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SubjectRe: [PATCH 5/5] rtc: at91sam9: add DT bindings documentation
On Wed, Sep 10, 2014 at 05:35:32PM +0200, Boris BREZILLON wrote:
> On Wed, 10 Sep 2014 17:07:02 +0200 Johan Hovold <johan@kernel.org> wrote:

> > Yes, this essentially what I suggested in the thread (and my last reply)
> > and relying on syscon rather than a custom driver seems like a good
> > idea. It would allow early access to the registers too with the recently
> > proposed changes. It would not guarantee any kind of exclusivity,
> > though, but I guess that's tolerable?
>
> I know about the "mfd: syscon: Decouple syscon interface from platform
> devices" series, but I wonder why we would need to access GPBR
> registers during early boot stages. Do you have something in mind :-)?

Yeah, that's what I was referring to. In the thread from last year,
Jean-Christophe mentioned something about barebox using the
backup-registers. Not sure about the details, though.

Johan


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