CONFIG_CLKSRC_LPC32XX (not configurable)

modulename: time-lpc32xx.ko

and/or

timer-lpc32xx.ko

configname: CONFIG_CLKSRC_LPC32XX

Linux Kernel Configuration
└─>Device Drivers
└─>Clock Source drivers
└─>CLKSRC_LPC32XX
In linux kernel since version 3.10 (release Date: 2013-06-30)  
source code: