diff options
| author | Jon Smirl <jonsmirl@gmail.com> | 2009-01-09 15:49:06 -0700 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2009-01-09 15:49:06 -0700 |
| commit | 2526c151c31358aec66b63921dd712bbec5ee0cb (patch) | |
| tree | ee1cd5878c6970d469e348f2440c5d0074def379 /include | |
| parent | f5020384e4fa8ab9397aa6fa176e61e9bf7947f7 (diff) | |
| download | lwn-2526c151c31358aec66b63921dd712bbec5ee0cb.tar.gz lwn-2526c151c31358aec66b63921dd712bbec5ee0cb.zip | |
drivers/of: Add the of_find_i2c_device_by_node function.
The of_find_i2c_device_by_node function allows you to follow a
reference in the device tree to an i2c device node and then locate
the linux device instantiated by the device tree. Example use: an I2S
bus driver finding the i2c_device instance for a codec described by
a device tree node.
This was waiting for Anton's i2c patches that were just added.
Signed-off-by: Jon Smirl <jonsmirl@gmail.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/of_i2c.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/of_i2c.h b/include/linux/of_i2c.h index bd2a870ec296..34974b5a76f7 100644 --- a/include/linux/of_i2c.h +++ b/include/linux/of_i2c.h @@ -17,4 +17,7 @@ void of_register_i2c_devices(struct i2c_adapter *adap, struct device_node *adap_node); +/* must call put_device() when done with returned i2c_client device */ +struct i2c_client *of_find_i2c_device_by_node(struct device_node *node); + #endif /* __LINUX_OF_I2C_H */ |