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Date: Thu, 11 Jun 2015 13:33:19 +0800
Message-ID: <CADyBb7s3=0oK5mmuO5-nSvVtgpqNdCb6gtnn3UDX-DthWcXphw@mail.gmail.com>
Subject: Re: [PATCH v4 5/7] Watchdog: introduce ARM SBSA watchdog driver
From: Fu Wei <fu.wei@linaro.org>
To: Guenter Roeck <linux@roeck-us.net>
Cc: Timur Tabi <timur@codeaurora.org>,
        Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>,
        Linaro ACPI Mailman List <linaro-acpi@lists.linaro.org>,
        linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org,
        Wei Fu <tekkamanninja@gmail.com>,
        G Gregory <graeme.gregory@linaro.org>, Al Stone <al.stone@linaro.org>,
        Hanjun Guo <hanjun.guo@linaro.org>,
        Ashwin Chaugule <ashwin.chaugule@linaro.org>,
        Arnd Bergmann <arnd@arndb.de>, Vipul Gandhi <vgandhi@codeaurora.org>,
        Wim Van Sebroeck <wim@iguana.be>, Jon Masters <jcm@redhat.com>,
        Leo Duran <leo.duran@amd.com>, Jon Corbet <corbet@lwn.net>,
        Mark Rutland <mark.rutland@arm.com>,
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Hi Guenter

On 11 June 2015 at 13:13, Guenter Roeck <linux@roeck-us.net> wrote:
> On 06/10/2015 08:45 PM, Timur Tabi wrote:
>>
>> Fu Wei wrote:
>>>
>>> Could you suggest a good way to use WS0, so we can follow SBSA spec?
>>
>>
>> To avoid the timeout/2 problem, WS0 calls panic, which is the "real"
>> timeout/reset.  WS1 is then a "backup" that is ignored by the driver. That
>> is, the driver doesn't do anything with WS1 and it doesn't tell the kernel
>> about WS1.
>>
>> I know you don't like the idea of WS1 as a backup timeout, but this is one
>> way to solve the problem.
>>
> This is what I would do.

If so, Please check the non-pretimeout version.  Thanks

>
> Guenter
>



-- 
Best regards,

Fu Wei
Software Engineer
Red Hat Software (Beijing) Co.,Ltd.Shanghai Branch
Ph: +86 21 61221326(direct)
Ph: +86 186 2020 4684 (mobile)
Room 1512, Regus One Corporate Avenue,Level 15,
One Corporate Avenue,222 Hubin Road,Huangpu District,
Shanghai,China 200021