tree 39211826a1100083a9d5a1454f84811defc80128
parent 93c94b889b3aa7e21e0f90f0c5a6dc7034b371aa
author Simon Glass <sjg@chromium.org> 1504037747 -0600
committer Simon Glass <sjg@chromium.org> 1505474679 -0600

dtoc: Adjust Node to record its parent

We need to be able to search back up the tree for #address-cells and
 #size-cells. Record the parent of each node to make this easier.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tested-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tested-by: Kever Yang <kever.yang@rock-chips.com>