ARM Exynos Generic Memory Bus DEVFREQ Driver

modulename: exynos-bus.ko


Linux Kernel Configuration
└─>Device Drivers
└─>Generic Dynamic Voltage and Frequency Scaling (DVFS) support
└─>ARM Exynos Generic Memory Bus DEVFREQ Driver
In linux kernel since version 3.10 (release Date: 2013-06-30)  
This adds the common DEVFREQ driver for Exynos Memory bus. Exynos
Memory bus has one more group of memory bus (e.g, MIF and INT block).
Each memory bus group could contain many memoby bus block. It reads
PPMU counters of memory controllers by using DEVFREQ-event device
and adjusts the operating frequencies and voltages with OPP support.
This does not yet operate with optimal voltages.

source code: