dm: Tidy up four minor code nits

There is a spelling mistake and two functions are missing comments
altogether. Also the flags declaration is correct, but doesn't follow
style. Finally, the uclass_get_device() function has some errors in
its documentation.

Fix these problems.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Marek Vasut <marex@denx.de>
diff --git a/include/dm/lists.h b/include/dm/lists.h
index 7feba4b..49d87e6 100644
--- a/include/dm/lists.h
+++ b/include/dm/lists.h
@@ -32,8 +32,28 @@
  */
 struct uclass_driver *lists_uclass_lookup(enum uclass_id id);
 
+/**
+ * lists_bind_drivers() - search for and bind all drivers to parent
+ *
+ * This searches the U_BOOT_DEVICE() structures and creates new devices for
+ * each one. The devices will have @parent as their parent.
+ *
+ * @parent: parent driver (root)
+ * @early_only: If true, bind only drivers with the DM_INIT_F flag. If false
+ * bind all drivers.
+ */
 int lists_bind_drivers(struct udevice *parent);
 
+/**
+ * lists_bind_fdt() - bind a device tree node
+ *
+ * This creates a new device bound to the given device tree node, with
+ * @parent as its parent.
+ *
+ * @parent: parent driver (root)
+ * @blob: device tree blob
+ * @offset: offset of this device tree node
+ */
 int lists_bind_fdt(struct udevice *parent, const void *blob, int offset);
 
 #endif