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the battery temperature field is only valid after we've actually managed to read the battery temperatore parameter. so, if the temp field is marked "BAD", don't even look at it. this addresses a case where we were removing charge current during the precharge phase - basically removing charge current from a battery that we're trying to power so we can talk to its I2C controller. BUG=b:79354967 BRANCH=none TEST=instrumented code to verify we don't request 0 amps in ST_PRECHARGE Change-Id: I3b40903506fa949c14ecaf577f134f31cfcf8fb7 Signed-off-by: Caveh Jalali <caveh@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/1066789 Commit-Ready: Caveh Jalali <caveh@google.com> Tested-by: Caveh Jalali <caveh@google.com> Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org>
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