X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=drivers%2Fof%2Fof_i2c.c;h=fa65a2b2ae2e44737edb5d4e19daf767e331bd9c;hb=198030782cedf25391e67e7c88b04f87a5eb6563;hp=e1b0ad6e918f0bec0a843888e4de826d1cccf825;hpb=14a3c4ab0e58d143c7928c9eb2f2610205e13bf2;p=mv-sheeva.git

diff --git a/drivers/of/of_i2c.c b/drivers/of/of_i2c.c
index e1b0ad6e918..fa65a2b2ae2 100644
--- a/drivers/of/of_i2c.c
+++ b/drivers/of/of_i2c.c
@@ -66,4 +66,23 @@ void of_register_i2c_devices(struct i2c_adapter *adap,
 }
 EXPORT_SYMBOL(of_register_i2c_devices);
 
+static int of_dev_node_match(struct device *dev, void *data)
+{
+        return dev_archdata_get_node(&dev->archdata) == data;
+}
+
+/* must call put_device() when done with returned i2c_client device */
+struct i2c_client *of_find_i2c_device_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 to_i2c_client(dev);
+}
+EXPORT_SYMBOL(of_find_i2c_device_by_node);
+
 MODULE_LICENSE("GPL");