linux/Documentation/devicetree/bindings/usb/lpc32xx-udc.txt
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   1* NXP LPC32xx SoC USB Device Controller (UDC)
   2
   3Required properties:
   4- compatible: Must be "nxp,lpc3220-udc"
   5- reg: Physical base address of the controller and length of memory mapped
   6  region.
   7- interrupts: The USB interrupts:
   8              * USB Device Low Priority Interrupt
   9              * USB Device High Priority Interrupt
  10              * USB Device DMA Interrupt
  11              * External USB Transceiver Interrupt (OTG ATX)
  12- transceiver: phandle of the associated ISP1301 device - this is necessary for
  13               the UDC controller for connecting to the USB physical layer
  14
  15Example:
  16
  17        isp1301: usb-transceiver@2c {
  18                compatible = "nxp,isp1301";
  19                reg = <0x2c>;
  20        };
  21
  22        usbd@31020000 {
  23                compatible = "nxp,lpc3220-udc";
  24                reg = <0x31020000 0x300>;
  25                interrupt-parent = <&mic>;
  26                interrupts = <0x3d 0>, <0x3e 0>, <0x3c 0>, <0x3a 0>;
  27                transceiver = <&isp1301>;
  28        };
  29