diff --git a/include/dm/device.h b/include/dm/device.h
index 7ada720..725e313 100644
--- a/include/dm/device.h
+++ b/include/dm/device.h
@@ -131,6 +131,13 @@
  * @child_head: List of children of this device
  * @sibling_node: Next device in list of all devices
  * @flags: Flags for this device DM_FLAG_...
+ * @sqq: Allocated sequence number for this device (-1 = none). This is set up
+ * when the device is bound and is unique within the device's uclass. If the
+ * device has an alias in the devicetree then that is used to set the sequence
+ * number. Otherwise, the next available number is used. Sequence numbers are
+ * used by certain commands that need device to be numbered (e.g. 'mmc dev')
+ *
+ * The following two fields are deprecated:
  * @req_seq: Requested sequence number for this device (-1 = any)
  * @seq: Allocated sequence number for this device (-1 = none). This is set up
  * when the device is probed and will be unique within the device's uclass.
@@ -156,6 +163,7 @@
 	struct list_head child_head;
 	struct list_head sibling_node;
 	uint32_t flags;
+	int sqq;
 	int req_seq;
 	int seq;
 #ifdef CONFIG_DEVRES