dm: core: Add device_foreach_child()

We have a 'safe' version of this function but sometimes it is not needed.
Add a normal version too and update a few places that can use it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/include/dm/device.h b/include/dm/device.h
index 27a6d7b9fdb..d1210429e92 100644
--- a/include/dm/device.h
+++ b/include/dm/device.h
@@ -680,6 +680,15 @@ static inline bool device_is_on_pci_bus(struct udevice *dev)
 	list_for_each_entry_safe(pos, next, &parent->child_head, sibling_node)
 
 /**
+ * device_foreach_child() - iterate through child devices
+ *
+ * @pos: struct udevice * for the current device
+ * @parent: parent device to scan
+ */
+#define device_foreach_child(pos, parent)	\
+	list_for_each_entry(pos, &parent->child_head, sibling_node)
+
+/**
  * dm_scan_fdt_dev() - Bind child device in a the device tree
  *
  * This handles device which have sub-nodes in the device tree. It scans all