TPS65218 GPIO

modulename: gpio-tps65218.ko

configname: CONFIG_GPIO_TPS65218

Linux Kernel Configuration
└─>Device Drivers
└─>GPIO Support
└─>MFD GPIO expanders
└─>TPS65218 GPIO
In linux kernel since version 4.1 (release Date: 2015-06-21)  
Select this option to enable GPIO driver for the TPS65218
chip family.

source code:
drivers/gpio/gpio-tps65218.c