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diff --git a/Documentation/devicetree/bindings/usb/lpc32xx-udc.txt b/Documentation/devicetree/bindings/usb/lpc32xx-udc.txt
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+* NXP LPC32xx SoC USB Device Controller (UDC)
+
+Required properties:
+- compatible: Must be "nxp,lpc3220-udc"
+- reg: Physical base address of the controller and length of memory mapped
+  region.
+- interrupts: The USB interrupts:
+              * USB Device Low Priority Interrupt
+              * USB Device High Priority Interrupt
+              * USB Device DMA Interrupt
+              * External USB Transceiver Interrupt (OTG ATX)
+- transceiver: phandle of the associated ISP1301 device - this is necessary for
+               the UDC controller for connecting to the USB physical layer
+
+Example:
+
+        isp1301: usb-transceiver@2c {
+                compatible = "nxp,isp1301";
+                reg = <0x2c>;
+        };
+
+        usbd@31020000 {
+                compatible = "nxp,lpc3220-udc";
+                reg = <0x31020000 0x300>;
+                interrupt-parent = <&mic>;
+                interrupts = <0x3d 0>, <0x3e 0>, <0x3c 0>, <0x3a 0>;
+                transceiver = <&isp1301>;
+        };