Commit 243dde59 authored by David Heidelberg's avatar David Heidelberg Committed by Rob Herring
Browse files

dt-bindings: net: nfc: nxp,pn544: Convert txt bindings to yaml 



Convert bindings for NXP PN544 NFC driver to YAML syntax.

Signed-off-by: default avatarDavid Heidelberg <david@ixit.cz>
Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20211017160210.85543-1-david@ixit.cz


Signed-off-by: default avatarRob Herring <robh@kernel.org>
parent 28ead0a4

Documentation/devicetree/bindings/net/nfc/nxp,pn544.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/nxp,pn544.yaml#

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



title: NXP Semiconductors PN544 NFC Controller



maintainers:

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



properties:

  compatible:

    const: nxp,pn544-i2c



  reg:

    maxItems: 1



  interrupts:

    maxItems: 1



  enable-gpios:

    description: Output GPIO pin used for enabling/disabling the PN544

    maxItems: 1



  firmware-gpios:

    description: Output GPIO pin used to enter firmware download mode

    maxItems: 1



required:

  - compatible

  - reg

  - interrupts

  - enable-gpios

  - firmware-gpios



additionalProperties: false



examples:

  - |

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

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



    i2c {

        #address-cells = <1>;

        #size-cells = <0>;



        nfc@28 {

            compatible = "nxp,pn544-i2c";

            reg = <0x28>;



            interrupt-parent = <&gpio1>;

            interrupts = <17 IRQ_TYPE_LEVEL_HIGH>;



            enable-gpios = <&gpio3 21 GPIO_ACTIVE_HIGH>;

            firmware-gpios = <&gpio3 19 GPIO_ACTIVE_HIGH>;

        };

    };

Documentation/devicetree/bindings/net/nfc/pn544.txt

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* NXP Semiconductors PN544 NFC Controller



Required properties:

- compatible: Should be "nxp,pn544-i2c".

- clock-frequency: I²C work frequency.

- reg: address on the bus

- interrupts: GPIO interrupt to which the chip is connected

- enable-gpios: Output GPIO pin used for enabling/disabling the PN544

- firmware-gpios: Output GPIO pin used to enter firmware download mode



Optional SoC Specific Properties:

- pinctrl-names: Contains only one value - "default".

- pintctrl-0: Specifies the pin control groups used for this controller.



Example (for ARM-based BeagleBone with PN544 on I2C2):



&i2c2 {





	pn544: pn544@28 {



		compatible = "nxp,pn544-i2c";



		reg = <0x28>;

		clock-frequency = <400000>;



		interrupt-parent = <&gpio1>;

		interrupts = <17 IRQ_TYPE_LEVEL_HIGH>;



		enable-gpios = <&gpio3 21 GPIO_ACTIVE_HIGH>;

		firmware-gpios = <&gpio3 19 GPIO_ACTIVE_HIGH>;

	};

};