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dtoc: Use the Fdt's class's phandle map

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Now that the Fdt class can map phandles to the associated nodes, use that
instead of a separate implementation.

Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Kever Yang <kever.yang@rock-chips.com>
This commit is contained in:
Simon Glass 2017-08-29 14:15:53 -06:00
parent 09264e0433
commit 72ab7c5e38
1 changed files with 3 additions and 13 deletions
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16
tools/dtoc/dtb_platdata.py
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@ -144,17 +144,14 @@ class DtbPlatdata(object):
_dtb_fname: Filename of the input device tree binary file
_valid_nodes: A list of Node object with compatible strings
_include_disabled: true to include nodes marked status = "disabled"
_phandle_nodes: A dict of nodes indexed by phandle number (1, 2...)
_outfile: The current output file (sys.stdout or a real file)
_lines: Stashed list of output lines for outputting in the future
_phandle_nodes: A dict of Nodes indexed by phandle (an integer)
"""
def __init__(self, dtb_fname, include_disabled):
self._fdt = None
self._dtb_fname = dtb_fname
self._valid_nodes = None
self._include_disabled = include_disabled
self._phandle_nodes = {}
self._outfile = None
self._lines = []
self._aliases = {}
@ -210,8 +207,7 @@ class DtbPlatdata(object):
def scan_node(self, root):
"""Scan a node and subnodes to build a tree of node and phandle info
This adds each node to self._valid_nodes and each phandle to
self._phandle_nodes.
This adds each node to self._valid_nodes.
Args:
root: Root node for scan
@ -222,10 +218,6 @@ class DtbPlatdata(object):
if (not self._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_nodes[phandle] = node
# recurse to handle any subnodes
self.scan_node(node)
@ -234,11 +226,9 @@ class DtbPlatdata(object):
"""Scan the device tree for useful information
This fills in the following properties:
_phandle_nodes: A dict of Nodes indexed by phandle (an integer)
_valid_nodes: A list of nodes we wish to consider include in the
platform data
"""
self._phandle_nodes = {}
self._valid_nodes = []
return self.scan_node(self._fdt.GetRoot())
@ -374,7 +364,7 @@ class DtbPlatdata(object):
value_it = iter(prop.value)
for phandle_cell, _ in zip(value_it, value_it):
phandle = fdt_util.fdt32_to_cpu(phandle_cell)
target_node = self._phandle_nodes[phandle]
target_node = self._fdt.phandle_to_node[phandle]
node.phandles.add(target_node)
@ -439,7 +429,7 @@ class DtbPlatdata(object):
for phandle_cell, id_cell in zip(value_it, value_it):
phandle = fdt_util.fdt32_to_cpu(phandle_cell)
id_num = fdt_util.fdt32_to_cpu(id_cell)
target_node = self._phandle_nodes[phandle]
target_node = self._fdt.phandle_to_node[phandle]
name = conv_name_to_c(target_node.name)
vals.append('{&%s%s, %d}' % (VAL_PREFIX, name, id_num))
else: