diff --git a/Documentation/devicetree/bindings/mtd/st,spear600-smi.yaml b/Documentation/devicetree/bindings/mtd/st,spear600-smi.yaml
index d065df269657..62d4359908f2 100644
--- a/Documentation/devicetree/bindings/mtd/st,spear600-smi.yaml
+++ b/Documentation/devicetree/bindings/mtd/st,spear600-smi.yaml
@@ -60,6 +60,8 @@ required:
   - compatible
   - reg
   - clock-rate
+  - "#address-cells"
+  - "#size-cells"
 
 unevaluatedProperties: false