diff --git a/Documentation/devicetree/bindings/nvmem/layouts/fixed-layout.yaml b/Documentation/devicetree/bindings/nvmem/layouts/fixed-layout.yaml
index 9bd34bd5af30..b01567f99284 100644
--- a/Documentation/devicetree/bindings/nvmem/layouts/fixed-layout.yaml
+++ b/Documentation/devicetree/bindings/nvmem/layouts/fixed-layout.yaml
@@ -27,7 +27,7 @@ properties:
     const: 1
 
 patternProperties:
-  "@[a-f0-9]+$":
+  "@[a-f0-9]+(,[0-7])?$":
     type: object
     $ref: fixed-cell.yaml
     unevaluatedProperties: false