CONFIG_PINCTRL_MTK_COMMON (not configurable)

modulename: pinctrl-mtk-common.ko

configname: CONFIG_PINCTRL_MTK_COMMON

Linux Kernel Configuration
└─>Device Drivers
└─>Pin controllers
└─>Device Tree and Open Firmware support
└─>PINCTRL_MTK_COMMON
In linux kernel since version 4.1 (release Date: 2015-06-21)  
source code: