CONFIG_PCI_KEYSTONE (not configurable)

modulename: pci-keystone.ko

configname: CONFIG_PCI_KEYSTONE

Linux Kernel Configuration
└─>Device Drivers
└─>PCI support
└─>PCI controller drivers
└─>DesignWare PCI Core Support
└─>PCI_KEYSTONE
In linux kernel since version 3.10 (release Date: 2013-06-30)  
source code:
drivers/pci/controller/dwc/pci-keystone.c
depends
CONFIG_PCI