linux-kernel - Re: [PATCH 1/2] rtc: ds1374: wdt: Fix issue with timeout scaling from secs to wdt ticks

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Message-ID: <20170504124714.hdfsolo7lqvrde7o@piout.net>
Date:   Thu, 4 May 2017 14:47:14 +0200
From:   Alexandre Belloni <alexandre.belloni@...e-electrons.com>
To:     Moritz Fischer <mdf@...nel.org>
Cc:     linux-kernel@...r.kernel.org, moritz.fischer@...us.com,
        linux-watchdog@...r.kernel.org, linux@...ck-us.net, wim@...ana.be,
        a.zummo@...ertech.it, rtc-linux@...glegroups.com,
        alex.williams@...com
Subject: Re: [PATCH 1/2] rtc: ds1374: wdt: Fix issue with timeout scaling
 from secs to wdt ticks

On 24/04/2017 at 15:05:11 -0700, Moritz Fischer wrote:
> Fix commit 920f91e50c5b ("drivers/rtc/rtc-ds1374.c: add watchdog support")
> 
> The issue is that the internal counter that triggers the watchdog reset
> is actually running at 4096 Hz instead of 1Hz, therefore the value
> given by userland (in sec) needs to be multiplied by 4096 to get the
> correct behavior.
> 
> Signed-off-by: Moritz Fischer <mdf@...nel.org>
> ---
>  drivers/rtc/rtc-ds1374.c | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)
> 
Applied, thanks.

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