1 files changed, 2 insertions, 1 deletions
diff --git a/dts/Bindings/usb/smsc,usb3503.yaml b/dts/Bindings/usb/smsc,usb3503.yaml
index 39228a506b..321b6f1661 100644
--- a/dts/Bindings/usb/smsc,usb3503.yaml
+++ b/dts/Bindings/usb/smsc,usb3503.yaml
@@ -45,6 +45,7 @@ properties:
       property if all ports have to be enabled.
 
   initial-mode:
+    $ref: /schemas/types.yaml#/definitions/uint32
     enum: [1, 2]
     description: >
       Specifies initial mode. 1 for Hub mode, 2 for standby mode.
@@ -77,7 +78,7 @@ examples:
       i2c {
           #address-cells = <1>;
           #size-cells = <0>;
-        
+
           usb-hub@8 {
               compatible = "smsc,usb3503";
               reg = <0x08>;