xref: /kernel/linux/linux-6.6/Documentation/devicetree/bindings/phy/qcom,pcie2-phy.yaml

# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/phy/qcom,pcie2-phy.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Qualcomm PCIe2 PHY controller

maintainers:
  - Vinod Koul <vkoul@kernel.org>

description:
  The Qualcomm PCIe2 PHY is a Synopsys based phy found in a number of Qualcomm
  platforms.

properties:
  compatible:
    items:
      - const: qcom,qcs404-pcie2-phy
      - const: qcom,pcie2-phy

  reg:
    items:
      - description: PHY register set

  clocks:
    items:
      - description: a clock-specifier pair for the "pipe" clock

  clock-output-names:
    maxItems: 1

  "#clock-cells":
    const: 0

  "#phy-cells":
    const: 0

  vdda-vp-supply:
    description: low voltage regulator

  vdda-vph-supply:
    description: high voltage regulator

  resets:
    maxItems: 2

  reset-names:
    items:
      - const: phy
      - const: pipe

required:
  - compatible
  - reg
  - clocks
  - clock-output-names
  - "#clock-cells"
  - "#phy-cells"
  - vdda-vp-supply
  - vdda-vph-supply
  - resets
  - reset-names

additionalProperties: false

examples:
  - |
    #include <dt-bindings/clock/qcom,gcc-qcs404.h>
    phy@7786000 {
      compatible = "qcom,qcs404-pcie2-phy", "qcom,pcie2-phy";
      reg = <0x07786000 0xb8>;

      clocks = <&gcc GCC_PCIE_0_PIPE_CLK>;
      resets = <&gcc GCC_PCIEPHY_0_PHY_BCR>,
               <&gcc GCC_PCIE_0_PIPE_ARES>;
      reset-names = "phy", "pipe";

      vdda-vp-supply = <&vreg_l3_1p05>;
      vdda-vph-supply = <&vreg_l5_1p8>;

      clock-output-names = "pcie_0_pipe_clk";
      #clock-cells = <0>;
      #phy-cells = <0>;
    };
...