diff --git a/target/linux/rockchip/files/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb3.yaml b/target/linux/rockchip/files/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb3.yaml
deleted file mode 100644
index f4f2862517..0000000000
--- a/target/linux/rockchip/files/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb3.yaml
+++ /dev/null
@@ -1,157 +0,0 @@
-# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
-%YAML 1.2
----
-$id: "http://devicetree.org/schemas/phy/phy-rockchip-inno-usb3.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
-
-title: ROCKCHIP USB 3.0 PHY WITH INNO IP BLOCK
-
-maintainers:
-
-properties:
-  compatible:
-    enum:
-      - rockchip,rk3328-u3phy
-
-  reg:
-    - description: the base address of the USB 3.0 PHY
-
-  interrupts:
-    maxItems: 1
-
-  interrupt-names:
-    items:
-      - const: linestate
-        description: host/otg linestate interrupt
-
-  clocks:
-    maxItems: 2
-
-  clock-names:
-    items:
-      - const: u3phy-otg
-        description: USB 3.0 PHY UTMI
-      - const: u3phy-pipe
-        description: USB 3.0 PHY Pipe
-
-  resets:
-    maxItems: 6
-
-  reset-names:
-    items:
-      - const: u3phy-u2-por
-      description: USB 2.0 logic of USB 3.0 PHY
-      - const: u3phy-u3-por
-      description: USB 3.0 logic of USB 3.0 PHY
-      - const: u3phy-pipe-mac
-      description: USB 3.0 PHY pipe MAC
-      - const: u3phy-utmi-mac
-      description: USB 3.0 PHY utmi MAC
-      - const: u3phy-utmi-apb
-      description: USB 3.0 PHY utmi apb
-      - const: u3phy-pipe-apb
-      description: USB 3.0 PHY pipe apb
-
-  "#phy-cells":
-    const: 1
-
-  rockchip,u3phygrf:
-    $ref: /schemas/types.yaml#/definitions/phandle-array
-    type: array
-    - description: phandle to the syscon managing the
-                   "USB 3.0 PHY general register files".
-
-  vbus-drv-gpios:
-    $ref: /schemas/types.yaml#/definitions/phandle-array
-    type: array
-    - description: phandle for gpio vbus supply
-
-required:
-  - compatible
-  - reg
-  - interrupts
-  - interrupt-names
-  - clocks
-  - clock-names
-  - resets
-  - reset-names
-  - "#phy-cells"
-  - rockchip,u3phygrf
-
-patternProperties:
-  "^u3phy_utmi@[0-9a-f]+$":
-    type: object
-
-    properties:
-      - description: USB 2.0 utmi phy.
-
-      rockchip,odt-val-tuning:
-        type: boolean
-        - description: specify 45ohm ODT tuning value.
-
-      "phy-cells":
-        const: 0
-
-    required:
-      - reg
-      - "#phy-cells"
-
-patternProperties:
-  "^u3phy_pipe@[0-9a-f]+$":
-    type: object
-
-    properties:
-      - description: USB 3.0 pipe phy.
-
-      rockchip,refclk-25m-quirk :
-
-        - description: phy reference clock changed to 25m quirk.
-
-      "phy-cells":
-        const: 0
-
-    required:
-      - reg
-      - "#phy-cells"
-
-examples:
-
-usb3phy_grf: syscon@ff460000 {
-	compatible = "rockchip,usb3phy-grf", "syscon";
-	reg = <0x0 0xff460000 0x0 0x1000>;
-};
-
-...
-
-u3phy: usb3-phy@ff470000 {
-	compatible = "rockchip,rk3328-u3phy";
-	reg = <0x0 0xff470000 0x0 0x0>;
-	rockchip,u3phygrf = <&usb3phy_grf>;
-	interrupts = <GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>;
-	interrupt-names = "linestate";
-	clocks = <&cru PCLK_USB3PHY_OTG>, <&cru PCLK_USB3PHY_PIPE>;
-	clock-names = "u3phy-otg", "u3phy-pipe";
-	resets = <&cru SRST_USB3PHY_U2>,
-		 <&cru SRST_USB3PHY_U3>,
-		 <&cru SRST_USB3PHY_PIPE>,
-		 <&cru SRST_USB3OTG_UTMI>,
-		 <&cru SRST_USB3PHY_OTG_P>,
-		 <&cru SRST_USB3PHY_PIPE_P>;
-	reset-names = "u3phy-u2-por", "u3phy-u3-por",
-		      "u3phy-pipe-mac", "u3phy-utmi-mac",
-		      "u3phy-utmi-apb", "u3phy-pipe-apb";
-	vbus-drv-gpios = <&gpio0 0 GPIO_ACTIVE_HIGH>;
-	#address-cells = <2>;
-	#size-cells = <2>;
-	ranges;
-
-	u3phy_utmi: utmi@ff470000 {
-		reg = <0x0 0xff470000 0x0 0x8000>;
-		#phy-cells = <0>;
-	};
-
-	u3phy_pipe: pipe@ff478000 {
-		reg = <0x0 0xff478000 0x0 0x8000>;
-		#phy-cells = <0>;
-	};
-};