From 524dd45e0d10ece227457ec88517f58000c2a24b Mon Sep 17 00:00:00 2001
From: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Date: Wed, 22 Feb 2017 19:06:04 +0100
Subject: [PATCH] dtoc: make ScanTree recurse into subnodes
Previously, dtoc could only process the top-level nodes which led to
device nodes in hierarchical trees to be ignored. E.g. the mmc0 node
in the following example would be ignored, as only the soc node was
processed:
/ {
soc {
mmc0 {
/* ... */
};
};
};
This introduces a recursive helper method ScanNode, which is used by
ScanTree to recursively parse the entire tree hierarchy.
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
---
tools/dtoc/dtoc.py | 19 ++++++++++++++++++-
1 file changed, 18 insertions(+), 1 deletion(-)
diff --git a/tools/dtoc/dtoc.py b/tools/dtoc/dtoc.py
index bf67ec80ca..afc5171c2a 100755
--- a/tools/dtoc/dtoc.py
+++ b/tools/dtoc/dtoc.py
@@ -172,6 +172,21 @@ class DtbPlatdata:
"""
self.fdt = fdt_select.FdtScan(self._dtb_fname)
+ def ScanNode(self, root):
+ for node in root.subnodes:
+ if 'compatible' in node.props:
+ status = node.props.get('status')
+ if (not options.include_disabled and not status or
+ status.value != 'disabled'):
+ self._valid_nodes.append(node)
+ phandle_prop = node.props.get('phandle')
+ if phandle_prop:
+ phandle = phandle_prop.GetPhandle()
+ self._phandle_node[phandle] = node
+
+ # recurse to handle any subnodes
+ self.ScanNode(node);
+
def ScanTree(self):
"""Scan the device tree for useful information
@@ -180,8 +195,10 @@ class DtbPlatdata:
_valid_nodes: A list of nodes we wish to consider include in the
platform data
"""
- node_list = []
self._phandle_node = {}
+ self._valid_nodes = []
+ return self.ScanNode(self.fdt.GetRoot());
+
for node in self.fdt.GetRoot().subnodes:
if 'compatible' in node.props:
status = node.props.get('status')
--
2.39.5