if (vsp_plane->vsp == crtc->vsp &&
+		    vsp_plane->index == pipe_index)
 			break;
 	}
 
-- 
2.54.0