kernel/drivers/usb/mtu3/Kconfig
.. .. @@ -44,6 +44,7 @@ 44 44 bool "Dual Role mode" 45 45 depends on ((USB=y || USB=USB_MTU3) && (USB_GADGET=y || USB_GADGET=USB_MTU3)) 46 46 depends on (EXTCON=y || EXTCON=USB_MTU3) 47 + select USB_ROLE_SWITCH47 48 help 48 49 This is the default mode of working of MTU3 controller where 49 50 both host and gadget features are enabled.