2 * pm_clock.h - Definitions and headers related to device clocks.
4 * Copyright (C) 2011 Rafael J. Wysocki <rjw@sisk.pl>, Renesas Electronics Corp.
6 * This file is released under the GPLv2.
9 #ifndef _LINUX_PM_CLOCK_H
10 #define _LINUX_PM_CLOCK_H
12 #include <linux/device.h>
13 #include <linux/notifier.h>
15 struct pm_clk_notifier_block
{
16 struct notifier_block nb
;
17 struct dev_pm_domain
*pm_domain
;
24 static inline bool pm_clk_no_clocks(struct device
*dev
)
26 return dev
&& dev
->power
.subsys_data
27 && list_empty(&dev
->power
.subsys_data
->clock_list
);
30 extern void pm_clk_init(struct device
*dev
);
31 extern int pm_clk_create(struct device
*dev
);
32 extern void pm_clk_destroy(struct device
*dev
);
33 extern int pm_clk_add(struct device
*dev
, const char *con_id
);
34 extern int pm_clk_add_clk(struct device
*dev
, struct clk
*clk
);
35 extern void pm_clk_remove(struct device
*dev
, const char *con_id
);
36 extern int pm_clk_suspend(struct device
*dev
);
37 extern int pm_clk_resume(struct device
*dev
);
39 static inline bool pm_clk_no_clocks(struct device
*dev
)
43 static inline void pm_clk_init(struct device
*dev
)
46 static inline int pm_clk_create(struct device
*dev
)
50 static inline void pm_clk_destroy(struct device
*dev
)
53 static inline int pm_clk_add(struct device
*dev
, const char *con_id
)
58 static inline int pm_clk_add_clk(struct device
*dev
, struct clk
*clk
)
62 static inline void pm_clk_remove(struct device
*dev
, const char *con_id
)
65 #define pm_clk_suspend NULL
66 #define pm_clk_resume NULL
69 #ifdef CONFIG_HAVE_CLK
70 extern void pm_clk_add_notifier(struct bus_type
*bus
,
71 struct pm_clk_notifier_block
*clknb
);
73 static inline void pm_clk_add_notifier(struct bus_type
*bus
,
74 struct pm_clk_notifier_block
*clknb
)
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