Nintendo Wii (Hollywood) GPIO

modulename: gpio-hlwd.ko

configname: CONFIG_GPIO_HLWD

Linux Kernel Configuration
└─>Device Drivers
└─>GPIO Support
└─>Memory mapped GPIO drivers
└─>Nintendo Wii (Hollywood) GPIO
In linux kernel since version 4.2 (release Date: 2015-08-30)  
Select this to support the GPIO controller of the Nintendo Wii.

If unsure, say N.

source code:
drivers/gpio/gpio-hlwd.c