Commit c3a0ee85 authored by Javier Carrasco's avatar Javier Carrasco Committed by Alexandre Belloni
Browse files

dt-bindings: rtc: stmp3xxx-rtc: convert to dtschema 



Convert existing binding to dtschema to support validation and
add the undocumented compatible 'fsl,imx23-rtc'.

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/20240413-rtc_dtschema-v3-4-eff368bcc471@gmail.com


Signed-off-by: default avatarAlexandre Belloni <alexandre.belloni@bootlin.com>
parent bbd3e436

Documentation/devicetree/bindings/rtc/fsl,stmp3xxx-rtc.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/fsl,stmp3xxx-rtc.yaml#

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



title: STMP3xxx/i.MX28 Time Clock Controller



maintainers:

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



allOf:

  - $ref: rtc.yaml#



properties:

  compatible:

    oneOf:

      - items:

          - enum:

              - fsl,imx28-rtc

              - fsl,imx23-rtc

          - const: fsl,stmp3xxx-rtc

      - const: fsl,stmp3xxx-rtc



  reg:

    maxItems: 1



  interrupts:

    maxItems: 1



  stmp,crystal-freq:

    description:

      Override crystal frequency as determined from fuse bits.

      Use <0> for "no crystal".

    $ref: /schemas/types.yaml#/definitions/uint32

    enum: [0, 32000, 32768]



required:

  - compatible

  - reg

  - interrupts



unevaluatedProperties: false



examples:

  - |

    rtc@80056000 {

        compatible = "fsl,imx28-rtc", "fsl,stmp3xxx-rtc";

        reg = <0x80056000 2000>;

        interrupts = <29>;

    };

Documentation/devicetree/bindings/rtc/stmp3xxx-rtc.txt

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* STMP3xxx/i.MX28 Time Clock controller



Required properties:

- compatible: should be one of the following.

    * "fsl,stmp3xxx-rtc"

- reg: physical base address of the controller and length of memory mapped

  region.

- interrupts: rtc alarm interrupt



Optional properties:

- stmp,crystal-freq: override crystal frequency as determined from fuse bits.

  Only <32000> and <32768> are possible for the hardware.  Use <0> for

  "no crystal".



Example:



rtc@80056000 {

	compatible = "fsl,imx28-rtc", "fsl,stmp3xxx-rtc";

	reg = <0x80056000 2000>;

	interrupts = <29>;

};