Renesas RZ/N1 pinctrl driver

modulename: pinctrl-rzn1.ko

configname: CONFIG_PINCTRL_RZN1

Linux Kernel Configuration
└─>Device Drivers
└─>Pin controllers
└─>Device Tree and Open Firmware support
└─>Renesas RZ/N1 pinctrl driver
In linux kernel since version 3.10 (release Date: 2013-06-30)  
This selects pinctrl driver for Renesas RZ/N1 devices.

source code: