diff --git a/Documentation/devicetree/bindings/spi/mediatek,spi-mtk-nor.yaml b/Documentation/devicetree/bindings/spi/mediatek,spi-mtk-nor.yaml
index 7393f30535df..4fe929bfcec9 100644
--- a/Documentation/devicetree/bindings/spi/mediatek,spi-mtk-nor.yaml
+++ b/Documentation/devicetree/bindings/spi/mediatek,spi-mtk-nor.yaml
@@ -43,14 +43,19 @@ properties:
     maxItems: 1
 
   clocks:
+    minItems: 2
     items:
       - description: clock used for spi bus
       - description: clock used for controller
+      - description: clock used for nor dma bus. this depends on hardware
+                     design, so this is optional.
 
   clock-names:
+    minItems: 2
     items:
       - const: spi
       - const: sf
+      - const: axi
 
 required:
   - compatible
@@ -84,4 +89,3 @@ examples:
         };
       };
     };
-