dt-bindings: power: reset: convert nvmem-reboot-mode bindings to YAML

NVMEM reboot mode driver

This driver gets reboot mode magic value from reboot-mode driver

and stores it in a NVMEM cell named "reboot-mode". Then the bootloader

can read it and take different action according to the magic

value stored.

Required properties:

- compatible: should be "nvmem-reboot-mode".

- nvmem-cells: A phandle to the reboot mode provided by a nvmem device.

- nvmem-cell-names: Should be "reboot-mode".

The rest of the properties should follow the generic reboot-mode description

found in reboot-mode.txt

Example:

	reboot-mode {

		compatible = "nvmem-reboot-mode";

		nvmem-cells = <&reboot_mode>;

		nvmem-cell-names = "reboot-mode";

		mode-normal     = <0xAAAA5501>;

		mode-bootloader = <0xBBBB5500>;

		mode-recovery   = <0xCCCC5502>;

		mode-test       = <0xDDDD5503>;

	};

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/power/reset/nvmem-reboot-mode.yaml#

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

title: Generic NVMEM reboot mode

maintainers:

  - Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

description:

  This driver gets the reboot mode magic value from the reboot-mode driver

  and stores it in the NVMEM cell named "reboot-mode". The bootloader can

  then read it and take different action according to the value.

properties:

  compatible:

    const: nvmem-reboot-mode

  nvmem-cells:

    description:

      A phandle pointing to the nvmem-cells node where the vendor-specific

      magic value representing the reboot mode is stored.

    maxItems: 1

  nvmem-cell-names:

    items:

      - const: reboot-mode

patternProperties:

  "^mode-.+":

    $ref: /schemas/types.yaml#/definitions/uint32

    description: Vendor-specific mode value written to the mode register

required:

  - compatible

  - nvmem-cells

  - nvmem-cell-names

additionalProperties: false

examples:

  - |

    reboot-mode {

        compatible = "nvmem-reboot-mode";

        nvmem-cells = <&reboot_reason>;

        nvmem-cell-names = "reboot-mode";

        mode-recovery = <0x01>;

        mode-bootloader = <0x02>;

    };

...