Add poll-interval support for the adc-joystick documentation. This is
an optional value and if not provided the adc-joystick works as it
does today (with triggered buffers). If this value is provided, the
adc-joystick driver is polled at the specified interval.

Signed-off-by: Maya Matuszczyk <redacted>
Signed-off-by: Chris Morgan <redacted>
---
 Documentation/devicetree/bindings/input/adc-joystick.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/input/adc-joystick.yaml b/Documentation/devicetree/bindings/input/adc-joystick.yaml
index 2ee04e03bc22..2d755091e46d 100644
--- a/Documentation/devicetree/bindings/input/adc-joystick.yaml
+++ b/Documentation/devicetree/bindings/input/adc-joystick.yaml

@@ -18,6 +18,12 @@ properties:
   compatible:
     const: adc-joystick
 
+  poll-interval:
+    description:
+      Poll interval time in milliseconds. If not specified, device will use
+      triggered buffer.
+    $ref: /schemas/types.yaml#/definitions/uint32
+
   io-channels:
     minItems: 1
     maxItems: 1024

-- 
2.34.1