dt-bindings: phy-qcom-ipq4019-usb: add binding document

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

%YAML 1.2

---

$id: "http://devicetree.org/schemas/phy/qcom-usb-ipq4019-phy.yaml#"

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

title: Qualcom IPQ40xx Dakota HS/SS USB PHY

maintainers:

  - Robert Marko <robert.marko@sartura.hr>

properties:

  compatible:

    enum:

      - qcom,usb-ss-ipq4019-phy

      - qcom,usb-hs-ipq4019-phy

  reg:

    maxItems: 1

  resets:

    maxItems: 2

  reset-names:

    items:

      - const: por_rst

      - const: srif_rst

  "#phy-cells":

    const: 0

required:

  - compatible

  - reg

  - resets

  - reset-names

  - "#phy-cells"

examples:

  - |

    #include <dt-bindings/clock/qcom,gcc-ipq4019.h>

    hsphy@a8000 {

      #phy-cells = <0>;

      compatible = "qcom,usb-hs-ipq4019-phy";

      reg = <0xa8000 0x40>;

      resets = <&gcc USB2_HSPHY_POR_ARES>,

               <&gcc USB2_HSPHY_S_ARES>;

      reset-names = "por_rst", "srif_rst";

    };