NVIDIA Tegra20 DEVFREQ Driver

modulename: tegra20-devfreq.ko

configname: CONFIG_ARM_TEGRA20_DEVFREQ

Linux Kernel Configuration
└─>Device Drivers
└─>Generic Dynamic Voltage and Frequency Scaling (DVFS) support
└─>Common Clock Framework
└─>NVIDIA Tegra20 DEVFREQ Driver
In linux kernel since version 4.14.326 (release Date: 2023-09-23)  
This adds the DEVFREQ driver for the Tegra20 family of SoCs.
It reads Memory Controller counters and adjusts the operating
frequencies and voltages with OPP support.

source code: