dm: tag: add some document
authorAKASHI Takahiro <takahiro.akashi@linaro.org>
Fri, 15 Apr 2022 07:15:36 +0000 (16:15 +0900)
committerHeinrich Schuchardt <heinrich.schuchardt@canonical.com>
Sat, 23 Apr 2022 20:05:34 +0000 (22:05 +0200)
commitb77324d83159db003c978f46303223b30cd1e041
tree67b44e8491cb7a458cf1d494ac8efcf7deb88707
parenta806f334018cdb0be8f007fa482b695ef136b061
dm: tag: add some document

Some basic stuff about tag support is explained under
doc/devlop/driver-model.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
doc/develop/driver-model/design.rst