1*12b591bcSChunfeng Yun# SPDX-License-Identifier: GPL-2.0 2*12b591bcSChunfeng Yun 3*12b591bcSChunfeng Yunconfig USB_COMMON 4*12b591bcSChunfeng Yun tristate 5*12b591bcSChunfeng Yun 6*12b591bcSChunfeng Yun 7*12b591bcSChunfeng Yunconfig USB_LED_TRIG 8*12b591bcSChunfeng Yun bool "USB LED Triggers" 9*12b591bcSChunfeng Yun depends on LEDS_CLASS && LEDS_TRIGGERS 10*12b591bcSChunfeng Yun select USB_COMMON 11*12b591bcSChunfeng Yun help 12*12b591bcSChunfeng Yun This option adds LED triggers for USB host and/or gadget activity. 13*12b591bcSChunfeng Yun 14*12b591bcSChunfeng Yun Say Y here if you are working on a system with led-class supported 15*12b591bcSChunfeng Yun LEDs and you want to use them as activity indicators for USB host or 16*12b591bcSChunfeng Yun gadget. 17*12b591bcSChunfeng Yun 18*12b591bcSChunfeng Yunconfig USB_ULPI_BUS 19*12b591bcSChunfeng Yun tristate "USB ULPI PHY interface support" 20*12b591bcSChunfeng Yun select USB_COMMON 21*12b591bcSChunfeng Yun help 22*12b591bcSChunfeng Yun UTMI+ Low Pin Interface (ULPI) is specification for a commonly used 23*12b591bcSChunfeng Yun USB 2.0 PHY interface. The ULPI specification defines a standard set 24*12b591bcSChunfeng Yun of registers that can be used to detect the vendor and product which 25*12b591bcSChunfeng Yun allows ULPI to be handled as a bus. This module is the driver for that 26*12b591bcSChunfeng Yun bus. 27*12b591bcSChunfeng Yun 28*12b591bcSChunfeng Yun The ULPI interfaces (the buses) are registered by the drivers for USB 29*12b591bcSChunfeng Yun controllers which support ULPI register access and have ULPI PHY 30*12b591bcSChunfeng Yun attached to them. The ULPI PHY drivers themselves are normal PHY 31*12b591bcSChunfeng Yun drivers. 32*12b591bcSChunfeng Yun 33*12b591bcSChunfeng Yun ULPI PHYs provide often functions such as ADP sensing/probing (OTG 34*12b591bcSChunfeng Yun protocol) and USB charger detection. 35*12b591bcSChunfeng Yun 36*12b591bcSChunfeng Yun To compile this driver as a module, choose M here: the module will 37*12b591bcSChunfeng Yun be called ulpi. 38*12b591bcSChunfeng Yun 39