[mirror_ubuntu-bionic-kernel.git] / include / linux / pm_domain.h

/*
 * pm_domain.h - Definitions and headers related to device power domains.
 *
 * Copyright (C) 2011 Rafael J. Wysocki <rjw@sisk.pl>, Renesas Electronics Corp.
 *
 * This file is released under the GPLv2.
 */

#ifndef _LINUX_PM_DOMAIN_H
#define _LINUX_PM_DOMAIN_H

#include <linux/device.h>
#include <linux/mutex.h>
#include <linux/pm.h>
#include <linux/err.h>
#include <linux/of.h>
#include <linux/notifier.h>
#include <linux/spinlock.h>

/* Defines used for the flags field in the struct generic_pm_domain */
#define GENPD_FLAG_PM_CLK	 (1U << 0) /* PM domain uses PM clk */
#define GENPD_FLAG_IRQ_SAFE	 (1U << 1) /* PM domain operates in atomic */
#define GENPD_FLAG_ALWAYS_ON	 (1U << 2) /* PM domain is always powered on */
#define GENPD_FLAG_ACTIVE_WAKEUP (1U << 3) /* Keep devices active if wakeup */

enum gpd_status {
	GPD_STATE_ACTIVE = 0,	/* PM domain is active */
	GPD_STATE_POWER_OFF,	/* PM domain is off */
};

struct dev_power_governor {
	bool (*power_down_ok)(struct dev_pm_domain *domain);
	bool (*suspend_ok)(struct device *dev);
};

struct gpd_dev_ops {
	int (*start)(struct device *dev);
	int (*stop)(struct device *dev);
};

struct genpd_power_state {
	s64 power_off_latency_ns;
	s64 power_on_latency_ns;
	s64 residency_ns;
	struct fwnode_handle *fwnode;
	ktime_t idle_time;
};

struct genpd_lock_ops;

struct generic_pm_domain {
	struct dev_pm_domain domain;	/* PM domain operations */
	struct list_head gpd_list_node;	/* Node in the global PM domains list */
	struct list_head master_links;	/* Links with PM domain as a master */
	struct list_head slave_links;	/* Links with PM domain as a slave */
	struct list_head dev_list;	/* List of devices */
	struct dev_power_governor *gov;
	struct work_struct power_off_work;
	struct fwnode_handle *provider;	/* Identity of the domain provider */
	bool has_provider;
	const char *name;
	atomic_t sd_count;	/* Number of subdomains with power "on" */
	enum gpd_status status;	/* Current state of the domain */
	unsigned int device_count;	/* Number of devices */
	unsigned int suspended_count;	/* System suspend device counter */
	unsigned int prepared_count;	/* Suspend counter of prepared devices */
	unsigned int performance_state;	/* Aggregated max performance state */
	int (*power_off)(struct generic_pm_domain *domain);
	int (*power_on)(struct generic_pm_domain *domain);
	int (*set_performance_state)(struct generic_pm_domain *genpd,
				     unsigned int state);
	struct gpd_dev_ops dev_ops;
	s64 max_off_time_ns;	/* Maximum allowed "suspended" time. */
	bool max_off_time_changed;
	bool cached_power_down_ok;
	int (*attach_dev)(struct generic_pm_domain *domain,
			  struct device *dev);
	void (*detach_dev)(struct generic_pm_domain *domain,
			   struct device *dev);
	unsigned int flags;		/* Bit field of configs for genpd */
	struct genpd_power_state *states;
	unsigned int state_count; /* number of states */
	unsigned int state_idx; /* state that genpd will go to when off */
	void *free; /* Free the state that was allocated for default */
	ktime_t on_time;
	ktime_t accounting_time;
	const struct genpd_lock_ops *lock_ops;
	union {
		struct mutex mlock;
		struct {
			spinlock_t slock;
			unsigned long lock_flags;
		};
	};

};

static inline struct generic_pm_domain *pd_to_genpd(struct dev_pm_domain *pd)
{
	return container_of(pd, struct generic_pm_domain, domain);
}

struct gpd_link {
	struct generic_pm_domain *master;
	struct list_head master_node;
	struct generic_pm_domain *slave;
	struct list_head slave_node;
};

struct gpd_timing_data {
	s64 suspend_latency_ns;
	s64 resume_latency_ns;
	s64 effective_constraint_ns;
	bool constraint_changed;
	bool cached_suspend_ok;
};

struct pm_domain_data {
	struct list_head list_node;
	struct device *dev;
};

struct generic_pm_domain_data {
	struct pm_domain_data base;
	struct gpd_timing_data td;
	struct notifier_block nb;
	unsigned int performance_state;
	void *data;
};

#ifdef CONFIG_PM_GENERIC_DOMAINS
static inline struct generic_pm_domain_data *to_gpd_data(struct pm_domain_data *pdd)
{
	return container_of(pdd, struct generic_pm_domain_data, base);
}

static inline struct generic_pm_domain_data *dev_gpd_data(struct device *dev)
{
	return to_gpd_data(dev->power.subsys_data->domain_data);
}

extern int __pm_genpd_add_device(struct generic_pm_domain *genpd,
				 struct device *dev,
				 struct gpd_timing_data *td);

extern int pm_genpd_remove_device(struct generic_pm_domain *genpd,
				  struct device *dev);
extern int pm_genpd_add_subdomain(struct generic_pm_domain *genpd,
				  struct generic_pm_domain *new_subdomain);
extern int pm_genpd_remove_subdomain(struct generic_pm_domain *genpd,
				     struct generic_pm_domain *target);
extern int pm_genpd_init(struct generic_pm_domain *genpd,
			 struct dev_power_governor *gov, bool is_off);
extern int pm_genpd_remove(struct generic_pm_domain *genpd);
extern int dev_pm_genpd_set_performance_state(struct device *dev,
					      unsigned int state);

extern struct dev_power_governor simple_qos_governor;
extern struct dev_power_governor pm_domain_always_on_gov;
#else

static inline struct generic_pm_domain_data *dev_gpd_data(struct device *dev)
{
	return ERR_PTR(-ENOSYS);
}
static inline int __pm_genpd_add_device(struct generic_pm_domain *genpd,
					struct device *dev,
					struct gpd_timing_data *td)
{
	return -ENOSYS;
}
static inline int pm_genpd_remove_device(struct generic_pm_domain *genpd,
					 struct device *dev)
{
	return -ENOSYS;
}
static inline int pm_genpd_add_subdomain(struct generic_pm_domain *genpd,
					 struct generic_pm_domain *new_sd)
{
	return -ENOSYS;
}
static inline int pm_genpd_remove_subdomain(struct generic_pm_domain *genpd,
					    struct generic_pm_domain *target)
{
	return -ENOSYS;
}
static inline int pm_genpd_init(struct generic_pm_domain *genpd,
				struct dev_power_governor *gov, bool is_off)
{
	return -ENOSYS;
}
static inline int pm_genpd_remove(struct generic_pm_domain *genpd)
{
	return -ENOTSUPP;
}

static inline int dev_pm_genpd_set_performance_state(struct device *dev,
						     unsigned int state)
{
	return -ENOTSUPP;
}

#define simple_qos_governor		(*(struct dev_power_governor *)(NULL))
#define pm_domain_always_on_gov		(*(struct dev_power_governor *)(NULL))
#endif

static inline int pm_genpd_add_device(struct generic_pm_domain *genpd,
				      struct device *dev)
{
	return __pm_genpd_add_device(genpd, dev, NULL);
}

#ifdef CONFIG_PM_GENERIC_DOMAINS_SLEEP
extern void pm_genpd_syscore_poweroff(struct device *dev);
extern void pm_genpd_syscore_poweron(struct device *dev);
#else
static inline void pm_genpd_syscore_poweroff(struct device *dev) {}
static inline void pm_genpd_syscore_poweron(struct device *dev) {}
#endif

/* OF PM domain providers */
struct of_device_id;

typedef struct generic_pm_domain *(*genpd_xlate_t)(struct of_phandle_args *args,
						   void *data);

struct genpd_onecell_data {
	struct generic_pm_domain **domains;
	unsigned int num_domains;
	genpd_xlate_t xlate;
};

#ifdef CONFIG_PM_GENERIC_DOMAINS_OF
int of_genpd_add_provider_simple(struct device_node *np,
				 struct generic_pm_domain *genpd);
int of_genpd_add_provider_onecell(struct device_node *np,
				  struct genpd_onecell_data *data);
void of_genpd_del_provider(struct device_node *np);
extern int of_genpd_add_device(struct of_phandle_args *args,
			       struct device *dev);
extern int of_genpd_add_subdomain(struct of_phandle_args *parent,
				  struct of_phandle_args *new_subdomain);
extern struct generic_pm_domain *of_genpd_remove_last(struct device_node *np);
extern int of_genpd_parse_idle_states(struct device_node *dn,
			struct genpd_power_state **states, int *n);

int genpd_dev_pm_attach(struct device *dev);
#else /* !CONFIG_PM_GENERIC_DOMAINS_OF */
static inline int of_genpd_add_provider_simple(struct device_node *np,
					struct generic_pm_domain *genpd)
{
	return -ENOTSUPP;
}

static inline int of_genpd_add_provider_onecell(struct device_node *np,
					struct genpd_onecell_data *data)
{
	return -ENOTSUPP;
}

static inline void of_genpd_del_provider(struct device_node *np) {}

static inline int of_genpd_add_device(struct of_phandle_args *args,
				      struct device *dev)
{
	return -ENODEV;
}

static inline int of_genpd_add_subdomain(struct of_phandle_args *parent,
					 struct of_phandle_args *new_subdomain)
{
	return -ENODEV;
}

static inline int of_genpd_parse_idle_states(struct device_node *dn,
			struct genpd_power_state **states, int *n)
{
	return -ENODEV;
}

static inline int genpd_dev_pm_attach(struct device *dev)
{
	return -ENODEV;
}

static inline
struct generic_pm_domain *of_genpd_remove_last(struct device_node *np)
{
	return ERR_PTR(-ENOTSUPP);
}
#endif /* CONFIG_PM_GENERIC_DOMAINS_OF */

#ifdef CONFIG_PM
extern int dev_pm_domain_attach(struct device *dev, bool power_on);
extern void dev_pm_domain_detach(struct device *dev, bool power_off);
extern void dev_pm_domain_set(struct device *dev, struct dev_pm_domain *pd);
#else
static inline int dev_pm_domain_attach(struct device *dev, bool power_on)
{
	return -ENODEV;
}
static inline void dev_pm_domain_detach(struct device *dev, bool power_off) {}
static inline void dev_pm_domain_set(struct device *dev,
				     struct dev_pm_domain *pd) {}
#endif

#endif /* _LINUX_PM_DOMAIN_H */
Commit	Line	Data
f721889f RW	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>
313162d0 PG	13	#include <linux/mutex.h>
313162d0 PG	14	#include <linux/pm.h>
4f042cda	15	#include <linux/err.h>
c8aa130b	16	#include <linux/of.h>
6ff7bb0d	17	#include <linux/notifier.h>
d716f479	18	#include <linux/spinlock.h>
f721889f	19
c11f6f5b	20	/* Defines used for the flags field in the struct generic_pm_domain */
95a20ef6 GU	21	#define GENPD_FLAG_PM_CLK (1U << 0) /* PM domain uses PM clk */
	22	#define GENPD_FLAG_IRQ_SAFE (1U << 1) /* PM domain operates in atomic */
	23	#define GENPD_FLAG_ALWAYS_ON (1U << 2) /* PM domain is always powered on */
	24	#define GENPD_FLAG_ACTIVE_WAKEUP (1U << 3) /* Keep devices active if wakeup */
c11f6f5b	25
17b75eca RW	26	enum gpd_status {
17b75eca RW	27	GPD_STATE_ACTIVE = 0, /* PM domain is active */
17b75eca RW	28	GPD_STATE_POWER_OFF, /* PM domain is off */
17b75eca RW	29	};
596ba34b	30
f721889f RW	31	struct dev_power_governor {
f721889f RW	32	bool (power_down_ok)(struct dev_pm_domain domain);
9df3921e	33	bool (suspend_ok)(struct device dev);
f721889f RW	34	};
f721889f RW	35
d5e4cbfe RW	36	struct gpd_dev_ops {
	37	int (start)(struct device dev);
	38	int (stop)(struct device dev);
d5e4cbfe RW	39	};
d5e4cbfe RW	40
fc5cbf0c AH	41	struct genpd_power_state {
	42	s64 power_off_latency_ns;
	43	s64 power_on_latency_ns;
405f7226	44	s64 residency_ns;
0c9b694a	45	struct fwnode_handle *fwnode;
afece3ab	46	ktime_t idle_time;
fc5cbf0c AH	47	};
fc5cbf0c AH	48
35241d12 LI	49	struct genpd_lock_ops;
35241d12 LI	50
f721889f RW	51	struct generic_pm_domain {
f721889f RW	52	struct dev_pm_domain domain; /* PM domain operations */
5125bbf3	53	struct list_head gpd_list_node; /* Node in the global PM domains list */
5063ce15 RW	54	struct list_head master_links; /* Links with PM domain as a master */
5063ce15 RW	55	struct list_head slave_links; /* Links with PM domain as a slave */
f721889f	56	struct list_head dev_list; /* List of devices */
f721889f RW	57	struct dev_power_governor *gov;
f721889f RW	58	struct work_struct power_off_work;
de0aa06d JH	59	struct fwnode_handle provider; / Identity of the domain provider */
de0aa06d JH	60	bool has_provider;
d07e9c17	61	const char *name;
c4bb3160	62	atomic_t sd_count; /* Number of subdomains with power "on" */
17b75eca	63	enum gpd_status status; /* Current state of the domain */
596ba34b RW	64	unsigned int device_count; /* Number of devices */
	65	unsigned int suspended_count; /* System suspend device counter */
	66	unsigned int prepared_count; /* Suspend counter of prepared devices */
42f6284a	67	unsigned int performance_state; /* Aggregated max performance state */
f721889f RW	68	int (power_off)(struct generic_pm_domain domain);
f721889f RW	69	int (power_on)(struct generic_pm_domain domain);
42f6284a VK	70	int (set_performance_state)(struct generic_pm_domain genpd,
42f6284a VK	71	unsigned int state);
d5e4cbfe	72	struct gpd_dev_ops dev_ops;
221e9b58	73	s64 max_off_time_ns; /* Maximum allowed "suspended" time. */
6ff7bb0d RW	74	bool max_off_time_changed;
6ff7bb0d RW	75	bool cached_power_down_ok;
c16561e8 UH	76	int (attach_dev)(struct generic_pm_domain domain,
	77	struct device *dev);
	78	void (detach_dev)(struct generic_pm_domain domain,
	79	struct device *dev);
c11f6f5b	80	unsigned int flags; /* Bit field of configs for genpd */
59d65b73	81	struct genpd_power_state *states;
fc5cbf0c AH	82	unsigned int state_count; /* number of states */
fc5cbf0c AH	83	unsigned int state_idx; /* state that genpd will go to when off */
59d65b73	84	void free; / Free the state that was allocated for default */
afece3ab TG	85	ktime_t on_time;
afece3ab TG	86	ktime_t accounting_time;
35241d12	87	const struct genpd_lock_ops *lock_ops;
d716f479 LI	88	union {
	89	struct mutex mlock;
	90	struct {
	91	spinlock_t slock;
	92	unsigned long lock_flags;
	93	};
	94	};
fc5cbf0c	95
f721889f RW	96	};
f721889f RW	97
596ba34b RW	98	static inline struct generic_pm_domain pd_to_genpd(struct dev_pm_domain pd)
	99	{
	100	return container_of(pd, struct generic_pm_domain, domain);
	101	}
	102
5063ce15 RW	103	struct gpd_link {
	104	struct generic_pm_domain *master;
	105	struct list_head master_node;
	106	struct generic_pm_domain *slave;
	107	struct list_head slave_node;
	108	};
	109
b02c999a	110	struct gpd_timing_data {
2b1d88cd UH	111	s64 suspend_latency_ns;
2b1d88cd UH	112	s64 resume_latency_ns;
a5bef810	113	s64 effective_constraint_ns;
6ff7bb0d	114	bool constraint_changed;
9df3921e	115	bool cached_suspend_ok;
b02c999a RW	116	};
b02c999a RW	117
00e7c295 UH	118	struct pm_domain_data {
	119	struct list_head list_node;
	120	struct device *dev;
	121	};
	122
cd0ea672 RW	123	struct generic_pm_domain_data {
cd0ea672 RW	124	struct pm_domain_data base;
b02c999a	125	struct gpd_timing_data td;
6ff7bb0d	126	struct notifier_block nb;
42f6284a	127	unsigned int performance_state;
a5ea7a0f	128	void *data;
cd0ea672 RW	129	};
cd0ea672 RW	130
9b4f617b	131	#ifdef CONFIG_PM_GENERIC_DOMAINS
cd0ea672 RW	132	static inline struct generic_pm_domain_data to_gpd_data(struct pm_domain_data pdd)
	133	{
	134	return container_of(pdd, struct generic_pm_domain_data, base);
	135	}
	136
d5e4cbfe RW	137	static inline struct generic_pm_domain_data dev_gpd_data(struct device dev)
	138	{
	139	return to_gpd_data(dev->power.subsys_data->domain_data);
	140	}
	141
b02c999a RW	142	extern int __pm_genpd_add_device(struct generic_pm_domain *genpd,
	143	struct device *dev,
	144	struct gpd_timing_data *td);
	145
f721889f RW	146	extern int pm_genpd_remove_device(struct generic_pm_domain *genpd,
	147	struct device *dev);
	148	extern int pm_genpd_add_subdomain(struct generic_pm_domain *genpd,
	149	struct generic_pm_domain *new_subdomain);
	150	extern int pm_genpd_remove_subdomain(struct generic_pm_domain *genpd,
	151	struct generic_pm_domain *target);
7eb231c3 UH	152	extern int pm_genpd_init(struct generic_pm_domain *genpd,
7eb231c3 UH	153	struct dev_power_governor *gov, bool is_off);
3fe57710	154	extern int pm_genpd_remove(struct generic_pm_domain *genpd);
42f6284a VK	155	extern int dev_pm_genpd_set_performance_state(struct device *dev,
42f6284a VK	156	unsigned int state);
b02c999a	157
ae3c511c	158	extern struct dev_power_governor simple_qos_governor;
925b44a2	159	extern struct dev_power_governor pm_domain_always_on_gov;
f721889f	160	#else
b02c999a	161
b642631d MD	162	static inline struct generic_pm_domain_data dev_gpd_data(struct device dev)
	163	{
	164	return ERR_PTR(-ENOSYS);
	165	}
b02c999a RW	166	static inline int __pm_genpd_add_device(struct generic_pm_domain *genpd,
	167	struct device *dev,
	168	struct gpd_timing_data *td)
	169	{
	170	return -ENOSYS;
	171	}
f721889f RW	172	static inline int pm_genpd_remove_device(struct generic_pm_domain *genpd,
	173	struct device *dev)
	174	{
	175	return -ENOSYS;
	176	}
	177	static inline int pm_genpd_add_subdomain(struct generic_pm_domain *genpd,
	178	struct generic_pm_domain *new_sd)
	179	{
	180	return -ENOSYS;
	181	}
	182	static inline int pm_genpd_remove_subdomain(struct generic_pm_domain *genpd,
	183	struct generic_pm_domain *target)
	184	{
	185	return -ENOSYS;
	186	}
7eb231c3 UH	187	static inline int pm_genpd_init(struct generic_pm_domain *genpd,
7eb231c3 UH	188	struct dev_power_governor *gov, bool is_off)
b02c999a	189	{
7eb231c3	190	return -ENOSYS;
b02c999a	191	}
3fe57710 JH	192	static inline int pm_genpd_remove(struct generic_pm_domain *genpd)
	193	{
	194	return -ENOTSUPP;
	195	}
16d0bf18	196
42f6284a VK	197	static inline int dev_pm_genpd_set_performance_state(struct device *dev,
	198	unsigned int state)
	199	{
	200	return -ENOTSUPP;
	201	}
	202
16d0bf18 GU	203	#define simple_qos_governor ((struct dev_power_governor )(NULL))
16d0bf18 GU	204	#define pm_domain_always_on_gov ((struct dev_power_governor )(NULL))
17f2ae7f RW	205	#endif
17f2ae7f RW	206
b5abb085 RW	207	static inline int pm_genpd_add_device(struct generic_pm_domain *genpd,
	208	struct device *dev)
	209	{
	210	return __pm_genpd_add_device(genpd, dev, NULL);
	211	}
	212
77f827de	213	#ifdef CONFIG_PM_GENERIC_DOMAINS_SLEEP
d47e6464 UH	214	extern void pm_genpd_syscore_poweroff(struct device *dev);
d47e6464 UH	215	extern void pm_genpd_syscore_poweron(struct device *dev);
77f827de	216	#else
d47e6464 UH	217	static inline void pm_genpd_syscore_poweroff(struct device *dev) {}
d47e6464 UH	218	static inline void pm_genpd_syscore_poweron(struct device *dev) {}
77f827de RW	219	#endif
77f827de RW	220
aa42240a TF	221	/* OF PM domain providers */
	222	struct of_device_id;
	223
40845524 TR	224	typedef struct generic_pm_domain (genpd_xlate_t)(struct of_phandle_args *args,
	225	void *data);
	226
aa42240a TF	227	struct genpd_onecell_data {
	228	struct generic_pm_domain **domains;
	229	unsigned int num_domains;
40845524	230	genpd_xlate_t xlate;
aa42240a TF	231	};
aa42240a TF	232
aa42240a	233	#ifdef CONFIG_PM_GENERIC_DOMAINS_OF
892ebdcc JH	234	int of_genpd_add_provider_simple(struct device_node *np,
	235	struct generic_pm_domain *genpd);
	236	int of_genpd_add_provider_onecell(struct device_node *np,
	237	struct genpd_onecell_data *data);
aa42240a	238	void of_genpd_del_provider(struct device_node *np);
ec69572b JH	239	extern int of_genpd_add_device(struct of_phandle_args *args,
	240	struct device *dev);
	241	extern int of_genpd_add_subdomain(struct of_phandle_args *parent,
	242	struct of_phandle_args *new_subdomain);
17926551	243	extern struct generic_pm_domain of_genpd_remove_last(struct device_node np);
30f60428 LI	244	extern int of_genpd_parse_idle_states(struct device_node *dn,
30f60428 LI	245	struct genpd_power_state *states, int n);
aa42240a TF	246
	247	int genpd_dev_pm_attach(struct device *dev);
	248	#else /* !CONFIG_PM_GENERIC_DOMAINS_OF */
892ebdcc JH	249	static inline int of_genpd_add_provider_simple(struct device_node *np,
892ebdcc JH	250	struct generic_pm_domain *genpd)
aa42240a	251	{
892ebdcc JH	252	return -ENOTSUPP;
	253	}
	254
	255	static inline int of_genpd_add_provider_onecell(struct device_node *np,
	256	struct genpd_onecell_data *data)
	257	{
	258	return -ENOTSUPP;
aa42240a	259	}
aa42240a	260
892ebdcc	261	static inline void of_genpd_del_provider(struct device_node *np) {}
aa42240a	262
ec69572b JH	263	static inline int of_genpd_add_device(struct of_phandle_args *args,
	264	struct device *dev)
	265	{
	266	return -ENODEV;
	267	}
	268
	269	static inline int of_genpd_add_subdomain(struct of_phandle_args *parent,
	270	struct of_phandle_args *new_subdomain)
	271	{
	272	return -ENODEV;
	273	}
	274
30f60428 LI	275	static inline int of_genpd_parse_idle_states(struct device_node *dn,
	276	struct genpd_power_state *states, int n)
	277	{
	278	return -ENODEV;
	279	}
	280
aa42240a TF	281	static inline int genpd_dev_pm_attach(struct device *dev)
	282	{
	283	return -ENODEV;
	284	}
17926551 JH	285
	286	static inline
	287	struct generic_pm_domain of_genpd_remove_last(struct device_node np)
	288	{
	289	return ERR_PTR(-ENOTSUPP);
	290	}
aa42240a TF	291	#endif /* CONFIG_PM_GENERIC_DOMAINS_OF */
aa42240a TF	292
f48c767c UH	293	#ifdef CONFIG_PM
	294	extern int dev_pm_domain_attach(struct device *dev, bool power_on);
	295	extern void dev_pm_domain_detach(struct device *dev, bool power_off);
989561de	296	extern void dev_pm_domain_set(struct device dev, struct dev_pm_domain pd);
f48c767c UH	297	#else
	298	static inline int dev_pm_domain_attach(struct device *dev, bool power_on)
	299	{
	300	return -ENODEV;
	301	}
	302	static inline void dev_pm_domain_detach(struct device *dev, bool power_off) {}
989561de TV	303	static inline void dev_pm_domain_set(struct device *dev,
989561de TV	304	struct dev_pm_domain *pd) {}
f48c767c UH	305	#endif
f48c767c UH	306
f721889f	307	#endif /* _LINUX_PM_DOMAIN_H */