Rafael J. Wysocki | f721889 | 2011-07-01 22:12:45 +0200 | [diff] [blame] | 1 | /* |
| 2 | * pm_domain.h - Definitions and headers related to device power domains. |
| 3 | * |
| 4 | * Copyright (C) 2011 Rafael J. Wysocki <rjw@sisk.pl>, Renesas Electronics Corp. |
| 5 | * |
| 6 | * This file is released under the GPLv2. |
| 7 | */ |
| 8 | |
| 9 | #ifndef _LINUX_PM_DOMAIN_H |
| 10 | #define _LINUX_PM_DOMAIN_H |
| 11 | |
| 12 | #include <linux/device.h> |
Paul Gortmaker | 313162d | 2012-01-30 11:46:54 -0500 | [diff] [blame] | 13 | #include <linux/mutex.h> |
| 14 | #include <linux/pm.h> |
Guennadi Liakhovetski | 4f042cd | 2011-12-01 00:05:31 +0100 | [diff] [blame] | 15 | #include <linux/err.h> |
Thomas Abraham | c8aa130 | 2012-01-27 15:22:07 +0900 | [diff] [blame] | 16 | #include <linux/of.h> |
Rafael J. Wysocki | 6ff7bb0d0 | 2012-05-01 21:34:07 +0200 | [diff] [blame] | 17 | #include <linux/notifier.h> |
Rafael J. Wysocki | cbc9ef0 | 2012-07-03 19:07:42 +0200 | [diff] [blame] | 18 | #include <linux/cpuidle.h> |
Rafael J. Wysocki | f721889 | 2011-07-01 22:12:45 +0200 | [diff] [blame] | 19 | |
Rafael J. Wysocki | 17b75ec | 2011-07-12 00:39:29 +0200 | [diff] [blame] | 20 | enum gpd_status { |
| 21 | GPD_STATE_ACTIVE = 0, /* PM domain is active */ |
Rafael J. Wysocki | 17877eb | 2011-08-08 23:43:50 +0200 | [diff] [blame] | 22 | GPD_STATE_WAIT_MASTER, /* PM domain's master is being waited for */ |
Rafael J. Wysocki | 17b75ec | 2011-07-12 00:39:29 +0200 | [diff] [blame] | 23 | GPD_STATE_BUSY, /* Something is happening to the PM domain */ |
Rafael J. Wysocki | c6d22b3 | 2011-07-12 00:39:36 +0200 | [diff] [blame] | 24 | GPD_STATE_REPEAT, /* Power off in progress, to be repeated */ |
Rafael J. Wysocki | 17b75ec | 2011-07-12 00:39:29 +0200 | [diff] [blame] | 25 | GPD_STATE_POWER_OFF, /* PM domain is off */ |
| 26 | }; |
Rafael J. Wysocki | 596ba34 | 2011-07-01 22:13:19 +0200 | [diff] [blame] | 27 | |
Rafael J. Wysocki | f721889 | 2011-07-01 22:12:45 +0200 | [diff] [blame] | 28 | struct dev_power_governor { |
| 29 | bool (*power_down_ok)(struct dev_pm_domain *domain); |
Rafael J. Wysocki | b02c999 | 2011-12-01 00:02:05 +0100 | [diff] [blame] | 30 | bool (*stop_ok)(struct device *dev); |
Rafael J. Wysocki | f721889 | 2011-07-01 22:12:45 +0200 | [diff] [blame] | 31 | }; |
| 32 | |
Rafael J. Wysocki | d5e4cbf | 2011-11-27 13:11:36 +0100 | [diff] [blame] | 33 | struct gpd_dev_ops { |
| 34 | int (*start)(struct device *dev); |
| 35 | int (*stop)(struct device *dev); |
Rafael J. Wysocki | ecf0047 | 2011-11-27 13:11:44 +0100 | [diff] [blame] | 36 | int (*save_state)(struct device *dev); |
| 37 | int (*restore_state)(struct device *dev); |
Rafael J. Wysocki | d5e4cbf | 2011-11-27 13:11:36 +0100 | [diff] [blame] | 38 | bool (*active_wakeup)(struct device *dev); |
| 39 | }; |
| 40 | |
Ulf Hansson | f39cb17 | 2014-10-02 21:12:34 +0200 | [diff] [blame] | 41 | struct gpd_cpuidle_data { |
Rafael J. Wysocki | cbc9ef0 | 2012-07-03 19:07:42 +0200 | [diff] [blame] | 42 | unsigned int saved_exit_latency; |
| 43 | struct cpuidle_state *idle_state; |
| 44 | }; |
| 45 | |
Rafael J. Wysocki | f721889 | 2011-07-01 22:12:45 +0200 | [diff] [blame] | 46 | struct generic_pm_domain { |
| 47 | struct dev_pm_domain domain; /* PM domain operations */ |
Rafael J. Wysocki | 5125bbf | 2011-07-13 12:31:52 +0200 | [diff] [blame] | 48 | struct list_head gpd_list_node; /* Node in the global PM domains list */ |
Rafael J. Wysocki | 5063ce1 | 2011-08-08 23:43:40 +0200 | [diff] [blame] | 49 | struct list_head master_links; /* Links with PM domain as a master */ |
| 50 | struct list_head slave_links; /* Links with PM domain as a slave */ |
Rafael J. Wysocki | f721889 | 2011-07-01 22:12:45 +0200 | [diff] [blame] | 51 | struct list_head dev_list; /* List of devices */ |
| 52 | struct mutex lock; |
| 53 | struct dev_power_governor *gov; |
| 54 | struct work_struct power_off_work; |
Geert Uytterhoeven | d07e9c1 | 2014-08-29 15:13:21 +0200 | [diff] [blame] | 55 | const char *name; |
Rafael J. Wysocki | f721889 | 2011-07-01 22:12:45 +0200 | [diff] [blame] | 56 | unsigned int in_progress; /* Number of devices being suspended now */ |
Rafael J. Wysocki | c4bb316 | 2011-08-08 23:43:04 +0200 | [diff] [blame] | 57 | atomic_t sd_count; /* Number of subdomains with power "on" */ |
Rafael J. Wysocki | 17b75ec | 2011-07-12 00:39:29 +0200 | [diff] [blame] | 58 | enum gpd_status status; /* Current state of the domain */ |
| 59 | wait_queue_head_t status_wait_queue; |
Rafael J. Wysocki | c6d22b3 | 2011-07-12 00:39:36 +0200 | [diff] [blame] | 60 | struct task_struct *poweroff_task; /* Powering off task */ |
| 61 | unsigned int resume_count; /* Number of devices being resumed */ |
Rafael J. Wysocki | 596ba34 | 2011-07-01 22:13:19 +0200 | [diff] [blame] | 62 | unsigned int device_count; /* Number of devices */ |
| 63 | unsigned int suspended_count; /* System suspend device counter */ |
| 64 | unsigned int prepared_count; /* Suspend counter of prepared devices */ |
| 65 | bool suspend_power_off; /* Power status before system suspend */ |
Rafael J. Wysocki | f721889 | 2011-07-01 22:12:45 +0200 | [diff] [blame] | 66 | int (*power_off)(struct generic_pm_domain *domain); |
Rafael J. Wysocki | 221e9b5 | 2011-12-01 00:02:10 +0100 | [diff] [blame] | 67 | s64 power_off_latency_ns; |
Rafael J. Wysocki | f721889 | 2011-07-01 22:12:45 +0200 | [diff] [blame] | 68 | int (*power_on)(struct generic_pm_domain *domain); |
Rafael J. Wysocki | 221e9b5 | 2011-12-01 00:02:10 +0100 | [diff] [blame] | 69 | s64 power_on_latency_ns; |
Rafael J. Wysocki | d5e4cbf | 2011-11-27 13:11:36 +0100 | [diff] [blame] | 70 | struct gpd_dev_ops dev_ops; |
Rafael J. Wysocki | 221e9b5 | 2011-12-01 00:02:10 +0100 | [diff] [blame] | 71 | s64 max_off_time_ns; /* Maximum allowed "suspended" time. */ |
Rafael J. Wysocki | 6ff7bb0d0 | 2012-05-01 21:34:07 +0200 | [diff] [blame] | 72 | bool max_off_time_changed; |
| 73 | bool cached_power_down_ok; |
Ulf Hansson | f39cb17 | 2014-10-02 21:12:34 +0200 | [diff] [blame] | 74 | struct gpd_cpuidle_data *cpuidle_data; |
Ulf Hansson | c16561e | 2014-11-06 00:37:08 +0100 | [diff] [blame^] | 75 | int (*attach_dev)(struct generic_pm_domain *domain, |
| 76 | struct device *dev); |
| 77 | void (*detach_dev)(struct generic_pm_domain *domain, |
| 78 | struct device *dev); |
Rafael J. Wysocki | f721889 | 2011-07-01 22:12:45 +0200 | [diff] [blame] | 79 | }; |
| 80 | |
Rafael J. Wysocki | 596ba34 | 2011-07-01 22:13:19 +0200 | [diff] [blame] | 81 | static inline struct generic_pm_domain *pd_to_genpd(struct dev_pm_domain *pd) |
| 82 | { |
| 83 | return container_of(pd, struct generic_pm_domain, domain); |
| 84 | } |
| 85 | |
Rafael J. Wysocki | 5063ce1 | 2011-08-08 23:43:40 +0200 | [diff] [blame] | 86 | struct gpd_link { |
| 87 | struct generic_pm_domain *master; |
| 88 | struct list_head master_node; |
| 89 | struct generic_pm_domain *slave; |
| 90 | struct list_head slave_node; |
| 91 | }; |
| 92 | |
Rafael J. Wysocki | b02c999 | 2011-12-01 00:02:05 +0100 | [diff] [blame] | 93 | struct gpd_timing_data { |
| 94 | s64 stop_latency_ns; |
| 95 | s64 start_latency_ns; |
Rafael J. Wysocki | 221e9b5 | 2011-12-01 00:02:10 +0100 | [diff] [blame] | 96 | s64 save_state_latency_ns; |
| 97 | s64 restore_state_latency_ns; |
Rafael J. Wysocki | a5bef810 | 2012-04-29 22:54:17 +0200 | [diff] [blame] | 98 | s64 effective_constraint_ns; |
Rafael J. Wysocki | 6ff7bb0d0 | 2012-05-01 21:34:07 +0200 | [diff] [blame] | 99 | bool constraint_changed; |
| 100 | bool cached_stop_ok; |
Rafael J. Wysocki | b02c999 | 2011-12-01 00:02:05 +0100 | [diff] [blame] | 101 | }; |
| 102 | |
Rafael J. Wysocki | cd0ea67 | 2011-09-26 20:22:02 +0200 | [diff] [blame] | 103 | struct generic_pm_domain_data { |
| 104 | struct pm_domain_data base; |
Rafael J. Wysocki | b02c999 | 2011-12-01 00:02:05 +0100 | [diff] [blame] | 105 | struct gpd_timing_data td; |
Rafael J. Wysocki | 6ff7bb0d0 | 2012-05-01 21:34:07 +0200 | [diff] [blame] | 106 | struct notifier_block nb; |
| 107 | struct mutex lock; |
Rafael J. Wysocki | 1d5fcfe | 2012-07-05 22:12:32 +0200 | [diff] [blame] | 108 | unsigned int refcount; |
Rafael J. Wysocki | cd0ea67 | 2011-09-26 20:22:02 +0200 | [diff] [blame] | 109 | bool need_restore; |
| 110 | }; |
| 111 | |
Guennadi Liakhovetski | 9b4f617 | 2012-02-04 22:26:49 +0100 | [diff] [blame] | 112 | #ifdef CONFIG_PM_GENERIC_DOMAINS |
Rafael J. Wysocki | cd0ea67 | 2011-09-26 20:22:02 +0200 | [diff] [blame] | 113 | static inline struct generic_pm_domain_data *to_gpd_data(struct pm_domain_data *pdd) |
| 114 | { |
| 115 | return container_of(pdd, struct generic_pm_domain_data, base); |
| 116 | } |
| 117 | |
Rafael J. Wysocki | d5e4cbf | 2011-11-27 13:11:36 +0100 | [diff] [blame] | 118 | static inline struct generic_pm_domain_data *dev_gpd_data(struct device *dev) |
| 119 | { |
| 120 | return to_gpd_data(dev->power.subsys_data->domain_data); |
| 121 | } |
| 122 | |
Rafael J. Wysocki | b02c999 | 2011-12-01 00:02:05 +0100 | [diff] [blame] | 123 | extern struct generic_pm_domain *dev_to_genpd(struct device *dev); |
| 124 | extern int __pm_genpd_add_device(struct generic_pm_domain *genpd, |
| 125 | struct device *dev, |
| 126 | struct gpd_timing_data *td); |
| 127 | |
Rafael J. Wysocki | b5abb08 | 2012-08-07 01:06:11 +0200 | [diff] [blame] | 128 | extern int __pm_genpd_name_add_device(const char *domain_name, |
| 129 | struct device *dev, |
| 130 | struct gpd_timing_data *td); |
Thomas Abraham | c8aa130 | 2012-01-27 15:22:07 +0900 | [diff] [blame] | 131 | |
Rafael J. Wysocki | f721889 | 2011-07-01 22:12:45 +0200 | [diff] [blame] | 132 | extern int pm_genpd_remove_device(struct generic_pm_domain *genpd, |
| 133 | struct device *dev); |
Rafael J. Wysocki | ca1d72f | 2012-05-14 21:45:52 +0200 | [diff] [blame] | 134 | extern void pm_genpd_dev_need_restore(struct device *dev, bool val); |
Rafael J. Wysocki | f721889 | 2011-07-01 22:12:45 +0200 | [diff] [blame] | 135 | extern int pm_genpd_add_subdomain(struct generic_pm_domain *genpd, |
| 136 | struct generic_pm_domain *new_subdomain); |
Rafael J. Wysocki | fb7268b | 2012-08-07 01:08:37 +0200 | [diff] [blame] | 137 | extern int pm_genpd_add_subdomain_names(const char *master_name, |
| 138 | const char *subdomain_name); |
Rafael J. Wysocki | f721889 | 2011-07-01 22:12:45 +0200 | [diff] [blame] | 139 | extern int pm_genpd_remove_subdomain(struct generic_pm_domain *genpd, |
| 140 | struct generic_pm_domain *target); |
Rafael J. Wysocki | 4011444 | 2012-08-15 20:32:43 +0200 | [diff] [blame] | 141 | extern int pm_genpd_attach_cpuidle(struct generic_pm_domain *genpd, int state); |
Rafael J. Wysocki | 74a2799a | 2012-08-15 20:32:59 +0200 | [diff] [blame] | 142 | extern int pm_genpd_name_attach_cpuidle(const char *name, int state); |
Rafael J. Wysocki | 4011444 | 2012-08-15 20:32:43 +0200 | [diff] [blame] | 143 | extern int pm_genpd_detach_cpuidle(struct generic_pm_domain *genpd); |
Rafael J. Wysocki | 74a2799a | 2012-08-15 20:32:59 +0200 | [diff] [blame] | 144 | extern int pm_genpd_name_detach_cpuidle(const char *name); |
Rafael J. Wysocki | f721889 | 2011-07-01 22:12:45 +0200 | [diff] [blame] | 145 | extern void pm_genpd_init(struct generic_pm_domain *genpd, |
| 146 | struct dev_power_governor *gov, bool is_off); |
Rafael J. Wysocki | b02c999 | 2011-12-01 00:02:05 +0100 | [diff] [blame] | 147 | |
Magnus Damm | 18b4f3f | 2011-07-10 10:39:14 +0200 | [diff] [blame] | 148 | extern int pm_genpd_poweron(struct generic_pm_domain *genpd); |
Rafael J. Wysocki | 8bc0251 | 2012-08-07 01:11:14 +0200 | [diff] [blame] | 149 | extern int pm_genpd_name_poweron(const char *domain_name); |
Rafael J. Wysocki | b02c999 | 2011-12-01 00:02:05 +0100 | [diff] [blame] | 150 | |
Ulf Hansson | ae3c511 | 2014-09-03 12:52:31 +0200 | [diff] [blame] | 151 | extern struct dev_power_governor simple_qos_governor; |
Mark Brown | 925b44a | 2011-12-08 23:27:28 +0100 | [diff] [blame] | 152 | extern struct dev_power_governor pm_domain_always_on_gov; |
Rafael J. Wysocki | f721889 | 2011-07-01 22:12:45 +0200 | [diff] [blame] | 153 | #else |
Rafael J. Wysocki | b02c999 | 2011-12-01 00:02:05 +0100 | [diff] [blame] | 154 | |
Magnus Damm | b642631 | 2012-02-25 22:14:18 +0100 | [diff] [blame] | 155 | static inline struct generic_pm_domain_data *dev_gpd_data(struct device *dev) |
| 156 | { |
| 157 | return ERR_PTR(-ENOSYS); |
| 158 | } |
Rafael J. Wysocki | b02c999 | 2011-12-01 00:02:05 +0100 | [diff] [blame] | 159 | static inline struct generic_pm_domain *dev_to_genpd(struct device *dev) |
| 160 | { |
| 161 | return ERR_PTR(-ENOSYS); |
| 162 | } |
| 163 | static inline int __pm_genpd_add_device(struct generic_pm_domain *genpd, |
| 164 | struct device *dev, |
| 165 | struct gpd_timing_data *td) |
| 166 | { |
| 167 | return -ENOSYS; |
| 168 | } |
Rafael J. Wysocki | b5abb08 | 2012-08-07 01:06:11 +0200 | [diff] [blame] | 169 | static inline int __pm_genpd_name_add_device(const char *domain_name, |
| 170 | struct device *dev, |
| 171 | struct gpd_timing_data *td) |
Rafael J. Wysocki | f721889 | 2011-07-01 22:12:45 +0200 | [diff] [blame] | 172 | { |
| 173 | return -ENOSYS; |
| 174 | } |
| 175 | static inline int pm_genpd_remove_device(struct generic_pm_domain *genpd, |
| 176 | struct device *dev) |
| 177 | { |
| 178 | return -ENOSYS; |
| 179 | } |
Rafael J. Wysocki | ca1d72f | 2012-05-14 21:45:52 +0200 | [diff] [blame] | 180 | static inline void pm_genpd_dev_need_restore(struct device *dev, bool val) {} |
Rafael J. Wysocki | f721889 | 2011-07-01 22:12:45 +0200 | [diff] [blame] | 181 | static inline int pm_genpd_add_subdomain(struct generic_pm_domain *genpd, |
| 182 | struct generic_pm_domain *new_sd) |
| 183 | { |
| 184 | return -ENOSYS; |
| 185 | } |
Rafael J. Wysocki | fb7268b | 2012-08-07 01:08:37 +0200 | [diff] [blame] | 186 | static inline int pm_genpd_add_subdomain_names(const char *master_name, |
| 187 | const char *subdomain_name) |
| 188 | { |
| 189 | return -ENOSYS; |
| 190 | } |
Rafael J. Wysocki | f721889 | 2011-07-01 22:12:45 +0200 | [diff] [blame] | 191 | static inline int pm_genpd_remove_subdomain(struct generic_pm_domain *genpd, |
| 192 | struct generic_pm_domain *target) |
| 193 | { |
| 194 | return -ENOSYS; |
| 195 | } |
Rafael J. Wysocki | 4011444 | 2012-08-15 20:32:43 +0200 | [diff] [blame] | 196 | static inline int pm_genpd_attach_cpuidle(struct generic_pm_domain *genpd, int st) |
Rafael J. Wysocki | cbc9ef0 | 2012-07-03 19:07:42 +0200 | [diff] [blame] | 197 | { |
| 198 | return -ENOSYS; |
| 199 | } |
Rafael J. Wysocki | 74a2799a | 2012-08-15 20:32:59 +0200 | [diff] [blame] | 200 | static inline int pm_genpd_name_attach_cpuidle(const char *name, int state) |
| 201 | { |
| 202 | return -ENOSYS; |
| 203 | } |
Rafael J. Wysocki | 4011444 | 2012-08-15 20:32:43 +0200 | [diff] [blame] | 204 | static inline int pm_genpd_detach_cpuidle(struct generic_pm_domain *genpd) |
Rafael J. Wysocki | cbc9ef0 | 2012-07-03 19:07:42 +0200 | [diff] [blame] | 205 | { |
| 206 | return -ENOSYS; |
| 207 | } |
Rafael J. Wysocki | 74a2799a | 2012-08-15 20:32:59 +0200 | [diff] [blame] | 208 | static inline int pm_genpd_name_detach_cpuidle(const char *name) |
| 209 | { |
| 210 | return -ENOSYS; |
| 211 | } |
Magnus Damm | b642631 | 2012-02-25 22:14:18 +0100 | [diff] [blame] | 212 | static inline void pm_genpd_init(struct generic_pm_domain *genpd, |
| 213 | struct dev_power_governor *gov, bool is_off) |
Rafael J. Wysocki | b02c999 | 2011-12-01 00:02:05 +0100 | [diff] [blame] | 214 | { |
| 215 | } |
Magnus Damm | 18b4f3f | 2011-07-10 10:39:14 +0200 | [diff] [blame] | 216 | static inline int pm_genpd_poweron(struct generic_pm_domain *genpd) |
| 217 | { |
| 218 | return -ENOSYS; |
| 219 | } |
Rafael J. Wysocki | 8bc0251 | 2012-08-07 01:11:14 +0200 | [diff] [blame] | 220 | static inline int pm_genpd_name_poweron(const char *domain_name) |
| 221 | { |
| 222 | return -ENOSYS; |
| 223 | } |
Magnus Damm | b642631 | 2012-02-25 22:14:18 +0100 | [diff] [blame] | 224 | #define simple_qos_governor NULL |
Mark Brown | 925b44a | 2011-12-08 23:27:28 +0100 | [diff] [blame] | 225 | #define pm_domain_always_on_gov NULL |
Rafael J. Wysocki | 17f2ae7 | 2011-08-14 13:34:31 +0200 | [diff] [blame] | 226 | #endif |
| 227 | |
Rafael J. Wysocki | b5abb08 | 2012-08-07 01:06:11 +0200 | [diff] [blame] | 228 | static inline int pm_genpd_add_device(struct generic_pm_domain *genpd, |
| 229 | struct device *dev) |
| 230 | { |
| 231 | return __pm_genpd_add_device(genpd, dev, NULL); |
| 232 | } |
| 233 | |
Rafael J. Wysocki | b5abb08 | 2012-08-07 01:06:11 +0200 | [diff] [blame] | 234 | static inline int pm_genpd_name_add_device(const char *domain_name, |
| 235 | struct device *dev) |
| 236 | { |
| 237 | return __pm_genpd_name_add_device(domain_name, dev, NULL); |
| 238 | } |
| 239 | |
Rafael J. Wysocki | 17f2ae7 | 2011-08-14 13:34:31 +0200 | [diff] [blame] | 240 | #ifdef CONFIG_PM_GENERIC_DOMAINS_RUNTIME |
Rafael J. Wysocki | 17f2ae7 | 2011-08-14 13:34:31 +0200 | [diff] [blame] | 241 | extern void pm_genpd_poweroff_unused(void); |
| 242 | #else |
Rafael J. Wysocki | 17f2ae7 | 2011-08-14 13:34:31 +0200 | [diff] [blame] | 243 | static inline void pm_genpd_poweroff_unused(void) {} |
Rafael J. Wysocki | f721889 | 2011-07-01 22:12:45 +0200 | [diff] [blame] | 244 | #endif |
| 245 | |
Rafael J. Wysocki | 77f827d | 2012-08-06 01:39:57 +0200 | [diff] [blame] | 246 | #ifdef CONFIG_PM_GENERIC_DOMAINS_SLEEP |
Ulf Hansson | d47e646 | 2014-09-03 12:52:24 +0200 | [diff] [blame] | 247 | extern void pm_genpd_syscore_poweroff(struct device *dev); |
| 248 | extern void pm_genpd_syscore_poweron(struct device *dev); |
Rafael J. Wysocki | 77f827d | 2012-08-06 01:39:57 +0200 | [diff] [blame] | 249 | #else |
Ulf Hansson | d47e646 | 2014-09-03 12:52:24 +0200 | [diff] [blame] | 250 | static inline void pm_genpd_syscore_poweroff(struct device *dev) {} |
| 251 | static inline void pm_genpd_syscore_poweron(struct device *dev) {} |
Rafael J. Wysocki | 77f827d | 2012-08-06 01:39:57 +0200 | [diff] [blame] | 252 | #endif |
| 253 | |
Tomasz Figa | aa42240 | 2014-09-19 20:27:36 +0200 | [diff] [blame] | 254 | /* OF PM domain providers */ |
| 255 | struct of_device_id; |
| 256 | |
| 257 | struct genpd_onecell_data { |
| 258 | struct generic_pm_domain **domains; |
| 259 | unsigned int num_domains; |
| 260 | }; |
| 261 | |
| 262 | typedef struct generic_pm_domain *(*genpd_xlate_t)(struct of_phandle_args *args, |
| 263 | void *data); |
| 264 | |
| 265 | #ifdef CONFIG_PM_GENERIC_DOMAINS_OF |
| 266 | int __of_genpd_add_provider(struct device_node *np, genpd_xlate_t xlate, |
| 267 | void *data); |
| 268 | void of_genpd_del_provider(struct device_node *np); |
| 269 | |
| 270 | struct generic_pm_domain *__of_genpd_xlate_simple( |
| 271 | struct of_phandle_args *genpdspec, |
| 272 | void *data); |
| 273 | struct generic_pm_domain *__of_genpd_xlate_onecell( |
| 274 | struct of_phandle_args *genpdspec, |
| 275 | void *data); |
| 276 | |
| 277 | int genpd_dev_pm_attach(struct device *dev); |
| 278 | #else /* !CONFIG_PM_GENERIC_DOMAINS_OF */ |
| 279 | static inline int __of_genpd_add_provider(struct device_node *np, |
| 280 | genpd_xlate_t xlate, void *data) |
| 281 | { |
| 282 | return 0; |
| 283 | } |
| 284 | static inline void of_genpd_del_provider(struct device_node *np) {} |
| 285 | |
| 286 | #define __of_genpd_xlate_simple NULL |
| 287 | #define __of_genpd_xlate_onecell NULL |
| 288 | |
| 289 | static inline int genpd_dev_pm_attach(struct device *dev) |
| 290 | { |
| 291 | return -ENODEV; |
| 292 | } |
| 293 | #endif /* CONFIG_PM_GENERIC_DOMAINS_OF */ |
| 294 | |
| 295 | static inline int of_genpd_add_provider_simple(struct device_node *np, |
| 296 | struct generic_pm_domain *genpd) |
| 297 | { |
| 298 | return __of_genpd_add_provider(np, __of_genpd_xlate_simple, genpd); |
| 299 | } |
| 300 | static inline int of_genpd_add_provider_onecell(struct device_node *np, |
| 301 | struct genpd_onecell_data *data) |
| 302 | { |
| 303 | return __of_genpd_add_provider(np, __of_genpd_xlate_onecell, data); |
| 304 | } |
| 305 | |
Ulf Hansson | f48c767 | 2014-09-29 13:58:47 +0200 | [diff] [blame] | 306 | #ifdef CONFIG_PM |
| 307 | extern int dev_pm_domain_attach(struct device *dev, bool power_on); |
| 308 | extern void dev_pm_domain_detach(struct device *dev, bool power_off); |
| 309 | #else |
| 310 | static inline int dev_pm_domain_attach(struct device *dev, bool power_on) |
| 311 | { |
| 312 | return -ENODEV; |
| 313 | } |
| 314 | static inline void dev_pm_domain_detach(struct device *dev, bool power_off) {} |
| 315 | #endif |
| 316 | |
Rafael J. Wysocki | f721889 | 2011-07-01 22:12:45 +0200 | [diff] [blame] | 317 | #endif /* _LINUX_PM_DOMAIN_H */ |