Aeroflex Gaisler GRGPIO support

modulename: gpio-grgpio.ko

configname: CONFIG_GPIO_GRGPIO

Linux Kernel Configuration
└─>Device Drivers
└─>GPIO Support
└─>Aeroflex Gaisler GRGPIO support
In linux kernel since version 3.1 (release Date: 2011-10-24)  
Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
VHDL IP core library.

source code:
drivers/gpio/gpio-grgpio.c
selects
CONFIG_GPIO_GENERIC
CONFIG_IRQ_DOMAIN