linux-kernel - Re: [PATCH 1/3] ARM: dts: omap5-board-common: enable rtc and charging of backup battery

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Message-Id: <CCB763BE-5D1F-4A53-BF9A-C12C08A6EFC4@goldelico.com>
Date:	Fri, 8 Jan 2016 20:31:40 +0100
From:	"H. Nikolaus Schaller" <hns@...delico.com>
To:	Tony Lindgren <tony@...mide.com>
Cc:	Laxman Dewangan <ldewangan@...dia.com>, Nishanth Menon <nm@...com>,
	Benoît Cousson <bcousson@...libre.com>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Russell King <linux@....linux.org.uk>,
	linux-omap <linux-omap@...r.kernel.org>,
	devicetree@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
	Marek Belisko <marek@...delico.com>,
	Gražvydas Ignotas <notasas@...il.com>
Subject: Re: [PATCH 1/3] ARM: dts: omap5-board-common: enable rtc and charging of backup battery


Am 08.01.2016 um 20:04 schrieb Tony Lindgren <tony@...mide.com>:

> * H. Nikolaus Schaller <hns@...delico.com> [160108 10:33]:
>> Am 08.01.2016 um 19:15 schrieb Tony Lindgren <tony@...mide.com>:
>>> * H. Nikolaus Schaller <hns@...delico.com> [160108 09:50]:
>>> 
>>>> So I think it is something which is unstable in 4.4-rc8 that is (probably) fixed in
>>>> linux-next and unrelated to this DT patch.
>>>> 
>>>> But I have no hint or idea what it is.
>>> 
>>> Or something hangs the RTC? And the back-up battery has to drain to
>>> reset the RTC somehow?
>> 
>> Indeed it could be something like this. I already suspected that it depends
>> on boot order of some components.
>> 
>> But you get the /dev/rtc and /sys/class/rtc nodes? This is what this patch
>> should enable (and not fix potential driver issues).
> 
> Yes no problems with $subject patch. It's just the we also need
> to figure out why RTC does not work :)

Yes indeed. I can not focus on that at the moment but as soon as we have
the new Pyra handheld devices (with OMAP5+Palmas) running, there will
be more developers to look at it.

BR,
Nikolaus