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Add driver for TI INA3221 voltage sensors.
Puff has several of these devices, and the EC has access to them.
BRANCH=none
BUG=b:144132145
TEST=EC buildall, tests
Change-Id: I37efd6ce7f154339f002c633e5daf6a18fef05aa
Signed-off-by: Andrew McRae <amcrae@google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/1903629
Reviewed-by: Shelley Chen <shchen@chromium.org>
Reviewed-by: Andrew McRae <amcrae@chromium.org>
Tested-by: Andrew McRae <amcrae@chromium.org>
Commit-Queue: Andrew McRae <amcrae@chromium.org>
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