dm: core: Allow getting some basic stats

Add a function that returns some basic stats about driver model. For now
we only have two.

Signed-off-by: Simon Glass <sjg@chromium.org>

1 files changed, 10 insertions, 1 deletions

diff --git a/include/dm/device.h b/include/dm/device.h
index 544734ecb31..cf785f7ae21 100644
--- a/include/dm/device.h
+++ b/include/dm/device.h
@@ -593,7 +593,7 @@ int device_get_child(const struct udevice *parent, int index,
 		     struct udevice **devp);
 
 /**
- * device_get_child_count() - Get the available child count of a device
+ * device_get_child_count() - Get the child count of a device
  *
  * Returns the number of children to a device.
  *
@@ -602,6 +602,15 @@ int device_get_child(const struct udevice *parent, int index,
 int device_get_child_count(const struct udevice *parent);
 
 /**
+ * device_get_decendent_count() - Get the total number of decendents of a device
+ *
+ * Returns the total number of decendents, including all children
+ *
+ * @parent:	Parent device to check
+ */
+int device_get_decendent_count(const struct udevice *parent);
+
+/**
  * device_find_child_by_seq() - Find a child device based on a sequence
  *
  * This searches for a device with the given seq.