diff --git a/Documentation/devicetree/bindings/remoteproc/mtk,scp.yaml b/Documentation/devicetree/bindings/remoteproc/mtk,scp.yaml
index 832064d635b3..eec3b9c4c713 100644
--- a/Documentation/devicetree/bindings/remoteproc/mtk,scp.yaml
+++ b/Documentation/devicetree/bindings/remoteproc/mtk,scp.yaml
@@ -54,6 +54,9 @@ properties:
       firmware search path containing the firmware image used when
       initializing SCP.
 
+  memory-region:
+    maxItems: 1
+
 required:
   - compatible
   - reg