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 ---
tools/dtoc/fdt.py | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-)
diff --git a/tools/dtoc/fdt.py b/tools/dtoc/fdt.py index 63a32ea2d7..49409a62ec 100644 --- a/tools/dtoc/fdt.py +++ b/tools/dtoc/fdt.py @@ -174,8 +174,9 @@ class Node: props: A dict of properties for this node, each a Prop object. Keyed by property name """ - def __init__(self, fdt, offset, name, path): + def __init__(self, fdt, parent, offset, name, path): self._fdt = fdt + self.parent = parent self._offset = offset self.name = name self.path = path @@ -217,7 +218,7 @@ class Node: sep = '' if self.path[-1] == '/' else '/' name = self._fdt._fdt_obj.get_name(offset) path = self.path + sep + name - node = Node(self._fdt, offset, name, path) + node = Node(self._fdt, self, offset, name, path) self.subnodes.append(node)
node.Scan() @@ -279,7 +280,7 @@ class Fdt:
TODO(sjg@chromium.org): Implement the 'root' parameter """ - self._root = self.Node(self, 0, '/', '/') + self._root = self.Node(self, None, 0, '/', '/') self._root.Scan()
def GetRoot(self): @@ -386,7 +387,7 @@ class Fdt: return libfdt.fdt_off_dt_struct(self._fdt) + offset
@classmethod - def Node(self, fdt, offset, name, path): + def Node(self, fdt, parent, offset, name, path): """Create a new node
This is used by Fdt.Scan() to create a new node using the correct @@ -394,11 +395,12 @@ class Fdt:
Args: fdt: Fdt object + parent: Parent node, or None if this is the root node offset: Offset of node name: Node name path: Full path to node """ - node = Node(fdt, offset, name, path) + node = Node(fdt, parent, offset, name, path) return node
def FdtScan(fname):