dt-bindings: phy: exynos: add the samsung,exynos-pcie-phy binding

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/phy/samsung,exynos-pcie-phy.yaml#

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

title: Samsung SoC series PCIe PHY Device Tree Bindings

maintainers:

  - Marek Szyprowski <m.szyprowski@samsung.com>

  - Jaehoon Chung <jh80.chung@samsung.com>

properties:

  "#phy-cells":

    const: 0

  compatible:

    const: samsung,exynos5433-pcie-phy

  reg:

    maxItems: 1

  samsung,pmu-syscon:

    $ref: '/schemas/types.yaml#/definitions/phandle'

    description: phandle for PMU system controller interface, used to

                 control PMU registers bits for PCIe PHY

  samsung,fsys-sysreg:

    $ref: '/schemas/types.yaml#/definitions/phandle'

    description: phandle for FSYS sysreg interface, used to control

                 sysreg registers bits for PCIe PHY

required:

  - "#phy-cells"

  - compatible

  - reg

  - samsung,pmu-syscon

  - samsung,fsys-sysreg

additionalProperties: false

examples:

  - |

    pcie_phy: pcie-phy@15680000 {

        compatible = "samsung,exynos5433-pcie-phy";

        reg = <0x15680000 0x1000>;

        samsung,pmu-syscon = <&pmu_system_controller>;

        samsung,fsys-sysreg = <&syscon_fsys>;

        #phy-cells = <0>;

    };

...