Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1/*
2 * Generic I2C API implementation for PowerPC.
3 *
4 * Copyright (c) 2008 Jochen Friedrich <jochen@scram.de>
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 as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 */
11
12#ifndef __LINUX_OF_I2C_H
13#define __LINUX_OF_I2C_H
14
15#if defined(CONFIG_OF_I2C) || defined(CONFIG_OF_I2C_MODULE)
16#include <linux/i2c.h>
17
18extern void of_i2c_register_devices(struct i2c_adapter *adap);
19
20/* must call put_device() when done with returned i2c_client device */
21extern struct i2c_client *of_find_i2c_device_by_node(struct device_node *node);
22
23/* must call put_device() when done with returned i2c_adapter device */
24extern struct i2c_adapter *of_find_i2c_adapter_by_node(
25 struct device_node *node);
26
27#else
28static inline void of_i2c_register_devices(struct i2c_adapter *adap)
29{
30 return;
31}
32
33static inline struct i2c_client *of_find_i2c_device_by_node(struct device_node *node)
34{
35 return NULL;
36}
37
38/* must call put_device() when done with returned i2c_adapter device */
39static inline struct i2c_adapter *of_find_i2c_adapter_by_node(
40 struct device_node *node)
41{
42 return NULL;
43}
44#endif /* CONFIG_OF_I2C */
45
46#endif /* __LINUX_OF_I2C_H */