diff --git a/Documentation/devicetree/bindings/arm/rockchip.yaml b/Documentation/devicetree/bindings/arm/rockchip.yaml
index 7295eecc6de7..5c1b9f0e4cc1 100644
--- a/Documentation/devicetree/bindings/arm/rockchip.yaml
+++ b/Documentation/devicetree/bindings/arm/rockchip.yaml
@@ -547,6 +547,11 @@ properties:
           - const: radxa,rockpi4
           - const: rockchip,rk3399
 
+      - description: Radxa ROCK 4C+
+        items:
+          - const: radxa,rock-4c-plus
+          - const: rockchip,rk3399
+
       - description: Radxa ROCK Pi E
         items:
           - const: radxa,rockpi-e