dm: serial: Add a migration deadline for serial
This probably should have been done a while back since it is a core
system. Very few boards remain to be migrated.
Addd a migration deadline for a year out.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/doc/develop/driver-model/migration.rst b/doc/develop/driver-model/migration.rst
index 10f474e..5a60436 100644
--- a/doc/develop/driver-model/migration.rst
+++ b/doc/develop/driver-model/migration.rst
@@ -118,3 +118,11 @@
There is only one method to implement, unless you want to support bootstage,
in which case you need an early timer also. For example drivers, see
sandbox_timer.c and rockchip_timer.c
+
+CONFIG_DM_SERIAL
+----------------
+Deadline: 2023.04
+
+The serial subsystem has supported the driver model since late 2014.
+Maintainers should submit patches switching over to using CONFIG_DM_SERIAL and
+other base driver model options in time for inclusion in the 2022.10 release.