[PATCH v4 3/5] dt-bindings: pinctrl: Add apple,npins property to apple,pinctrl

[Joey Gouly <joey.gouly@arm.com>]

This property is used to describe the total number of pins on this
particular pinctrl hardware block.

Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
---
 .../devicetree/bindings/pinctrl/apple,pinctrl.yaml          | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/pinctrl/apple,pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/apple,pinctrl.yaml
index 0b3eb068fb12..07b00de79755 100644
--- a/Documentation/devicetree/bindings/pinctrl/apple,pinctrl.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/apple,pinctrl.yaml
@@ -34,6 +34,10 @@ properties:
   gpio-ranges:
     maxItems: 1
 
+  apple,npins:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: The number of pins in this GPIO controller.
+
   interrupts:
     description: One interrupt for each of the (up to 7) interrupt
       groups supported by the controller sorted by interrupt group
@@ -69,6 +73,7 @@ required:
   - gpio-controller
   - '#gpio-cells'
   - gpio-ranges
+  - apple,npins
 
 additionalProperties: false
 
@@ -89,6 +94,7 @@ examples:
         gpio-controller;
         #gpio-cells = <2>;
         gpio-ranges = <&pinctrl 0 0 212>;
+        apple,npins = <212>;
 
         interrupt-controller;
         #interrupt-cells = <2>;
-- 
2.17.1