Commit fdaf4c5a authored by Javier Carrasco's avatar Javier Carrasco Committed by Alexandre Belloni
Browse files

dt-bindings: rtc: pcf2123: convert to YAML 



Convert the existing txt binding to the preferred YAML format.

The pcf2123 node may contain SPI settings such as spi-cs-high and
spi-max-frequency, which keeps it from being added to the trivial-rtc
binding with its current definition. Add a reference to
spi-peripheral-props.yaml to account for that.

The "interrupts" property was missing in the binding although it is
already supported. Add the missing property in the new binding.

Signed-off-by: default avatarJavier Carrasco <javier.carrasco.cruz@gmail.com>
Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230907-topic-pcf2123_yaml-v2-1-ea87a8e12190@gmail.com


Signed-off-by: default avatarAlexandre Belloni <alexandre.belloni@bootlin.com>
parent f5f4c982

Documentation/devicetree/bindings/rtc/nxp,pcf2123.yaml

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/rtc/nxp,pcf2123.yaml#

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



title: NXP PCF2123 SPI Real Time Clock



maintainers:

  - Javier Carrasco <javier.carrasco.cruz@gmail.com>



allOf:

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

  - $ref: rtc.yaml#



properties:

  compatible:

    enum:

      - nxp,pcf2123



  reg:

    maxItems: 1



  interrupts:

    maxItems: 1



required:

  - compatible

  - reg



unevaluatedProperties: false



examples:

  - |

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

    spi {

        #address-cells = <1>;

        #size-cells = <0>;



        rtc@3 {

            compatible = "nxp,pcf2123";

            reg = <3>;

            interrupts = <GIC_SPI 130 IRQ_TYPE_LEVEL_LOW>;

            spi-cs-high;

        };

    };

...

Documentation/devicetree/bindings/rtc/nxp,rtc-2123.txt

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NXP PCF2123 SPI Real Time Clock



Required properties:

- compatible: should be: "nxp,pcf2123"

                      or "microcrystal,rv2123"

- reg: should be the SPI slave chipselect address



Optional properties:

- spi-cs-high: PCF2123 needs chipselect high



Example:



pcf2123: rtc@3 {

	compatible = "nxp,pcf2123"

	reg = <3>

	spi-cs-high;

};