Commit bb718cad authored by Rob Herring's avatar Rob Herring
Browse files

dt-bindings: rtc: Add Arm PL031 schema 



The PL031 RTC binding has been in use for a long time, but never got
documented. Fortunately, it's simple and existing users are consistent.

Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: linux-rtc@vger.kernel.org
Acked-by: default avatarAlexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: default avatarRob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210607193718.3090202-1-robh@kernel.org/
parent 67c54655

Documentation/devicetree/bindings/rtc/arm,pl031.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/arm,pl031.yaml#

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



title: Arm Primecell PL031 Real Time Clock



select:

  properties:

    compatible:

      contains:

        const: arm,pl031

  required:

    - compatible



allOf:

  - $ref: rtc.yaml#



maintainers:

  - Rob Herring <robh@kernel.org>



properties:

  compatible:

    items:

      - const: arm,pl031

      - const: arm,primecell



  reg:

    maxItems: 1



  interrupts:

    maxItems: 1



  clocks:

    maxItems: 1



  clock-names:

    maxItems: 1



  start-year: true



required:

  - compatible

  - reg

  - clocks

  - clock-names



additionalProperties: false



examples:

  - |

    rtc@10017000 {

        compatible = "arm,pl031", "arm,primecell";

        reg = <0x10017000 0x1000>;

        clocks = <&pclk>;

        clock-names = "apb_pclk";

    };