diff --git a/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.yaml
index 5b742513aecb..677a285ca416 100644
--- a/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.yaml
@@ -131,7 +131,7 @@ additionalProperties:
               description:
                 Pin bank index.
             - minimum: 0
-              maximum: 6
+              maximum: 10
               description:
                 Mux 0 means GPIO and mux 1 to N means
                 the specific device function.