USB: gadget driver for LPC32xx

* 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>;

	};

	   dynamically linked module called "at91_udc" and force all

	   gadget drivers to also be dynamically linked.

config USB_LPC32XX

	tristate "LPC32XX USB Peripheral Controller"

	depends on ARCH_LPC32XX

	select USB_ISP1301

	help

	   This option selects the USB device controller in the LPC32xx SoC.

	   Say "y" to link the driver statically, or "m" to build a

	   dynamically linked module called "lpc32xx_udc" and force all

	   gadget drivers to also be dynamically linked.

config USB_ATMEL_USBA

	tristate "Atmel USBA"

	select USB_GADGET_DUALSPEED

obj-$(CONFIG_USB_S3C_HSOTG)	+= s3c-hsotg.o

obj-$(CONFIG_USB_S3C_HSUDC)	+= s3c-hsudc.o

obj-$(CONFIG_USB_LANGWELL)	+= langwell_udc.o

obj-$(CONFIG_USB_LPC32XX)	+= lpc32xx_udc.o

obj-$(CONFIG_USB_EG20T)		+= pch_udc.o

obj-$(CONFIG_USB_MV_UDC)	+= mv_udc.o

mv_udc-y			:= mv_udc_core.o

#define gadget_is_goku(g)		(!strcmp("goku_udc", (g)->name))

#define gadget_is_imx(g)		(!strcmp("imx_udc", (g)->name))

#define gadget_is_langwell(g)		(!strcmp("langwell_udc", (g)->name))

#define gadget_is_lpc32xx(g)		(!strcmp("lpc32xx_udc", (g)->name))

#define gadget_is_m66592(g)		(!strcmp("m66592_udc", (g)->name))

#define gadget_is_musbhdrc(g)		(!strcmp("musb-hdrc", (g)->name))

#define gadget_is_net2272(g)		(!strcmp("net2272", (g)->name))

		return 0x31;

	else if (gadget_is_dwc3(gadget))

		return 0x32;

	else if (gadget_is_lpc32xx(gadget))

		return 0x33;

	return -ENOENT;

}