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The Linux kernel configuration item CONFIG_ARM_EXYNOS_BUS_DEVFREQ
has multiple definitions:
drivers/devfreq/Kconfig
The configuration item CONFIG_ARM_EXYNOS_BUS_DEVFREQ:
CONFIG_ARCH_EXYNOS || CONFIG_COMPILE_TEST
exynos-bus
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.
drivers/devfreq/Kconfig
The configuration item CONFIG_ARM_EXYNOS_BUS_DEVFREQ:
CONFIG_ARCH_EXYNOS || CONFIG_COMPILE_TEST
exynos-bus
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.
drivers/devfreq/Kconfig
The configuration item CONFIG_ARM_EXYNOS_BUS_DEVFREQ:
CONFIG_ARCH_EXYNOS
exynos-bus
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.
Raw data from LKDDb:
lkddb module exynos-bus CONFIG_ARM_EXYNOS_BUS_DEVFREQ : drivers/devfreq/Kconfig : "ARM Exynos Generic Memory Bus DEVFREQ Driver" # in 4.8–4.20, 5.0–5.19, 6.0–6.13
lkddb of "" "" "samsung,exynos-bus" : CONFIG_ARM_EXYNOS_BUS_DEVFREQ CONFIG_PM_DEVFREQ : drivers/devfreq/exynos-bus.c # in 4.7–4.20, 5.0–5.19, 6.0–6.13
lkddb platform "exynos-bus" : CONFIG_ARM_EXYNOS_BUS_DEVFREQ CONFIG_PM_DEVFREQ : drivers/devfreq/exynos-bus.c # in 4.7–4.20, 5.0–5.19, 6.0–6.13
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Automatically generated (in year 2025). See also LKDDb sources on GitLab