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/linux/drivers/devfreq/
H A Ddevfreq.c3 * devfreq: Generic Dynamic Voltage and Frequency Scaling (DVFS) Framework
22 #include <linux/devfreq.h>
23 #include <linux/devfreq-governor.h>
34 #include <trace/events/devfreq.h>
43 * devfreq core provides delayed work based load monitoring helper
49 /* The list of all device-devfreq governors */
51 /* The list of all device-devfreq */
61 * find_device_devfreq() - find devfreq struct using device pointer
62 * @dev: device pointer used to lookup device devfreq.
65 * devfreq info. devfreq_list_lock should be held by the caller.
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H A Dgovernor_passive.c3 * linux/drivers/devfreq/governor_passive.c
16 #include <linux/devfreq.h>
17 #include <linux/devfreq-governor.h>
102 static int get_target_freq_with_cpufreq(struct devfreq *devfreq, in get_target_freq_with_cpufreq() argument
106 (struct devfreq_passive_data *)devfreq->data; in get_target_freq_with_cpufreq()
131 devfreq->opp_table, &cpu_cur); in get_target_freq_with_cpufreq()
139 devfreq_get_freq_range(devfreq, &dev_min, &dev_max); in get_target_freq_with_cpufreq()
155 static int get_target_freq_with_devfreq(struct devfreq *devfreq, in get_target_freq_with_devfreq() argument
159 = (struct devfreq_passive_data *)devfreq->data; in get_target_freq_with_devfreq()
160 struct devfreq *parent_devfreq = (struct devfreq *)p_data->parent; in get_target_freq_with_devfreq()
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H A DKconfig7 devfreq, a generic DVFS framework can be registered for a device
8 in order to let the governor provided to devfreq choose an
11 Each device may have its own governor and policy. Devfreq can
13 notification to "nb", a notifier block, of devfreq.
17 determined by the single device's state, an instance of devfreq
20 to a device by 1-to-1. The device registering devfreq takes the
23 given to devfreq.
25 When OPP is used with the devfreq device, it is recommended to
26 register devfreq's nb to the OPP's notifier head. If OPP is
27 used with the devfreq device, you may use OPP helper
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H A Ddevfreq-event.c3 * devfreq-event: a framework to provide raw data and events of devfreq devices
8 * This driver is based on drivers/devfreq/devfreq.c.
11 #include <linux/devfreq-event.h>
22 /* The list of all devfreq event list */
29 * devfreq_event_enable_edev() - Enable the devfreq-event dev and increase
30 * the enable_count of devfreq-event dev.
31 * @edev : the devfreq-event device
34 * devfreq-event device. The devfreq-event device should be enabled before
35 * using it by devfreq device.
60 * devfreq_event_disable_edev() - Disable the devfreq-event dev and decrease
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H A Dgovernor_userspace.c3 * linux/drivers/devfreq/governor_userspace.c
11 #include <linux/devfreq.h>
12 #include <linux/devfreq-governor.h>
23 static int devfreq_userspace_func(struct devfreq *df, unsigned long *freq) in devfreq_userspace_func()
38 struct devfreq *devfreq = to_devfreq(dev); in set_freq_store() local
47 mutex_lock(&devfreq->lock); in set_freq_store()
48 data = devfreq->governor_data; in set_freq_store()
52 err = update_devfreq(devfreq); in set_freq_store()
55 mutex_unlock(&devfreq->lock); in set_freq_store()
62 struct devfreq *devfreq = to_devfreq(dev); in set_freq_show() local
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H A DMakefile2 obj-$(CONFIG_PM_DEVFREQ) += devfreq.o
3 obj-$(CONFIG_PM_DEVFREQ_EVENT) += devfreq-event.o
10 # DEVFREQ Drivers
15 obj-$(CONFIG_ARM_MEDIATEK_CCI_DEVFREQ) += mtk-cci-devfreq.o
18 obj-$(CONFIG_ARM_TEGRA_DEVFREQ) += tegra30-devfreq.o
20 # DEVFREQ Event Drivers
H A Drk3399_dmc.c11 #include <linux/devfreq.h>
12 #include <linux/devfreq-event.h>
42 struct devfreq *devfreq; member
253 dev_err(dev, "failed to disable the devfreq-event devices\n"); in rk3399_dmcfreq_suspend()
257 ret = devfreq_suspend_device(dmcfreq->devfreq); in rk3399_dmcfreq_suspend()
259 dev_err(dev, "failed to suspend the devfreq devices\n"); in rk3399_dmcfreq_suspend()
273 dev_err(dev, "failed to enable the devfreq-event devices\n"); in rk3399_dmcfreq_resume()
277 ret = devfreq_resume_device(dmcfreq->devfreq); in rk3399_dmcfreq_resume()
279 dev_err(dev, "failed to resume the devfreq devices\n"); in rk3399_dmcfreq_resume()
361 data->edev = devfreq_event_get_edev_by_phandle(dev, "devfreq-events", 0); in rk3399_dmcfreq_probe()
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H A Dimx-bus.c7 #include <linux/devfreq.h>
17 struct devfreq *devfreq; member
125 priv->devfreq = devm_devfreq_add_device(dev, &priv->profile, in imx_bus_probe()
127 if (IS_ERR(priv->devfreq)) { in imx_bus_probe()
128 ret = PTR_ERR(priv->devfreq); in imx_bus_probe()
129 dev_err(dev, "failed to add devfreq device: %d\n", ret); in imx_bus_probe()
158 .name = "imx-bus-devfreq",
/linux/drivers/gpu/drm/lima/
H A Dlima_devfreq.c9 #include <linux/devfreq.h>
19 static void lima_devfreq_update_utilization(struct lima_devfreq *devfreq) in lima_devfreq_update_utilization() argument
24 last = devfreq->time_last_update; in lima_devfreq_update_utilization()
26 if (devfreq->busy_count > 0) in lima_devfreq_update_utilization()
27 devfreq->busy_time += ktime_sub(now, last); in lima_devfreq_update_utilization()
29 devfreq->idle_time += ktime_sub(now, last); in lima_devfreq_update_utilization()
31 devfreq->time_last_update = now; in lima_devfreq_update_utilization()
47 static void lima_devfreq_reset(struct lima_devfreq *devfreq) in lima_devfreq_reset() argument
49 devfreq->busy_time = 0; in lima_devfreq_reset()
50 devfreq->idle_time = 0; in lima_devfreq_reset()
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H A Dlima_devfreq.h7 #include <linux/devfreq.h>
11 struct devfreq;
17 struct devfreq *devfreq; member
36 void lima_devfreq_record_busy(struct lima_devfreq *devfreq);
37 void lima_devfreq_record_idle(struct lima_devfreq *devfreq);
39 int lima_devfreq_resume(struct lima_devfreq *devfreq);
40 int lima_devfreq_suspend(struct lima_devfreq *devfreq);
/linux/include/linux/
H A Ddevfreq.h3 * devfreq: Generic Dynamic Voltage and Frequency Scaling (DVFS) Framework
18 /* DEVFREQ governor name */
25 /* DEVFREQ notifier interface */
32 /* DEVFREQ work timers */
39 struct devfreq;
45 * struct devfreq_dev_status - Data given from devfreq user device to
53 * @private_data: An entry not specified by the devfreq framework.
76 * struct devfreq_dev_profile - Devfreq's user device profile
89 * status to devfreq. Governors are recommended not to
92 * devfreq.last_status.
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H A Ddevfreq-event.h3 * devfreq-event: a framework to provide raw data and events of devfreq devices
15 * struct devfreq_event_dev - the devfreq-event device
17 * @node : Contain the devfreq-event device that have been registered.
18 * @dev : the device registered by devfreq-event class. dev.parent is
19 * the device using devfreq-event.
20 * @lock : a mutex to protect accessing devfreq-event.
22 * @desc : the description for devfreq-event device.
24 * This structure contains devfreq-event device information.
37 * struct devfreq_event_data - the devfreq-event data
39 * @load_count : load count of devfreq-event device for the given period.
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H A Ddevfreq_cooling.h4 * devfreq
13 #include <linux/devfreq.h>
18 * struct devfreq_cooling_power - Devfreq cooling power ops
29 * devfreq 'last_status').
38 int (*get_real_power)(struct devfreq *df, u32 *power,
45 of_devfreq_cooling_register_power(struct device_node *np, struct devfreq *df,
48 of_devfreq_cooling_register(struct device_node *np, struct devfreq *df);
49 struct thermal_cooling_device *devfreq_cooling_register(struct devfreq *df);
52 devfreq_cooling_em_register(struct devfreq *df,
58 of_devfreq_cooling_register_power(struct device_node *np, struct devfreq *df, in of_devfreq_cooling_register_power()
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/linux/Documentation/ABI/testing/
H A Dsysfs-class-devfreq1 What: /sys/class/devfreq/.../
5 Provide a place in sysfs for the devfreq objects.
6 This allows accessing various devfreq specific variables.
7 The name of devfreq object denoted as ... is same as the
8 name of device using devfreq.
10 What: /sys/class/devfreq/.../name
14 The /sys/class/devfreq/.../name shows the name of device
15 of the corresponding devfreq object.
17 What: /sys/class/devfreq/.../governor
21 The /sys/class/devfreq/.../governor show or set the name of the
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H A Dsysfs-class-devfreq-event1 What: /sys/class/devfreq-event/event<x>/
5 Provide a place in sysfs for the devfreq-event objects.
6 This allows accessing various devfreq-event specific variables.
7 The name of devfreq-event object denoted as 'event<x>' which
8 includes the unique number of 'x' for each devfreq-event object.
10 What: /sys/class/devfreq-event/event<x>/name
14 The /sys/class/devfreq-event/event<x>/name attribute contains
15 the name of the devfreq-event object. This attribute is
18 What: /sys/class/devfreq-event/event<x>/enable_count
22 The /sys/class/devfreq-event/event<x>/enable_count attribute
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/linux/Documentation/translations/zh_CN/doc-guide/
H A Dcontributing.rst47 ./drivers/devfreq/devfreq.c:1818: warning: bad line:
49 ./drivers/devfreq/devfreq.c:1854: warning: bad line:
59 * @dev: The devfreq user device. (parent of devfreq)
60 * @devfreq: The devfreq object.
70 [PATCH] PM / devfreq: Fix two malformed kerneldoc comments
72 Two kerneldoc comments in devfreq.c fail to adhere to the required format,
75 ./drivers/devfreq/devfreq.c:1818: warning: bad line:
77 ./drivers/devfreq/devfreq.c:1854: warning: bad line:
84 drivers/devfreq/devfreq.c | 4 ++--
87 diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
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/linux/drivers/powercap/
H A Ddtpm_devfreq.c7 * The devfreq device combined with the energy model and the load can
15 #include <linux/devfreq.h>
26 struct devfreq *devfreq; member
37 struct devfreq *devfreq = dtpm_devfreq->devfreq; in update_pd_power_uw() local
38 struct device *dev = devfreq->dev.parent; in update_pd_power_uw()
56 struct devfreq *devfreq = dtpm_devfreq->devfreq; in set_pd_power_limit() local
57 struct device *dev = devfreq->dev.parent; in set_pd_power_limit()
96 struct devfreq *devfreq = dtpm_devfreq->devfreq; in get_pd_power_uw() local
97 struct device *dev = devfreq->dev.parent; in get_pd_power_uw()
105 mutex_lock(&devfreq->lock); in get_pd_power_uw()
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/linux/include/trace/events/
H A Ddevfreq.h3 #define TRACE_SYSTEM devfreq
8 #include <linux/devfreq.h>
12 TP_PROTO(struct devfreq *devfreq, unsigned long freq,
15 TP_ARGS(devfreq, freq, prev_freq),
18 __string(dev_name, dev_name(&devfreq->dev))
29 __entry->busy_time = devfreq->last_status.busy_time;
30 __entry->total_time = devfreq->last_status.total_time;
40 TP_PROTO(struct devfreq *devfreq),
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/linux/drivers/thermal/
H A Ddevfreq_cooling.c4 * devfreq
9 * - If OPPs are added or removed after devfreq cooling has
10 * registered, the devfreq cooling won't react to it.
13 #include <linux/devfreq.h>
28 * struct devfreq_cooling_device - Devfreq cooling device
31 * @cooling_ops: devfreq callbacks to thermal cooling device ops
32 * @devfreq: Pointer to associated devfreq device.
47 * of the devfreq device.
48 * @em_pd: Energy Model for the associated Devfreq device
53 struct devfreq *devfreq; member
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/linux/drivers/devfreq/event/
H A DKconfig3 bool "DEVFREQ-Event device Support"
5 The devfreq-event device provide the raw data and events which
6 indicate the current state of devfreq-event device. The provided
7 data from devfreq-event device is used to monitor the state of
11 The devfreq-event device can support the various type of events
13 may be used by devfreq governor and other subsystem.
18 tristate "Exynos NoC (Network On Chip) Probe DEVFREQ event Driver"
23 This add the devfreq-event driver for Exynos SoC. It provides NoC
27 tristate "Exynos PPMU (Platform Performance Monitoring Unit) DEVFREQ event Driver"
31 This add the devfreq-event driver for Exynos SoC. It provides PPMU
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/linux/Documentation/doc-guide/
H A Dcontributing.rst58 ./drivers/devfreq/devfreq.c:1818: warning: bad line:
60 ./drivers/devfreq/devfreq.c:1854: warning: bad line:
71 * @dev: The devfreq user device. (parent of devfreq)
72 * @devfreq: The devfreq object.
86 [PATCH] PM / devfreq: Fix two malformed kerneldoc comments
88 Two kerneldoc comments in devfreq.c fail to adhere to the required format,
91 ./drivers/devfreq/devfreq.c:1818: warning: bad line:
93 ./drivers/devfreq/devfreq.c:1854: warning: bad line:
100 drivers/devfreq/devfreq.c | 4 ++--
103 diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
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/linux/Documentation/driver-api/
H A Ddevfreq.rst23 :c:func:`devfreq_add_device` function to create a :c:type:`devfreq` instance.
25 .. kernel-doc:: include/linux/devfreq.h
26 .. kernel-doc:: include/linux/devfreq-event.h
27 .. kernel-doc:: drivers/devfreq/devfreq.c
29 .. kernel-doc:: drivers/devfreq/devfreq-event.c
/linux/drivers/gpu/drm/panfrost/
H A Dpanfrost_devfreq.h7 #include <linux/devfreq.h>
11 struct devfreq;
17 struct devfreq *devfreq; member
42 void panfrost_devfreq_record_busy(struct panfrost_devfreq *devfreq);
43 void panfrost_devfreq_record_idle(struct panfrost_devfreq *devfreq);
/linux/Documentation/devicetree/bindings/interconnect/
H A Dsamsung,exynos-bus.yaml172 devfreq:
177 devfreq-events:
182 Devfreq-event device to monitor the current utilization of buses. Valid
230 devfreq-events = <&ppmu_dmc0_3>, <&ppmu_dmc1_3>;
274 devfreq-events = <&ppmu_leftbus_3>, <&ppmu_rightbus_3>;
283 devfreq = <&bus_leftbus>;
294 devfreq-events = <&ppmu_dmc0_3>, <&ppmu_dmc1_3>;
305 devfreq-events = <&ppmu_leftbus_3>, <&ppmu_rightbus_3>;
316 devfreq = <&leftbus>;
/linux/arch/arm/boot/dts/samsung/
H A Dexynos5422-odroid-core.dtsi396 devfreq-events = <&nocp_mem0_0>, <&nocp_mem0_1>,
405 devfreq = <&bus_wcore>;
411 devfreq = <&bus_wcore>;
417 devfreq = <&bus_wcore>;
423 devfreq = <&bus_wcore>;
429 devfreq = <&bus_wcore>;
435 devfreq = <&bus_wcore>;
441 devfreq = <&bus_wcore>;
447 devfreq = <&bus_wcore>;
453 devfreq = <&bus_wcore>;
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