IMX6SX pinctrl driver

modulename: pinctrl-imx6sx.ko

configname: CONFIG_PINCTRL_IMX6SX

Linux Kernel Configuration
└─>Device Drivers
└─>Pin controllers
└─>IMX6SX pinctrl driver
In linux kernel since version 3.16 (release Date: 2014-08-03)  
Say Y here to enable the imx6sx pinctrl driver

source code: