Commit 45ca1607 authored by Nobuhiro Iwamatsu's avatar Nobuhiro Iwamatsu Committed by Bartosz Golaszewski
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dt-bindings: gpio: zynq: convert bindings to YAML 



Convert gpio for Xilinx Zynq SoC bindings documentation to YAML.

Signed-off-by: default avatarNobuhiro Iwamatsu <iwamatsu@nigauri.org>
Reviewed-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarBartosz Golaszewski <bgolaszewski@baylibre.com>
parent c830b87a

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

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Xilinx Zynq GPIO controller Device Tree Bindings

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



Required properties:

- #gpio-cells 		: Should be two

			  - First cell is the GPIO line number

			  - Second cell is used to specify optional

			    parameters (unused)

- compatible		: Should be "xlnx,zynq-gpio-1.0" or

			  "xlnx,zynqmp-gpio-1.0" or "xlnx,versal-gpio-1.0

			  or "xlnx,pmc-gpio-1.0

- clocks		: Clock specifier (see clock bindings for details)

- gpio-controller	: Marks the device node as a GPIO controller.

- interrupts		: Interrupt specifier (see interrupt bindings for

			  details)

- interrupt-controller	: Marks the device node as an interrupt controller.

- #interrupt-cells 	: Should be 2.  The first cell is the GPIO number.

			  The second cell bits[3:0] is used to specify trigger type and level flags:

			      1 = low-to-high edge triggered.

			      2 = high-to-low edge triggered.

			      4 = active high level-sensitive.

			      8 = active low level-sensitive.

- reg			: Address and length of the register set for the device



Example:

	gpio@e000a000 {

		#gpio-cells = <2>;

		compatible = "xlnx,zynq-gpio-1.0";

		clocks = <&clkc 42>;

		gpio-controller;

		interrupt-parent = <&intc>;

		interrupts = <0 20 4>;

		interrupt-controller;

		#interrupt-cells = <2>;

		reg = <0xe000a000 0x1000>;

	};

Documentation/devicetree/bindings/gpio/gpio-zynq.yaml

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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/gpio/gpio-zynq.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: Xilinx Zynq GPIO controller Device Tree Bindings



maintainers:

  - Michal Simek <michal.simek@xilinx.com>



properties:

  compatible:

    const: xlnx,zynq-gpio-1.0



  reg:

    maxItems: 1



  "#gpio-cells":

    const: 2



  interrupts:

    maxItems: 1



  gpio-controller: true



  interrupt-controller: true



  "#interrupt-cells":

    const: 2



  clocks:

    maxItems: 1



required:

  - compatible

  - reg

  - "#gpio-cells"

  - interrupts

  - gpio-controller

  - interrupt-controller

  - "#interrupt-cells"

  - clocks



additionalProperties: false



examples:

  - |

    gpio@e000a000 {

      #gpio-cells = <2>;

      compatible = "xlnx,zynq-gpio-1.0";

      clocks = <&clkc 42>;

      gpio-controller;

      interrupt-parent = <&intc>;

      interrupts = <0 20 4>;

      interrupt-controller;

      #interrupt-cells = <2>;

      reg = <0xe000a000 0x1000>;

    };