linux-kernel - Re: [PATCH 6/9] power_supply: wm97xx_battery: use power_supply_get

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Date:   Tue, 24 Jan 2017 15:39:27 -0800
From:   Kevin Hilman <khilman@...libre.com>
To:     Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:     Robert Jarzmik <robert.jarzmik@...e.fr>,
        Lee Jones <lee.jones@...aro.org>,
        Sebastian Reichel <sre@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>, Daniel Mack <daniel@...que.org>,
        Haojian Zhuang <haojian.zhuang@...il.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        lkml <linux-kernel@...r.kernel.org>, linux-input@...r.kernel.org,
        patches@...nsource.wolfsonmicro.com,
        linux-pm <linux-pm@...r.kernel.org>, alsa-devel@...a-project.org,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        Stefan Agner <stefan@...er.ch>
Subject: Re: [PATCH 6/9] power_supply: wm97xx_battery: use power_supply_get_drvdata

Dmitry Torokhov <dmitry.torokhov@...il.com> writes:

> On Tue, Jan 24, 2017 at 08:31:59AM +0100, Robert Jarzmik wrote:
>> Kevin Hilman <khilman@...nel.org> writes:
>> 
>> > Hello,
>> >
>> > On Wed, Oct 26, 2016 at 12:41 PM, Robert Jarzmik <robert.jarzmik@...e.fr> wrote:
>> >> As the power supply framework provides a way to store and retrieve
>> >> private supply data, use it.
>> >>
>> >> In the process, change the platform data for wm97xx_battery from a
>> >> container of a single struct wm97xx_batt_pdata to the direct point to wm97xx_batt_pdata.
>> >>
>> >> Signed-off-by: Robert Jarzmik <robert.jarzmik@...e.fr>
>> >
>> > kernelci.org has been reporting that the tegra20-iris board has been
>> > failing in -next since next-20161123[1], and also in mainline
>> > v4.10-rc.  I finally took the time to bisect, and it pointed to this
>> > patch.  I verified that reverting $SUBJECT patch[2] on top of
>> > v4.10-rc5 fixes the problem.
>> >
>> > Kevin
>> >
>> > [1] https://kernelci.org/boot/id/5879a3fe59b5141534f6c3ac/
>> > [2] in mainline as commit: 6480af4915d6 power_supply: wm97xx_battery:
>> > use power_supply_get_drvdata
>> 
>> Hi Kevin,
>> 
>> There is a fix posted in here :
>> https://patchwork.kernel.org/patch/9499231/
>> 
>> I don't know if it's related, as I have no Oops signature nor any data to be
>> able to help further.

FWIW, that kernelci.org link above has full boot log available:
https://storage.kernelci.org/next/next-20170113/arm-tegra_defconfig/lab-baylibre-seattle/boot-tegra20-iris-512.html

> I picked up the patch from patchwork and will send it on to Linus in the
> next day or so.

I tested this on top of linus/master and the boot failure goes away.

Feel free to add,

Tested-by: Kevin Hilman <khilman@...libre.com>

Kevin