CONFIG_MTK_TIMER (not configurable)

modulename: timer-mediatek.ko

and/or

mtk_timer.ko

configname: CONFIG_MTK_TIMER

Linux Kernel Configuration
└─>Device Drivers
└─>Clock Source drivers
└─>MTK_TIMER
In linux kernel since version 3.17 (release Date: 2014-10-05)  
source code:
drivers/clocksource/mtk_timer.c

depends
 or CONFIG_GENERIC_CLOCKEVENTS |
| CONFIG_HAS_IOMEM or  NOT CONFIG_ARCH_USES_GETTIMEOFFSET

is depended by
CONFIG_ARCH_MEDIATEK