xref: /openbmc/linux/drivers/clk/clk.h (revision ae213c44)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * Copyright (C) 2013 Samsung Electronics Co., Ltd.
4  * Sylwester Nawrocki <s.nawrocki@samsung.com>
5  */
6 
7 struct clk_hw;
8 struct device;
9 struct of_phandle_args;
10 
11 #if defined(CONFIG_OF) && defined(CONFIG_COMMON_CLK)
12 struct clk_hw *of_clk_get_hw(struct device_node *np,
13 				    int index, const char *con_id);
14 #else /* !CONFIG_COMMON_CLK || !CONFIG_OF */
15 static inline struct clk_hw *of_clk_get_hw(struct device_node *np,
16 				    int index, const char *con_id)
17 {
18 	return ERR_PTR(-ENOENT);
19 }
20 #endif
21 
22 struct clk_hw *clk_find_hw(const char *dev_id, const char *con_id);
23 
24 #ifdef CONFIG_COMMON_CLK
25 struct clk *clk_hw_create_clk(struct device *dev, struct clk_hw *hw,
26 			      const char *dev_id, const char *con_id);
27 void __clk_put(struct clk *clk);
28 #else
29 /* All these casts to avoid ifdefs in clkdev... */
30 static inline struct clk *
31 clk_hw_create_clk(struct device *dev, struct clk_hw *hw, const char *dev_id,
32 		  const char *con_id)
33 {
34 	return (struct clk *)hw;
35 }
36 static struct clk_hw *__clk_get_hw(struct clk *clk)
37 {
38 	return (struct clk_hw *)clk;
39 }
40 static inline void __clk_put(struct clk *clk) { }
41 
42 #endif
43