musb: adi: Adding adsp musb glue layer

Adding glue layer for adsp platforms sc57x/sc58x.

This is enables support for the following:

* usbboot: Mount and boot into file systems contained on USB devices by
switching OTG to host mode.

* usb gadget audio: Utilize linux's USB gadget for streaming audio from
another device by switching OTG to device mode.

Signed-off-by: Utsav Agarwal <utsav.agarwal@analog.com>

Author: UtsavAgarwalADI

drivers/usb/musb/Kconfig

@@ -104,6 +104,12 @@ config USB_MUSB_JZ4740
 	depends on USB_MUSB_GADGET
 	select USB_ROLE_SWITCH
 
+config USB_MUSB_ADI
+	tristate "ADI"
+	depends on ARCH_SC59X || ARCH_SC58X || ARCH_SC57X
+	help
+	  Enable usb on ADI platforms.
+
 config USB_MUSB_MEDIATEK
 	tristate "MediaTek platforms"
 	depends on ARCH_MEDIATEK || COMPILE_TEST
@@ -145,7 +151,7 @@ config USB_UX500_DMA
 
 config USB_INVENTRA_DMA
 	bool 'Inventra'
-	depends on USB_MUSB_OMAP2PLUS || USB_MUSB_MEDIATEK || USB_MUSB_JZ4740 || USB_MUSB_POLARFIRE_SOC
+	depends on USB_MUSB_OMAP2PLUS || USB_MUSB_MEDIATEK || USB_MUSB_JZ4740 || USB_MUSB_POLARFIRE_SOC || USB_MUSB_ADI
 	help
 	  Enable DMA transfers using Mentor's engine.
 

drivers/usb/musb/Makefile

@@ -23,6 +23,7 @@ obj-$(CONFIG_USB_MUSB_UX500)			+= ux500.o
 obj-$(CONFIG_USB_MUSB_JZ4740)			+= jz4740.o
 obj-$(CONFIG_USB_MUSB_SUNXI)			+= sunxi.o
 obj-$(CONFIG_USB_MUSB_MEDIATEK)      		+= mediatek.o
+obj-$(CONFIG_USB_MUSB_ADI)			+= adi.o
 obj-$(CONFIG_USB_MUSB_POLARFIRE_SOC)		+= mpfs.o
 
 # the kconfig must guarantee that only one of the