i.MX8M DDRC DEVFREQ Driver

modulename: imx8m-ddrc.ko

configname: CONFIG_ARM_IMX8M_DDRC_DEVFREQ

Linux Kernel Configuration
└─>Device Drivers
└─>Generic Dynamic Voltage and Frequency Scaling (DVFS) support
└─>i.MX8M DDRC DEVFREQ Driver
In linux kernel since version 5.1 (release Date: 2019-05-05)  
This adds the DEVFREQ driver for the i.MX8M DDR Controller. It allows
adjusting DRAM frequency.

source code: