SAMSUNG EXYNOS4x12

modulename: exynos4x12-cpufreq.ko

configname: CONFIG_ARM_EXYNOS4X12_CPUFREQ

Linux Kernel Configuration
└─>SAMSUNG EXYNOS4x12
In linux kernel since version 3.1 (release Date: 2011-10-24)  
This adds the CPUFreq driver for Samsung EXYNOS4X12
SoC (EXYNOS4212 or EXYNOS4412).

If in doubt, say N.

source code:
drivers/cpufreq/exynos4x12-cpufreq.c