'powersave' governor

modulename: cpufreq_powersave.ko

configname: CONFIG_CPU_FREQ_GOV_POWERSAVE

Linux Kernel Configuration
└─>Power management and ACPI options
└─>CPU Frequency scaling
└─>'powersave' governor
In linux kernel since version 3.10 (release Date: 2013-06-30)  
This cpufreq governor sets the frequency statically to the
lowest available CPU frequency.

To compile this driver as a module, choose M here: the
module will be called cpufreq_powersave.

If in doubt, say Y.

source code:
depends
CONFIG_CPU_FREQ