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The Linux kernel configuration item CONFIG_PM_DEVFREQ_EVENT
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The devfreq-event device provide the raw data and events which indicate the current state of devfreq-event device. The provided data from devfreq-event device is used to monitor the state of device and determine the suitable size of resource to reduce the wasted resource.
The devfreq-event device can support the various type of events (e.g., raw data, utilization, latency, bandwidth). The events may be used by devfreq governor and other subsystem.
Raw data from LKDDb:
lkddb of "" "" "rockchip,rk3399-dfi" : CONFIG_DEVFREQ_EVENT_ROCKCHIP_DFI CONFIG_PM_DEVFREQ CONFIG_PM_DEVFREQ_EVENT : drivers/devfreq/event/rockchip-dfi.c # in 4.9–4.20, 5.0–5.19, 6.0–6.11, 6.12-rc+HEAD
lkddb of "" "" "rockchip,rk3568-dfi" : CONFIG_DEVFREQ_EVENT_ROCKCHIP_DFI CONFIG_PM_DEVFREQ CONFIG_PM_DEVFREQ_EVENT : drivers/devfreq/event/rockchip-dfi.c # in 6.7–6.11, 6.12-rc+HEAD
lkddb of "" "" "rockchip,rk3588-dfi" : CONFIG_DEVFREQ_EVENT_ROCKCHIP_DFI CONFIG_PM_DEVFREQ CONFIG_PM_DEVFREQ_EVENT : drivers/devfreq/event/rockchip-dfi.c # in 6.7–6.11, 6.12-rc+HEAD
lkddb of "" "" "samsung,exynos-ppmu" : CONFIG_DEVFREQ_EVENT_EXYNOS_PPMU CONFIG_PM_DEVFREQ CONFIG_PM_DEVFREQ_EVENT : drivers/devfreq/event/exynos-ppmu.c # in 4.0–4.20, 5.0–5.19, 6.0–6.11, 6.12-rc+HEAD
lkddb of "" "" "samsung,exynos-ppmu-v2" : CONFIG_DEVFREQ_EVENT_EXYNOS_PPMU CONFIG_PM_DEVFREQ CONFIG_PM_DEVFREQ_EVENT : drivers/devfreq/event/exynos-ppmu.c # in 4.3–4.20, 5.0–5.19, 6.0–6.11, 6.12-rc+HEAD
lkddb of "" "" "samsung,exynos5420-nocp" : CONFIG_DEVFREQ_EVENT_EXYNOS_NOCP CONFIG_PM_DEVFREQ CONFIG_PM_DEVFREQ_EVENT : drivers/devfreq/event/exynos-nocp.c # in 4.7–4.20, 5.0–5.19, 6.0–6.11, 6.12-rc+HEAD
lkddb platform "exynos-nocp" : CONFIG_DEVFREQ_EVENT_EXYNOS_NOCP CONFIG_PM_DEVFREQ CONFIG_PM_DEVFREQ_EVENT : drivers/devfreq/event/exynos-nocp.c # in 4.7–4.20, 5.0–5.19, 6.0–6.11, 6.12-rc+HEAD
lkddb platform "exynos-ppmu" : CONFIG_DEVFREQ_EVENT_EXYNOS_PPMU CONFIG_PM_DEVFREQ CONFIG_PM_DEVFREQ_EVENT : drivers/devfreq/event/exynos-ppmu.c # in 4.0–4.20, 5.0–5.19, 6.0–6.11, 6.12-rc+HEAD
lkddb platform "rockchip-dfi" : CONFIG_DEVFREQ_EVENT_ROCKCHIP_DFI CONFIG_PM_DEVFREQ CONFIG_PM_DEVFREQ_EVENT : drivers/devfreq/event/rockchip-dfi.c # in 4.9–4.20, 5.0–5.19, 6.0–6.11, 6.12-rc+HEAD
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Automatically generated (in year 2024). See also LKDDb sources on GitLab