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From: "Pali Rohár" <pali.rohar@gmail.com>
To: Lars-Peter Clausen <lars@metafoo.de>
Cc: Felipe Contreras <felipe.contreras@gmail.com>,
	Anton Vorontsov <cbouatmailru@gmail.com>,
	Rodolfo Giometti <giometti@linux.it>,
	Grazvydas Ignotas <notasas@gmail.com>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 00/14] POWER: BQ27x00: New Properties, fixes, bq27000 support
Date: Mon, 7 Feb 2011 11:52:19 +0100	[thread overview]
Message-ID: <AANLkTinETqbYFZAF1=7239fTZg_yAsrCpCgaz7U87csj@mail.gmail.com> (raw)
In-Reply-To: <4D4F2A3C.9070407@metafoo.de>

2011/2/7 Lars-Peter Clausen <lars@metafoo.de>:
> 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?
>>
>
> Hi
>
> 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.
>
> - Lars
>

bq27x00 module does not support battery charging on Nokia N900. Only
can report battery state and some properties.

Battery Managment Entity (BME) is proprietary Nokia software which can
charge battery in Nokia N900. Alternative solution for charging
battery you can find on: http://enivax.net/jk/n900/charge21.sh.txt

-- 
Pali Rohár
pali.rohar@gmail.com

  parent reply	other threads:[~2011-02-07 10:53 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-02-06  0:47 Lars-Peter Clausen
2011-02-06  0:47 ` [PATCH 01/14] POWER: bq27x00: Add type property Lars-Peter Clausen
2011-02-06 16:43   ` Rodolfo Giometti
2011-02-06  0:47 ` [PATCH 02/14] POWER: bq27x00: Improve temperature precession Lars-Peter Clausen
2011-02-07  8:06   ` Rodolfo Giometti
2011-02-06  0:48 ` [PATCH 03/14] POWER: bq27x00: Fix current now property Lars-Peter Clausen
2011-02-07  8:07   ` Rodolfo Giometti
2011-02-06  0:48 ` [PATCH 04/14] POWER: bq27x00: Return -ENODEV for properties if the battery is not present Lars-Peter Clausen
2011-02-06 16:40   ` Rodolfo Giometti
2011-02-06  0:48 ` [PATCH 05/14] POWER: bq27x00: Prepare code for addition of bq27000 platform driver Lars-Peter Clausen
2011-02-07  8:09   ` Rodolfo Giometti
2011-02-06  0:48 ` [PATCH 06/14] POWER: bq27x00: Add bq27000 support Lars-Peter Clausen
2011-02-06  0:48 ` [PATCH 07/14] POWER: bq27X00: Cache battery registers Lars-Peter Clausen
2011-02-06  0:48 ` [PATCH 08/14] POWER: bq27x00: Poll battery state Lars-Peter Clausen
2011-02-06  0:48 ` [PATCH 09/14] POWER: bq27x00: Add new properties Lars-Peter Clausen
2011-02-06  0:48 ` [PATCH 10/14] POWER: bq27x00: Add MODULE_DEVICE_TABLE Lars-Peter Clausen
2011-02-06 16:49   ` Rodolfo Giometti
2011-02-06  0:48 ` [PATCH 11/14] POWER: bq27x00: Give more specific reports on battery status Lars-Peter Clausen
2011-02-06 16:38   ` Rodolfo Giometti
2011-02-06  0:48 ` [PATCH 12/14] POWER: bq27x00: Minor cleanups Lars-Peter Clausen
2011-02-06  0:48 ` [PATCH 13/14] POWER: bq27x00: Cleanup bq27x00_i2c_read Lars-Peter Clausen
2011-02-06  0:48 ` [PATCH 14/14] POWER: Ignore -ENODATA errors when generating a uevent Lars-Peter Clausen
2011-02-06 22:47 ` [PATCH 00/14] POWER: BQ27x00: New Properties, fixes, bq27000 support Felipe Contreras
2011-02-06 23:09   ` Lars-Peter Clausen
2011-02-07  0:00     ` Felipe Contreras
2011-02-07  0:12       ` Lars-Peter Clausen
2011-02-07 10:52     ` Pali Rohár [this message]
2011-02-07  0:58 ` Grazvydas Ignotas
2011-02-07  1:30   ` Lars-Peter Clausen
2011-02-08 11:40     ` Grazvydas Ignotas
2011-02-08 16:13       ` Lars-Peter Clausen
2011-02-08 16:28         ` Anton Vorontsov
2011-02-08 17:09           ` Lars-Peter Clausen

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