linux-4.4.1/of_platform_populate() の変更点

• 追加された行はこの色です。
• 削除された行はこの色です。
• linux-4.4.1/of_platform_populate() へ行く。
• linux-4.4.1/of_platform_populate() の差分を削除

*参照元 [#g8288de4]
#backlinks

*説明 [#efbccee8]
-パス: [[linux-4.4.1/drivers/of/platform.c]]

-FIXME: これは何？
--説明


**引数 [#k5c770d8]
-struct device_node *root
--
--[[linux-4.4.1/device_node]]
-const struct of_device_id *matches
--
--[[linux-4.4.1/of_device_id]]
-const struct of_dev_auxdata *lookup
--
--[[linux-4.4.1/of_dev_auxdata]]
-struct device *parent
--
--[[linux-4.4.1/device]]


**返り値 [#te89905a]
-int
--


**参考 [#hb30b6dd]


*実装 [#c1364f3b]
 /**
  * of_platform_populate() - Populate platform_devices from device tree data
  * @root: parent of the first level to probe or NULL for the root of the tree
  * @matches: match table, NULL to use the default
  * @lookup: auxdata table for matching id and platform_data with device nodes
  * @parent: parent to hook devices from, NULL for toplevel
  *
  * Similar to of_platform_bus_probe(), this function walks the device tree
  * and creates devices from nodes.  It differs in that it follows the modern
  * convention of requiring all device nodes to have a 'compatible' property,
  * and it is suitable for creating devices which are children of the root
  * node (of_platform_bus_probe will only create children of the root which
  * are selected by the @matches argument).
  *
  * New board support should be using this function instead of
  * of_platform_bus_probe().
  *
  * Returns 0 on success, < 0 on failure.
  */
 int of_platform_populate(struct device_node *root,
                         const struct of_device_id *matches,
                         const struct of_dev_auxdata *lookup,
                         struct device *parent)
 {
         struct device_node *child;
         int rc = 0;
 
-
--[[linux-4.4.1/device_node]]

         root = root ? of_node_get(root) : of_find_node_by_path("/");
         if (!root)
                 return -EINVAL;
 
-
--[[linux-4.4.1/of_node_get()]]
--[[linux-4.4.1/of_find_node_by_path()]]

         for_each_child_of_node(root, child) {
                 rc = of_platform_bus_create(child, matches, lookup, parent, true);
                 if (rc) {
                         of_node_put(child);
                         break;
                 }
         }
         of_node_set_flag(root, OF_POPULATED_BUS);
 
-
--[[linux-4.4.1/for_each_child_of_node()]]
--[[linux-4.4.1/of_platform_bus_create()]]
--[[linux-4.4.1/of_node_put()]]
--[[linux-4.4.1/of_node_set_flag()]]

         of_node_put(root);
         return rc;
 }
 EXPORT_SYMBOL_GPL(of_platform_populate);
-
--[[linux-4.4.1/EXPORT_SYMBOL_GPL()]]


*コメント [#ve8d4361]