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authorMike Rapoport <mike@compulab.co.il>2009-06-09 01:09:45 +0400
committerAnton Vorontsov <cbouatmailru@gmail.com>2009-06-09 01:12:38 +0400
commita35d01a5d2ac533edab94a8e3b6749ab213c91c5 (patch)
treef29c751f52713f826ec9ed00c48f5339a0cd2d9b /Documentation/video4linux/bttv
parentc6f4a42de60b981dd210de01cd3e575835e3158e (diff)
downloadop-kernel-dev-a35d01a5d2ac533edab94a8e3b6749ab213c91c5.zip
op-kernel-dev-a35d01a5d2ac533edab94a8e3b6749ab213c91c5.tar.gz
da9030_battery: Fix race between event handler and monitor
There are cases when charging monitor and the event handler try to change the charger state simultaneously. For instance, a charger is connected to the system, there's the detection event and the event handler tries to enable charging. It is possible that the periodic charging monitor runs at the same time and it still thinks there's no external charger. So it tries to disable the charging. As the result, even if the conditions necessary to charge the battery hold, there will be no actual charging. The patch changes the event handler so that instead of enabling/ disabling the charger immediately it would rather make the monitor run. The monitor code then decides what should be the charger state. Signed-off-by: Mike Rapoport <mike@compulab.co.il> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
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