IMX1 pinctrl driver

modulename: pinctrl-imx1.ko

configname: CONFIG_PINCTRL_IMX1

Linux Kernel Configuration
└─>Device Drivers
└─>Pin controllers
└─>IMX1 pinctrl driver
In linux kernel since version 3.17 (release Date: 2014-10-05)  
Say Y here to enable the imx1 pinctrl driver

source code: