i2c: implement of_find_i2c_adapter_by_node
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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@ -405,6 +405,17 @@ struct i2c_adapter *i2c_get_adapter(int busnum)
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return NULL;
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return NULL;
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}
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}
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struct i2c_adapter *of_find_i2c_adapter_by_node(struct device_node *node)
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{
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struct i2c_adapter *adap;
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list_for_each_entry(adap, &adapter_list, list)
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if (adap->dev.device_node == node)
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return adap;
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return NULL;
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}
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/**
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/**
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* i2c_add_numbered_adapter - declare i2c adapter, use static bus number
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* i2c_add_numbered_adapter - declare i2c adapter, use static bus number
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* @adapter: the adapter to register (with adap->nr initialized)
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* @adapter: the adapter to register (with adap->nr initialized)
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@ -133,6 +133,7 @@ static inline int i2c_register_board_info(int busnum,
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#endif
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#endif
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extern int i2c_add_numbered_adapter(struct i2c_adapter *adapter);
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extern int i2c_add_numbered_adapter(struct i2c_adapter *adapter);
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struct i2c_adapter *i2c_get_adapter(int busnum);
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struct i2c_adapter *i2c_get_adapter(int busnum);
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struct i2c_adapter *of_find_i2c_adapter_by_node(struct device_node *node);
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/* For devices that use several addresses, use i2c_new_dummy() to make
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/* For devices that use several addresses, use i2c_new_dummy() to make
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* client handles for the extra addresses.
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* client handles for the extra addresses.
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