TI TPS65912 GPIO

modulename: gpio-tps65912.ko

configname: CONFIG_GPIO_TPS65912

Linux Kernel Configuration
└─>Device Drivers
└─>GPIO Support
└─>MFD GPIO expanders
└─>TI TPS65912 GPIO
In linux kernel since version 3.1 (release Date: 2011-10-24)  
This driver supports TPS65912 GPIO chip.

source code: