dt-bindings: clock: Convert i.MX8MQ to json-schema

* Clock bindings for NXP i.MX8M Quad

Required properties:

- compatible: Should be "fsl,imx8mq-ccm"

- reg: Address and length of the register set

- #clock-cells: Should be <1>

- clocks: list of clock specifiers, must contain an entry for each required

          entry in clock-names

- clock-names: should include the following entries:

    - "ckil"

    - "osc_25m"

    - "osc_27m"

    - "clk_ext1"

    - "clk_ext2"

    - "clk_ext3"

    - "clk_ext4"

The clock consumer should specify the desired clock by having the clock

ID in its "clocks" phandle cell.  See include/dt-bindings/clock/imx8mq-clock.h

for the full list of i.MX8M Quad clock IDs.

# SPDX-License-Identifier: GPL-2.0

%YAML 1.2

---

$id: http://devicetree.org/schemas/bindings/clock/imx8mq-clock.yaml#

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

title: NXP i.MX8M Quad Clock Control Module Binding

maintainers:

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

description: |

  NXP i.MX8M Quad clock control module is an integrated clock controller, which

  generates and supplies to all modules.

properties:

  compatible:

    const: fsl,imx8mq-ccm

  reg:

    maxItems: 1

  clocks:

    items:

      - description: 32k osc

      - description: 25m osc

      - description: 27m osc

      - description: ext1 clock input

      - description: ext2 clock input

      - description: ext3 clock input

      - description: ext4 clock input

  clock-names:

    items:

      - const: ckil

      - const: osc_25m

      - const: osc_27m

      - 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/imx8mq-clock.h

      for the full list of i.MX8M Quad clock IDs.

required:

  - compatible

  - reg

  - clocks

  - clock-names

  - '#clock-cells'

examples:

  # Clock Control Module node:

  - |

    clk: clock-controller@30380000 {

        compatible = "fsl,imx8mq-ccm";

        reg = <0x30380000 0x10000>;

        #clock-cells = <1>;

        clocks = <&ckil>, <&osc_25m>, <&osc_27m>,

                 <&clk_ext1>, <&clk_ext2>,

                 <&clk_ext3>, <&clk_ext4>;

        clock-names = "ckil", "osc_25m", "osc_27m",

                      "clk_ext1", "clk_ext2",

                      "clk_ext3", "clk_ext4";

    };

...