CONFIG_PINCTRL (not configurable)

modulename: core.ko

and/or

devicetree.ko

configname: CONFIG_PINCTRL

Linux Kernel Configuration
└─>Device Drivers
└─>PINCTRL
In linux kernel since version 3.1 (release Date: 2011-10-24)  
source code:
drivers/pinctrl/core.c
is selected by
CONFIG_PINCTRL_SINGLE