VIA VT8500 pin controller driver

modulename: pinctrl-vt8500.ko

configname: CONFIG_PINCTRL_VT8500

Linux Kernel Configuration
└─>Device Drivers
└─>Pin controllers
└─>VIA VT8500 pin controller driver
In linux kernel since version 3.1 (release Date: 2011-10-24)  
Say yes here to support the gpio/pin control module on
VIA VT8500 SoCs.

source code:
drivers/pinctrl/vt8500/pinctrl-vt8500.c