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9#ifndef __LINUX_DEVFREQ_EVENT_H__
10#define __LINUX_DEVFREQ_EVENT_H__
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12#include <linux/device.h>
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26struct devfreq_event_dev {
27 struct list_head node;
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29 struct device dev;
30 struct mutex lock;
31 u32 enable_count;
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33 const struct devfreq_event_desc *desc;
34};
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47struct devfreq_event_data {
48 unsigned long load_count;
49 unsigned long total_count;
50};
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65struct devfreq_event_ops {
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67 int (*enable)(struct devfreq_event_dev *edev);
68 int (*disable)(struct devfreq_event_dev *edev);
69 int (*reset)(struct devfreq_event_dev *edev);
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72 int (*set_event)(struct devfreq_event_dev *edev);
73 int (*get_event)(struct devfreq_event_dev *edev,
74 struct devfreq_event_data *edata);
75};
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92struct devfreq_event_desc {
93 const char *name;
94 u32 event_type;
95 void *driver_data;
96
97 const struct devfreq_event_ops *ops;
98};
99
100#if defined(CONFIG_PM_DEVFREQ_EVENT)
101extern int devfreq_event_enable_edev(struct devfreq_event_dev *edev);
102extern int devfreq_event_disable_edev(struct devfreq_event_dev *edev);
103extern bool devfreq_event_is_enabled(struct devfreq_event_dev *edev);
104extern int devfreq_event_set_event(struct devfreq_event_dev *edev);
105extern int devfreq_event_get_event(struct devfreq_event_dev *edev,
106 struct devfreq_event_data *edata);
107extern int devfreq_event_reset_event(struct devfreq_event_dev *edev);
108extern struct devfreq_event_dev *devfreq_event_get_edev_by_phandle(
109 struct device *dev, int index);
110extern int devfreq_event_get_edev_count(struct device *dev);
111extern struct devfreq_event_dev *devfreq_event_add_edev(struct device *dev,
112 struct devfreq_event_desc *desc);
113extern int devfreq_event_remove_edev(struct devfreq_event_dev *edev);
114extern struct devfreq_event_dev *devm_devfreq_event_add_edev(struct device *dev,
115 struct devfreq_event_desc *desc);
116extern void devm_devfreq_event_remove_edev(struct device *dev,
117 struct devfreq_event_dev *edev);
118static inline void *devfreq_event_get_drvdata(struct devfreq_event_dev *edev)
119{
120 return edev->desc->driver_data;
121}
122#else
123static inline int devfreq_event_enable_edev(struct devfreq_event_dev *edev)
124{
125 return -EINVAL;
126}
127
128static inline int devfreq_event_disable_edev(struct devfreq_event_dev *edev)
129{
130 return -EINVAL;
131}
132
133static inline bool devfreq_event_is_enabled(struct devfreq_event_dev *edev)
134{
135 return false;
136}
137
138static inline int devfreq_event_set_event(struct devfreq_event_dev *edev)
139{
140 return -EINVAL;
141}
142
143static inline int devfreq_event_get_event(struct devfreq_event_dev *edev,
144 struct devfreq_event_data *edata)
145{
146 return -EINVAL;
147}
148
149static inline int devfreq_event_reset_event(struct devfreq_event_dev *edev)
150{
151 return -EINVAL;
152}
153
154static inline struct devfreq_event_dev *devfreq_event_get_edev_by_phandle(
155 struct device *dev, int index)
156{
157 return ERR_PTR(-EINVAL);
158}
159
160static inline int devfreq_event_get_edev_count(struct device *dev)
161{
162 return -EINVAL;
163}
164
165static inline struct devfreq_event_dev *devfreq_event_add_edev(struct device *dev,
166 struct devfreq_event_desc *desc)
167{
168 return ERR_PTR(-EINVAL);
169}
170
171static inline int devfreq_event_remove_edev(struct devfreq_event_dev *edev)
172{
173 return -EINVAL;
174}
175
176static inline struct devfreq_event_dev *devm_devfreq_event_add_edev(
177 struct device *dev,
178 struct devfreq_event_desc *desc)
179{
180 return ERR_PTR(-EINVAL);
181}
182
183static inline void devm_devfreq_event_remove_edev(struct device *dev,
184 struct devfreq_event_dev *edev)
185{
186}
187
188static inline void *devfreq_event_get_drvdata(struct devfreq_event_dev *edev)
189{
190 return NULL;
191}
192#endif
193
194#endif
195