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of/i2c: implement of_find_i2c_adapter_by_node

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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>
This commit is contained in:
Stephen Warren
2012-04-17 12:43:34 -06:00
committed by Wolfram Sang
parent 643dd09eb2
commit 0938643e53
2 changed files with 18 additions and 0 deletions
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4
include/linux/of_i2c.h
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@@ -20,6 +20,10 @@ 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)
{