diff --git a/Documentation/devicetree/bindings/arm/rockchip.yaml b/Documentation/devicetree/bindings/arm/rockchip.yaml
index 51c110112b64..01d44bb87f00 100644
--- a/Documentation/devicetree/bindings/arm/rockchip.yaml
+++ b/Documentation/devicetree/bindings/arm/rockchip.yaml
@@ -802,6 +802,11 @@ properties:
           - const: radxa,cm3i
           - const: rockchip,rk3568
 
+      - description: Radxa E20C
+        items:
+          - const: radxa,e20c
+          - const: rockchip,rk3528
+
       - description: Radxa Rock
         items:
           - const: radxa,rock