From: Tony Lindgren <tony@atomide.com>
To: "H. Nikolaus Schaller" <hns@goldelico.com>
Cc: "Laxman Dewangan" <ldewangan@nvidia.com>,
"Nishanth Menon" <nm@ti.com>,
"Benoît Cousson" <bcousson@baylibre.com>,
"Rob Herring" <robh+dt@kernel.org>,
"Pawel Moll" <pawel.moll@arm.com>,
"Mark Rutland" <mark.rutland@arm.com>,
"Ian Campbell" <ijc+devicetree@hellion.org.uk>,
"Kumar Gala" <galak@codeaurora.org>,
"Russell King" <linux@arm.linux.org.uk>,
linux-omap <linux-omap@vger.kernel.org>,
devicetree@vger.kernel.org, LKML <linux-kernel@vger.kernel.org>,
"Marek Belisko" <marek@goldelico.com>
Subject: Re: [PATCH 1/3] ARM: dts: omap5-board-common: enable rtc and charging of backup battery
Date: Fri, 8 Jan 2016 10:15:51 -0800 [thread overview]
Message-ID: <20160108181551.GX12777@atomide.com> (raw)
In-Reply-To: <66F37918-EA7F-4D83-8B5F-A6B5C0CD7623@goldelico.com>
* H. Nikolaus Schaller <hns@goldelico.com> [160108 09:50]:
> Tony,
> it is strange. It now works under unknown conditions - without any obvoius change.
>
> Am 06.01.2016 um 18:09 schrieb Tony Lindgren <tony@atomide.com>:
> >
> > OK. It could be also some .config change with something built-in?
>
> I have compared /proc/config.gz from both systems and /sys/firmware/fdt
> with no significant and obvious change.
>
> Then I booted the 4.4-rc8 again and this time it worked.
>
> To verify, I have checked out linux-next this morning, cherry-picked this palmas
> rtc patch, compiled with omap2plus defconfig, and used the omap5-uevm.dtb. And
> hwclock works after doing a modprobe rtc_palmas.
Weird. No luck here with current linux next or anything.
> Then I did the same with official v4.4-rc8 and hwclock hangs. And now our
> 4.4-rc8 production kernel hangs again as well. Even if I use the
> DTB from the 4.3 kernel.
I'm not seeing the RTC second increase in u-boot either, this
should show it:
# i2c md 0x48 0x100
Of course the rtc may not be enabled in u-boot unlike for x15.
> 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?
Regards,
Tony
next prev parent reply other threads:[~2016-01-08 18:15 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-05 12:01 [PATCH 0/3] Enable twl603x-GPADC for some OMAP4/OMAP5 boards and Palmas-RTC for OMAP5 H. Nikolaus Schaller
[not found] ` <cover.1451995297.git.hns-xXXSsgcRVICgSpxsJD1C4w@public.gmane.org>
2016-01-05 12:01 ` [PATCH 1/3] ARM: dts: omap5-board-common: enable rtc and charging of backup battery H. Nikolaus Schaller
2016-01-05 23:40 ` Nishanth Menon
[not found] ` <568C5451.8070709-l0cyMroinI0@public.gmane.org>
2016-01-06 1:00 ` Tony Lindgren
2016-01-06 8:11 ` H. Nikolaus Schaller
[not found] ` <8FE6954B-6411-4593-9CE5-717A469A6AA8-xXXSsgcRVICgSpxsJD1C4w@public.gmane.org>
2016-01-06 16:41 ` Tony Lindgren
2016-01-06 16:47 ` H. Nikolaus Schaller
[not found] ` <2AC46952-3758-458A-B0A5-1794C207BD4C-xXXSsgcRVICgSpxsJD1C4w@public.gmane.org>
2016-01-06 17:09 ` Tony Lindgren
2016-01-08 17:49 ` H. Nikolaus Schaller
2016-01-08 18:15 ` Tony Lindgren [this message]
[not found] ` <20160108181551.GX12777-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2016-01-08 18:32 ` H. Nikolaus Schaller
2016-01-08 19:04 ` Tony Lindgren
2016-01-08 19:31 ` H. Nikolaus Schaller
2016-01-11 20:24 ` Tony Lindgren
[not found] ` <20160111202421.GA12777-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2016-01-12 0:09 ` Tony Lindgren
[not found] ` <20160112000917.GC12777-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2016-01-12 13:30 ` H. Nikolaus Schaller
2016-01-12 21:27 ` H. Nikolaus Schaller
[not found] ` <E4C8F6CA-37C1-406F-9804-46055253BED9-xXXSsgcRVICgSpxsJD1C4w@public.gmane.org>
2016-01-12 21:37 ` Nishanth Menon
[not found] ` <5695722B.90202-l0cyMroinI0@public.gmane.org>
2016-01-12 22:13 ` Tony Lindgren
2016-01-13 10:25 ` H. Nikolaus Schaller
2016-01-13 14:55 ` Nishanth Menon
[not found] ` <56966558.1070608-l0cyMroinI0@public.gmane.org>
2016-01-13 15:14 ` Grygorii Strashko
2016-01-13 16:48 ` Tony Lindgren
2016-01-13 17:12 ` Grygorii Strashko
2016-01-13 17:38 ` Nishanth Menon
2016-01-13 18:00 ` H. Nikolaus Schaller
2016-01-13 18:23 ` Nishanth Menon
2016-01-13 17:29 ` Nishanth Menon
2016-01-13 18:00 ` Tony Lindgren
[not found] ` <20160113180006.GJ12777-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2016-01-13 18:08 ` H. Nikolaus Schaller
[not found] ` <2B99611A-5D2E-4D17-A17D-0150516109FD-xXXSsgcRVICgSpxsJD1C4w@public.gmane.org>
2016-01-13 18:31 ` Nishanth Menon
[not found] ` <56969800.5010206-l0cyMroinI0@public.gmane.org>
2016-01-13 18:44 ` H. Nikolaus Schaller
2016-01-13 19:05 ` Nishanth Menon
2016-01-13 19:22 ` Grygorii Strashko
2016-01-13 19:40 ` Tony Lindgren
2016-01-13 22:32 ` Nishanth Menon
2016-01-14 10:01 ` Keerthy
[not found] ` <56977211.8070206-l0cyMroinI0@public.gmane.org>
2016-01-14 17:39 ` Nishanth Menon
[not found] ` <5697DD4C.8010701-l0cyMroinI0@public.gmane.org>
2016-01-14 18:35 ` Tony Lindgren
2016-01-15 14:33 ` H. Nikolaus Schaller
2016-01-15 15:47 ` Tony Lindgren
[not found] ` <20160115154645.GA3904-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2016-01-15 17:10 ` Tony Lindgren
2016-01-15 18:11 ` H. Nikolaus Schaller
2016-08-25 2:43 ` Matthijs van Duin
2016-01-13 18:18 ` Nishanth Menon
2016-01-06 7:42 ` H. Nikolaus Schaller
[not found] ` <B2CEA92E-5F60-43C1-8265-F7C66FBD90D6-xXXSsgcRVICgSpxsJD1C4w@public.gmane.org>
2016-01-06 8:13 ` Laxman Dewangan
2016-01-06 14:36 ` Nishanth Menon
[not found] ` <568D2657.6050400-l0cyMroinI0@public.gmane.org>
2016-01-06 19:34 ` Rob Herring
[not found] ` <CAL_Jsq+rfU0EuoRi1Jkq2QYQjK0_LOW8PALatYccpbJiPPZh-g-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-01-06 19:53 ` Nishanth Menon
2016-01-08 19:33 ` Rob Herring
2016-01-05 12:01 ` [PATCH 2/3] ARM: dts: omap5-board-common: enable iio gpadc for Palmas H. Nikolaus Schaller
2016-01-05 12:01 ` [PATCH 3/3] ARM: dts: twl6030: add gpadc H. Nikolaus Schaller
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