dtoc: update dtb_platdata to support cd-gpios

Currently dtoc does not support the property cd-gpios used to declare
the gpios for card detect in mmc.

This patch adds support to cd-gpios property.

Signed-off-by: Walter Lozano <walter.lozano@collabora.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

tools/dtoc/dtb_platdata.py

@@ -258,7 +258,7 @@ class DtbPlatdata(object):
         Return:
             Number of argument cells is this is a phandle, else None
         """
-        if prop.name in ['clocks']:
+        if prop.name in ['clocks', 'cd-gpios']:
             if not isinstance(prop.value, list):
                 prop.value = [prop.value]
             val = prop.value
@@ -278,11 +278,14 @@ class DtbPlatdata(object):
                 if not target:
                     raise ValueError("Cannot parse '%s' in node '%s'" %
                                      (prop.name, node_name))
-                prop_name = '#clock-cells'
-                cells = target.props.get(prop_name)
+                cells = None
+                for prop_name in ['#clock-cells', '#gpio-cells']:
+                    cells = target.props.get(prop_name)
+                    if cells:
+                        break
                 if not cells:
-                    raise ValueError("Node '%s' has no '%s' property" %
-                            (target.name, prop_name))
+                    raise ValueError("Node '%s' has no cells property" %
+                            (target.name))
                 num_args = fdt_util.fdt32_to_cpu(cells.value)
                 max_args = max(max_args, num_args)
                 args.append(num_args)
@@ -657,7 +660,8 @@ class DtbPlatdata(object):
         # dtv_dmc_at_xxx.clocks[0].node = DM_GET_DEVICE(clock_controller_at_xxx)
         self.buf('void dm_populate_phandle_data(void) {\n')
         for l in self._links:
-            self.buf('\t%s = DM_GET_DEVICE(%s);\n' % (l['var_node'], l['dev_name']))
+            self.buf('\t%s = DM_GET_DEVICE(%s);\n' %
+                     (l['var_node'], l['dev_name']))
         self.buf('}\n')
 
         self.out(''.join(self.get_buf()))

tools/dtoc/test_dtoc.py

@@ -485,7 +485,7 @@ void dm_populate_phandle_data(void) {
         output = tools.GetOutputFilename('output')
         with self.assertRaises(ValueError) as e:
             self.run_test(['struct'], dtb_file, output)
-        self.assertIn("Node 'phandle-target' has no '#clock-cells' property",
+        self.assertIn("Node 'phandle-target' has no cells property",
                       str(e.exception))
 
     def test_aliases(self):