Messages in this thread | | | Date | Mon, 07 Feb 2011 01:12:25 +0100 | From | Lars-Peter Clausen <> | Subject | Re: [PATCH 00/14] POWER: BQ27x00: New Properties, fixes, bq27000 support |
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On 02/07/2011 01:00 AM, Felipe Contreras wrote: > On Mon, Feb 7, 2011 at 1:09 AM, Lars-Peter Clausen <lars@metafoo.de> wrote: >> On 02/06/2011 11:47 PM, Felipe Contreras wrote: >>> Hi, >>> >>> On Sun, Feb 6, 2011 at 2:47 AM, Lars-Peter Clausen <lars@metafoo.de> wrote: >>>> This patch series contains a few updates for the bq27x00 driver: >>>> * Support for additional power supply properties >>>> * Support for the bq27000 battery which is identical to the bq27200 but is >>>> connected through the HDQ bus. >>>> * Adds a register cache to the driver and introduces polling the batteries state >>>> * Minor improvements and cleanups >>>> >>>> The last patch in this series is not specific to the bq27x00 driver but is >>>> required for uevents to be generated properly for this driver. >>>> The patch makes properties which return -ENODATA to be ignored when generating >>>> uevents. Previously in such a case uevent generation would have been aborted >>>> with an error. But since the bq27x00 return -ENODATA for the TIME_TO_FULL >>>> property when the battery is not charging and for the TIME_TO_EMPTY property >>>> when the battery is not discharging and at least one of them is always true >>>> uevent generation would always fail. >>>> >>>> This series has so far been tested with the bq27000 and the bq27200 battery, but >>>> not with the bq27500 battery, so it would be nice if somebody with a board >>>> containing such a battery could test the patches to make sure that there are no >>>> regressions. >>> >>> This might be a bit off-topic, but I have tried to get the battery on >>> the Nokia N900 working, and so far I'm only able to query the >>> remaining capacity, but not really to enabling charging. This is very >>> annoying, as I can only hack a certain amount of time, and then I have >>> to reflash, reboot, and wait for the batter to charge with the >>> official system (if there's enough power to flash). >>> >>> Do you have any hints how to do that? >> >> Sorry, I've never worked with the N900, so I have no idea. But Pali has tested this >> patch series on his N900, so he might have an idea. > > Well, it has a bq27200 AFAIK. >
It has, but that doesn't tell you anything about the charging circuit.
- Lars
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