diff --git a/Documentation/devicetree/bindings/arm/sunxi.yaml b/Documentation/devicetree/bindings/arm/sunxi.yaml
index e6443c266fa1..82dd58b95f8a 100644
--- a/Documentation/devicetree/bindings/arm/sunxi.yaml
+++ b/Documentation/devicetree/bindings/arm/sunxi.yaml
@@ -96,6 +96,12 @@ properties:
           - const: allwinner,ba10-tvbox
           - const: allwinner,sun4i-a10
 
+      - description: Baijie A133 HelperBoard
+        items:
+          - const: baijie,helperboard-a133
+          - const: baijie,helperboard-a133-core
+          - const: allwinner,sun50i-a100
+
       - description: BananaPi
         items:
           - const: lemaker,bananapi