kernel_optimize_test/include/linux/of_i2c.h
Stephen Warren 0938643e53 of/i2c: implement of_find_i2c_adapter_by_node
This finds the struct i2c_adapter * for a given device tree node. Just
like of_find_i2c_device_by_node.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-05-12 14:28:17 +02:00

35 lines
1.0 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;
}
#endif /* CONFIG_OF_I2C */
#endif /* __LINUX_OF_I2C_H */