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board-support
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linux-4.9.59+gitAUTOINC+a75d8e9305-ga75d8e9305
/
drivers
/
devfreq
/
governor.h

governor.h 1.4 KB
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  1. /*
    2. 

  2.  * governor.h - internal header for devfreq governors.
    3. 

  3.  *
    4. 

  4.  * Copyright (C) 2011 Samsung Electronics
    5. 

  5.  *	MyungJoo Ham <myungjoo.ham@samsung.com>
    6. 

  6.  *
    7. 

  7.  * This program is free software; you can redistribute it and/or modify
    8. 

  8.  * it under the terms of the GNU General Public License version 2 as
    9. 

  9.  * published by the Free Software Foundation.
    10. 

  10.  *
    11. 

  11.  * This header is for devfreq governors in drivers/devfreq/
    12. 

  12.  */
    13. 

  13. 

  14. #ifndef _GOVERNOR_H
    15. 

  15. #define _GOVERNOR_H
    16. 

  16. 

  17. #include <linux/devfreq.h>
    18. 

  18. 

  19. #define to_devfreq(DEV)	container_of((DEV), struct devfreq, dev)
    20. 

  20. 

  21. /* Devfreq events */
    22. 

  22. #define DEVFREQ_GOV_START			0x1
    23. 

  23. #define DEVFREQ_GOV_STOP			0x2
    24. 

  24. #define DEVFREQ_GOV_INTERVAL			0x3
    25. 

  25. #define DEVFREQ_GOV_SUSPEND			0x4
    26. 

  26. #define DEVFREQ_GOV_RESUME			0x5
    27. 

  27. 

  28. /* Caution: devfreq->lock must be locked before calling update_devfreq */
    29. 

  29. extern int update_devfreq(struct devfreq *devfreq);
    30. 

  30. 

  31. extern void devfreq_monitor_start(struct devfreq *devfreq);
    32. 

  32. extern void devfreq_monitor_stop(struct devfreq *devfreq);
    33. 

  33. extern void devfreq_monitor_suspend(struct devfreq *devfreq);
    34. 

  34. extern void devfreq_monitor_resume(struct devfreq *devfreq);
    35. 

  35. extern void devfreq_interval_update(struct devfreq *devfreq,
    36. 

  36. 					unsigned int *delay);
    37. 

  37. 

  38. extern int devfreq_add_governor(struct devfreq_governor *governor);
    39. 

  39. extern int devfreq_remove_governor(struct devfreq_governor *governor);
    40. 

  40. 

  41. extern int devfreq_update_status(struct devfreq *devfreq, unsigned long freq);
    42. 

  42. 

  43. #endif /* _GOVERNOR_H */
    44.