Merge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux

Pull device tree updates from Grant Likely:
 "The branch contains the following device tree changes the v3.17 merge
  window:

  Group changes to the device tree.  In preparation for adding device
  tree overlay support, OF_DYNAMIC is reworked so that a set of device
  tree changes can be prepared and applied to the tree all at once.
  OF_RECONFIG notifiers see the most significant change here so that
  users always get a consistent view of the tree.  Notifiers generation
  is moved from before a change to after it, and notifiers for a group
  of changes are emitted after the entire block of changes have been
  applied

  Automatic console selection from DT.  Console drivers can now use
  of_console_check() to see if the device node is specified as a console
  device.  If so then it gets added as a preferred console.  UART
  devices get this support automatically when uart_add_one_port() is
  called.

  DT unit tests no longer depend on pre-loaded data in the device tree.
  Data is loaded dynamically at the start of unit tests, and then
  unloaded again when the tests have completed.

  Also contains a few bugfixes for reserved regions and early memory
  setup"

* tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux: (21 commits)
  of: Fixing OF Selftest build error
  drivers: of: add automated assignment of reserved regions to client devices
  of: Use proper types for checking memory overflow
  of: typo fix in __of_prop_dup()
  Adding selftest testdata dynamically into live tree
  of: Add todo tasklist for Devicetree
  of: Transactional DT support.
  of: Reorder device tree changes and notifiers
  of: Move dynamic node fixups out of powerpc and into common code
  of: Make sure attached nodes don't carry along extra children
  of: Make devicetree sysfs update functions consistent.
  of: Create unlocked versions of node and property add/remove functions
  OF: Utility helper functions for dynamic nodes
  of: Move CONFIG_OF_DYNAMIC code into a separate file
  of: rename of_aliases_mutex to just of_mutex
  of/platform: Fix of_platform_device_destroy iteration of devices
  of: Migrate of_find_node_by_name() users to for_each_node_by_name()
  tty: Update hypervisor tty drivers to use core stdout parsing code.
  arm/versatile: Add the uart as the stdout device.
  of: Enable console on serial ports specified by /chosen/stdout-path
  ...

arch/powerpc/platforms/powermac/feature.c

@@ -2805,25 +2805,20 @@ set_initial_features(void)
 		/* Enable GMAC for now for PCI probing. It will be disabled
 		 * later on after PCI probe
 		 */
-		np = of_find_node_by_name(NULL, "ethernet");
-		while(np) {
+		for_each_node_by_name(np, "ethernet")
 			if (of_device_is_compatible(np, "K2-GMAC"))
 				g5_gmac_enable(np, 0, 1);
-			np = of_find_node_by_name(np, "ethernet");
-		}
 
 		/* Enable FW before PCI probe. Will be disabled later on
 		 * Note: We should have a batter way to check that we are
 		 * dealing with uninorth internal cell and not a PCI cell
 		 * on the external PCI. The code below works though.
 		 */
-		np = of_find_node_by_name(NULL, "firewire");
-		while(np) {
+		for_each_node_by_name(np, "firewire") {
 			if (of_device_is_compatible(np, "pci106b,5811")) {
 				macio_chips[0].flags |= MACIO_FLAG_FW_SUPPORTED;
 				g5_fw_enable(np, 0, 1);
 			}
-			np = of_find_node_by_name(np, "firewire");
 		}
 	}
 #else /* CONFIG_PPC64 */
@@ -2834,13 +2829,11 @@ set_initial_features(void)
 		/* Enable GMAC for now for PCI probing. It will be disabled
 		 * later on after PCI probe
 		 */
-		np = of_find_node_by_name(NULL, "ethernet");
-		while(np) {
+		for_each_node_by_name(np, "ethernet") {
 			if (np->parent
 			    && of_device_is_compatible(np->parent, "uni-north")
 			    && of_device_is_compatible(np, "gmac"))
 				core99_gmac_enable(np, 0, 1);
-			np = of_find_node_by_name(np, "ethernet");
 		}
 
 		/* Enable FW before PCI probe. Will be disabled later on
@@ -2848,8 +2841,7 @@ set_initial_features(void)
 		 * dealing with uninorth internal cell and not a PCI cell
 		 * on the external PCI. The code below works though.
 		 */
-		np = of_find_node_by_name(NULL, "firewire");
-		while(np) {
+		for_each_node_by_name(np, "firewire") {
 			if (np->parent
 			    && of_device_is_compatible(np->parent, "uni-north")
 			    && (of_device_is_compatible(np, "pci106b,18") ||
@@ -2858,18 +2850,16 @@ set_initial_features(void)
 				macio_chips[0].flags |= MACIO_FLAG_FW_SUPPORTED;
 				core99_firewire_enable(np, 0, 1);
 			}
-			np = of_find_node_by_name(np, "firewire");
 		}
 
 		/* Enable ATA-100 before PCI probe. */
 		np = of_find_node_by_name(NULL, "ata-6");
-		while(np) {
+		for_each_node_by_name(np, "ata-6") {
 			if (np->parent
 			    && of_device_is_compatible(np->parent, "uni-north")
 			    && of_device_is_compatible(np, "kauai-ata")) {
 				core99_ata100_enable(np, 1);
 			}
-			np = of_find_node_by_name(np, "ata-6");
 		}
 
 		/* Switch airport off */