[PATCH] mfd: mc13xxx: Configure WDI reset

Philippe Rétornaz philippe.retornaz at gmail.com
Mon Sep 8 05:06:36 PDT 2014

Le 08/09/2014 11:25, Markus Pargmann a écrit :
> Hi,
> On Mon, Sep 08, 2014 at 09:42:35AM +0200, Philippe Rétornaz wrote:
>> Hello
>> Le 08/09/2014 09:01, Markus Pargmann a écrit :
>>> Setup the PMIC to make a restart when a watchdog interrupt occures.
>>> If this is not configured, the PMIC will shut down the power supply
>>> without a restart.
>> Well, this was used to poweroff the mx31moboard board.
>> So we need to be able to configure the functionality.
> So on mx31moboard the watchdog interrupt always leads to a poweroff instead of
> a reset?

Well, no, it simply doesn't work since the output pin is not enabled :)
We enable the watchdog output only in pm_power_off().

> Perhaps it would be better to switch back to poweroff on
> watchdog interrupt right before the shutdown watchdog interrupt is
> triggered.

Yes, we definitely should be doing this.
The only point is that we don't have currently access to the PMIC from 
Is there a clean/recommended way to do it ?

Thanks !


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