Nishanth Menon | e1f60b2 | 2010-10-13 00:13:10 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Generic OPP Interface |
| 3 | * |
| 4 | * Copyright (C) 2009-2010 Texas Instruments Incorporated. |
| 5 | * Nishanth Menon |
| 6 | * Romit Dasgupta |
| 7 | * Kevin Hilman |
| 8 | * |
| 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. |
| 12 | */ |
| 13 | |
| 14 | #ifndef __LINUX_OPP_H__ |
| 15 | #define __LINUX_OPP_H__ |
| 16 | |
| 17 | #include <linux/err.h> |
MyungJoo Ham | 03ca370 | 2011-09-30 22:35:12 +0200 | [diff] [blame] | 18 | #include <linux/notifier.h> |
Nishanth Menon | e1f60b2 | 2010-10-13 00:13:10 +0200 | [diff] [blame] | 19 | |
Nishanth Menon | 47d43ba | 2013-09-19 16:03:51 -0500 | [diff] [blame] | 20 | struct dev_pm_opp; |
Paul Gortmaker | 313162d | 2012-01-30 11:46:54 -0500 | [diff] [blame] | 21 | struct device; |
Nishanth Menon | e1f60b2 | 2010-10-13 00:13:10 +0200 | [diff] [blame] | 22 | |
Nishanth Menon | 47d43ba | 2013-09-19 16:03:51 -0500 | [diff] [blame] | 23 | enum dev_pm_opp_event { |
Viresh Kumar | 129eec5 | 2014-11-27 08:54:06 +0530 | [diff] [blame] | 24 | OPP_EVENT_ADD, OPP_EVENT_REMOVE, OPP_EVENT_ENABLE, OPP_EVENT_DISABLE, |
MyungJoo Ham | 03ca370 | 2011-09-30 22:35:12 +0200 | [diff] [blame] | 25 | }; |
| 26 | |
Nishanth Menon | e1f60b2 | 2010-10-13 00:13:10 +0200 | [diff] [blame] | 27 | #if defined(CONFIG_PM_OPP) |
| 28 | |
Nishanth Menon | 47d43ba | 2013-09-19 16:03:51 -0500 | [diff] [blame] | 29 | unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp); |
Nishanth Menon | e1f60b2 | 2010-10-13 00:13:10 +0200 | [diff] [blame] | 30 | |
Nishanth Menon | 47d43ba | 2013-09-19 16:03:51 -0500 | [diff] [blame] | 31 | unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp); |
Nishanth Menon | e1f60b2 | 2010-10-13 00:13:10 +0200 | [diff] [blame] | 32 | |
Bartlomiej Zolnierkiewicz | 19445b2 | 2015-07-09 17:43:35 +0200 | [diff] [blame] | 33 | bool dev_pm_opp_is_turbo(struct dev_pm_opp *opp); |
| 34 | |
Nishanth Menon | 5d4879c | 2013-09-19 16:03:50 -0500 | [diff] [blame] | 35 | int dev_pm_opp_get_opp_count(struct device *dev); |
Viresh Kumar | 3ca9bb3 | 2015-07-29 16:23:03 +0530 | [diff] [blame] | 36 | unsigned long dev_pm_opp_get_max_clock_latency(struct device *dev); |
Viresh Kumar | 655c9df | 2016-02-09 10:30:35 +0530 | [diff] [blame] | 37 | unsigned long dev_pm_opp_get_max_volt_latency(struct device *dev); |
Viresh Kumar | 2174344 | 2016-02-09 10:30:36 +0530 | [diff] [blame] | 38 | unsigned long dev_pm_opp_get_max_transition_latency(struct device *dev); |
Bartlomiej Zolnierkiewicz | 4eafbd1 | 2015-09-08 18:41:01 +0200 | [diff] [blame] | 39 | struct dev_pm_opp *dev_pm_opp_get_suspend_opp(struct device *dev); |
Nishanth Menon | e1f60b2 | 2010-10-13 00:13:10 +0200 | [diff] [blame] | 40 | |
Nishanth Menon | 47d43ba | 2013-09-19 16:03:51 -0500 | [diff] [blame] | 41 | struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev, |
| 42 | unsigned long freq, |
| 43 | bool available); |
Nishanth Menon | e1f60b2 | 2010-10-13 00:13:10 +0200 | [diff] [blame] | 44 | |
Nishanth Menon | 47d43ba | 2013-09-19 16:03:51 -0500 | [diff] [blame] | 45 | struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev, |
| 46 | unsigned long *freq); |
Nishanth Menon | e1f60b2 | 2010-10-13 00:13:10 +0200 | [diff] [blame] | 47 | |
Nishanth Menon | 47d43ba | 2013-09-19 16:03:51 -0500 | [diff] [blame] | 48 | struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev, |
| 49 | unsigned long *freq); |
Nishanth Menon | e1f60b2 | 2010-10-13 00:13:10 +0200 | [diff] [blame] | 50 | |
Nishanth Menon | 5d4879c | 2013-09-19 16:03:50 -0500 | [diff] [blame] | 51 | int dev_pm_opp_add(struct device *dev, unsigned long freq, |
| 52 | unsigned long u_volt); |
Viresh Kumar | 129eec5 | 2014-11-27 08:54:06 +0530 | [diff] [blame] | 53 | void dev_pm_opp_remove(struct device *dev, unsigned long freq); |
Nishanth Menon | e1f60b2 | 2010-10-13 00:13:10 +0200 | [diff] [blame] | 54 | |
Nishanth Menon | 5d4879c | 2013-09-19 16:03:50 -0500 | [diff] [blame] | 55 | int dev_pm_opp_enable(struct device *dev, unsigned long freq); |
Nishanth Menon | e1f60b2 | 2010-10-13 00:13:10 +0200 | [diff] [blame] | 56 | |
Nishanth Menon | 5d4879c | 2013-09-19 16:03:50 -0500 | [diff] [blame] | 57 | int dev_pm_opp_disable(struct device *dev, unsigned long freq); |
Nishanth Menon | e1f60b2 | 2010-10-13 00:13:10 +0200 | [diff] [blame] | 58 | |
Nishanth Menon | 5d4879c | 2013-09-19 16:03:50 -0500 | [diff] [blame] | 59 | struct srcu_notifier_head *dev_pm_opp_get_notifier(struct device *dev); |
Viresh Kumar | 7de36b0 | 2015-12-09 08:01:46 +0530 | [diff] [blame] | 60 | int dev_pm_opp_set_supported_hw(struct device *dev, const u32 *versions, |
| 61 | unsigned int count); |
| 62 | void dev_pm_opp_put_supported_hw(struct device *dev); |
Viresh Kumar | 01fb4d3 | 2015-12-09 08:01:47 +0530 | [diff] [blame] | 63 | int dev_pm_opp_set_prop_name(struct device *dev, const char *name); |
| 64 | void dev_pm_opp_put_prop_name(struct device *dev); |
Viresh Kumar | 9f8ea96 | 2016-02-09 10:30:33 +0530 | [diff] [blame] | 65 | int dev_pm_opp_set_regulator(struct device *dev, const char *name); |
| 66 | void dev_pm_opp_put_regulator(struct device *dev); |
Viresh Kumar | 6a0712f | 2016-02-09 10:30:39 +0530 | [diff] [blame] | 67 | int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq); |
Viresh Kumar | dde370b | 2016-04-27 08:52:22 +0530 | [diff] [blame] | 68 | int dev_pm_opp_set_sharing_cpus(struct device *cpu_dev, const cpumask_var_t cpumask); |
Viresh Kumar | 6f707da | 2016-04-27 08:52:23 +0530 | [diff] [blame^] | 69 | int dev_pm_opp_get_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask); |
Nishanth Menon | e1f60b2 | 2010-10-13 00:13:10 +0200 | [diff] [blame] | 70 | #else |
Nishanth Menon | 47d43ba | 2013-09-19 16:03:51 -0500 | [diff] [blame] | 71 | static inline unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp) |
Nishanth Menon | e1f60b2 | 2010-10-13 00:13:10 +0200 | [diff] [blame] | 72 | { |
| 73 | return 0; |
| 74 | } |
| 75 | |
Nishanth Menon | 47d43ba | 2013-09-19 16:03:51 -0500 | [diff] [blame] | 76 | static inline unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp) |
Nishanth Menon | e1f60b2 | 2010-10-13 00:13:10 +0200 | [diff] [blame] | 77 | { |
| 78 | return 0; |
| 79 | } |
| 80 | |
Bartlomiej Zolnierkiewicz | 19445b2 | 2015-07-09 17:43:35 +0200 | [diff] [blame] | 81 | static inline bool dev_pm_opp_is_turbo(struct dev_pm_opp *opp) |
| 82 | { |
| 83 | return false; |
| 84 | } |
| 85 | |
Nishanth Menon | 5d4879c | 2013-09-19 16:03:50 -0500 | [diff] [blame] | 86 | static inline int dev_pm_opp_get_opp_count(struct device *dev) |
Nishanth Menon | e1f60b2 | 2010-10-13 00:13:10 +0200 | [diff] [blame] | 87 | { |
| 88 | return 0; |
| 89 | } |
| 90 | |
Viresh Kumar | 3ca9bb3 | 2015-07-29 16:23:03 +0530 | [diff] [blame] | 91 | static inline unsigned long dev_pm_opp_get_max_clock_latency(struct device *dev) |
| 92 | { |
| 93 | return 0; |
| 94 | } |
| 95 | |
Viresh Kumar | 655c9df | 2016-02-09 10:30:35 +0530 | [diff] [blame] | 96 | static inline unsigned long dev_pm_opp_get_max_volt_latency(struct device *dev) |
| 97 | { |
| 98 | return 0; |
| 99 | } |
| 100 | |
Viresh Kumar | 2174344 | 2016-02-09 10:30:36 +0530 | [diff] [blame] | 101 | static inline unsigned long dev_pm_opp_get_max_transition_latency(struct device *dev) |
| 102 | { |
| 103 | return 0; |
| 104 | } |
| 105 | |
Bartlomiej Zolnierkiewicz | 4eafbd1 | 2015-09-08 18:41:01 +0200 | [diff] [blame] | 106 | static inline struct dev_pm_opp *dev_pm_opp_get_suspend_opp(struct device *dev) |
| 107 | { |
| 108 | return NULL; |
| 109 | } |
| 110 | |
Nishanth Menon | 47d43ba | 2013-09-19 16:03:51 -0500 | [diff] [blame] | 111 | static inline struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev, |
Nishanth Menon | e1f60b2 | 2010-10-13 00:13:10 +0200 | [diff] [blame] | 112 | unsigned long freq, bool available) |
| 113 | { |
Viresh Kumar | d708b38 | 2016-04-27 08:52:21 +0530 | [diff] [blame] | 114 | return ERR_PTR(-ENOTSUPP); |
Nishanth Menon | e1f60b2 | 2010-10-13 00:13:10 +0200 | [diff] [blame] | 115 | } |
| 116 | |
Nishanth Menon | 47d43ba | 2013-09-19 16:03:51 -0500 | [diff] [blame] | 117 | static inline struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev, |
Nishanth Menon | e1f60b2 | 2010-10-13 00:13:10 +0200 | [diff] [blame] | 118 | unsigned long *freq) |
| 119 | { |
Viresh Kumar | d708b38 | 2016-04-27 08:52:21 +0530 | [diff] [blame] | 120 | return ERR_PTR(-ENOTSUPP); |
Nishanth Menon | e1f60b2 | 2010-10-13 00:13:10 +0200 | [diff] [blame] | 121 | } |
| 122 | |
Nishanth Menon | 47d43ba | 2013-09-19 16:03:51 -0500 | [diff] [blame] | 123 | static inline struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev, |
Nishanth Menon | e1f60b2 | 2010-10-13 00:13:10 +0200 | [diff] [blame] | 124 | unsigned long *freq) |
| 125 | { |
Viresh Kumar | d708b38 | 2016-04-27 08:52:21 +0530 | [diff] [blame] | 126 | return ERR_PTR(-ENOTSUPP); |
Nishanth Menon | e1f60b2 | 2010-10-13 00:13:10 +0200 | [diff] [blame] | 127 | } |
| 128 | |
Nishanth Menon | 5d4879c | 2013-09-19 16:03:50 -0500 | [diff] [blame] | 129 | static inline int dev_pm_opp_add(struct device *dev, unsigned long freq, |
Nishanth Menon | e1f60b2 | 2010-10-13 00:13:10 +0200 | [diff] [blame] | 130 | unsigned long u_volt) |
| 131 | { |
Viresh Kumar | d708b38 | 2016-04-27 08:52:21 +0530 | [diff] [blame] | 132 | return -ENOTSUPP; |
Nishanth Menon | e1f60b2 | 2010-10-13 00:13:10 +0200 | [diff] [blame] | 133 | } |
| 134 | |
Viresh Kumar | 129eec5 | 2014-11-27 08:54:06 +0530 | [diff] [blame] | 135 | static inline void dev_pm_opp_remove(struct device *dev, unsigned long freq) |
| 136 | { |
| 137 | } |
| 138 | |
Nishanth Menon | 5d4879c | 2013-09-19 16:03:50 -0500 | [diff] [blame] | 139 | static inline int dev_pm_opp_enable(struct device *dev, unsigned long freq) |
Nishanth Menon | e1f60b2 | 2010-10-13 00:13:10 +0200 | [diff] [blame] | 140 | { |
| 141 | return 0; |
| 142 | } |
| 143 | |
Nishanth Menon | 5d4879c | 2013-09-19 16:03:50 -0500 | [diff] [blame] | 144 | static inline int dev_pm_opp_disable(struct device *dev, unsigned long freq) |
Nishanth Menon | e1f60b2 | 2010-10-13 00:13:10 +0200 | [diff] [blame] | 145 | { |
| 146 | return 0; |
| 147 | } |
MyungJoo Ham | 03ca370 | 2011-09-30 22:35:12 +0200 | [diff] [blame] | 148 | |
Nishanth Menon | 5d4879c | 2013-09-19 16:03:50 -0500 | [diff] [blame] | 149 | static inline struct srcu_notifier_head *dev_pm_opp_get_notifier( |
| 150 | struct device *dev) |
MyungJoo Ham | 03ca370 | 2011-09-30 22:35:12 +0200 | [diff] [blame] | 151 | { |
Viresh Kumar | d708b38 | 2016-04-27 08:52:21 +0530 | [diff] [blame] | 152 | return ERR_PTR(-ENOTSUPP); |
MyungJoo Ham | 03ca370 | 2011-09-30 22:35:12 +0200 | [diff] [blame] | 153 | } |
Viresh Kumar | 7de36b0 | 2015-12-09 08:01:46 +0530 | [diff] [blame] | 154 | |
| 155 | static inline int dev_pm_opp_set_supported_hw(struct device *dev, |
| 156 | const u32 *versions, |
| 157 | unsigned int count) |
| 158 | { |
Viresh Kumar | d708b38 | 2016-04-27 08:52:21 +0530 | [diff] [blame] | 159 | return -ENOTSUPP; |
Viresh Kumar | 7de36b0 | 2015-12-09 08:01:46 +0530 | [diff] [blame] | 160 | } |
| 161 | |
| 162 | static inline void dev_pm_opp_put_supported_hw(struct device *dev) {} |
| 163 | |
Viresh Kumar | 01fb4d3 | 2015-12-09 08:01:47 +0530 | [diff] [blame] | 164 | static inline int dev_pm_opp_set_prop_name(struct device *dev, const char *name) |
| 165 | { |
Viresh Kumar | d708b38 | 2016-04-27 08:52:21 +0530 | [diff] [blame] | 166 | return -ENOTSUPP; |
Viresh Kumar | 01fb4d3 | 2015-12-09 08:01:47 +0530 | [diff] [blame] | 167 | } |
| 168 | |
| 169 | static inline void dev_pm_opp_put_prop_name(struct device *dev) {} |
| 170 | |
Viresh Kumar | 9f8ea96 | 2016-02-09 10:30:33 +0530 | [diff] [blame] | 171 | static inline int dev_pm_opp_set_regulator(struct device *dev, const char *name) |
| 172 | { |
Viresh Kumar | d708b38 | 2016-04-27 08:52:21 +0530 | [diff] [blame] | 173 | return -ENOTSUPP; |
Viresh Kumar | 9f8ea96 | 2016-02-09 10:30:33 +0530 | [diff] [blame] | 174 | } |
| 175 | |
| 176 | static inline void dev_pm_opp_put_regulator(struct device *dev) {} |
| 177 | |
Viresh Kumar | 6a0712f | 2016-02-09 10:30:39 +0530 | [diff] [blame] | 178 | static inline int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq) |
| 179 | { |
Viresh Kumar | d708b38 | 2016-04-27 08:52:21 +0530 | [diff] [blame] | 180 | return -ENOTSUPP; |
Viresh Kumar | 6a0712f | 2016-02-09 10:30:39 +0530 | [diff] [blame] | 181 | } |
| 182 | |
Viresh Kumar | dde370b | 2016-04-27 08:52:22 +0530 | [diff] [blame] | 183 | static inline int dev_pm_opp_set_sharing_cpus(struct device *cpu_dev, const cpumask_var_t cpumask) |
Viresh Kumar | 642aa8c | 2016-04-21 14:28:55 +0530 | [diff] [blame] | 184 | { |
Viresh Kumar | d708b38 | 2016-04-27 08:52:21 +0530 | [diff] [blame] | 185 | return -ENOTSUPP; |
Viresh Kumar | 642aa8c | 2016-04-21 14:28:55 +0530 | [diff] [blame] | 186 | } |
| 187 | |
Viresh Kumar | 6f707da | 2016-04-27 08:52:23 +0530 | [diff] [blame^] | 188 | static inline int dev_pm_opp_get_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask) |
| 189 | { |
| 190 | return -EINVAL; |
| 191 | } |
| 192 | |
Tony Lindgren | a96d69d | 2011-11-03 10:12:27 +0100 | [diff] [blame] | 193 | #endif /* CONFIG_PM_OPP */ |
Nishanth Menon | e1f60b2 | 2010-10-13 00:13:10 +0200 | [diff] [blame] | 194 | |
Shawn Guo | d6561bb | 2013-02-21 11:04:45 +0000 | [diff] [blame] | 195 | #if defined(CONFIG_PM_OPP) && defined(CONFIG_OF) |
Viresh Kumar | 8f8d37b | 2015-09-04 13:47:24 +0530 | [diff] [blame] | 196 | int dev_pm_opp_of_add_table(struct device *dev); |
| 197 | void dev_pm_opp_of_remove_table(struct device *dev); |
| 198 | int dev_pm_opp_of_cpumask_add_table(cpumask_var_t cpumask); |
| 199 | void dev_pm_opp_of_cpumask_remove_table(cpumask_var_t cpumask); |
| 200 | int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask); |
Shawn Guo | d6561bb | 2013-02-21 11:04:45 +0000 | [diff] [blame] | 201 | #else |
Viresh Kumar | 8f8d37b | 2015-09-04 13:47:24 +0530 | [diff] [blame] | 202 | static inline int dev_pm_opp_of_add_table(struct device *dev) |
Shawn Guo | d6561bb | 2013-02-21 11:04:45 +0000 | [diff] [blame] | 203 | { |
Viresh Kumar | d708b38 | 2016-04-27 08:52:21 +0530 | [diff] [blame] | 204 | return -ENOTSUPP; |
Shawn Guo | d6561bb | 2013-02-21 11:04:45 +0000 | [diff] [blame] | 205 | } |
Viresh Kumar | 129eec5 | 2014-11-27 08:54:06 +0530 | [diff] [blame] | 206 | |
Viresh Kumar | 8f8d37b | 2015-09-04 13:47:24 +0530 | [diff] [blame] | 207 | static inline void dev_pm_opp_of_remove_table(struct device *dev) |
Viresh Kumar | 129eec5 | 2014-11-27 08:54:06 +0530 | [diff] [blame] | 208 | { |
| 209 | } |
Viresh Kumar | 8d4d4e9 | 2015-06-12 17:10:38 +0530 | [diff] [blame] | 210 | |
Viresh Kumar | 8f8d37b | 2015-09-04 13:47:24 +0530 | [diff] [blame] | 211 | static inline int dev_pm_opp_of_cpumask_add_table(cpumask_var_t cpumask) |
Viresh Kumar | 8d4d4e9 | 2015-06-12 17:10:38 +0530 | [diff] [blame] | 212 | { |
Viresh Kumar | d708b38 | 2016-04-27 08:52:21 +0530 | [diff] [blame] | 213 | return -ENOTSUPP; |
Viresh Kumar | 8d4d4e9 | 2015-06-12 17:10:38 +0530 | [diff] [blame] | 214 | } |
| 215 | |
Viresh Kumar | 8f8d37b | 2015-09-04 13:47:24 +0530 | [diff] [blame] | 216 | static inline void dev_pm_opp_of_cpumask_remove_table(cpumask_var_t cpumask) |
Viresh Kumar | 8d4d4e9 | 2015-06-12 17:10:38 +0530 | [diff] [blame] | 217 | { |
| 218 | } |
| 219 | |
Viresh Kumar | 8f8d37b | 2015-09-04 13:47:24 +0530 | [diff] [blame] | 220 | static inline int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask) |
Viresh Kumar | 8d4d4e9 | 2015-06-12 17:10:38 +0530 | [diff] [blame] | 221 | { |
Viresh Kumar | d708b38 | 2016-04-27 08:52:21 +0530 | [diff] [blame] | 222 | return -ENOTSUPP; |
Viresh Kumar | 8d4d4e9 | 2015-06-12 17:10:38 +0530 | [diff] [blame] | 223 | } |
Shawn Guo | d6561bb | 2013-02-21 11:04:45 +0000 | [diff] [blame] | 224 | #endif |
| 225 | |
Nishanth Menon | e1f60b2 | 2010-10-13 00:13:10 +0200 | [diff] [blame] | 226 | #endif /* __LINUX_OPP_H__ */ |