dt-bindings: pinctrl: add #interrupt-cells to apple,pinctrl

The GPIO/pinctrl hardware can act as an interrupt-controller, so add
the #interrupt-cells property to the binding.

Signed-off-by: Joey Gouly <[email protected]>
Reviewed-by: Sven Peter <[email protected]>
Acked-by: Rob Herring <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Linus Walleij <[email protected]>

Author: jgouly

Documentation/devicetree/bindings/pinctrl/apple,pinctrl.yaml

@@ -43,6 +43,9 @@ properties:
 
   interrupt-controller: true
 
+  '#interrupt-cells':
+    const: 2
+
 patternProperties:
   '-pins$':
     type: object
@@ -88,6 +91,7 @@ examples:
         gpio-ranges = <&pinctrl 0 0 212>;
 
         interrupt-controller;
+        #interrupt-cells = <2>;
         interrupt-parent = <&aic>;
         interrupts = <AIC_IRQ 16 IRQ_TYPE_LEVEL_HIGH>,
                      <AIC_IRQ 17 IRQ_TYPE_LEVEL_HIGH>,