clkdev.h 1.3 KB

12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455
  1. /*
  2. * include/linux/clkdev.h
  3. *
  4. * Copyright (C) 2008 Russell King.
  5. *
  6. * This program is free software; you can redistribute it and/or modify
  7. * it under the terms of the GNU General Public License version 2 as
  8. * published by the Free Software Foundation.
  9. *
  10. * Helper for the clk API to assist looking up a struct clk.
  11. */
  12. #ifndef __CLKDEV_H
  13. #define __CLKDEV_H
  14. #include <asm/clkdev.h>
  15. struct clk;
  16. struct device;
  17. struct clk_lookup {
  18. struct list_head node;
  19. const char *dev_id;
  20. const char *con_id;
  21. struct clk *clk;
  22. struct clk_hw *clk_hw;
  23. };
  24. #define CLKDEV_INIT(d, n, c) \
  25. { \
  26. .dev_id = d, \
  27. .con_id = n, \
  28. .clk = c, \
  29. }
  30. struct clk_lookup *clkdev_alloc(struct clk *clk, const char *con_id,
  31. const char *dev_fmt, ...);
  32. void clkdev_add(struct clk_lookup *cl);
  33. void clkdev_drop(struct clk_lookup *cl);
  34. struct clk_lookup *clkdev_create(struct clk *clk, const char *con_id,
  35. const char *dev_fmt, ...);
  36. void clkdev_add_table(struct clk_lookup *, size_t);
  37. int clk_add_alias(const char *, const char *, const char *, struct device *);
  38. int clk_register_clkdev(struct clk *, const char *, const char *, ...);
  39. int clk_register_clkdevs(struct clk *, struct clk_lookup *, size_t);
  40. #ifdef CONFIG_COMMON_CLK
  41. int __clk_get(struct clk *clk);
  42. void __clk_put(struct clk *clk);
  43. #endif
  44. #endif