xref: /linux/Documentation/devicetree/bindings/phy/qcom,ipq5332-uniphy-pcie-phy.yaml (revision ab93e0dd72c37d378dd936f031ffb83ff2bd87ce)

# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/phy/qcom,ipq5332-uniphy-pcie-phy.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Qualcomm UNIPHY PCIe 28LP PHY

maintainers:
  - Nitheesh Sekar <quic_nsekar@quicinc.com>
  - Varadarajan Narayanan <quic_varada@quicinc.com>

description:
  PCIe and USB combo PHY found in Qualcomm IPQ5018 & IPQ5332 SoCs

properties:
  compatible:
    enum:
      - qcom,ipq5018-uniphy-pcie-phy
      - qcom,ipq5332-uniphy-pcie-phy

  reg:
    maxItems: 1

  clocks:
    minItems: 1
    maxItems: 2

  resets:
    minItems: 2
    maxItems: 3

  "#phy-cells":
    const: 0

  "#clock-cells":
    const: 0

  num-lanes:
    $ref: /schemas/types.yaml#/definitions/uint32
    enum: [1, 2]

required:
  - compatible
  - reg
  - clocks
  - resets
  - "#phy-cells"
  - "#clock-cells"
  - num-lanes

additionalProperties: false

allOf:
  - if:
      properties:
        compatible:
          contains:
            enum:
              - qcom,ipq5018-uniphy-pcie-phy
    then:
      properties:
        clocks:
          items:
            - description: pcie pipe clock
        resets:
          items:
            - description: phy reset
            - description: cfg reset

  - if:
      properties:
        compatible:
          contains:
            enum:
              - qcom,ipq5332-uniphy-pcie-phy
    then:
      properties:
        clocks:
          items:
            - description: pcie pipe clock
            - description: pcie ahb clock
        resets:
          items:
            - description: phy reset
            - description: ahb reset
            - description: cfg reset

examples:
  - |
    #include <dt-bindings/clock/qcom,ipq5332-gcc.h>

    pcie0_phy: phy@4b0000 {
        compatible = "qcom,ipq5332-uniphy-pcie-phy";
        reg = <0x004b0000 0x800>;

        clocks = <&gcc GCC_PCIE3X1_0_PIPE_CLK>,
                 <&gcc GCC_PCIE3X1_PHY_AHB_CLK>;

        resets = <&gcc GCC_PCIE3X1_0_PHY_BCR>,
                 <&gcc GCC_PCIE3X1_PHY_AHB_CLK_ARES>,
                 <&gcc GCC_PCIE3X1_0_PHY_PHY_BCR>;

        #clock-cells = <0>;

        #phy-cells = <0>;

        num-lanes = <1>;
    };