dt-bindings: nvmem: Add bindings doc for Sunplus OCOTP driver

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

# Copyright (C) Sunplus Co., Ltd. 2021

%YAML 1.2

---

$id: http://devicetree.org/schemas/nvmem/sunplus,sp7021-ocotp.yaml#

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

title: On-Chip OTP Memory for Sunplus SP7021

maintainers:

  - Vincent Shih <vincent.sunplus@gmail.com>

allOf:

  - $ref: "nvmem.yaml#"

properties:

  compatible:

    const: sunplus,sp7021-ocotp

  reg:

    maxItems: 2

  reg-names:

    items:

      - const: hb_gpio

      - const: otprx

  clocks:

    maxItems: 1

  "#address-cells":

    const: 1

  "#size-cells":

    const: 1

  thermal-calibration:

    type: object

    description: thermal calibration values

  disconnect-voltage:

    type: object

    description: disconnect voltages of usb2 port 0 and port 1

  mac-address0:

    type: object

    description: MAC address of ethernet port 0

  mac-address1:

    type: object

    description: MAC address of ethernet port 1

required:

  - compatible

  - reg

  - reg-names

  - clocks

unevaluatedProperties: false

examples:

  - |

    #include <dt-bindings/clock/sp-sp7021.h>

    otp: otp@9c00af00 {

        compatible = "sunplus,sp7021-ocotp";

        reg = <0x9c00af00 0x34>, <0x9c00af80 0x58>;

        reg-names = "hb_gpio", "otprx";

        clocks = <&clks OTPRX>;

        #address-cells = <1>;

        #size-cells = <1>;

        therm_calib: thermal-calibration@14 {

          reg = <0x14 0x3>;

        };

        disc_vol: disconnect-voltage@18 {

          reg = <0x18 0x2>;

        };

        mac_addr0: mac-address0@34 {

          reg = <0x34 0x6>;

        };

        mac_addr1: mac-address1@3a {

          reg = <0x3a 0x6>;

        };

    };

...

SUNPLUS OCOTP DRIVER

M:	Vincent Shih <vincent.sunplus@gmail.com>

S:	Maintained

F:	Documentation/devicetree/bindings/nvmem/sunplus,sp7021-ocotp.yaml

F:	drivers/nvmem/sunplus-ocotp.c

SUPERH