Intel Cherryview/Braswell pinctrl and GPIO driver

modulename: pinctrl-cherryview.ko

configname: CONFIG_PINCTRL_CHERRYVIEW

Linux Kernel Configuration
└─>Device Drivers
└─>Pin controllers
└─>Intel Cherryview/Braswell pinctrl and GPIO driver
In linux kernel since version 3.10 (release Date: 2013-06-30)  
Cherryview/Braswell pinctrl driver provides an interface that
allows configuring of SoC pins and using them as GPIOs.

source code: