projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| b5e8d269 RW |
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 | ||
| 15 | struct pm_clk_notifier_block { | |
| 16 | struct notifier_block nb; | |
| 17 | struct dev_pm_domain *pm_domain; | |
| 18 | char *con_ids[]; | |
| 19 | }; | |
| 20 | ||
| 245bd6f6 GU |
21 | struct clk; |
| 22 | ||
| 75f50400 RN |
23 | #ifdef CONFIG_PM |
| 24 | extern int pm_clk_runtime_suspend(struct device *dev); | |
| 25 | extern 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 | ||
| b5e8d269 RW |
33 | #ifdef CONFIG_PM_CLK |
| 34 | static 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 | ||
| 40 | extern void pm_clk_init(struct device *dev); | |
| 41 | extern int pm_clk_create(struct device *dev); | |
| 42 | extern void pm_clk_destroy(struct device *dev); | |
| 43 | extern int pm_clk_add(struct device *dev, const char *con_id); | |
| 245bd6f6 | 44 | extern int pm_clk_add_clk(struct device *dev, struct clk *clk); |
| b5e8d269 RW |
45 | extern void pm_clk_remove(struct device *dev, const char *con_id); |
| 46 | extern int pm_clk_suspend(struct device *dev); | |
| 47 | extern int pm_clk_resume(struct device *dev); | |
| 48 | #else | |
| 49 | static inline bool pm_clk_no_clocks(struct device *dev) | |
| 50 | { | |
| 51 | return true; | |
| 52 | } | |
| 53 | static inline void pm_clk_init(struct device *dev) | |
| 54 | { | |
| 55 | } | |
| 56 | static inline int pm_clk_create(struct device *dev) | |
| 57 | { | |
| 58 | return -EINVAL; | |
| 59 | } | |
| 60 | static inline void pm_clk_destroy(struct device *dev) | |
| 61 | { | |
| 62 | } | |
| 63 | static inline int pm_clk_add(struct device *dev, const char *con_id) | |
| 64 | { | |
| 65 | return -EINVAL; | |
| 66 | } | |
| 245bd6f6 GU |
67 | |
| 68 | static inline int pm_clk_add_clk(struct device *dev, struct clk *clk) | |
| 69 | { | |
| 70 | return -EINVAL; | |
| 71 | } | |
| b5e8d269 RW |
72 | static inline void pm_clk_remove(struct device *dev, const char *con_id) |
| 73 | { | |
| 74 | } | |
| 75 | #define pm_clk_suspend NULL | |
| 76 | #define pm_clk_resume NULL | |
| 77 | #endif | |
| 78 | ||
| 79 | #ifdef CONFIG_HAVE_CLK | |
| 80 | extern void pm_clk_add_notifier(struct bus_type *bus, | |
| 81 | struct pm_clk_notifier_block *clknb); | |
| 82 | #else | |
| 83 | static inline void pm_clk_add_notifier(struct bus_type *bus, | |
| 84 | struct pm_clk_notifier_block *clknb) | |
| 85 | { | |
| 86 | } | |
| 87 | #endif | |
| 88 | ||
| 89 | #endif |