CONFIG_PINCTRL_STM32 (not configurable)

modulename: pinctrl-stm32.ko

configname: CONFIG_PINCTRL_STM32

Linux Kernel Configuration
└─>Device Drivers
└─>Pin controllers
└─>Device Tree and Open Firmware support
└─>PINCTRL_STM32
In linux kernel since version 3.10 (release Date: 2013-06-30)  
source code:
drivers/pinctrl/stm32/pinctrl-stm32.c

depends
CONFIG_OF
CONFIG_PINCTRL
CONFIG_ARCH_STM32 or CONFIG_COMPILE_TEST