diff --git a/Documentation/devicetree/bindings/media/mediatek-jpeg-encoder.yaml b/Documentation/devicetree/bindings/media/mediatek-jpeg-encoder.yaml
index 37800e1908cc..83c020a673d6 100644
--- a/Documentation/devicetree/bindings/media/mediatek-jpeg-encoder.yaml
+++ b/Documentation/devicetree/bindings/media/mediatek-jpeg-encoder.yaml
@@ -38,7 +38,8 @@ properties:
     maxItems: 1
 
   iommus:
-    maxItems: 2
+    minItems: 2
+    maxItems: 4
     description: |
       Points to the respective IOMMU block with master port as argument, see
       Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml for details.