dm: core: Add a function to find the first inactive child

[platform/kernel/u-boot.git] / include / dm / device.h

diff --git a/include/dm/device.h b/include/dm/device.h
index f873fc6..8479344 100644 (file)
--- a/include/dm/device.h
+++ b/include/dm/device.h
@@ -520,6 +520,21 @@ int device_find_first_child(struct udevice *parent, struct udevice **devp);
 int device_find_next_child(struct udevice **devp);
 
 /**
+ * device_find_first_inactive_child() - Find the first inactive child
+ *
+ * This is used to locate an existing child of a device which is of a given
+ * uclass.
+ *
+ * @parent:    Parent device to search
+ * @uclass_id: Uclass to look for
+ * @devp:      Returns device found, if any
+ * @return 0 if found, else -ENODEV
+ */
+int device_find_first_inactive_child(struct udevice *parent,
+                                    enum uclass_id uclass_id,
+                                    struct udevice **devp);
+
+/**
  * device_has_children() - check if a device has any children
  *
  * @dev:       Device to check