xref: /freebsd/sys/contrib/device-tree/Bindings/rtc/st,m41t80.yaml (revision 8bab661a3316d8bd9b9fbd11a3b4371b91507bd2)

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/rtc/st,m41t80.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: ST M41T80 family of RTC and compatible

maintainers:
  - Alexandre Belloni <alexandre.belloni@bootlin.com>

properties:
  compatible:
    enum:
      - st,m41t62
      - st,m41t65
      - st,m41t80
      - st,m41t81
      - st,m41t81s
      - st,m41t82
      - st,m41t83
      - st,m41t84
      - st,m41t85
      - st,m41t87
      - microcrystal,rv4162

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  "#clock-cells":
    const: 1

  clock-output-names:
    maxItems: 1
    description: From common clock binding to override the default output clock name.

  clock:
    type: object
    $ref: /schemas/clock/fixed-clock.yaml#
    properties:
      clock-frequency:
        const: 32768

allOf:
  - $ref: rtc.yaml

unevaluatedProperties: false

required:
  - compatible
  - reg

examples:
  - |
    i2c {
      #address-cells = <1>;
      #size-cells = <0>;
      rtc@68 {
        compatible = "st,m41t80";
        reg = <0x68>;
        interrupt-parent = <&UIC0>;
        interrupts = <0x9 0x8>;

        clock {
          compatible = "fixed-clock";
          #clock-cells = <0>;
          clock-frequency = <32768>;
        };
      };
    };