xref: /openbmc/linux/drivers/clk/clk.h (revision be709d48)
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 #ifdef CONFIG_COMMON_CLK
23 struct clk *clk_hw_create_clk(struct device *dev, struct clk_hw *hw,
24 			      const char *dev_id, const char *con_id);
25 void __clk_put(struct clk *clk);
26 #else
27 /* All these casts to avoid ifdefs in clkdev... */
28 static inline struct clk *
29 clk_hw_create_clk(struct device *dev, struct clk_hw *hw, const char *dev_id,
30 		  const char *con_id)
31 {
32 	return (struct clk *)hw;
33 }
34 static struct clk_hw *__clk_get_hw(struct clk *clk)
35 {
36 	return (struct clk_hw *)clk;
37 }
38 static inline void __clk_put(struct clk *clk) { }
39 
40 #endif
41