NVIDIA Tegra XUSB pad controller driver

modulename: phy-tegra-xusb.ko

configname: CONFIG_PHY_TEGRA_XUSB

Linux Kernel Configuration
└─>Device Drivers
└─>PHY Subsystem
└─>NVIDIA Tegra XUSB pad controller driver
In linux kernel since version 3.10 (release Date: 2013-06-30)  
Choose this option if you have an NVIDIA Tegra SoC.

To compile this driver as a module, choose M here: the module will
be called phy-tegra-xusb.

source code: