Re: Motorola Droid 4 -- Stopping charger when battery is full

[Ivaylo Dimitrov]

On 13.04.23 г. 12:34 ч., Pavel Machek wrote:
> Hi!
>
> > > I complained that "battery life is very poor" with leste. It seems to
> > > be combination of several factors.
> > >
> > > 1) I was using very old battery
> > >
> > > 2) My charger is detected as "USB", not as "AC"
> >
> > And this is because there is no working charger detection in the driver, so
> > initial current limit is hard-coded to 500mA.
>
> Aha, thanks, makes sense.
>
> > > According to my measurements "CPCAP_REG_CRM_FET_OVRD |
> > > CPCAP_REG_CRM_FET_CTRL" results in battery discharding and 0A drawn
> > > frmo the USB.  "CPCAP_REG_CRM_FET_OVRD" is phone powered from USB,
> > > with battery more or less disconnected (<12mA), which is what we want
> > > in battery full situation.
> >
> > What will happen if phone needs to draw more than N mA (N is the set charger
> > current limit)?
>
> We may run over the limit, AFAICT. I guess one solution would be to
> only do this when limit is high enough...
>
> With current setup, phone will not boot if battery is empty, so this
> needs quite urgent solution.
>
> I updated my leste, and now have:
>
> user@devuan-droid4:~/g/droid4-linux$ uname -a
> Linux devuan-droid4 6.1.9 #1 SMP PREEMPT Mon Mar 20 15:16:53 UTC 2023 armv7l GNU/Linux
> user@devuan-droid4:~/g$ apt show linux-image-omap
> Package: linux-image-omap
> Version: 6.1.8.0-1+m7
>
> Where can I find corresponding sources?

https://github.com/maemo-leste/droid4-linux/tree/maemo-6.1.y

> Best regards,
> 							Pavel