linux-kernel - Re: Battery charging, battery status on Nokia N9, N950

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Message-ID: <20171107195912.GA3274@amd>
Date:   Tue, 7 Nov 2017 20:59:12 +0100
From:   Pavel Machek <pavel@....cz>
To:     pali.rohar@...il.com, sre@...nel.org,
        kernel list <linux-kernel@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-omap@...r.kernel.org, tony@...mide.com, khilman@...nel.org,
        aaro.koskinen@....fi, ivo.g.dimitrov.75@...il.com,
        patrikbachan@...il.com, serge@...lyn.com, abcloriens@...il.com,
        clayton@...ftyguy.net, martijn@...xit.nl,
        sakari.ailus@...ux.intel.com
Subject: Re: Battery charging, battery status on Nokia N9, N950

Hi!

> 
> > I'm fighting with battery status & battery charging on Nokia
> > N9/N950. https://elinux.org/N950 contains enough info to get battery
> > status (and below is first attempt at kernel implementation), but I'm
> > not sure what needs to be done to charge the battery (or at least
> > power phone from USB).
> 
> Nemo recovery system (2824336 Jul 25  2016 zImage-moslo) seems to
> either charge phone from USB or at power it from USB.
> 
> But 4.13 does not; it seems there are two separate issue.
> 
> First, something needs to be done to enable system power from the
> USB. I'm not sure what that one would be :-(. Then, it should be
> possible to ask bq24153 to charge the battery.

If someone has schematics or pointer to them.. for N9 or N950, that
would be useful :-).

Thanks,
									Pavel

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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