Temperature sensor on Samsung EXYNOS

modulename: exynos_thermal.ko

configname: CONFIG_EXYNOS_THERMAL

Linux Kernel Configuration
└─>Device Drivers
└─>Generic Thermal sysfs driver
└─>Temperature sensor on Samsung EXYNOS
In linux kernel since version 3.1 (release Date: 2011-10-24)  
If you say yes here you get support for TMU (Thermal Management
Unit) on SAMSUNG EXYNOS series of SoC.

source code: