CONFIG_PINCTRL_ST (not configurable)

modulename: pinctrl-st.ko

configname: CONFIG_PINCTRL_ST

Linux Kernel Configuration
└─>Device Drivers
└─>Pin controllers
└─>PINCTRL_ST
In linux kernel since version 3.11 (release Date: 2013-09-02)  
source code:
drivers/pinctrl/pinctrl-st.c