diff --git a/Documentation/devicetree/bindings/input/adc-joystick.yaml b/Documentation/devicetree/bindings/input/adc-joystick.yaml
index 64d961458ac7cfc4b67e0c99a6bac794007a719e..da0f8dfca8bfd951ea2ee8ebf0e491ac2e5ba701 100644
--- a/Documentation/devicetree/bindings/input/adc-joystick.yaml
+++ b/Documentation/devicetree/bindings/input/adc-joystick.yaml
@@ -14,6 +14,9 @@ description: >
   Bindings for joystick devices connected to ADC controllers supporting
   the Industrial I/O subsystem.
 
+allOf:
+  - $ref: input.yaml#
+
 properties:
   compatible:
     const: adc-joystick
@@ -28,6 +31,8 @@ properties:
       https://github.com/devicetree-org/dt-schema/blob/master/schemas/iio/iio-consumer.yaml
       for details.
 
+  poll-interval: true
+
   '#address-cells':
     const: 1