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diff --git a/dts/Bindings/phy/phy-rockchip-inno-usb2.yaml b/dts/Bindings/phy/phy-rockchip-inno-usb2.yaml
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+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/phy-rockchip-inno-usb2.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip USB2.0 phy with inno IP block
+
+maintainers:
+  - Heiko Stuebner <heiko@sntech.de>
+
+properties:
+  compatible:
+    enum:
+      - rockchip,px30-usb2phy
+      - rockchip,rk3228-usb2phy
+      - rockchip,rk3328-usb2phy
+      - rockchip,rk3366-usb2phy
+      - rockchip,rk3399-usb2phy
+      - rockchip,rv1108-usb2phy
+
+  reg:
+    maxItems: 1
+
+  clock-output-names:
+    description:
+      The usb 480m output clock name.
+
+  "#clock-cells":
+    const: 0
+
+  "#phy-cells":
+    const: 0
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    const: phyclk
+
+  assigned-clocks:
+    description:
+      Phandle of the usb 480m clock.
+
+  assigned-clock-parents:
+    description:
+      Parent of the usb 480m clock.
+      Select between usb-phy output 480m and xin24m.
+      Refer to clk/clock-bindings.txt for generic clock consumer properties.
+
+  extcon:
+    description:
+      Phandle to the extcon device providing the cable state for the otg phy.
+
+  rockchip,usbgrf:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      Phandle to the syscon managing the 'usb general register files'.
+      When set the driver will request its phandle as one companion-grf
+      for some special SoCs (e.g rv1108).
+
+  host-port:
+    type: object
+    additionalProperties: false
+
+    properties:
+      "#phy-cells":
+        const: 0
+
+      interrupts:
+        description: host linestate interrupt
+
+      interrupt-names:
+        const: linestate
+
+      phy-supply:
+        description:
+          Phandle to a regulator that provides power to VBUS.
+          See ./phy-bindings.txt for details.
+
+    required:
+      - "#phy-cells"
+      - interrupts
+      - interrupt-names
+
+  otg-port:
+    type: object
+    additionalProperties: false
+
+    properties:
+      "#phy-cells":
+        const: 0
+
+      interrupts:
+        minItems: 1
+        maxItems: 3
+
+      interrupt-names:
+        oneOf:
+          - const: linestate
+          - const: otg-mux
+          - items:
+            - const: otg-bvalid
+            - const: otg-id
+            - const: linestate
+
+      phy-supply:
+        description:
+          Phandle to a regulator that provides power to VBUS.
+          See ./phy-bindings.txt for details.
+
+    required:
+      - "#phy-cells"
+      - interrupts
+      - interrupt-names
+
+required:
+  - compatible
+  - reg
+  - clock-output-names
+  - "#clock-cells"
+  - "#phy-cells"
+  - host-port
+  - otg-port
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/rk3399-cru.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+    u2phy0: usb2-phy@e450 {
+      compatible = "rockchip,rk3399-usb2phy";
+      reg = <0xe450 0x10>;
+      clocks = <&cru SCLK_USB2PHY0_REF>;
+      clock-names = "phyclk";
+      clock-output-names = "clk_usbphy0_480m";
+      #clock-cells = <0>;
+      #phy-cells = <0>;
+
+      u2phy0_host: host-port {
+        #phy-cells = <0>;
+        interrupts = <GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH 0>;
+        interrupt-names = "linestate";
+      };
+
+      u2phy0_otg: otg-port {
+        #phy-cells = <0>;
+        interrupts = <GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH 0>,
+                     <GIC_SPI 104 IRQ_TYPE_LEVEL_HIGH 0>,
+                     <GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH 0>;
+        interrupt-names = "otg-bvalid", "otg-id", "linestate";
+      };
+    };