diff --git a/Documentation/devicetree/bindings/nvmem/nvmem.yaml b/Documentation/devicetree/bindings/nvmem/nvmem.yaml
index b8dc3d2b6e92..456fb808100a 100644
--- a/Documentation/devicetree/bindings/nvmem/nvmem.yaml
+++ b/Documentation/devicetree/bindings/nvmem/nvmem.yaml
@@ -40,7 +40,7 @@ properties:
     maxItems: 1
 
 patternProperties:
-  "^.*@[0-9a-f]+$":
+  "@[0-9a-f]+(,[0-7])?$":
     type: object
 
     properties: