dt-bindings: nvmem: Convert i.MX OCOTP to json-schema

Freescale i.MX6 On-Chip OTP Controller (OCOTP) device tree bindings

This binding represents the on-chip eFuse OTP controller found on

i.MX6Q/D, i.MX6DL/S, i.MX6SL, i.MX6SX, i.MX6UL, i.MX6ULL/ULZ, i.MX6SLL,

i.MX7D/S, i.MX7ULP, i.MX8MQ, i.MX8MM, i.MX8MN and i.MX8MP SoCs.

Required properties:

- compatible: should be one of

	"fsl,imx6q-ocotp" (i.MX6Q/D/DL/S),

	"fsl,imx6sl-ocotp" (i.MX6SL), or

	"fsl,imx6sx-ocotp" (i.MX6SX),

	"fsl,imx6ul-ocotp" (i.MX6UL),

	"fsl,imx6ull-ocotp" (i.MX6ULL/ULZ),

	"fsl,imx7d-ocotp" (i.MX7D/S),

	"fsl,imx6sll-ocotp" (i.MX6SLL),

	"fsl,imx7ulp-ocotp" (i.MX7ULP),

	"fsl,imx8mq-ocotp" (i.MX8MQ),

	"fsl,imx8mm-ocotp" (i.MX8MM),

	"fsl,imx8mn-ocotp" (i.MX8MN),

	"fsl,imx8mp-ocotp" (i.MX8MP),

	followed by "syscon".

- #address-cells : Should be 1

- #size-cells : Should be 1

- reg: Should contain the register base and length.

- clocks: Should contain a phandle pointing to the gated peripheral clock.

Optional properties:

- read-only: disable write access

Optional Child nodes:

- Data cells of ocotp:

  Detailed bindings are described in bindings/nvmem/nvmem.txt

Example:

	ocotp: ocotp@21bc000 {

		#address-cells = <1>;

		#size-cells = <1>;

		compatible = "fsl,imx6sx-ocotp", "syscon";

		reg = <0x021bc000 0x4000>;

		clocks = <&clks IMX6SX_CLK_OCOTP>;

		tempmon_calib: calib@38 {

			reg = <0x38 4>;

		};

		tempmon_temp_grade: temp-grade@20 {

			reg = <0x20 4>;

		};

	};

# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/nvmem/imx-ocotp.yaml#

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

title: Freescale i.MX6 On-Chip OTP Controller (OCOTP) device tree bindings

maintainers:

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

description: |

  This binding represents the on-chip eFuse OTP controller found on

  i.MX6Q/D, i.MX6DL/S, i.MX6SL, i.MX6SX, i.MX6UL, i.MX6ULL/ULZ, i.MX6SLL,

  i.MX7D/S, i.MX7ULP, i.MX8MQ, i.MX8MM, i.MX8MN and i.MX8MP SoCs.

allOf:

  - $ref: "nvmem.yaml#"

properties:

  compatible:

    items:

      - enum:

        - fsl,imx6q-ocotp

        - fsl,imx6sl-ocotp

        - fsl,imx6sx-ocotp

        - fsl,imx6ul-ocotp

        - fsl,imx6ull-ocotp

        - fsl,imx7d-ocotp

        - fsl,imx6sll-ocotp

        - fsl,imx7ulp-ocotp

        - fsl,imx8mq-ocotp

        - fsl,imx8mm-ocotp

        - fsl,imx8mn-ocotp

        - fsl,imx8mp-ocotp

      - const: syscon

  reg:

    maxItems: 1

  "#address-cells":

    const: 1

  "#size-cells":

    const: 1

  clocks:

    maxItems: 1

required:

  - "#address-cells"

  - "#size-cells"

  - compatible

  - reg

patternProperties:

  "^.*@[0-9a-f]+$":

    type: object

    properties:

      reg:

        maxItems: 1

        description:

          Offset and size in bytes within the storage device.

    required:

      - reg

    additionalProperties: false

examples:

  - |

    #include <dt-bindings/clock/imx6sx-clock.h>

    ocotp: efuse@21bc000 {

        #address-cells = <1>;

        #size-cells = <1>;

        compatible = "fsl,imx6sx-ocotp", "syscon";

        reg = <0x021bc000 0x4000>;

        clocks = <&clks IMX6SX_CLK_OCOTP>;

        cpu_speed_grade: speed-grade@10 {

            reg = <0x10 4>;

        };

        tempmon_calib: calib@38 {

            reg = <0x38 4>;

        };

        tempmon_temp_grade: temp-grade@20 {

            reg = <0x20 4>;

        };

    };

...