Exynos5422 Dynamic Memory Controller driver

modulename: exynos5422-dmc.ko

configname: CONFIG_EXYNOS5422_DMC

Linux Kernel Configuration
└─>Device Drivers
└─>Memory Controller drivers
└─>Generic Dynamic Voltage and Frequency Scaling (DVFS) support
└─>DEVFREQ-Event device Support
└─>Exynos5422 Dynamic Memory Controller driver
In linux kernel since version 5.1 (release Date: 2019-05-05)  
This adds driver for Samsung Exynos5422 SoC DMC (Dynamic Memory
Controller). The driver provides support for Dynamic Voltage and
Frequency Scaling in DMC and DRAM. It also supports changing timings
of DRAM running with different frequency. The timings are calculated
based on DT memory information.
If unsure, say Y on devices with Samsung Exynos SoCs.

source code: