linux/Documentation/devicetree/bindings/arm/samsung/exynos-chipid.yaml at 2a749afa59c285f59ff5b069f2cc474416769ea0 · hardkernel/linux · GitHub

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# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/arm/samsung/exynos-chipid.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Samsung Exynos SoC series Chipid driver

maintainers:
  - Krzysztof Kozlowski <krzk@kernel.org>

# Custom select to avoid matching all nodes with 'syscon'
select:
  properties:
    compatible:
      contains:
        const: samsung,exynos4210-chipid
  required:
    - compatible

properties:
  compatible:
    allOf:
      - items:
        - const: samsung,exynos4210-chipid
        - const: syscon

  reg:
    maxItems: 1

  samsung,asv-bin:
    description:
      Adaptive Supply Voltage bin selection. This can be used
      to determine the ASV bin of an SoC if respective information
      is missing in the CHIPID registers or in the OTP memory.
    allOf:
      - $ref: /schemas/types.yaml#/definitions/uint32
      - enum: [ 0, 1, 2, 3 ]

required:
  - compatible
  - reg

examples:
  - |
    chipid@10000000 {
      compatible = "samsung,exynos4210-chipid", "syscon";
      reg = <0x10000000 0x100>;
      samsung,asv-bin = <2>;
    };