Linux-RTC Archive on lore.kernel.org
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From: Andreas Kemnade <andreas@kemnade.info>
To: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: lee.jones@linaro.org, a.zummo@towertech.it,
	linux-kernel@vger.kernel.org, linux-rtc@vger.kernel.org,
	phh@phh.me, b.galvani@gmail.com, stefan@agner.ch,
	letux-kernel@openphoenux.org
Subject: Re: [PATCH 5/5] rtc: rtc-rc5t583: add ricoh rc5t619 RTC driver
Date: Tue, 29 Oct 2019 07:46:03 +0100
Message-ID: <20191029074603.499a3940@kemnade.info> (raw)
In-Reply-To: <20191023231717.GU3125@piout.net>

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On Thu, 24 Oct 2019 01:17:17 +0200
Alexandre Belloni <alexandre.belloni@bootlin.com> wrote:

[...]
> > > Is the RTC 1900-2099 or 2000-2199? Please include the ouput of rtc-range
> > > in the commit log:
> > > 
> > > https://git.kernel.org/pub/scm/linux/kernel/git/abelloni/rtc-tools.git/tree/rtc-range.c
> > >   
> > # ./rtc-range 
> > 
> > Testing 2000-02-28 23:59:59.
> > OK
> > 
> > Testing 2038-01-19 03:14:07.
> > OK
> > 
> > Testing 2069-12-31 23:59:59.
> > OK
> > 
> > Testing 2099-12-31 23:59:59.
> > KO RTC_RD_TIME returned 22 (line 138)
> > 
> > Testing 2100-02-28 23:59:59.
> > KO RTC_RD_TIME returned 22 (line 138)
> > 
> > Testing 2106-02-07 06:28:15.
> > OK
> > 
> > Testing 2262-04-11 23:47:16.
> > KO  Read back 2102-04-11 23:47:16.
> > 
> > I think it is 1900 to 2099.
> >   
> 
> It is, I'm very curious to know why it doesn't roll over properly from
> 2099-12-31 23:59:59 to 1900-01-01 00:00:00.
> 
It rolls over correcly, but rtc_valid_tm() bails out if
year < 70.

I am preparing a v2 of this series.

Regards,
Andreas

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  parent reply index

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-21  5:40 [PATCH 0/5] Add rtc support for rn5t618 mfd Andreas Kemnade
2019-10-21  5:41 ` [PATCH 1/5] mfd: rn5t618: prepare for irq handling Andreas Kemnade
2019-10-21  5:41 ` [PATCH 2/5] mfd: rn5t618: add irq support Andreas Kemnade
2019-10-21  9:07   ` Alexandre Belloni
2019-10-21 15:06     ` Andreas Kemnade
2019-10-21  5:41 ` [PATCH 3/5] mfd: rn5t618: add rtc related registers Andreas Kemnade
2019-10-21  5:41 ` [PATCH 4/5] mfd: rn5t618: add more subdevices Andreas Kemnade
2019-10-21  5:41 ` [PATCH 5/5] rtc: rtc-rc5t583: add ricoh rc5t619 RTC driver Andreas Kemnade
2019-10-21 10:15   ` Alexandre Belloni
2019-10-21 10:31     ` [Letux-kernel] " H. Nikolaus Schaller
2019-10-21 15:09       ` Alexandre Belloni
2019-10-21 21:13     ` Andreas Kemnade
2019-10-23 23:17       ` Alexandre Belloni
2019-10-24 20:25         ` Andreas Kemnade
2019-10-24 22:06           ` Alexandre Belloni
2019-10-29  6:46         ` Andreas Kemnade [this message]
2019-10-21 13:19   ` Stefan Agner
2019-10-21 13:50     ` Alexandre Belloni
2019-10-21 15:20       ` Andreas Kemnade

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