linux/Documentation/devicetree/bindings/clock/imx8mn-clock.yaml

# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/bindings/clock/imx8mn-clock.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: NXP i.MX8M Nano Clock Control Module Binding

maintainers:
  - Anson Huang <Anson.Huang@nxp.com>

description: |
  NXP i.MX8M Nano clock control module is an integrated clock controller, which
  generates and supplies to all modules.

properties:
  compatible:
    const: fsl,imx8mn-ccm

  reg:
    maxItems: 1

  clocks:
    items:
      - description: 32k osc
      - description: 24m osc
      - description: ext1 clock input
      - description: ext2 clock input
      - description: ext3 clock input
      - description: ext4 clock input

  clock-names:
    items:
      - const: osc_32k
      - const: osc_24m
      - const: clk_ext1
      - const: clk_ext2
      - const: clk_ext3
      - const: clk_ext4

  '#clock-cells':
    const: 1
    description: |
      The clock consumer should specify the desired clock by having the clock
      ID in its "clocks" phandle cell. See include/dt-bindings/clock/imx8mn-clock.h
      for the full list of i.MX8M Nano clock IDs.

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

examples:
  # Clock Control Module node:
  - |
    clk: clock-controller@30380000 {
        compatible = "fsl,imx8mn-ccm";
        reg = <0x0 0x30380000 0x0 0x10000>;
        #clock-cells = <1>;
        clocks = <&osc_32k>, <&osc_24m>, <&clk_ext1>,
                 <&clk_ext2>, <&clk_ext3>, <&clk_ext4>;
        clock-names = "osc_32k", "osc_24m", "clk_ext1",
                      "clk_ext2", "clk_ext3", "clk_ext4";
    };

  # Required external clocks for Clock Control Module node:
  - |
    osc_32k: clock-osc-32k {
        compatible = "fixed-clock";
        #clock-cells = <0>;
        clock-frequency = <32768>;
        clock-output-names = "osc_32k";
    };

    osc_24m: clock-osc-24m {
        compatible = "fixed-clock";
        #clock-cells = <0>;
        clock-frequency = <24000000>;
        clock-output-names = "osc_24m";
    };

    clk_ext1: clock-ext1 {
        compatible = "fixed-clock";
        #clock-cells = <0>;
        clock-frequency = <133000000>;
        clock-output-names = "clk_ext1";
    };

    clk_ext2: clock-ext2 {
        compatible = "fixed-clock";
        #clock-cells = <0>;
        clock-frequency = <133000000>;
        clock-output-names = "clk_ext2";
    };

    clk_ext3: clock-ext3 {
        compatible = "fixed-clock";
        #clock-cells = <0>;
        clock-frequency = <133000000>;
        clock-output-names = "clk_ext3";
    };

    clk_ext4: clock-ext4 {
        compatible = "fixed-clock";
        #clock-cells = <0>;
        clock-frequency= <133000000>;
        clock-output-names = "clk_ext4";
    };

...