RE: [PATCH 2/2] watchdog: da9062: reset board on watchdog timeout

From: Adam Thomson
Date: Tue Nov 30 2021 - 04:41:15 EST


On 29 November 2021 12:12, Andrej Picej wrote:

> > I'm a little concerned about forcing this change in the driver. There may be
> > platforms which don't want the PMIC to perform a full reset through OTP re-
> read
> > and if we hard code this change then that's impacting those platforms. If we
> > want/need this then I think it should probably be a DT binding for da9061/2
> > which then indicates the behaviour we want.
>
> Ok, I see the impact this might have on the platforms that are relying
> on the current default setting. I will start on the DT binding
> implementation and submit a new patch.

Thanks. Probably the safest route.

>
> >
> > NRES_MODE bit also plays a part here as it controls whether or not the nRESET
> > line state is changed as part of the power-down/up process. I'm assuming for
> > your setup this bit is 0?
> >
> We leave NRES_MODE as it is, 0 by default I guess? So do you want a
> separate dt binding for NRES_MODE?

I think the setting very much depends on the customers OTP config selection. For
now we can leave this option. Just wanted to highlight it.