[Gta04-owner] [PATCH] twl4030_charger: add software controlled linear charging mode.

Dr. H. Nikolaus Schaller hns at goldelico.com
Fri Sep 27 07:39:09 CEST 2013

Hi Andreas,

Am 26.09.2013 um 20:09 schrieb Andreas Kemnade:

> Hi,
> On Thu, 26 Sep 2013 15:19:40 +0200
> "Dr. H. Nikolaus Schaller" <hns at goldelico.com> wrote:
>> Hi Ben,
>> thanks for the patch. I have applied it and now the /sys/.../lin file is back again.
>> One question (maybe to Andreas): "on" sets the variable do_lin=1 and "auto" resets it if it was on. But "off" does not set it to 0. Is this intended behaviour?
> yes, that is intended behaviour:
> off= manual off (and no auto on, prevented by do_lin still =0 )

 I think the code is missing something (as indicated). If you set it to "on" and then to "off" do_lin will still be =1! To reset this variableto 0 you have to set it to "on" and then to "auto". At least this is how I understand the code. So what I do not see is setting it to "off" prevents auto mode by setting do_lin = 0 if it was set before.

> auto=automatic charge mode
> on = manual on 
> btw: it is possible to keep the gta04 in suspend mode with do_lin=on when power supply goes on and off. Tested on my bike on the very hilly and windy roads around the North Cape.

That is a nice story we should push more to the public! Maybe we add it to the commit message "has been tested on a bike on the very hilly and windy roads around the North Cape" :)

Should we try to get this patch into mainline or would you do it yourself?


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