comment "ULPI drivers" choice prompt "ULPI Viewport type" optional default n help Select ULPI viewport (SoC-side interface to ULPI) implementation appropriate for the device if you want to communicate with UTMI (USB PHY) via ULPI interface. config USB_ULPI_VIEWPORT bool "Generic ULPI Viewport" help Support generic ULPI Viewport implementation that is used on some Tegra and Snapdragon devices. config USB_ULPI_VIEWPORT_OMAP bool "OMAP ULPI Viewport" help Support ULPI Viewport implementation that is used on OMAP devices. endchoice config USB_ULPI bool "ULPI support" depends on (USB_ULPI_VIEWPORT || USB_ULPI_VIEWPORT_OMAP) help Select to commnicate with USB PHY via ULPI interface. ULPI is wrapper on UTMI+ core that is used as PHY Transreceiver for USB controllers. This driver uses ULPI viewports that are specific for each SoC.