CONFIG_CLKEVT_I8253 (not configurable)

configname: CONFIG_CLKEVT_I8253

Linux Kernel Configuration
└─>Device Drivers
└─>Clock Source drivers
└─>CLKEVT_I8253
In linux kernel since version 3.1 (release Date: 2011-10-24)  
depends
CONFIG_GENERIC_CLOCKEVENTS