Support for the Allwinner A23 and A33 R-PIO

modulename: pinctrl-sun8i-a23-r.ko

configname: CONFIG_PINCTRL_SUN8I_A23_R

Linux Kernel Configuration
└─>Device Drivers
└─>Pin controllers
└─>Support for the Allwinner A23 and A33 R-PIO
In linux kernel since version 3.10 (release Date: 2013-06-30)  
source code:
drivers/pinctrl/sunxi/pinctrl-sun8i-a23-r.c