CONFIG_ARM_EXYNOS4_BUS_DEVFREQ: ARM Exynos4210/4212/4412 Memory Bus DEVFREQ Driver

General informations

The Linux kernel configuration item CONFIG_ARM_EXYNOS4_BUS_DEVFREQ:

• prompt: ARM Exynos4210/4212/4412 Memory Bus DEVFREQ Driver
• type: bool
• depends on: ( CONFIG_CPU_EXYNOS4210 || CONFIG_SOC_EXYNOS4212 || CONFIG_SOC_EXYNOS4412 ) && ! CONFIG_ARCH_MULTIPLATFORM
• defined in drivers/devfreq/Kconfig
• found in Linux kernels: 3.3–3.19, 4.0–4.6

Help text

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.

Hardware

LKDDb

Raw data from LKDDb:

• lkddb platform "exynos4-busfreq" : CONFIG_ARM_EXYNOS4_BUS_DEVFREQ CONFIG_ARM_EXYNOS5_BUS_DEVFREQ CONFIG_PM_DEVFREQ : drivers/devfreq/exynos/exynos4_bus.c # in 3.11–3.19, 4.0–4.6
• lkddb platform "exynos4-busfreq" : CONFIG_ARM_EXYNOS4_BUS_DEVFREQ CONFIG_PM_DEVFREQ : drivers/devfreq/exynos4_bus.c # in 3.3–3.10
• lkddb platform "exynos5-bus-int" : CONFIG_ARM_EXYNOS4_BUS_DEVFREQ CONFIG_ARM_EXYNOS5_BUS_DEVFREQ CONFIG_PM_DEVFREQ : drivers/devfreq/exynos/exynos5_bus.c # in 3.11–3.19, 4.0–4.6

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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