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If there is no USB-C interrupt activity for 2^31 microseconds, then
there are more than ALERT_STORM_MAX_COUNT events within 2^31
microsecond (instead of ALERT_STORM_INTERVAL), then the interrupt
storm would incorrectly detect a storm and disable the port due
to incorrect math regarding 32-bit overflow.
BRANCH=octopus and all branches with original storm detection
(CL:1650484)
BUG=b:144369187
TEST=unit test in CL
Change-Id: I90b888ac092f81d151538d6018771fb32f8e9c39
Signed-off-by: Jett Rink <jettrink@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/1925668
Commit-Queue: Denis Brockus <dbrockus@chromium.org>
Reviewed-by: Denis Brockus <dbrockus@chromium.org>
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