drivers/clk/clk.h

   1 /*
   2  * linux/drivers/clk/clk.h
   3  *
   4  * Copyright (C) 2013 Samsung Electronics Co., Ltd.
   5  * Sylwester Nawrocki <s.nawrocki@samsung.com>
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License version 2 as
   9  * published by the Free Software Foundation.
  10  */
  11
  12 struct clk_hw;
  13
  14 #if defined(CONFIG_OF) && defined(CONFIG_COMMON_CLK)
  15 struct clk *__of_clk_get_from_provider(struct of_phandle_args *clkspec,
  16                                        const char *dev_id, const char *con_id);
  17 #endif
  18
  19 #ifdef CONFIG_COMMON_CLK
  20 struct clk *__clk_create_clk(struct clk_hw *hw, const char *dev_id,
  21                              const char *con_id);
  22 void __clk_free_clk(struct clk *clk);
  23 int __clk_get(struct clk *clk);
  24 void __clk_put(struct clk *clk);
  25 #else
  26 /* All these casts to avoid ifdefs in clkdev... */
  27 static inline struct clk *
  28 __clk_create_clk(struct clk_hw *hw, const char *dev_id, const char *con_id)
  29 {
  30         return (struct clk *)hw;
  31 }
  32 static inline void __clk_free_clk(struct clk *clk) { }
  33 static struct clk_hw *__clk_get_hw(struct clk *clk)
  34 {
  35         return (struct clk_hw *)clk;
  36 }
  37 static inline int __clk_get(struct clk *clk) { return 1; }
  38 static inline void __clk_put(struct clk *clk) { }
  39
  40 #endif