From: Pavel Machek <pavel@ucw.cz>
To: Tony Lindgren <tony@atomide.com>
Cc: Sebastian Reichel <sre@kernel.org>,
linux-pm@vger.kernel.org, linux-omap@vger.kernel.org,
Rob Herring <robh+dt@kernel.org>,
Merlijn Wajer <merlijn@wizzup.org>
Subject: Re: [PATCH] power: supply: cpcap-charger: Limit voltage to 4.2V for battery
Date: Sun, 13 Oct 2019 13:27:14 +0200 [thread overview]
Message-ID: <20191013112714.GA5653@amd> (raw)
In-Reply-To: <20191009203355.5622-1-tony@atomide.com>
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Hi!
> There have been some cases of droid4 battery bulging that seem to be
> related to being left connected to the charger for several weeks.
>
> It is suspected that the 4.35V charge voltage configured for the battery
> is too much in the long run, so lets limit the charge voltage to 4.2V.
> It could also be that the batteries are just getting old.
>
> We don't really want to just change the charge voltage to 4.2V as Android
> may have charged the battery to 3.51.V as pointed out by Pavel
> Machek.
Now I'm confused. What is 3.51V? Is it typo for 4.35V?
> + /*
> + * If battery voltage is higher than charge voltage, it may have been
> + * charged to 3.51V by Android. Try again in 10 minutes.
> + */
Ok, so maybe it is not a typo. I'm confused.
Note that I'd prefer not to see this in -stable.
Best regards,
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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next prev parent reply other threads:[~2019-10-13 11:27 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-09 20:33 [PATCH] power: supply: cpcap-charger: Limit voltage to 4.2V for battery Tony Lindgren
2019-10-09 20:56 ` Tony Lindgren
2019-10-13 11:27 ` Pavel Machek [this message]
2019-10-15 17:22 ` Tony Lindgren
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