Re: [PATCH v10 5/5] Watchdog: ARM SBSA Generic Watchdog half timeout panic support

[Fu Wei]

On 4 February 2016 at 02:08, Timur Tabi <timur@xxxxxxxxxxxxxx> wrote:
> Fu Wei wrote:
>>
>> Actually I am taking your suggestion to avoid touching WCV in
>> interrupt routine.
>> So even we have pre-timeout support , it is useless for this
>> panic-on-half-timeout feature,
>> because pre-timeout  == timeout / 2 (always).
>>
>> So maybe I misunderstand your suggestion,
>> could you let me know : why we want pre-timeout here?
>
>
> Maybe I'm confused.
>
> For pre-timeout, I think the SBSA watchdog driver should support only
> half-timeout.  That is, the user cannot configure the length of the
> pre-timeout with this driver.  He can only enable it, and it is
> automatically set to 1/2 timeout.

Actually,
the SBSA watchdog driver should support only  half-timeout for panic
the user cannot configure the length of "panic time",  He can only
enable it, and it is automatically set to 1/2 timeout.

we don't need pre-timeout here.

Hope I understand you correctly :-) sorry for your confusion

>
> So when pre-timeout occurs, the interrupt handler calls panic() or whatever
> it's supposed to do.

Actually,
So when 1/2 timeout occurs, the interrupt handler calls panic() or
whatever it's supposed to do.

>
> So "pre-timeout  == timeout / 2 (always)" is exactly what we want.

our patchset is doing this way.



-- 
Best regards,

Fu Wei
Software Engineer
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