Re: [PATCH v3] watchdog/imx2+: add support for pretimeout interrupt functionality

[Oskar Schirmer]

Hi Wim,

unless there is another issue with this patch,
could You give an ack now?

thanks,
  Oskar

On Thu, Sep 20, 2012 at 15:37:24 +0000, Oskar Schirmer wrote:
> This watchdog device provides pretimeout facilities:
> Set some timeout value and get informed about imminent
> watchdog activity thru interrupt.
> 
> Allow user to wait for this asynchronous event thru poll(2),
> and to clear it implicitely upon dog appeasement.
> 
> There is only one precedent in current kernel that implements
> watchdog pretimeout, ipmi_watchdog. It provides pretimeout
> event thru poll, and requires a read(2) call to clear it.
> 
> However, as write(2) does calm the dog and so wind up the
> timer anyway, it is obvious to let poll(2) state writability
> where pretimeout has passed.
[...]
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