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Date: Mon, 25 May 2015 00:17:31 +0800
Message-ID: <CADyBb7tS8vv4daa4Nx1ALMdNGkAkLaHXQVMrvKntCGKrM9FCKA@mail.gmail.com>
Subject: Re: [PATCH v2 5/7] Watchdog: introduce "pretimeout" into framework
From: Fu Wei <fu.wei@linaro.org>
To: Guenter Roeck <linux@roeck-us.net>
Cc: Timo Kokkonen <timo.kokkonen@offcode.fi>,
        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>, Timur Tabi <timur@codeaurora.org>,
        Ashwin Chaugule <ashwin.chaugule@linaro.org>,
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Hi Guenter,


On 22 May 2015 at 23:05, Guenter Roeck <linux@roeck-us.net> wrote:
> On Fri, May 22, 2015 at 10:38:32PM +0800, Fu Wei wrote:
>> Hi Guenter.
>>
>> Sorry for my poor English .
>> let me explain this :
>>
>> On 22 May 2015 at 21:23, Guenter Roeck <linux@roeck-us.net> wrote:
>> > On 05/22/2015 03:46 AM, Fu Wei wrote:
>> >>
>> >> Hi Timo,
>> >>
>> > [ ... ]
>> >
>> >> So I am still trying to improve pretimeout support :-)
>> >
>> >
>> > Is there anything still missing from it ?
>> >
>> >> If I can make pretimeout merged, may be you can try pretimeout to
>> >> implement early_timeout_sec function?
>> >
>> >
>> > Not sure how one would or even could do that.
>> >
>> > Do you mean "implement early_pretimeout_sec", by any chance ?
>>
>> I mean: using pretimeout to implement the function you want, instead
>> of early_pretimeout_sec
>>
> How would this work if the watchdog hardware doesn't support pretimeout ?
>
> Pretimeout and early timeout are two logically different functions, with
> different goals, so I don't entirely (if at all) understand why it would
> make sense to tie them together.
>
> Can you elaborate why you think this would be a good idea ?

sorry,  my apology.  forget about this, :-)
I think we should focus on SBSA watchdog patch here, but not a
early_timeout_sec.

>
> Thanks,
> Guenter
> --
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-- 
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