CONFIG_TWL6040_CORE (not configurable)

modulename: twl6040.ko

and/or

twl6040-core.ko

configname: CONFIG_TWL6040_CORE

Linux Kernel Configuration
└─>Device Drivers
└─>Multifunction device drivers
└─>TWL6040_CORE
In linux kernel since version 3.1 (release Date: 2011-10-24)  
source code:
drivers/mfd//

depends
CONFIG_GENERIC_HARDIRQS
CONFIG_MFD_SUPPORT
CONFIG_TWL4030_CORE or CONFIG_HAS_IOMEM or CONFIG_I2C