diff --git a/Documentation/devicetree/bindings/regulator/socionext,uniphier-regulator.yaml b/Documentation/devicetree/bindings/regulator/socionext,uniphier-regulator.yaml
index 861d5f3c79e8..1218f21ba320 100644
--- a/Documentation/devicetree/bindings/regulator/socionext,uniphier-regulator.yaml
+++ b/Documentation/devicetree/bindings/regulator/socionext,uniphier-regulator.yaml
@@ -27,6 +27,7 @@ properties:
       - socionext,uniphier-pxs2-usb3-regulator
       - socionext,uniphier-ld20-usb3-regulator
       - socionext,uniphier-pxs3-usb3-regulator
+      - socionext,uniphier-nx1-usb3-regulator
 
   reg:
     maxItems: 1