dt-bindings: usb: renesas: usb3-peri: convert bindings to json-schema

Renesas Electronics USB3.0 Peripheral driver

Required properties:

  - compatible: Must contain one of the following:

	- "renesas,r8a774a1-usb3-peri"

	- "renesas,r8a774b1-usb3-peri"

	- "renesas,r8a774c0-usb3-peri"

	- "renesas,r8a7795-usb3-peri"

	- "renesas,r8a7796-usb3-peri"

	- "renesas,r8a77965-usb3-peri"

	- "renesas,r8a77990-usb3-peri"

	- "renesas,rcar-gen3-usb3-peri" for a generic R-Car Gen3 or RZ/G2

	  compatible device

    When compatible with the generic version, nodes must list the

    SoC-specific version corresponding to the platform first

    followed by the generic version.

  - reg: Base address and length of the register for the USB3.0 Peripheral

  - interrupts: Interrupt specifier for the USB3.0 Peripheral

  - clocks: clock phandle and specifier pair

Optional properties:

  - phys: phandle + phy specifier pair

  - phy-names: must be "usb"

  - usb-role-switch: support role switch. see usb/generic.txt

Sub-nodes:

- any connector to the data bus of this controller should be modelled using the

  OF graph bindings specified in bindings/graph.txt, if the "usb-role-switch"

  property is used.

Example of R-Car H3 ES1.x:

	usb3_peri0: usb@ee020000 {

		compatible = "renesas,r8a7795-usb3-peri",

			     "renesas,rcar-gen3-usb3-peri";

		reg = <0 0xee020000 0 0x400>;

		interrupts = <GIC_SPI 104 IRQ_TYPE_LEVEL_HIGH>;

		clocks = <&cpg CPG_MOD 328>;

	};

	usb3_peri1: usb@ee060000 {

		compatible = "renesas,r8a7795-usb3-peri",

			     "renesas,rcar-gen3-usb3-peri";

		reg = <0 0xee060000 0 0x400>;

		interrupts = <GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>;

		clocks = <&cpg CPG_MOD 327>;

	};

Example of RZ/G2E:

	usb3_peri0: usb@ee020000 {

		compatible = "renesas,r8a774c0-usb3-peri",

			     "renesas,rcar-gen3-usb3-peri";

		reg = <0 0xee020000 0 0x400>;

		interrupts = <GIC_SPI 104 IRQ_TYPE_LEVEL_HIGH>;

		clocks = <&cpg CPG_MOD 328>;

		companion = <&xhci0>;

		usb-role-switch;

		port {

			usb3_role_switch: endpoint {

				remote-endpoint = <&hd3ss3220_ep>;

			};

		};

	};

# SPDX-License-Identifier: GPL-2.0-only

%YAML 1.2

---

$id: http://devicetree.org/schemas/usb/renesas,usb3-peri.yaml#

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

title: Renesas USB 3.0 Peripheral controller

maintainers:

  - Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>

properties:

  compatible:

    items:

      - enum:

          - renesas,r8a774a1-usb3-peri # RZ/G2M

          - renesas,r8a774b1-usb3-peri # RZ/G2N

          - renesas,r8a774c0-usb3-peri # RZ/G2E

          - renesas,r8a7795-usb3-peri  # R-Car H3

          - renesas,r8a7796-usb3-peri  # R-Car M3-W

          - renesas,r8a77965-usb3-peri # R-Car M3-N

          - renesas,r8a77990-usb3-peri # R-Car E3

      - const: renesas,rcar-gen3-usb3-peri

  reg:

    maxItems: 1

  interrupts:

    maxItems: 1

  clocks:

    maxItems: 1

  phys:

    maxItems: 1

  phy-names:

    const: usb

  power-domains:

    maxItems: 1

  resets:

    maxItems: 1

  usb-role-switch:

    $ref: /schemas/types.yaml#/definitions/flag

    description: Support role switch.

  companion:

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

    description: phandle of a companion.

  port:

    description: |

      any connector to the data bus of this controller should be modelled

      using the OF graph bindings specified, if the "usb-role-switch"

      property is used.

required:

  - compatible

  - interrupts

  - clocks

additionalProperties: false

examples:

  - |

    #include <dt-bindings/clock/r8a774c0-cpg-mssr.h>

    #include <dt-bindings/interrupt-controller/arm-gic.h>

    #include <dt-bindings/power/r8a774c0-sysc.h>

    usb3_peri0: usb@ee020000 {

        compatible = "renesas,r8a774c0-usb3-peri", "renesas,rcar-gen3-usb3-peri";

        reg = <0 0xee020000 0 0x400>;

        interrupts = <GIC_SPI 104 IRQ_TYPE_LEVEL_HIGH>;

        clocks = <&cpg CPG_MOD 328>;

        companion = <&xhci0>;

        usb-role-switch;

        port {

            usb3_role_switch: endpoint {

                remote-endpoint = <&hd3ss3220_ep>;

            };

        };

    };