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 | |
Ulf Hansson | c11f6f5 | 2014-12-01 12:50:21 +0100 | [diff] [blame] | 20 | /* Defines used for the flags field in the struct generic_pm_domain */ |
| 21 | #define GENPD_FLAG_PM_CLK (1U << 0) /* PM domain uses PM clk */ |
| 22 | |
Rafael J. Wysocki | 17b75ec | 2011-07-12 00:39:29 +0200 | [diff] [blame] | 23 | enum gpd_status { |
| 24 | GPD_STATE_ACTIVE = 0, /* PM domain is active */ |
Rafael J. Wysocki | 17877eb | 2011-08-08 23:43:50 +0200 | [diff] [blame] | 25 | 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] | 26 | GPD_STATE_BUSY, /* Something is happening to the PM domain */ |
Rafael J. Wysocki | c6d22b3 | 2011-07-12 00:39:36 +0200 | [diff] [blame] | 27 | GPD_STATE_REPEAT, /* Power off in progress, to be repeated */ |
Rafael J. Wysocki | 17b75ec | 2011-07-12 00:39:29 +0200 | [diff] [blame] | 28 | GPD_STATE_POWER_OFF, /* PM domain is off */ |
| 29 | }; |
Rafael J. Wysocki | 596ba34 | 2011-07-01 22:13:19 +0200 | [diff] [blame] | 30 | |
Rafael J. Wysocki | f721889 | 2011-07-01 22:12:45 +0200 | [diff] [blame] | 31 | struct dev_power_governor { |
| 32 | bool (*power_down_ok)(struct dev_pm_domain *domain); |
Rafael J. Wysocki | b02c999 | 2011-12-01 00:02:05 +0100 | [diff] [blame] | 33 | bool (*stop_ok)(struct device *dev); |
Rafael J. Wysocki | f721889 | 2011-07-01 22:12:45 +0200 | [diff] [blame] | 34 | }; |
| 35 | |
Rafael J. Wysocki | d5e4cbf | 2011-11-27 13:11:36 +0100 | [diff] [blame] | 36 | struct gpd_dev_ops { |
| 37 | int (*start)(struct device *dev); |
| 38 | int (*stop)(struct device *dev); |
Rafael J. Wysocki | ecf0047 | 2011-11-27 13:11:44 +0100 | [diff] [blame] | 39 | int (*save_state)(struct device *dev); |
| 40 | int (*restore_state)(struct device *dev); |
Rafael J. Wysocki | d5e4cbf | 2011-11-27 13:11:36 +0100 | [diff] [blame] | 41 | bool (*active_wakeup)(struct device *dev); |
| 42 | }; |
| 43 | |
Ulf Hansson | f39cb17 | 2014-10-02 21:12:34 +0200 | [diff] [blame] | 44 | struct gpd_cpuidle_data { |
Rafael J. Wysocki | cbc9ef0 | 2012-07-03 19:07:42 +0200 | [diff] [blame] | 45 | unsigned int saved_exit_latency; |
| 46 | struct cpuidle_state *idle_state; |
| 47 | }; |
| 48 | |
Rafael J. Wysocki | f721889 | 2011-07-01 22:12:45 +0200 | [diff] [blame] | 49 | struct generic_pm_domain { |
| 50 | struct dev_pm_domain domain; /* PM domain operations */ |
Rafael J. Wysocki | 5125bbf | 2011-07-13 12:31:52 +0200 | [diff] [blame] | 51 | 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] | 52 | struct list_head master_links; /* Links with PM domain as a master */ |
| 53 | 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] | 54 | struct list_head dev_list; /* List of devices */ |
| 55 | struct mutex lock; |
| 56 | struct dev_power_governor *gov; |
| 57 | struct work_struct power_off_work; |
Geert Uytterhoeven | d07e9c1 | 2014-08-29 15:13:21 +0200 | [diff] [blame] | 58 | const char *name; |
Rafael J. Wysocki | f721889 | 2011-07-01 22:12:45 +0200 | [diff] [blame] | 59 | unsigned int in_progress; /* Number of devices being suspended now */ |
Rafael J. Wysocki | c4bb316 | 2011-08-08 23:43:04 +0200 | [diff] [blame] | 60 | atomic_t sd_count; /* Number of subdomains with power "on" */ |
Rafael J. Wysocki | 17b75ec | 2011-07-12 00:39:29 +0200 | [diff] [blame] | 61 | enum gpd_status status; /* Current state of the domain */ |
| 62 | wait_queue_head_t status_wait_queue; |
Rafael J. Wysocki | c6d22b3 | 2011-07-12 00:39:36 +0200 | [diff] [blame] | 63 | struct task_struct *poweroff_task; /* Powering off task */ |
| 64 | unsigned int resume_count; /* Number of devices being resumed */ |
Rafael J. Wysocki | 596ba34 | 2011-07-01 22:13:19 +0200 | [diff] [blame] | 65 | unsigned int device_count; /* Number of devices */ |
| 66 | unsigned int suspended_count; /* System suspend device counter */ |
| 67 | unsigned int prepared_count; /* Suspend counter of prepared devices */ |
| 68 | bool suspend_power_off; /* Power status before system suspend */ |
Rafael J. Wysocki | f721889 | 2011-07-01 22:12:45 +0200 | [diff] [blame] | 69 | int (*power_off)(struct generic_pm_domain *domain); |
Rafael J. Wysocki | 221e9b5 | 2011-12-01 00:02:10 +0100 | [diff] [blame] | 70 | s64 power_off_latency_ns; |
Rafael J. Wysocki | f721889 | 2011-07-01 22:12:45 +0200 | [diff] [blame] | 71 | int (*power_on)(struct generic_pm_domain *domain); |
Rafael J. Wysocki | 221e9b5 | 2011-12-01 00:02:10 +0100 | [diff] [blame] | 72 | s64 power_on_latency_ns; |
Rafael J. Wysocki | d5e4cbf | 2011-11-27 13:11:36 +0100 | [diff] [blame] | 73 | struct gpd_dev_ops dev_ops; |
Rafael J. Wysocki | 221e9b5 | 2011-12-01 00:02:10 +0100 | [diff] [blame] | 74 | s64 max_off_time_ns; /* Maximum allowed "suspended" time. */ |
Rafael J. Wysocki | 6ff7bb0d0 | 2012-05-01 21:34:07 +0200 | [diff] [blame] | 75 | bool max_off_time_changed; |
| 76 | bool cached_power_down_ok; |
Ulf Hansson | f39cb17 | 2014-10-02 21:12:34 +0200 | [diff] [blame] | 77 | struct gpd_cpuidle_data *cpuidle_data; |
Ulf Hansson | c16561e | 2014-11-06 00:37:08 +0100 | [diff] [blame] | 78 | int (*attach_dev)(struct generic_pm_domain *domain, |
| 79 | struct device *dev); |
| 80 | void (*detach_dev)(struct generic_pm_domain *domain, |
| 81 | struct device *dev); |
Ulf Hansson | c11f6f5 | 2014-12-01 12:50:21 +0100 | [diff] [blame] | 82 | unsigned int flags; /* Bit field of configs for genpd */ |
Rafael J. Wysocki | f721889 | 2011-07-01 22:12:45 +0200 | [diff] [blame] | 83 | }; |
| 84 | |
Rafael J. Wysocki | 596ba34 | 2011-07-01 22:13:19 +0200 | [diff] [blame] | 85 | static inline struct generic_pm_domain *pd_to_genpd(struct dev_pm_domain *pd) |
| 86 | { |
| 87 | return container_of(pd, struct generic_pm_domain, domain); |
| 88 | } |
| 89 | |
Rafael J. Wysocki | 5063ce1 | 2011-08-08 23:43:40 +0200 | [diff] [blame] | 90 | struct gpd_link { |
| 91 | struct generic_pm_domain *master; |
| 92 | struct list_head master_node; |
| 93 | struct generic_pm_domain *slave; |
| 94 | struct list_head slave_node; |
| 95 | }; |
| 96 | |
Rafael J. Wysocki | b02c999 | 2011-12-01 00:02:05 +0100 | [diff] [blame] | 97 | struct gpd_timing_data { |
| 98 | s64 stop_latency_ns; |
| 99 | s64 start_latency_ns; |
Rafael J. Wysocki | 221e9b5 | 2011-12-01 00:02:10 +0100 | [diff] [blame] | 100 | s64 save_state_latency_ns; |
| 101 | s64 restore_state_latency_ns; |
Rafael J. Wysocki | a5bef810 | 2012-04-29 22:54:17 +0200 | [diff] [blame] | 102 | s64 effective_constraint_ns; |
Rafael J. Wysocki | 6ff7bb0d0 | 2012-05-01 21:34:07 +0200 | [diff] [blame] | 103 | bool constraint_changed; |
| 104 | bool cached_stop_ok; |
Rafael J. Wysocki | b02c999 | 2011-12-01 00:02:05 +0100 | [diff] [blame] | 105 | }; |
| 106 | |
Ulf Hansson | 00e7c29 | 2014-11-14 08:41:32 +0100 | [diff] [blame] | 107 | struct pm_domain_data { |
| 108 | struct list_head list_node; |
| 109 | struct device *dev; |
| 110 | }; |
| 111 | |
Rafael J. Wysocki | cd0ea67 | 2011-09-26 20:22:02 +0200 | [diff] [blame] | 112 | struct generic_pm_domain_data { |
| 113 | struct pm_domain_data base; |
Rafael J. Wysocki | b02c999 | 2011-12-01 00:02:05 +0100 | [diff] [blame] | 114 | struct gpd_timing_data td; |
Rafael J. Wysocki | 6ff7bb0d0 | 2012-05-01 21:34:07 +0200 | [diff] [blame] | 115 | struct notifier_block nb; |
| 116 | struct mutex lock; |
Rafael J. Wysocki | 1d5fcfe | 2012-07-05 22:12:32 +0200 | [diff] [blame] | 117 | unsigned int refcount; |
Ulf Hansson | 67732cd | 2014-11-11 11:07:08 +0100 | [diff] [blame] | 118 | int need_restore; |
Rafael J. Wysocki | cd0ea67 | 2011-09-26 20:22:02 +0200 | [diff] [blame] | 119 | }; |
| 120 | |
Guennadi Liakhovetski | 9b4f617 | 2012-02-04 22:26:49 +0100 | [diff] [blame] | 121 | #ifdef CONFIG_PM_GENERIC_DOMAINS |
Rafael J. Wysocki | cd0ea67 | 2011-09-26 20:22:02 +0200 | [diff] [blame] | 122 | static inline struct generic_pm_domain_data *to_gpd_data(struct pm_domain_data *pdd) |
| 123 | { |
| 124 | return container_of(pdd, struct generic_pm_domain_data, base); |
| 125 | } |
| 126 | |
Rafael J. Wysocki | d5e4cbf | 2011-11-27 13:11:36 +0100 | [diff] [blame] | 127 | static inline struct generic_pm_domain_data *dev_gpd_data(struct device *dev) |
| 128 | { |
| 129 | return to_gpd_data(dev->power.subsys_data->domain_data); |
| 130 | } |
| 131 | |
Rafael J. Wysocki | b02c999 | 2011-12-01 00:02:05 +0100 | [diff] [blame] | 132 | extern struct generic_pm_domain *dev_to_genpd(struct device *dev); |
| 133 | extern int __pm_genpd_add_device(struct generic_pm_domain *genpd, |
| 134 | struct device *dev, |
| 135 | struct gpd_timing_data *td); |
| 136 | |
Rafael J. Wysocki | b5abb08 | 2012-08-07 01:06:11 +0200 | [diff] [blame] | 137 | extern int __pm_genpd_name_add_device(const char *domain_name, |
| 138 | struct device *dev, |
| 139 | struct gpd_timing_data *td); |
Thomas Abraham | c8aa130 | 2012-01-27 15:22:07 +0900 | [diff] [blame] | 140 | |
Rafael J. Wysocki | f721889 | 2011-07-01 22:12:45 +0200 | [diff] [blame] | 141 | extern int pm_genpd_remove_device(struct generic_pm_domain *genpd, |
| 142 | struct device *dev); |
Rafael J. Wysocki | ca1d72f | 2012-05-14 21:45:52 +0200 | [diff] [blame] | 143 | 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] | 144 | extern int pm_genpd_add_subdomain(struct generic_pm_domain *genpd, |
| 145 | struct generic_pm_domain *new_subdomain); |
Rafael J. Wysocki | fb7268b | 2012-08-07 01:08:37 +0200 | [diff] [blame] | 146 | extern int pm_genpd_add_subdomain_names(const char *master_name, |
| 147 | const char *subdomain_name); |
Rafael J. Wysocki | f721889 | 2011-07-01 22:12:45 +0200 | [diff] [blame] | 148 | extern int pm_genpd_remove_subdomain(struct generic_pm_domain *genpd, |
| 149 | struct generic_pm_domain *target); |
Rafael J. Wysocki | 4011444 | 2012-08-15 20:32:43 +0200 | [diff] [blame] | 150 | 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] | 151 | 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] | 152 | extern int pm_genpd_detach_cpuidle(struct generic_pm_domain *genpd); |
Rafael J. Wysocki | 74a2799a | 2012-08-15 20:32:59 +0200 | [diff] [blame] | 153 | extern int pm_genpd_name_detach_cpuidle(const char *name); |
Rafael J. Wysocki | f721889 | 2011-07-01 22:12:45 +0200 | [diff] [blame] | 154 | extern void pm_genpd_init(struct generic_pm_domain *genpd, |
| 155 | struct dev_power_governor *gov, bool is_off); |
Rafael J. Wysocki | b02c999 | 2011-12-01 00:02:05 +0100 | [diff] [blame] | 156 | |
Magnus Damm | 18b4f3f | 2011-07-10 10:39:14 +0200 | [diff] [blame] | 157 | extern int pm_genpd_poweron(struct generic_pm_domain *genpd); |
Rafael J. Wysocki | 8bc0251 | 2012-08-07 01:11:14 +0200 | [diff] [blame] | 158 | extern int pm_genpd_name_poweron(const char *domain_name); |
Rafael J. Wysocki | b02c999 | 2011-12-01 00:02:05 +0100 | [diff] [blame] | 159 | |
Ulf Hansson | ae3c511 | 2014-09-03 12:52:31 +0200 | [diff] [blame] | 160 | extern struct dev_power_governor simple_qos_governor; |
Mark Brown | 925b44a | 2011-12-08 23:27:28 +0100 | [diff] [blame] | 161 | extern struct dev_power_governor pm_domain_always_on_gov; |
Rafael J. Wysocki | f721889 | 2011-07-01 22:12:45 +0200 | [diff] [blame] | 162 | #else |
Rafael J. Wysocki | b02c999 | 2011-12-01 00:02:05 +0100 | [diff] [blame] | 163 | |
Magnus Damm | b642631 | 2012-02-25 22:14:18 +0100 | [diff] [blame] | 164 | static inline struct generic_pm_domain_data *dev_gpd_data(struct device *dev) |
| 165 | { |
| 166 | return ERR_PTR(-ENOSYS); |
| 167 | } |
Rafael J. Wysocki | b02c999 | 2011-12-01 00:02:05 +0100 | [diff] [blame] | 168 | static inline struct generic_pm_domain *dev_to_genpd(struct device *dev) |
| 169 | { |
| 170 | return ERR_PTR(-ENOSYS); |
| 171 | } |
| 172 | static inline int __pm_genpd_add_device(struct generic_pm_domain *genpd, |
| 173 | struct device *dev, |
| 174 | struct gpd_timing_data *td) |
| 175 | { |
| 176 | return -ENOSYS; |
| 177 | } |
Rafael J. Wysocki | b5abb08 | 2012-08-07 01:06:11 +0200 | [diff] [blame] | 178 | static inline int __pm_genpd_name_add_device(const char *domain_name, |
| 179 | struct device *dev, |
| 180 | struct gpd_timing_data *td) |
Rafael J. Wysocki | f721889 | 2011-07-01 22:12:45 +0200 | [diff] [blame] | 181 | { |
| 182 | return -ENOSYS; |
| 183 | } |
| 184 | static inline int pm_genpd_remove_device(struct generic_pm_domain *genpd, |
| 185 | struct device *dev) |
| 186 | { |
| 187 | return -ENOSYS; |
| 188 | } |
Rafael J. Wysocki | ca1d72f | 2012-05-14 21:45:52 +0200 | [diff] [blame] | 189 | 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] | 190 | static inline int pm_genpd_add_subdomain(struct generic_pm_domain *genpd, |
| 191 | struct generic_pm_domain *new_sd) |
| 192 | { |
| 193 | return -ENOSYS; |
| 194 | } |
Rafael J. Wysocki | fb7268b | 2012-08-07 01:08:37 +0200 | [diff] [blame] | 195 | static inline int pm_genpd_add_subdomain_names(const char *master_name, |
| 196 | const char *subdomain_name) |
| 197 | { |
| 198 | return -ENOSYS; |
| 199 | } |
Rafael J. Wysocki | f721889 | 2011-07-01 22:12:45 +0200 | [diff] [blame] | 200 | static inline int pm_genpd_remove_subdomain(struct generic_pm_domain *genpd, |
| 201 | struct generic_pm_domain *target) |
| 202 | { |
| 203 | return -ENOSYS; |
| 204 | } |
Rafael J. Wysocki | 4011444 | 2012-08-15 20:32:43 +0200 | [diff] [blame] | 205 | 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] | 206 | { |
| 207 | return -ENOSYS; |
| 208 | } |
Rafael J. Wysocki | 74a2799a | 2012-08-15 20:32:59 +0200 | [diff] [blame] | 209 | static inline int pm_genpd_name_attach_cpuidle(const char *name, int state) |
| 210 | { |
| 211 | return -ENOSYS; |
| 212 | } |
Rafael J. Wysocki | 4011444 | 2012-08-15 20:32:43 +0200 | [diff] [blame] | 213 | 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] | 214 | { |
| 215 | return -ENOSYS; |
| 216 | } |
Rafael J. Wysocki | 74a2799a | 2012-08-15 20:32:59 +0200 | [diff] [blame] | 217 | static inline int pm_genpd_name_detach_cpuidle(const char *name) |
| 218 | { |
| 219 | return -ENOSYS; |
| 220 | } |
Magnus Damm | b642631 | 2012-02-25 22:14:18 +0100 | [diff] [blame] | 221 | static inline void pm_genpd_init(struct generic_pm_domain *genpd, |
| 222 | struct dev_power_governor *gov, bool is_off) |
Rafael J. Wysocki | b02c999 | 2011-12-01 00:02:05 +0100 | [diff] [blame] | 223 | { |
| 224 | } |
Magnus Damm | 18b4f3f | 2011-07-10 10:39:14 +0200 | [diff] [blame] | 225 | static inline int pm_genpd_poweron(struct generic_pm_domain *genpd) |
| 226 | { |
| 227 | return -ENOSYS; |
| 228 | } |
Rafael J. Wysocki | 8bc0251 | 2012-08-07 01:11:14 +0200 | [diff] [blame] | 229 | static inline int pm_genpd_name_poweron(const char *domain_name) |
| 230 | { |
| 231 | return -ENOSYS; |
| 232 | } |
Magnus Damm | b642631 | 2012-02-25 22:14:18 +0100 | [diff] [blame] | 233 | #define simple_qos_governor NULL |
Mark Brown | 925b44a | 2011-12-08 23:27:28 +0100 | [diff] [blame] | 234 | #define pm_domain_always_on_gov NULL |
Rafael J. Wysocki | 17f2ae7 | 2011-08-14 13:34:31 +0200 | [diff] [blame] | 235 | #endif |
| 236 | |
Rafael J. Wysocki | b5abb08 | 2012-08-07 01:06:11 +0200 | [diff] [blame] | 237 | static inline int pm_genpd_add_device(struct generic_pm_domain *genpd, |
| 238 | struct device *dev) |
| 239 | { |
| 240 | return __pm_genpd_add_device(genpd, dev, NULL); |
| 241 | } |
| 242 | |
Rafael J. Wysocki | b5abb08 | 2012-08-07 01:06:11 +0200 | [diff] [blame] | 243 | static inline int pm_genpd_name_add_device(const char *domain_name, |
| 244 | struct device *dev) |
| 245 | { |
| 246 | return __pm_genpd_name_add_device(domain_name, dev, NULL); |
| 247 | } |
| 248 | |
Rafael J. Wysocki | 17f2ae7 | 2011-08-14 13:34:31 +0200 | [diff] [blame] | 249 | #ifdef CONFIG_PM_GENERIC_DOMAINS_RUNTIME |
Rafael J. Wysocki | 17f2ae7 | 2011-08-14 13:34:31 +0200 | [diff] [blame] | 250 | extern void pm_genpd_poweroff_unused(void); |
| 251 | #else |
Rafael J. Wysocki | 17f2ae7 | 2011-08-14 13:34:31 +0200 | [diff] [blame] | 252 | static inline void pm_genpd_poweroff_unused(void) {} |
Rafael J. Wysocki | f721889 | 2011-07-01 22:12:45 +0200 | [diff] [blame] | 253 | #endif |
| 254 | |
Rafael J. Wysocki | 77f827d | 2012-08-06 01:39:57 +0200 | [diff] [blame] | 255 | #ifdef CONFIG_PM_GENERIC_DOMAINS_SLEEP |
Ulf Hansson | d47e646 | 2014-09-03 12:52:24 +0200 | [diff] [blame] | 256 | extern void pm_genpd_syscore_poweroff(struct device *dev); |
| 257 | extern void pm_genpd_syscore_poweron(struct device *dev); |
Rafael J. Wysocki | 77f827d | 2012-08-06 01:39:57 +0200 | [diff] [blame] | 258 | #else |
Ulf Hansson | d47e646 | 2014-09-03 12:52:24 +0200 | [diff] [blame] | 259 | static inline void pm_genpd_syscore_poweroff(struct device *dev) {} |
| 260 | static inline void pm_genpd_syscore_poweron(struct device *dev) {} |
Rafael J. Wysocki | 77f827d | 2012-08-06 01:39:57 +0200 | [diff] [blame] | 261 | #endif |
| 262 | |
Tomasz Figa | aa42240 | 2014-09-19 20:27:36 +0200 | [diff] [blame] | 263 | /* OF PM domain providers */ |
| 264 | struct of_device_id; |
| 265 | |
| 266 | struct genpd_onecell_data { |
| 267 | struct generic_pm_domain **domains; |
| 268 | unsigned int num_domains; |
| 269 | }; |
| 270 | |
| 271 | typedef struct generic_pm_domain *(*genpd_xlate_t)(struct of_phandle_args *args, |
| 272 | void *data); |
| 273 | |
| 274 | #ifdef CONFIG_PM_GENERIC_DOMAINS_OF |
| 275 | int __of_genpd_add_provider(struct device_node *np, genpd_xlate_t xlate, |
| 276 | void *data); |
| 277 | void of_genpd_del_provider(struct device_node *np); |
Amit Daniel Kachhap | 7496fcb | 2014-12-15 09:08:59 +0530 | [diff] [blame^] | 278 | struct generic_pm_domain *of_genpd_get_from_provider( |
| 279 | struct of_phandle_args *genpdspec); |
Tomasz Figa | aa42240 | 2014-09-19 20:27:36 +0200 | [diff] [blame] | 280 | |
| 281 | struct generic_pm_domain *__of_genpd_xlate_simple( |
| 282 | struct of_phandle_args *genpdspec, |
| 283 | void *data); |
| 284 | struct generic_pm_domain *__of_genpd_xlate_onecell( |
| 285 | struct of_phandle_args *genpdspec, |
| 286 | void *data); |
| 287 | |
| 288 | int genpd_dev_pm_attach(struct device *dev); |
| 289 | #else /* !CONFIG_PM_GENERIC_DOMAINS_OF */ |
| 290 | static inline int __of_genpd_add_provider(struct device_node *np, |
| 291 | genpd_xlate_t xlate, void *data) |
| 292 | { |
| 293 | return 0; |
| 294 | } |
| 295 | static inline void of_genpd_del_provider(struct device_node *np) {} |
| 296 | |
Amit Daniel Kachhap | 7496fcb | 2014-12-15 09:08:59 +0530 | [diff] [blame^] | 297 | static inline struct generic_pm_domain *of_genpd_get_from_provider( |
| 298 | struct of_phandle_args *genpdspec) |
| 299 | { |
| 300 | return NULL; |
| 301 | } |
| 302 | |
Tomasz Figa | aa42240 | 2014-09-19 20:27:36 +0200 | [diff] [blame] | 303 | #define __of_genpd_xlate_simple NULL |
| 304 | #define __of_genpd_xlate_onecell NULL |
| 305 | |
| 306 | static inline int genpd_dev_pm_attach(struct device *dev) |
| 307 | { |
| 308 | return -ENODEV; |
| 309 | } |
| 310 | #endif /* CONFIG_PM_GENERIC_DOMAINS_OF */ |
| 311 | |
| 312 | static inline int of_genpd_add_provider_simple(struct device_node *np, |
| 313 | struct generic_pm_domain *genpd) |
| 314 | { |
| 315 | return __of_genpd_add_provider(np, __of_genpd_xlate_simple, genpd); |
| 316 | } |
| 317 | static inline int of_genpd_add_provider_onecell(struct device_node *np, |
| 318 | struct genpd_onecell_data *data) |
| 319 | { |
| 320 | return __of_genpd_add_provider(np, __of_genpd_xlate_onecell, data); |
| 321 | } |
| 322 | |
Ulf Hansson | f48c767 | 2014-09-29 13:58:47 +0200 | [diff] [blame] | 323 | #ifdef CONFIG_PM |
| 324 | extern int dev_pm_domain_attach(struct device *dev, bool power_on); |
| 325 | extern void dev_pm_domain_detach(struct device *dev, bool power_off); |
| 326 | #else |
| 327 | static inline int dev_pm_domain_attach(struct device *dev, bool power_on) |
| 328 | { |
| 329 | return -ENODEV; |
| 330 | } |
| 331 | static inline void dev_pm_domain_detach(struct device *dev, bool power_off) {} |
| 332 | #endif |
| 333 | |
Rafael J. Wysocki | f721889 | 2011-07-01 22:12:45 +0200 | [diff] [blame] | 334 | #endif /* _LINUX_PM_DOMAIN_H */ |