47 lines
1.3 KiB
C
47 lines
1.3 KiB
C
/*
|
|
* Generic I2C API implementation for PowerPC.
|
|
*
|
|
* Copyright (c) 2008 Jochen Friedrich <jochen@scram.de>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*/
|
|
|
|
#ifndef __LINUX_OF_I2C_H
|
|
#define __LINUX_OF_I2C_H
|
|
|
|
#if defined(CONFIG_OF_I2C) || defined(CONFIG_OF_I2C_MODULE)
|
|
#include <linux/i2c.h>
|
|
|
|
extern void of_i2c_register_devices(struct i2c_adapter *adap);
|
|
|
|
/* must call put_device() when done with returned i2c_client device */
|
|
extern struct i2c_client *of_find_i2c_device_by_node(struct device_node *node);
|
|
|
|
/* must call put_device() when done with returned i2c_adapter device */
|
|
extern struct i2c_adapter *of_find_i2c_adapter_by_node(
|
|
struct device_node *node);
|
|
|
|
#else
|
|
static inline void of_i2c_register_devices(struct i2c_adapter *adap)
|
|
{
|
|
return;
|
|
}
|
|
|
|
static inline struct i2c_client *of_find_i2c_device_by_node(struct device_node *node)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
/* must call put_device() when done with returned i2c_adapter device */
|
|
static inline struct i2c_adapter *of_find_i2c_adapter_by_node(
|
|
struct device_node *node)
|
|
{
|
|
return NULL;
|
|
}
|
|
#endif /* CONFIG_OF_I2C */
|
|
|
|
#endif /* __LINUX_OF_I2C_H */
|