NXP LPC18XX/43XX GPIO support

modulename: gpio-lpc18xx.ko

configname: CONFIG_GPIO_LPC18XX

Linux Kernel Configuration
└─>Device Drivers
└─>GPIO Support
└─>Memory mapped GPIO drivers
└─>NXP LPC18XX/43XX GPIO support
In linux kernel since version 3.10 (release Date: 2013-06-30)  
Select this option to enable GPIO driver for
NXP LPC18XX/43XX devices.

source code:
drivers/gpio/gpio-lpc18xx.c
selects
CONFIG_IRQ_DOMAIN_HIERARCHY