xref: /freebsd/sys/contrib/device-tree/Bindings/clock/maxim,max9485.yaml (revision 833e5d42ab135b0238e61c5b3c19b8619677cbfa)

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/clock/maxim,max9485.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Maxim MAX9485 Programmable Audio Clock Generator

maintainers:
  - Daniel Mack <daniel@zonque.org>

description: >
  Maxim MAX9485 Programmable Audio Clock Generator exposes 4 clocks in total:

    - MAX9485_MCLKOUT:  A gated, buffered output of the input clock of 27 MHz
    - MAX9485_CLKOUT:   A PLL that can be configured to 16 different discrete
                        frequencies
    - MAX9485_CLKOUT[1,2]:  Two gated outputs for MAX9485_CLKOUT

  MAX9485_CLKOUT[1,2] are children of MAX9485_CLKOUT which upchain all rate set
  requests.

properties:
  compatible:
    const: maxim,max9485

  reg:
    maxItems: 1

  clocks:
    description: Input clock. Must provide 27 MHz
    maxItems: 1

  clock-names:
    items:
      - const: xclk

  '#clock-cells':
    const: 1

  reset-gpios:
    description: >
      GPIO descriptor connected to the #RESET input pin

  vdd-supply:
    description: A regulator node for Vdd

  clock-output-names:
    description: Name of output clocks, as defined in common clock bindings
    items:
      - const: mclkout
      - const: clkout
      - const: clkout1
      - const: clkout2

required:
  - compatible
  - reg
  - clocks
  - clock-names
  - '#clock-cells'

additionalProperties: false

examples:
  - |
    #include <dt-bindings/gpio/gpio.h>

    i2c {
        #address-cells = <1>;
        #size-cells = <0>;

        clock-controller@63 {
            compatible = "maxim,max9485";
            reg = <0x63>;
            #clock-cells = <1>;
            clock-names = "xclk";
            clocks = <&xo_27mhz>;
            reset-gpios = <&gpio 1 GPIO_ACTIVE_HIGH>;
            vdd-supply = <&reg_3v3>;
        };
    };