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
15#include <linux/slab.h>
16
17struct clk;
18struct clk_hw;
19struct device;
20
21struct clk_lookup {
22 struct list_head node;
23 const char *dev_id;
24 const char *con_id;
25 struct clk *clk;
26 struct clk_hw *clk_hw;
27};
28
29#define CLKDEV_INIT(d, n, c) \
30 { \
31 .dev_id = d, \
32 .con_id = n, \
33 .clk = c, \
34 }
35
36struct clk_lookup *clkdev_alloc(struct clk *clk, const char *con_id,
37 const char *dev_fmt, ...) __printf(3, 4);
38struct clk_lookup *clkdev_hw_alloc(struct clk_hw *hw, const char *con_id,
39 const char *dev_fmt, ...) __printf(3, 4);
40
41void clkdev_add(struct clk_lookup *cl);
42void clkdev_drop(struct clk_lookup *cl);
43
44struct clk_lookup *clkdev_create(struct clk *clk, const char *con_id,
45 const char *dev_fmt, ...) __printf(3, 4);
46struct clk_lookup *clkdev_hw_create(struct clk_hw *hw, const char *con_id,
47 const char *dev_fmt, ...) __printf(3, 4);
48
49void clkdev_add_table(struct clk_lookup *, size_t);
50int clk_add_alias(const char *, const char *, const char *, struct device *);
51
52int clk_register_clkdev(struct clk *, const char *, const char *);
53int clk_hw_register_clkdev(struct clk_hw *, const char *, const char *);
54
55int devm_clk_hw_register_clkdev(struct device *dev, struct clk_hw *hw,
56 const char *con_id, const char *dev_id);
57void devm_clk_release_clkdev(struct device *dev, const char *con_id,
58 const char *dev_id);
59#endif
60