diff --git a/Documentation/devicetree/bindings/arm/rockchip.yaml b/Documentation/devicetree/bindings/arm/rockchip.yaml
index db2e35796795..7025d00c06cc 100644
--- a/Documentation/devicetree/bindings/arm/rockchip.yaml
+++ b/Documentation/devicetree/bindings/arm/rockchip.yaml
@@ -430,8 +430,12 @@ properties:
           - const: radxa,rock
           - const: rockchip,rk3188
 
-      - description: Radxa ROCK Pi 4
+      - description: Radxa ROCK Pi 4A/B/C
         items:
+          - enum:
+              - radxa,rockpi4a
+              - radxa,rockpi4b
+              - radxa,rockpi4c
           - const: radxa,rockpi4
           - const: rockchip,rk3399