CONFIG_PINCTRL_SUN50I_A64 (not configurable)

modulename: pinctrl-sun50i-a64.ko

configname: CONFIG_PINCTRL_SUN50I_A64

Linux Kernel Configuration
└─>Device Drivers
└─>Pin controllers
└─>PINCTRL_SUN50I_A64
In linux kernel since version 3.10 (release Date: 2013-06-30)  
source code:
drivers/pinctrl/sunxi/pinctrl-sun50i-a64.c