[U-Boot] [RFC for-v2019.01 2/4] dm: MIGRATION: Add migration plan for DM_USB

[Tom Rini]

As much of the USB system has been migrated to DM now, formalize a
deadline for migration.

Cc: Marek Vasut <marex at denx.de>
Cc: Simon Glass <sjg at chromium.org>
Signed-off-by: Tom Rini <trini at konsulko.com>
---
 Makefile                       |  7 +++++++
 doc/driver-model/MIGRATION.txt | 10 ++++++++++
 2 files changed, 17 insertions(+)

diff --git a/Makefile b/Makefile
index 7005d76ad4d8..28ea46820b30 100644
--- a/Makefile
+++ b/Makefile
@@ -925,6 +925,13 @@ ifneq ($(CONFIG_DM_MMC)$(CONFIG_OF_CONTROL)$(CONFIG_BLK),yyy)
 	@echo "See doc/driver-model/MIGRATION.txt for more info."
 	@echo "===================================================="
 endif
+ifneq ($(CONFIG_DM_USB)$(CONFIG_OF_CONTROL)$(CONFIG_BLK),yyy)
+	@echo "===================== WARNING ======================"
+	@echo "This board does not use CONFIG_DM_USB. Please update"
+	@echo "the board to use CONFIG_DM_USB before the v2019.07 release."
+	@echo "See doc/driver-model/MIGRATION.txt for more info."
+	@echo "===================================================="
+endif
 	@# Check that this build does not use CONFIG options that we do not
 	@# know about unless they are in Kconfig. All the existing CONFIG
 	@# options are whitelisted, so new ones should not be added.
diff --git a/doc/driver-model/MIGRATION.txt b/doc/driver-model/MIGRATION.txt
index 71c26571828a..0b763f72a453 100644
--- a/doc/driver-model/MIGRATION.txt
+++ b/doc/driver-model/MIGRATION.txt
@@ -15,6 +15,16 @@ The subsystem itself has been converted and maintainers should submit patches
 switching over to using CONFIG_DM_MMC and other base driver model options in
 time for inclusion in the 2019.04 rerelease.
 
+CONFIG_DM_USB
+-------------
+
+Status: In progress
+Deadline: 2019.07
+
+The subsystem itself has been converted along with many of the host controller
+and maintainers should submit patches switching over to using CONFIG_DM_USB and
+other base driver model options in time for inclusion in the 2019.07 rerelease.
+
 CONFIG_BLK
 ----------
 
-- 
2.7.4