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>
diff --git a/include/dm/device.h b/include/dm/device.h
index 544734e..cf785f7 100644
--- a/include/dm/device.h
+++ b/include/dm/device.h
@@ -593,7 +593,7 @@
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_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.
diff --git a/include/dm/root.h b/include/dm/root.h
index 42510b1..780f269 100644
--- a/include/dm/root.h
+++ b/include/dm/root.h
@@ -131,4 +131,12 @@
static inline int dm_remove_devices_flags(uint flags) { return 0; }
#endif
+/**
+ * dm_get_stats() - Get some stats for driver mode
+ *
+ * @device_countp: Returns total number of devices that are bound
+ * @uclass_countp: Returns total number of uclasses in use
+ */
+void dm_get_stats(int *device_countp, int *uclass_countp);
+
#endif
diff --git a/include/dm/uclass-internal.h b/include/dm/uclass-internal.h
index 49808c5..fb0edcc 100644
--- a/include/dm/uclass-internal.h
+++ b/include/dm/uclass-internal.h
@@ -307,6 +307,13 @@
#endif
/**
+ * uclass_get_count() - Get the number of uclasses
+ *
+ * Returns the number of uclasses instantiated in driver model
+ */
+int uclass_get_count(void);
+
+/**
* uclass_find() - Find uclass by its id
*
* @id: Id to serach for