CONFIG_GPIO_MPC5200 (not configurable)

modulename: gpio-mpc5200.ko

configname: CONFIG_GPIO_MPC5200

Linux Kernel Configuration
└─>Device Drivers
└─>GPIO Support
└─>Memory mapped GPIO drivers
└─>GPIO_MPC5200
In linux kernel since version 3.1 (release Date: 2011-10-24)  
source code:
drivers/gpio/gpio-mpc5200.c