xref: /linux/drivers/clk/clk.h (revision 73e0e496afdac9a5190eb3b9c51fdfebcc14ebd4)
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_by_clkspec(struct of_phandle_args *clkspec);
16 struct clk *__of_clk_get_from_provider(struct of_phandle_args *clkspec,
17 				       const char *dev_id, const char *con_id);
18 void of_clk_lock(void);
19 void of_clk_unlock(void);
20 #endif
21 
22 #ifdef CONFIG_COMMON_CLK
23 struct clk *__clk_create_clk(struct clk_hw *hw, const char *dev_id,
24 			     const char *con_id);
25 void __clk_free_clk(struct clk *clk);
26 #else
27 /* All these casts to avoid ifdefs in clkdev... */
28 static inline struct clk *
29 __clk_create_clk(struct clk_hw *hw, const char *dev_id, const char *con_id)
30 {
31 	return (struct clk *)hw;
32 }
33 static inline void __clk_free_clk(struct clk *clk) { }
34 static struct clk_hw *__clk_get_hw(struct clk *clk)
35 {
36 	return (struct clk_hw *)clk;
37 }
38 
39 #endif
40