Commit d45c6e7a authored by Krzysztof Kozlowski's avatar Krzysztof Kozlowski Committed by Rob Herring
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dt-bindings: nfc: st,st95hf: convert to dtschema 



Convert the ST ST95HF NFC controller to DT schema format.

Signed-off-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20211011073934.34340-6-krzysztof.kozlowski@canonical.com


Signed-off-by: default avatarRob Herring <robh@kernel.org>
parent 4d9bae33

Documentation/devicetree/bindings/net/nfc/st,st95hf.yaml

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/net/nfc/st,st95hf.yaml#

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



title: STMicroelectronics ST95HF NFC controller



maintainers:

  - Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>



properties:

  compatible:

    const: st,st95hf



  enable-gpio:

    description: Output GPIO pin used for enabling/disabling the controller



  interrupts:

    maxItems: 1



  reg:

    maxItems: 1



  st95hfvin-supply:

    description: ST95HF transceiver's Vin regulator supply



  spi-max-frequency: true



required:

  - compatible

  - enable-gpio

  - interrupts

  - reg

  - spi-max-frequency



additionalProperties: false



examples:

  - |

    #include <dt-bindings/gpio/gpio.h>

    #include <dt-bindings/interrupt-controller/irq.h>



    spi {

        #address-cells = <1>;

        #size-cells = <0>;



        nfc@0{

            compatible = "st,st95hf";

            reg = <0>;



            spi-max-frequency = <1000000>;

            enable-gpio = <&pio4 GPIO_ACTIVE_HIGH>;

            interrupt-parent = <&pio0>;

            interrupts = <7 IRQ_TYPE_EDGE_FALLING>;

        };

    };

Documentation/devicetree/bindings/net/nfc/st95hf.txt

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* STMicroelectronics : NFC Transceiver ST95HF



ST NFC Transceiver is required to attach with SPI bus.

ST95HF node should be defined in DT as SPI slave device of SPI

master with which ST95HF transceiver is physically connected.

The properties defined below are required to be the part of DT

to include ST95HF transceiver into the platform.



Required properties:

===================

- reg: Address of SPI slave "ST95HF transceiver" on SPI master bus.



- compatible: should be "st,st95hf" for ST95HF NFC transceiver



- spi-max-frequency: Max. operating SPI frequency for ST95HF

	transceiver.



- enable-gpio: GPIO line to enable ST95HF transceiver.



- interrupts : Standard way to define ST95HF transceiver's out

	interrupt.



Optional property:

=================

- st95hfvin-supply : This is an optional property. It contains a

	phandle to ST95HF transceiver's regulator supply node in DT.



Example:

=======

spi@9840000 {

	reg = <0x9840000 0x110>;

	#address-cells = <1>;

	#size-cells = <0>;

	cs-gpios = <&pio0 4>;



	st95hf@0{

		reg = <0>;

		compatible = "st,st95hf";

		spi-max-frequency = <1000000>;

		enable-gpio = <&pio4 0>;

		interrupt-parent = <&pio0>;

		interrupts = <7 IRQ_TYPE_EDGE_FALLING>;

	};



};