ARM Exynos4210/4212/4412 Memory Bus DEVFREQ Driver
modulename: exynos_ppmu.ko
configname: CONFIG_ARM_EXYNOS4_BUS_DEVFREQ
Linux Kernel Configuration
└─>Device Drivers
└─>Generic Dynamic Voltage and Frequency Scaling (DVFS) support
└─>ARM Exynos4210/4212/4412 Memory Bus DEVFREQ Driver
In linux kernel since version 3.1 (release Date: 2011-10-24)
This adds the DEVFREQ driver for Exynos4210 memory bus (vdd_int)
and Exynos4212/4412 memory interface and bus (vdd_mif + vdd_int).
It reads PPMU counters of memory controllers and adjusts
the operating frequencies and voltages with OPP support.
This does not yet operate with optimal voltages.
and Exynos4212/4412 memory interface and bus (vdd_mif + vdd_int).
It reads PPMU counters of memory controllers and adjusts
the operating frequencies and voltages with OPP support.
This does not yet operate with optimal voltages.