Renesas R-Car and RZ/G GPIO support

modulename: gpio-rcar.ko

configname: CONFIG_GPIO_RCAR

Linux Kernel Configuration
└─>Device Drivers
└─>GPIO Support
└─>Memory mapped GPIO drivers
└─>Renesas R-Car and RZ/G GPIO support
In linux kernel since version 3.1 (release Date: 2011-10-24)  
Say yes here to support GPIO on Renesas R-Car or RZ/G SoCs.

source code: