Documentation/devicetree/bindings/phy/socionext,uniphier-pcie-phy.yaml

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/phy/socionext,uniphier-pcie-phy.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Socionext UniPhier PCIe PHY

description: |
  This describes the devicetree bindings for PHY interface built into
  PCIe controller implemented on Socionext UniPhier SoCs.

maintainers:
  - Kunihiko Hayashi <hayashi.kunihiko@socionext.com>

properties:
  compatible:
    enum:
      - socionext,uniphier-pro5-pcie-phy
      - socionext,uniphier-ld20-pcie-phy
      - socionext,uniphier-pxs3-pcie-phy
      - socionext,uniphier-nx1-pcie-phy

  reg:
    maxItems: 1

  "#phy-cells":
    const: 0

  clocks:
    minItems: 1
    maxItems: 2

  clock-names:
    minItems: 1
    maxItems: 2

  resets:
    minItems: 1
    maxItems: 2

  reset-names:
    minItems: 1
    maxItems: 2

  socionext,syscon:
    $ref: /schemas/types.yaml#/definitions/phandle
    description: A phandle to system control to set configurations for phy

allOf:
  - if:
      properties:
        compatible:
          contains:
            const: socionext,uniphier-pro5-pcie-phy
    then:
      properties:
        clocks:
          minItems: 2
          maxItems: 2
        clock-names:
          items:
            - const: gio
            - const: link
        resets:
          minItems: 2
          maxItems: 2
        reset-names:
          items:
            - const: gio
            - const: link
    else:
      properties:
        clocks:
          maxItems: 1
        clock-names:
          const: link
        resets:
          maxItems: 1
        reset-names:
          const: link

required:
  - compatible
  - reg
  - "#phy-cells"
  - clocks
  - clock-names
  - resets
  - reset-names

additionalProperties: false

examples:
  - |
    pcie_phy: phy@66038000 {
        compatible = "socionext,uniphier-ld20-pcie-phy";
        reg = <0x66038000 0x4000>;
        #phy-cells = <0>;
        clock-names = "link";
        clocks = <&sys_clk 24>;
        reset-names = "link";
        resets = <&sys_rst 24>;
        socionext,syscon = <&soc_glue>;
    };