Broadcom BCM2835 GPIO (with PINCONF) driver
modulename: pinctrl-bcm2835.ko
configname: CONFIG_PINCTRL_BCM2835
Linux Kernel Configuration
└─>Device Drivers
└─>Pin controllers
└─>Device Tree and Open Firmware support
└─>Broadcom BCM2835 GPIO (with PINCONF) driver
In linux kernel since version 3.1 (release Date: 2011-10-24)
Say Y here to enable the Broadcom BCM2835 GPIO driver.