AMD Promontory GPIO support

modulename: gpio-amdpt.ko

configname: CONFIG_GPIO_AMDPT

Linux Kernel Configuration
└─>Device Drivers
└─>GPIO Support
└─>Memory mapped GPIO drivers
└─>AMD Promontory GPIO support
In linux kernel since version 3.10 (release Date: 2013-06-30)  
Driver for GPIO functionality on Promontory IOHub.
Requires ACPI ASL code to enumerate as a platform device.

source code: