Vic Yang 2dc01cea42 stm32f: Fix adc_read_all_channels()
We need to clear DMA status before starting another transaction.
Otherwise, we get incorrect values.

BRANCH=Ryu
BUG=chrome-os-partner:33971
TEST=Repeatedly run 'adc' on Ryu.

Change-Id: Iadec58bda142c8224536c4d1e7725aaf57e8a77c
Signed-off-by: Vic Yang <victoryang@google.com>
Reviewed-on: https://chromium-review.googlesource.com/240282
Tested-by: Vic Yang <victoryang@chromium.org>
Trybot-Ready: Vic Yang <victoryang@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Commit-Queue: Vic Yang <victoryang@chromium.org>
2015-01-13 18:48:24 +00:00
2015-01-13 18:48:24 +00:00
2014-03-31 22:45:09 +00:00
2012-05-11 09:11:52 -07:00
2015-01-08 23:55:58 +00:00
2015-01-07 08:45:30 +00:00
2014-04-02 19:58:53 +00:00
2014-05-15 05:20:14 +00:00

For an overview of the Embedded Controller firmware, refer to

http://www.chromium.org/chromium-os/2014-firmware-summit
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