]>
git.proxmox.com Git - mirror_ubuntu-jammy-kernel.git/blob - include/linux/pm_opp.h
2 * Generic OPP Interface
4 * Copyright (C) 2009-2010 Texas Instruments Incorporated.
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
14 #ifndef __LINUX_OPP_H__
15 #define __LINUX_OPP_H__
17 #include <linux/err.h>
18 #include <linux/notifier.h>
26 enum dev_pm_opp_event
{
27 OPP_EVENT_ADD
, OPP_EVENT_REMOVE
, OPP_EVENT_ENABLE
, OPP_EVENT_DISABLE
,
31 * struct dev_pm_opp_supply - Power supply voltage/current values
32 * @u_volt: Target voltage in microvolts corresponding to this OPP
33 * @u_volt_min: Minimum voltage in microvolts corresponding to this OPP
34 * @u_volt_max: Maximum voltage in microvolts corresponding to this OPP
35 * @u_amp: Maximum current drawn by the device in microamperes
37 * This structure stores the voltage/current values for a single power supply.
39 struct dev_pm_opp_supply
{
41 unsigned long u_volt_min
;
42 unsigned long u_volt_max
;
47 * struct dev_pm_opp_info - OPP freq/voltage/current values
48 * @rate: Target clk rate in hz
49 * @supplies: Array of voltage/current values for all power supplies
51 * This structure stores the freq/voltage/current values for a single OPP.
53 struct dev_pm_opp_info
{
55 struct dev_pm_opp_supply
*supplies
;
59 * struct dev_pm_set_opp_data - Set OPP data
60 * @old_opp: Old OPP info
61 * @new_opp: New OPP info
62 * @regulators: Array of regulator pointers
63 * @regulator_count: Number of regulators
64 * @clk: Pointer to clk
65 * @dev: Pointer to the struct device
67 * This structure contains all information required for setting an OPP.
69 struct dev_pm_set_opp_data
{
70 struct dev_pm_opp_info old_opp
;
71 struct dev_pm_opp_info new_opp
;
73 struct regulator
**regulators
;
74 unsigned int regulator_count
;
79 #if defined(CONFIG_PM_OPP)
81 struct opp_table
*dev_pm_opp_get_opp_table(struct device
*dev
);
82 struct opp_table
*dev_pm_opp_get_opp_table_indexed(struct device
*dev
, int index
);
83 void dev_pm_opp_put_opp_table(struct opp_table
*opp_table
);
85 unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp
*opp
);
87 unsigned long dev_pm_opp_get_freq(struct dev_pm_opp
*opp
);
89 unsigned int dev_pm_opp_get_level(struct dev_pm_opp
*opp
);
91 bool dev_pm_opp_is_turbo(struct dev_pm_opp
*opp
);
93 int dev_pm_opp_get_opp_count(struct device
*dev
);
94 unsigned long dev_pm_opp_get_max_clock_latency(struct device
*dev
);
95 unsigned long dev_pm_opp_get_max_volt_latency(struct device
*dev
);
96 unsigned long dev_pm_opp_get_max_transition_latency(struct device
*dev
);
97 unsigned long dev_pm_opp_get_suspend_opp_freq(struct device
*dev
);
99 struct dev_pm_opp
*dev_pm_opp_find_freq_exact(struct device
*dev
,
103 struct dev_pm_opp
*dev_pm_opp_find_freq_floor(struct device
*dev
,
104 unsigned long *freq
);
105 struct dev_pm_opp
*dev_pm_opp_find_freq_ceil_by_volt(struct device
*dev
,
106 unsigned long u_volt
);
108 struct dev_pm_opp
*dev_pm_opp_find_freq_ceil(struct device
*dev
,
109 unsigned long *freq
);
110 void dev_pm_opp_put(struct dev_pm_opp
*opp
);
112 int dev_pm_opp_add(struct device
*dev
, unsigned long freq
,
113 unsigned long u_volt
);
114 void dev_pm_opp_remove(struct device
*dev
, unsigned long freq
);
115 void dev_pm_opp_remove_all_dynamic(struct device
*dev
);
117 int dev_pm_opp_enable(struct device
*dev
, unsigned long freq
);
119 int dev_pm_opp_disable(struct device
*dev
, unsigned long freq
);
121 int dev_pm_opp_register_notifier(struct device
*dev
, struct notifier_block
*nb
);
122 int dev_pm_opp_unregister_notifier(struct device
*dev
, struct notifier_block
*nb
);
124 struct opp_table
*dev_pm_opp_set_supported_hw(struct device
*dev
, const u32
*versions
, unsigned int count
);
125 void dev_pm_opp_put_supported_hw(struct opp_table
*opp_table
);
126 struct opp_table
*dev_pm_opp_set_prop_name(struct device
*dev
, const char *name
);
127 void dev_pm_opp_put_prop_name(struct opp_table
*opp_table
);
128 struct opp_table
*dev_pm_opp_set_regulators(struct device
*dev
, const char * const names
[], unsigned int count
);
129 void dev_pm_opp_put_regulators(struct opp_table
*opp_table
);
130 struct opp_table
*dev_pm_opp_set_clkname(struct device
*dev
, const char * name
);
131 void dev_pm_opp_put_clkname(struct opp_table
*opp_table
);
132 struct opp_table
*dev_pm_opp_register_set_opp_helper(struct device
*dev
, int (*set_opp
)(struct dev_pm_set_opp_data
*data
));
133 void dev_pm_opp_unregister_set_opp_helper(struct opp_table
*opp_table
);
134 struct opp_table
*dev_pm_opp_set_genpd_virt_dev(struct device
*dev
, struct device
*virt_dev
, int index
);
135 void dev_pm_opp_put_genpd_virt_dev(struct opp_table
*opp_table
, struct device
*virt_dev
);
136 int dev_pm_opp_xlate_performance_state(struct opp_table
*src_table
, struct opp_table
*dst_table
, unsigned int pstate
);
137 int dev_pm_opp_set_rate(struct device
*dev
, unsigned long target_freq
);
138 int dev_pm_opp_set_sharing_cpus(struct device
*cpu_dev
, const struct cpumask
*cpumask
);
139 int dev_pm_opp_get_sharing_cpus(struct device
*cpu_dev
, struct cpumask
*cpumask
);
140 void dev_pm_opp_remove_table(struct device
*dev
);
141 void dev_pm_opp_cpumask_remove_table(const struct cpumask
*cpumask
);
143 static inline struct opp_table
*dev_pm_opp_get_opp_table(struct device
*dev
)
145 return ERR_PTR(-ENOTSUPP
);
148 static inline struct opp_table
*dev_pm_opp_get_opp_table_indexed(struct device
*dev
, int index
)
150 return ERR_PTR(-ENOTSUPP
);
153 static inline void dev_pm_opp_put_opp_table(struct opp_table
*opp_table
) {}
155 static inline unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp
*opp
)
160 static inline unsigned long dev_pm_opp_get_freq(struct dev_pm_opp
*opp
)
165 static inline unsigned int dev_pm_opp_get_level(struct dev_pm_opp
*opp
)
170 static inline bool dev_pm_opp_is_turbo(struct dev_pm_opp
*opp
)
175 static inline int dev_pm_opp_get_opp_count(struct device
*dev
)
180 static inline unsigned long dev_pm_opp_get_max_clock_latency(struct device
*dev
)
185 static inline unsigned long dev_pm_opp_get_max_volt_latency(struct device
*dev
)
190 static inline unsigned long dev_pm_opp_get_max_transition_latency(struct device
*dev
)
195 static inline unsigned long dev_pm_opp_get_suspend_opp_freq(struct device
*dev
)
200 static inline struct dev_pm_opp
*dev_pm_opp_find_freq_exact(struct device
*dev
,
201 unsigned long freq
, bool available
)
203 return ERR_PTR(-ENOTSUPP
);
206 static inline struct dev_pm_opp
*dev_pm_opp_find_freq_floor(struct device
*dev
,
209 return ERR_PTR(-ENOTSUPP
);
212 static inline struct dev_pm_opp
*dev_pm_opp_find_freq_ceil_by_volt(struct device
*dev
,
213 unsigned long u_volt
)
215 return ERR_PTR(-ENOTSUPP
);
218 static inline struct dev_pm_opp
*dev_pm_opp_find_freq_ceil(struct device
*dev
,
221 return ERR_PTR(-ENOTSUPP
);
224 static inline void dev_pm_opp_put(struct dev_pm_opp
*opp
) {}
226 static inline int dev_pm_opp_add(struct device
*dev
, unsigned long freq
,
227 unsigned long u_volt
)
232 static inline void dev_pm_opp_remove(struct device
*dev
, unsigned long freq
)
236 static inline void dev_pm_opp_remove_all_dynamic(struct device
*dev
)
240 static inline int dev_pm_opp_enable(struct device
*dev
, unsigned long freq
)
245 static inline int dev_pm_opp_disable(struct device
*dev
, unsigned long freq
)
250 static inline int dev_pm_opp_register_notifier(struct device
*dev
, struct notifier_block
*nb
)
255 static inline int dev_pm_opp_unregister_notifier(struct device
*dev
, struct notifier_block
*nb
)
260 static inline struct opp_table
*dev_pm_opp_set_supported_hw(struct device
*dev
,
264 return ERR_PTR(-ENOTSUPP
);
267 static inline void dev_pm_opp_put_supported_hw(struct opp_table
*opp_table
) {}
269 static inline struct opp_table
*dev_pm_opp_register_set_opp_helper(struct device
*dev
,
270 int (*set_opp
)(struct dev_pm_set_opp_data
*data
))
272 return ERR_PTR(-ENOTSUPP
);
275 static inline void dev_pm_opp_unregister_set_opp_helper(struct opp_table
*opp_table
) {}
277 static inline struct opp_table
*dev_pm_opp_set_prop_name(struct device
*dev
, const char *name
)
279 return ERR_PTR(-ENOTSUPP
);
282 static inline void dev_pm_opp_put_prop_name(struct opp_table
*opp_table
) {}
284 static inline struct opp_table
*dev_pm_opp_set_regulators(struct device
*dev
, const char * const names
[], unsigned int count
)
286 return ERR_PTR(-ENOTSUPP
);
289 static inline void dev_pm_opp_put_regulators(struct opp_table
*opp_table
) {}
291 static inline struct opp_table
*dev_pm_opp_set_clkname(struct device
*dev
, const char * name
)
293 return ERR_PTR(-ENOTSUPP
);
296 static inline void dev_pm_opp_put_clkname(struct opp_table
*opp_table
) {}
298 static inline struct opp_table
*dev_pm_opp_set_genpd_virt_dev(struct device
*dev
, struct device
*virt_dev
, int index
)
300 return ERR_PTR(-ENOTSUPP
);
303 static inline void dev_pm_opp_put_genpd_virt_dev(struct opp_table
*opp_table
, struct device
*virt_dev
) {}
305 static inline int dev_pm_opp_xlate_performance_state(struct opp_table
*src_table
, struct opp_table
*dst_table
, unsigned int pstate
)
310 static inline int dev_pm_opp_set_rate(struct device
*dev
, unsigned long target_freq
)
315 static inline int dev_pm_opp_set_sharing_cpus(struct device
*cpu_dev
, const struct cpumask
*cpumask
)
320 static inline int dev_pm_opp_get_sharing_cpus(struct device
*cpu_dev
, struct cpumask
*cpumask
)
325 static inline void dev_pm_opp_remove_table(struct device
*dev
)
329 static inline void dev_pm_opp_cpumask_remove_table(const struct cpumask
*cpumask
)
333 #endif /* CONFIG_PM_OPP */
335 #if defined(CONFIG_PM_OPP) && defined(CONFIG_OF)
336 int dev_pm_opp_of_add_table(struct device
*dev
);
337 int dev_pm_opp_of_add_table_indexed(struct device
*dev
, int index
);
338 void dev_pm_opp_of_remove_table(struct device
*dev
);
339 int dev_pm_opp_of_cpumask_add_table(const struct cpumask
*cpumask
);
340 void dev_pm_opp_of_cpumask_remove_table(const struct cpumask
*cpumask
);
341 int dev_pm_opp_of_get_sharing_cpus(struct device
*cpu_dev
, struct cpumask
*cpumask
);
342 struct device_node
*dev_pm_opp_of_get_opp_desc_node(struct device
*dev
);
343 struct device_node
*dev_pm_opp_get_of_node(struct dev_pm_opp
*opp
);
344 int of_get_required_opp_performance_state(struct device_node
*np
, int index
);
345 void dev_pm_opp_of_register_em(struct cpumask
*cpus
);
347 static inline int dev_pm_opp_of_add_table(struct device
*dev
)
352 static inline int dev_pm_opp_of_add_table_indexed(struct device
*dev
, int index
)
357 static inline void dev_pm_opp_of_remove_table(struct device
*dev
)
361 static inline int dev_pm_opp_of_cpumask_add_table(const struct cpumask
*cpumask
)
366 static inline void dev_pm_opp_of_cpumask_remove_table(const struct cpumask
*cpumask
)
370 static inline int dev_pm_opp_of_get_sharing_cpus(struct device
*cpu_dev
, struct cpumask
*cpumask
)
375 static inline struct device_node
*dev_pm_opp_of_get_opp_desc_node(struct device
*dev
)
380 static inline struct device_node
*dev_pm_opp_get_of_node(struct dev_pm_opp
*opp
)
385 static inline void dev_pm_opp_of_register_em(struct cpumask
*cpus
)
389 static inline int of_get_required_opp_performance_state(struct device_node
*np
, int index
)
395 #endif /* __LINUX_OPP_H__ */