linux-kernel - Re: [PATCH 3/4] rtc: ds1307: add calibration of

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Message-ID: <4d1b1ead-9439-210e-f246-cb49219390f5@micronovasrl.com>
Date:   Wed, 9 May 2018 20:31:39 +0200
From:   Giulio Benetti <giulio.benetti@...ronovasrl.com>
To:     Alexandre Belloni <alexandre.belloni@...tlin.com>
Cc:     a.zummo@...ertech.it, robh+dt@...nel.org, mark.rutland@....com,
        linux-rtc@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/4] rtc: ds1307: add calibration of_ for mt41txx chips.

Hi Alexandre,

Il 08/05/2018 21:19, Alexandre Belloni ha scritto:
> Hi,
> 
> There is a sysfs interface for calibration, please use it. this is
> especially useful since the calibration value probably depend on
> temperature so it has to be updated dynamically to be really useful.
> 
> See https://elixir.bootlin.com/linux/v4.16.7/source/Documentation/ABI/testing/sysfs-class-rtc#L68
> and https://elixir.bootlin.com/linux/v4.16.7/source/drivers/rtc/interface.c#L999
> 

Used sysfs now and just submitted V2 patchset.
Thanks for pointing me those links.

-- 
Giulio Benetti
CTO

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