CPUFreq driver based on the ACPI CPPC spec

modulename: cppc_cpufreq.ko

configname: CONFIG_ACPI_CPPC_CPUFREQ

Linux Kernel Configuration
└─>CPUFreq driver based on the ACPI CPPC spec
In linux kernel since version 3.10 (release Date: 2013-06-30)  
This adds a CPUFreq driver which uses CPPC methods
as described in the ACPIv5.1 spec. CPPC stands for
Collaborative Processor Performance Controls. It
is based on an abstract continuous scale of CPU
performance values which allows the remote power
processor to flexibly optimize for power and
performance. CPPC relies on power management firmware
support for its operation.

If in doubt, say N.

source code:

depends
CONFIG_ACPI_PROCESSOR |
| CONFIG_CPU_FREQ or CONFIG_ARM or CONFIG_ARM64