Re: bq2415x_charger.c: battery is discharged (fast, 224mA) when it should be charged

Pavel Machek
2015-02-01T19:17:50Z

On Sun 2015-02-01 12:38:13, Pavel Machek wrote:
> Hi!
>
> On Sun 2015-02-01 11:08:16, Pali Rohár wrote:
> > On Sunday 01 February 2015 10:47:02 Pavel Machek wrote:
> > > Hi!
> > >
> > > I connected N900 with full battery using USB. For some reason,
> > > charge limit was set to 100mA, battery was "full" and was
> > > discharging:
> > >
> >
> > Make sure you have loaded some usb gadget. Without it battery
> > charging via dedicated wallcharger (and probably also usb host
> > charger) does not working. g_nokia should be OK.
>
> I had that loaded (was running from root over USB at the moment.)
>
> > Try also compiling kernel with CONFIG_USB_GADGET_VBUS_DRAW=500
> >
> > Also for charger autodetection you need to have loaded
> > isp1704_charer.ko module (or compiled into kernel).
> >
> > And make sure that isp1704_charger is loaded before module
> > bq2415x_charger (there is some probe defer, no idea if it works
> > as excepted).
>
> It seems bq2415x_charger is the problem: it all started working when I
> did echo reset > mode...

It does not switch from "Full" to "Charging", and it does not seem to
switch from "Charging" to "Full", either...:

root@n900:/my/tui/ofone# ./tefone
Ready.
Battery 4.152 V 4.161 V 95 % 0 % 0 / 0 / 2056 mAh Charging 40.876 / 650 / 500 mA
Battery 4.152 V 4.161 V 95 % 0 % 0 / 0 / 2056 mAh Charging 48.195 / 650 / 500 mA
Battery 4.152 V 4.164 V 95 % 0 % 0 / 0 / 2056 mAh Charging 43.554 / 650 / 500 mA
Battery 4.14 V 4.164 V 94 % 0 % 0 / 0 / 2056 mAh Charging 40.162 / 650 / 500 mA
Battery 4.158 V 4.172 V 95 % 0 % 0 / 0 / 2056 mAh Charging 54.621 / 650 / 500 mA
Battery 4.158 V 4.175 V 95 % 0 % 0 / 0 / 2056 mAh Charging 33.736 / 650 / 500 mA
aHello, world
Battery 4.164 V 4.175 V 96 % 0 % 0 / 0 / 2056 mAh Charging 2.142 / 650 / 500 mA
Battery 4.164 V 4.177 V 96 % 0 % 0 / 0 / 2056 mAh Charging 19.992 / 650 / 500 mA
Battery 4.158 V 4.177 V 95 % 0 % 0 / 0 / 2056 mAh Charging 18.207 / 650 / 500 mA
Battery 4.158 V 4.177 V 95 % 0 % 0 / 0 / 2056 mAh Charging 17.493 / 650 / 500 mA
Battery 4.164 V 4.177 V 96 % 0 % 0 / 0 / 2056 mAh Charging 16.243 / 650 / 500 mA
Battery 4.158 V 4.177 V 95 % 0 % 0 / 0 / 2056 mAh Charging 16.243 / 650 / 500 mA