1daa8a0b20
If CONFIG_OF_I2C and CONFIG_OF_I2C_MODULE are undefined no declaration of of_find_i2c_device_by_node and of_find_i2c_adapter_by_node will be available. Add dummy inline functions to avoid compilation breakage. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
46 lines
1.3 KiB
C
46 lines
1.3 KiB
C
/*
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* Generic I2C API implementation for PowerPC.
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*
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* Copyright (c) 2008 Jochen Friedrich <jochen@scram.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef __LINUX_OF_I2C_H
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#define __LINUX_OF_I2C_H
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#if defined(CONFIG_OF_I2C) || defined(CONFIG_OF_I2C_MODULE)
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#include <linux/i2c.h>
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extern void of_i2c_register_devices(struct i2c_adapter *adap);
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/* must call put_device() when done with returned i2c_client device */
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extern struct i2c_client *of_find_i2c_device_by_node(struct device_node *node);
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/* must call put_device() when done with returned i2c_adapter device */
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extern struct i2c_adapter *of_find_i2c_adapter_by_node(
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struct device_node *node);
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#else
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static inline void of_i2c_register_devices(struct i2c_adapter *adap)
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{
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return;
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}
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static inline struct i2c_client *of_find_i2c_device_by_node(struct device_node *node)
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{
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return NULL;
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}
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/* must call put_device() when done with returned i2c_adapter device */
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static inline struct i2c_adapter *of_find_i2c_adapter_by_node(
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struct device_node *node)
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{
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return NULL;
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}
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#endif /* CONFIG_OF_I2C */
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#endif /* __LINUX_OF_I2C_H */
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