blob: 9b8848b33d2c59f6f403a04cca609d42146b848a [file] [log] [blame]
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +01001/*
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 <asm/clkdev.h>
16
17struct clk;
Stephen Boyde4f1b492016-02-08 14:59:49 -080018struct clk_hw;
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +010019struct device;
20
21struct clk_lookup {
22 struct list_head node;
23 const char *dev_id;
24 const char *con_id;
Shefali Jain0dc6e782017-11-27 13:06:27 +053025 int of_idx;
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +010026 struct clk *clk;
Russell Kingd5622a92015-03-02 15:45:41 +000027 struct clk_hw *clk_hw;
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +010028};
29
Padmavathi Venna196a57c2011-10-13 12:56:32 +010030#define CLKDEV_INIT(d, n, c) \
31 { \
32 .dev_id = d, \
33 .con_id = n, \
34 .clk = c, \
35 }
36
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +010037struct clk_lookup *clkdev_alloc(struct clk *clk, const char *con_id,
Nicolas Iooss8db14862015-07-17 16:23:42 -070038 const char *dev_fmt, ...) __printf(3, 4);
Stephen Boyde4f1b492016-02-08 14:59:49 -080039struct clk_lookup *clkdev_hw_alloc(struct clk_hw *hw, const char *con_id,
40 const char *dev_fmt, ...) __printf(3, 4);
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +010041
42void clkdev_add(struct clk_lookup *cl);
43void clkdev_drop(struct clk_lookup *cl);
44
Russell King25689992015-03-02 15:40:29 +000045struct clk_lookup *clkdev_create(struct clk *clk, const char *con_id,
Nicolas Iooss8db14862015-07-17 16:23:42 -070046 const char *dev_fmt, ...) __printf(3, 4);
Stephen Boyde4f1b492016-02-08 14:59:49 -080047struct clk_lookup *clkdev_hw_create(struct clk_hw *hw, const char *con_id,
48 const char *dev_fmt, ...) __printf(3, 4);
Russell King25689992015-03-02 15:40:29 +000049
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +010050void clkdev_add_table(struct clk_lookup *, size_t);
Russell Kingb3d8d7e2015-03-09 10:43:04 +000051int clk_add_alias(const char *, const char *, const char *, struct device *);
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +010052
Kees Cook416dd132016-01-26 01:21:26 +010053int clk_register_clkdev(struct clk *, const char *, const char *);
Stephen Boyde4f1b492016-02-08 14:59:49 -080054int clk_hw_register_clkdev(struct clk_hw *, const char *, const char *);
Russell Kinge9d7f402012-05-02 09:30:32 +010055
Sylwester Nawrockiac2df522013-08-24 20:10:41 +020056#ifdef CONFIG_COMMON_CLK
57int __clk_get(struct clk *clk);
58void __clk_put(struct clk *clk);
59#endif
60
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +010061#endif