linux-kernel - Re: [PATCH] rtc: ds1307: support m41t0 variant

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Message-ID: <20170408151959.27oh2xhrnvoabb5d@piout.net>
Date:   Sat, 8 Apr 2017 17:19:59 +0200
From:   Alexandre Belloni <alexandre.belloni@...e-electrons.com>
To:     Stefan Agner <stefan@...er.ch>
Cc:     a.zummo@...ertech.it, rtc-linux@...glegroups.com,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] rtc: ds1307: support m41t0 variant

On 23/03/2017 at 16:54:57 -0700, Stefan Agner wrote:
> The m41t0 variant is very similar to the already supported m41t00
> variant, with the notable exception of the oscillator fail bit.
> The data sheet notes:
> 
>   If the oscillator fail (OF) bit is internally set to a '1,' this
>   indicates that the oscillator has either stopped, or was stopped
>   for some period of time and can be used to judge the validity of
>   the clock and date data.
> 
> The bit will get cleared with a regular write of the system time,
> so no changes are needed to clear it.
> 
> Signed-off-by: Stefan Agner <stefan@...er.ch>
> ---
>  Documentation/devicetree/bindings/i2c/trivial-devices.txt |  1 +
>  drivers/rtc/rtc-ds1307.c                                  | 13 +++++++++++++
>  2 files changed, 14 insertions(+)
> 
Applied, thanks.

-- 
Alexandre Belloni, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com