Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux

[~andy/linux] / drivers / of / of_i2c.c

diff --git a/drivers/of/of_i2c.c b/drivers/of/of_i2c.c
index 068488717f69b2867155e7f8596b519b39d2359f..1e173f3576743a702bef6125d2fc5d70bf612d24 100644 (file)
--- a/drivers/of/of_i2c.c
+++ b/drivers/of/of_i2c.c
@@ -94,4 +94,18 @@ struct i2c_client *of_find_i2c_device_by_node(struct device_node *node)
 }
 EXPORT_SYMBOL(of_find_i2c_device_by_node);
 
+/* must call put_device() when done with returned i2c_adapter device */
+struct i2c_adapter *of_find_i2c_adapter_by_node(struct device_node *node)
+{
+       struct device *dev;
+
+       dev = bus_find_device(&i2c_bus_type, NULL, node,
+                                        of_dev_node_match);
+       if (!dev)
+               return NULL;
+
+       return i2c_verify_adapter(dev);
+}
+EXPORT_SYMBOL(of_find_i2c_adapter_by_node);
+
 MODULE_LICENSE("GPL");