Rockchip gpio and pinctrl driver

modulename: pinctrl-rockchip.ko

configname: CONFIG_PINCTRL_ROCKCHIP

Linux Kernel Configuration
└─>Device Drivers
└─>Pin controllers
└─>Device Tree and Open Firmware support
└─>Rockchip gpio and pinctrl driver
In linux kernel since version 3.10 (release Date: 2013-06-30)  
This support pinctrl and GPIO driver for Rockchip SoCs.

source code: