Documentation/devicetree/bindings/gpio/exar,xra1403.yaml

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/gpio/exar,xra1403.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: XRA1403 16-bit GPIO Expander with Reset Input

maintainers:
  - Nandor Han <nandor.han@ge.com>

description: >
  The XRA1403 is an 16-bit GPIO expander with an SPI interface. Features
  available:

    - Individually programmable inputs:
        - Internal pull-up resistors
        - Polarity inversion
        - Individual interrupt enable
        - Rising edge and/or Falling edge interrupt
        - Input filter
    - Individually programmable outputs:
        - Output Level Control
        - Output Three-State Control

properties:
  compatible:
    const: exar,xra1403

  reg:
    maxItems: 1

  gpio-controller: true

  '#gpio-cells':
    const: 2

  interrupt-controller: true

  '#interrupt-cells':
    const: 2

  reset-gpios:
    description: Control line for the device reset.

required:
  - compatible
  - reg
  - gpio-controller
  - '#gpio-cells'

allOf:
  - $ref: /schemas/spi/spi-peripheral-props.yaml#

unevaluatedProperties: false

examples:
  - |
    #include <dt-bindings/gpio/gpio.h>

    spi {
        #address-cells = <1>;
        #size-cells = <0>;

        gpio@2 {
            compatible = "exar,xra1403";
            reg = <2>;
            spi-max-frequency = <1000000>;
            gpio-controller;
            #gpio-cells = <2>;
            interrupt-controller;
            #interrupt-cells = <2>;
            reset-gpios = <&gpio3 6 GPIO_ACTIVE_LOW>;
        };
    };