diff --git a/Documentation/devicetree/bindings/rtc/allwinner,sun6i-a31-rtc.yaml b/Documentation/devicetree/bindings/rtc/allwinner,sun6i-a31-rtc.yaml
index f2b91186ed37..1699e3576b91 100644
--- a/Documentation/devicetree/bindings/rtc/allwinner,sun6i-a31-rtc.yaml
+++ b/Documentation/devicetree/bindings/rtc/allwinner,sun6i-a31-rtc.yaml
@@ -19,6 +19,7 @@ properties:
       - enum:
           - allwinner,sun6i-a31-rtc
           - allwinner,sun8i-a23-rtc
+          - allwinner,sun8i-b288-rtc
           - allwinner,sun8i-h3-rtc
           - allwinner,sun8i-r40-rtc
           - allwinner,sun8i-v3-rtc
@@ -162,6 +163,7 @@ allOf:
         compatible:
           contains:
             enum:
+              - allwinner,sun8i-b288-rtc
               - allwinner,sun8i-r40-rtc
               - allwinner,sun50i-h616-rtc
               - allwinner,sun50i-r329-rtc