Commit 98ce0e1c authored by Rob Herring (Arm)'s avatar Rob Herring (Arm) Committed by Bartosz Golaszewski
Browse files

dt-bindings: gpio: Convert exar,xra1403 to DT schema 



Convert XRA1403 16-bit GPIO Expander binding to DT schema format. It's a
straight forward conversion.

Signed-off-by: default avatarRob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20250714202813.3010879-1-robh@kernel.org


Signed-off-by: default avatarBartosz Golaszewski <bartosz.golaszewski@linaro.org>
parent 82388cb2

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

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# 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>;

        };

    };

Documentation/devicetree/bindings/gpio/gpio-xra1403.txt

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GPIO Driver for XRA1403 16-BIT GPIO Expander With Reset Input from EXAR



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

----------

Check documentation for SPI and GPIO controllers regarding properties needed to configure the node.



	- compatible = "exar,xra1403".

	- reg - SPI id of the device.

	- gpio-controller - marks the node as gpio.

	- #gpio-cells - should be two where the first cell is the pin number

		and the second one is used for optional parameters.



Optional properties:

-------------------

	- reset-gpios: in case available used to control the device reset line.

	- interrupt-controller - marks the node as interrupt controller.

	- #interrupt-cells - should be two and represents the number of cells

		needed to encode interrupt source.



Example

--------



	gpioxra0: gpio@2 {

		compatible = "exar,xra1403";

		reg = <2>;



		gpio-controller;

		#gpio-cells = <2>;



		interrupt-controller;

		#interrupt-cells = <2>;



		reset-gpios = <&gpio3 6 GPIO_ACTIVE_LOW>;

		spi-max-frequency = <1000000>;

	};