From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5A27CC4360C for ; Sun, 13 Oct 2019 11:27:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3A10D206A3 for ; Sun, 13 Oct 2019 11:27:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728932AbfJML1T (ORCPT ); Sun, 13 Oct 2019 07:27:19 -0400 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:41063 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728620AbfJML1T (ORCPT ); Sun, 13 Oct 2019 07:27:19 -0400 Received: by atrey.karlin.mff.cuni.cz (Postfix, from userid 512) id 2D39680249; Sun, 13 Oct 2019 13:27:02 +0200 (CEST) Date: Sun, 13 Oct 2019 13:27:14 +0200 From: Pavel Machek To: Tony Lindgren Cc: Sebastian Reichel , linux-pm@vger.kernel.org, linux-omap@vger.kernel.org, Rob Herring , Merlijn Wajer Subject: Re: [PATCH] power: supply: cpcap-charger: Limit voltage to 4.2V for battery Message-ID: <20191013112714.GA5653@amd> References: <20191009203355.5622-1-tony@atomide.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="wRRV7LY7NUeQGEoC" Content-Disposition: inline In-Reply-To: <20191009203355.5622-1-tony@atomide.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org --wRRV7LY7NUeQGEoC Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable 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. >=20 > 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. >=20 > 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 --=20 (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html --wRRV7LY7NUeQGEoC Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAl2jChIACgkQMOfwapXb+vICnwCgkUgzBNRBnmBrxU6C+qVloTtw 74UAoIhxPfH76o/dwAWvPI/rSAMRlPTe =Dcv8 -----END PGP SIGNATURE----- --wRRV7LY7NUeQGEoC--