linux-kernel - Re: [PATCH v2 6/7] Watchdog: introduce ARM SBSA watchdog driver

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Message-ID: <55620EA1.3070605@codeaurora.org>
Date:	Sun, 24 May 2015 12:47:13 -0500
From:	Timur Tabi <timur@...eaurora.org>
To:	Guenter Roeck <linux@...ck-us.net>, Fu Wei <fu.wei@...aro.org>
CC:	Suravee Suthikulpanit <Suravee.Suthikulpanit@....com>,
	Linaro ACPI Mailman List <linaro-acpi@...ts.linaro.org>,
	linux-watchdog@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org,
	Wei Fu <tekkamanninja@...il.com>,
	G Gregory <graeme.gregory@...aro.org>,
	Al Stone <al.stone@...aro.org>,
	Hanjun Guo <hanjun.guo@...aro.org>,
	Ashwin Chaugule <ashwin.chaugule@...aro.org>,
	Arnd Bergmann <arnd@...db.de>, vgandhi@...eaurora.org,
	wim@...ana.be, Jon Masters <jcm@...hat.com>,
	Leo Duran <leo.duran@....com>, Jon Corbet <corbet@....net>,
	Mark Rutland <mark.rutland@....com>
Subject: Re: [PATCH v2 6/7] Watchdog: introduce ARM SBSA watchdog driver

Guenter Roeck wrote:
>
> The pseudo-code in the specification suggests that if WCV is configured,
>      WS0 = WCV
>      WS1 = WCV + WOR
>
> Assuming that the implementation follows the pseudo-code in the
> specification,
> we would have separately programmable values. Since the pretimeout (per
> ABI)
> is the difference in seconds to the timeout, and not an absolute value,
> we would have to program the registers as follows.
>
>      WCV = timeout - pretimeout;
>      WOR = pretimeout;
>
> Does this make sense ?

Yes, thank you.  I will test this on my hardware.

-- 
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