i2c: move OF helpers into the core
I2C of helpers used to live in of_i2c.c but experience (from SPI) shows
that it is much cleaner to have this in the core. This also removes a
circular dependency between the helpers and the core, and so we can
finally register child nodes in the core instead of doing this manually
in each driver. So, fix the drivers and documentation, too.
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
diff --git a/drivers/i2c/busses/i2c-powermac.c b/drivers/i2c/busses/i2c-powermac.c
index 06858d5..37e8cfa 100644
--- a/drivers/i2c/busses/i2c-powermac.c
+++ b/drivers/i2c/busses/i2c-powermac.c
@@ -440,7 +440,9 @@
adapter->algo = &i2c_powermac_algorithm;
i2c_set_adapdata(adapter, bus);
adapter->dev.parent = &dev->dev;
- adapter->dev.of_node = dev->dev.of_node;
+
+ /* Clear of_node to skip automatic registration of i2c child nodes */
+ adapter->dev.of_node = NULL;
rc = i2c_add_adapter(adapter);
if (rc) {
printk(KERN_ERR "i2c-powermac: Adapter %s registration "
@@ -451,9 +453,8 @@
printk(KERN_INFO "PowerMac i2c bus %s registered\n", adapter->name);
- /* Cannot use of_i2c_register_devices() due to Apple device-tree
- * funkyness
- */
+ /* Use custom child registration due to Apple device-tree funkyness */
+ adapter->dev.of_node = dev->dev.of_node;
i2c_powermac_register_devices(adapter, bus);
return 0;