From: Tony Lindgren <tony@atomide.com>
To: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Cc: Pavel Machek <pavel@ucw.cz>,
Ladislav Michl <ladis@linux-mips.org>,
kernel list <linux-kernel@vger.kernel.org>,
linux-pm@vger.kernel.org,
linux-arm-kernel <linux-arm-kernel@lists.infradead.org>,
linux-omap@vger.kernel.org, nekit1000@gmail.com, mpartap@gmx.net,
merlijn@wizzup.org
Subject: Re: droid 4: connection refused from voltage_now
Date: Fri, 6 Jul 2018 04:23:15 -0700 [thread overview]
Message-ID: <20180706112315.GD112168@atomide.com> (raw)
In-Reply-To: <20180706111628.mvh46mg6ctqia3iz@earth.universe>
* Sebastian Reichel <sebastian.reichel@collabora.co.uk> [180706 11:19]:
> Hi,
>
> On Wed, Jul 04, 2018 at 09:52:38PM +0200, Pavel Machek wrote:
> > On Wed 2018-07-04 21:45:56, Ladislav Michl wrote:
> > > On Wed, Jul 04, 2018 at 07:11:56PM +0200, Pavel Machek wrote:
> > > > Hi!
> > > >
> > > > I started to use droid 4 as my primary phone... so I have battery
> > > > monitor running for hours... Once every few days it dies with
> > > > "connection refused" error reading battery's "voltage_now". I restart
> > > > it and it continues working...
> > >
> > > Ha! What exactly that "connection refused" means? Is it ECONNREFUSED (111)?
> > > I have custom at91 based board here with few custom power supply drivers
> > > and it sometimes ends with voltage_now of my driver being unreadable.
> > > (I modified userspace code and waiting what's in errno in case
> > > reading fails)
> >
> > It seems to be -110:
> > Jul 4 11:48:29 devuan kernel: [ 2908.602600] cpcap_adc cpcap_adc.0: error reading ADC: -110
> > Jul 4 11:48:29 devuan kernel: [ 2908.608123] cpcap_battery cpcap_battery.0: cpcap_battery_get_current failed: -110
> > Jul 4 11:48:30 devuan kernel: [ 2908.922576] cpcap_adc cpcap_adc.0: error reading ADC: -110
> > Jul 4 11:48:30 devuan kernel: [ 2908.928100] cpcap_battery cpcap_battery.0: cpcap_charger_battery_temperature failed: -110
> > Jul 4 11:48:30 devuan kernel: [ 2908.936340] power_supply battery: driver failed to report `voltage_now' property: -110
>
> The error above is obviously generated by cpcap_adc and only
> propageted by cpcap_battery. Have a look for -ETIMEDOUT (-110)
> in drivers/iio/adc/cpcap-adc.c.
Hmm yeah maybe first try to increase the timeout value a bit
and see if that helps.
If increasing the timeout does not help, try reverting commit
9d965236fe9b ("iio: adc: cpcap: Remove hung interrupt quirk").
Regards,
Tony
prev parent reply other threads:[~2018-07-06 11:23 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20180704171156.GA3158@amd>
2018-07-04 19:45 ` droid 4: connection refused from voltage_now Ladislav Michl
2018-07-04 19:52 ` Pavel Machek
2018-07-06 11:16 ` Sebastian Reichel
2018-07-06 11:23 ` Tony Lindgren [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20180706112315.GD112168@atomide.com \
--to=tony@atomide.com \
--cc=ladis@linux-mips.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-omap@vger.kernel.org \
--cc=linux-pm@vger.kernel.org \
--cc=merlijn@wizzup.org \
--cc=mpartap@gmx.net \
--cc=nekit1000@gmail.com \
--cc=pavel@ucw.cz \
--cc=sebastian.reichel@collabora.co.uk \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).