Gwendal Grignou 1536bd5c62 driver: si114x: Handle overflow properly.
Overflow happens when raw value from ADC is greater than 0x7FFF.
When it happens, skip the result.

BRANCH=ryu,jerry
TEST=Without this code, the proximity sensor would show 22000in
instead of staying close to 0 when thumb is near sensor.
BUG=chrome-os-partner:53851

Change-Id: Id2182acbbf7b00157d9fee5d28bb61df4f166246
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/348300
2016-06-17 07:36:34 -07:00
2016-06-16 16:07:20 -07:00
2012-05-11 09:11:52 -07:00
2014-04-02 19:58:53 +00:00
2015-12-08 20:05:05 -08:00

For an overview of the Embedded Controller firmware, refer to

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

For instructions on building from source, refer to

http://www.chromium.org/chromium-os/ec-development/getting-started-building-ec-images-quickly
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