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Groups > linux.debian.bugs.dist > #966571

Bug#932845: TS-219 RTC issue with Debian Buster

From Oliver Hartkopp <socketcan@hartkopp.net>
Newsgroups linux.debian.bugs.dist, linux.debian.kernel
Subject Bug#932845: TS-219 RTC issue with Debian Buster
Date 2019-07-26 12:40 +0200
Message-ID <yo5NM-3ED-1@gated-at.bofh.it> (permalink)
References (4 earlier) <yo39f-1Y1-9@gated-at.bofh.it> <yo4RH-34Q-1@gated-at.bofh.it> <yo51n-38q-3@gated-at.bofh.it> <yn9JL-ZU-1@gated-at.bofh.it> <yo51n-38q-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

Cross-posted to 2 groups.

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Hello Alexandre,

On 26.07.19 11:39, Alexandre Belloni wrote:

>>>> Maybe this problem is only relevant for the S35390A and PCF8563 chip which
>>>> both lack the UIE support needed by hwclock. Both have only alarm triggers
>>>> in a minute accuracy according to the driver source code.
>>>
>>> AFAIK the rtc framework should then emulate this event somehow.
>>
>> I don't think so. When the rtc chip is not able to trigger an event with a
>> one second resolution - how can you emulate that?
>>
> 
> CONFIG_RTC_INTF_DEV_UIE_EMUL emulates it by polling the RTC.
> 

Just booted my NAS box and /boot/config-4.19.0-5-marvell contains

# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set

Would be cool when this would make hwclock happy.

Best regards,
Oliver

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Thread

Bug#932845: TS-219 RTC issue with Debian Buster Oliver Hartkopp <socketcan@hartkopp.net> - 2019-07-23 22:40 +0200
  Bug#932845: TS-219 RTC issue with Debian Buster Uwe Kleine-König <uwe@kleine-koenig.org> - 2019-07-24 09:20 +0200
    Bug#932845: TS-219 RTC issue with Debian Buster Oliver Hartkopp <socketcan@hartkopp.net> - 2019-07-25 16:50 +0200
      Bug#932845: TS-219 RTC issue with Debian Buster Uwe Kleine-König <u.kleine-koenig@pengutronix.de> - 2019-07-26 09:50 +0200
        Bug#932845: TS-219 RTC issue with Debian Buster Oliver Hartkopp <socketcan@hartkopp.net> - 2019-07-26 11:40 +0200
          Bug#932845: TS-219 RTC issue with Debian Buster Alexandre Belloni <alexandre.belloni@bootlin.com> - 2019-07-26 11:50 +0200
            Bug#932845: TS-219 RTC issue with Debian Buster Oliver Hartkopp <socketcan@hartkopp.net> - 2019-07-26 12:40 +0200
              Bug#932845: TS-219 RTC issue with Debian Buster Oliver Hartkopp <socketcan@hartkopp.net> - 2019-07-26 13:00 +0200
  Bug#932845: TS-219 RTC issue with Debian Buster Oliver Hartkopp <socketcan@hartkopp.net> - 2019-07-26 21:20 +0200
  Bug#932845: TS-219 RTC issue with Debian Buster Uwe Kleine-König <u.kleine-koenig@pengutronix.de> - 2019-07-28 21:50 +0200
    Bug#932845: TS-219 RTC issue with Debian Buster Oliver Hartkopp <socketcan@hartkopp.net> - 2019-07-29 08:30 +0200

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