1/*
 2 * pm_clock.h - Definitions and headers related to device clocks.
 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_CLOCK_H
10#define _LINUX_PM_CLOCK_H
11
12#include <linux/device.h>
13#include <linux/notifier.h>
14
15struct pm_clk_notifier_block {
16	struct notifier_block nb;
17	struct dev_pm_domain *pm_domain;
18	char *con_ids[];
19};
20
 
 
 
 
 
 
 
 
 
 
 
 
21#ifdef CONFIG_PM_CLK
22static inline bool pm_clk_no_clocks(struct device *dev)
23{
24	return dev && dev->power.subsys_data
25		&& list_empty(&dev->power.subsys_data->clock_list);
26}
27
28extern void pm_clk_init(struct device *dev);
29extern int pm_clk_create(struct device *dev);
30extern void pm_clk_destroy(struct device *dev);
31extern int pm_clk_add(struct device *dev, const char *con_id);
 
 
 
32extern void pm_clk_remove(struct device *dev, const char *con_id);
 
33extern int pm_clk_suspend(struct device *dev);
34extern int pm_clk_resume(struct device *dev);
35#else
36static inline bool pm_clk_no_clocks(struct device *dev)
37{
38	return true;
39}
40static inline void pm_clk_init(struct device *dev)
41{
42}
43static inline int pm_clk_create(struct device *dev)
44{
45	return -EINVAL;
46}
47static inline void pm_clk_destroy(struct device *dev)
48{
49}
50static inline int pm_clk_add(struct device *dev, const char *con_id)
51{
52	return -EINVAL;
53}
 
 
 
 
 
 
 
 
 
54static inline void pm_clk_remove(struct device *dev, const char *con_id)
55{
56}
57#define pm_clk_suspend	NULL
58#define pm_clk_resume	NULL
 
 
 
59#endif
60
61#ifdef CONFIG_HAVE_CLK
62extern void pm_clk_add_notifier(struct bus_type *bus,
63					struct pm_clk_notifier_block *clknb);
64#else
65static inline void pm_clk_add_notifier(struct bus_type *bus,
66					struct pm_clk_notifier_block *clknb)
67{
68}
69#endif
70
71#endif

 1/*
 2 * pm_clock.h - Definitions and headers related to device clocks.
 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_CLOCK_H
10#define _LINUX_PM_CLOCK_H
11
12#include <linux/device.h>
13#include <linux/notifier.h>
14
15struct pm_clk_notifier_block {
16	struct notifier_block nb;
17	struct dev_pm_domain *pm_domain;
18	char *con_ids[];
19};
20
21struct clk;
22
23#ifdef CONFIG_PM
24extern int pm_clk_runtime_suspend(struct device *dev);
25extern int pm_clk_runtime_resume(struct device *dev);
26#define USE_PM_CLK_RUNTIME_OPS \
27	.runtime_suspend = pm_clk_runtime_suspend, \
28	.runtime_resume = pm_clk_runtime_resume,
29#else
30#define USE_PM_CLK_RUNTIME_OPS
31#endif
32
33#ifdef CONFIG_PM_CLK
34static inline bool pm_clk_no_clocks(struct device *dev)
35{
36	return dev && dev->power.subsys_data
37		&& list_empty(&dev->power.subsys_data->clock_list);
38}
39
40extern void pm_clk_init(struct device *dev);
41extern int pm_clk_create(struct device *dev);
42extern void pm_clk_destroy(struct device *dev);
43extern int pm_clk_add(struct device *dev, const char *con_id);
44extern int pm_clk_add_clk(struct device *dev, struct clk *clk);
45extern int of_pm_clk_add_clk(struct device *dev, const char *name);
46extern int of_pm_clk_add_clks(struct device *dev);
47extern void pm_clk_remove(struct device *dev, const char *con_id);
48extern void pm_clk_remove_clk(struct device *dev, struct clk *clk);
49extern int pm_clk_suspend(struct device *dev);
50extern int pm_clk_resume(struct device *dev);
51#else
52static inline bool pm_clk_no_clocks(struct device *dev)
53{
54	return true;
55}
56static inline void pm_clk_init(struct device *dev)
57{
58}
59static inline int pm_clk_create(struct device *dev)
60{
61	return -EINVAL;
62}
63static inline void pm_clk_destroy(struct device *dev)
64{
65}
66static inline int pm_clk_add(struct device *dev, const char *con_id)
67{
68	return -EINVAL;
69}
70
71static inline int pm_clk_add_clk(struct device *dev, struct clk *clk)
72{
73	return -EINVAL;
74}
75static inline int of_pm_clk_add_clks(struct device *dev)
76{
77	return -EINVAL;
78}
79static inline void pm_clk_remove(struct device *dev, const char *con_id)
80{
81}
82#define pm_clk_suspend	NULL
83#define pm_clk_resume	NULL
84static inline void pm_clk_remove_clk(struct device *dev, struct clk *clk)
85{
86}
87#endif
88
89#ifdef CONFIG_HAVE_CLK
90extern void pm_clk_add_notifier(struct bus_type *bus,
91					struct pm_clk_notifier_block *clknb);
92#else
93static inline void pm_clk_add_notifier(struct bus_type *bus,
94					struct pm_clk_notifier_block *clknb)
95{
96}
97#endif
98
99#endif