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path: root/drivers/core/device.c
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Diffstat (limited to 'drivers/core/device.c')
-rw-r--r--drivers/core/device.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/core/device.c b/drivers/core/device.c
index 32e80e82b59..9538874017a 100644
--- a/drivers/core/device.c
+++ b/drivers/core/device.c
@@ -514,3 +514,30 @@ int device_get_child_by_of_offset(struct udevice *parent, int seq,
ret = device_find_child_by_of_offset(parent, seq, &dev);
return device_get_device_tail(dev, ret, devp);
}
+
+int device_find_first_child(struct udevice *parent, struct udevice **devp)
+{
+ if (list_empty(&parent->child_head)) {
+ *devp = NULL;
+ } else {
+ *devp = list_first_entry(&parent->child_head, struct udevice,
+ sibling_node);
+ }
+
+ return 0;
+}
+
+int device_find_next_child(struct udevice **devp)
+{
+ struct udevice *dev = *devp;
+ struct udevice *parent = dev->parent;
+
+ if (list_is_last(&dev->sibling_node, &parent->child_head)) {
+ *devp = NULL;
+ } else {
+ *devp = list_entry(dev->sibling_node.next, struct udevice,
+ sibling_node);
+ }
+
+ return 0;
+}