Re: [PATCH 1/1] mfd: Fix runtime warning caused by duplicate deviceregistration

[Lee Jones]

On 05/07/12 14:20, Mark Brown wrote:
> On Thu, Jul 05, 2012 at 02:12:09PM +0100, Lee Jones wrote:
> > On 05/07/12 14:03, Mark Brown wrote:
> > > On Thu, Jul 05, 2012 at 01:55:50PM +0100, Lee Jones wrote:
>
> > > > Then were would you register it, if not here?
>
> > > Same place as for DT.
>
> > That is a possibility, but the idea is to reduce code in the
> > platform area, not add to it. We'd also need a completely separate
>
> But surely this would, if anything, remove code?  You already have the
> code to do the registration in the MFD so all you're going to be doing
> here is removing the code from

No, it will add platform code if we were to register the ab8500 from the 
platform area.

> > platform_data structure to the one we use for platform registration,
> > as much of it has now been moved into Device Tree. The regulators
> > are a good example of this, but there's also GPIO information which
> > is no longer relevant etc.
>
> Hrm, the usual pattern for this stuff is that the DT is parsed into
> platform data so the DT code is isolated to the parser.  It sounds like
> you've got a very different structure here?

Yes we do. Ref that commit ID I sent you you a few days ago:

5f3fc8adeec9bb12742fbfa777fa1947deda21a2

> > I do believe that registering the AB8500 from the DB8500 is
> > appropriate though, for the simple reason that the AB8500 is a
> > sub-device to the DB8500. I think this is the correct thing to do.
> > But anyway, as I said before, that ship has sailed. We _already_ do
> > this. All this patch does is prevent the AB8500 from being
> > registered twice when DT is not enabled.
>
> Well, it also introduces code into mainline which is likely to be used
> as a template by other people - I'd be especially worried about the next
> ST platform ending up repeating the same mistakes.

There are no mistakes. It would work for other platforms. :)

> If the code is so
> separate perhaps it's better to just remove the non-DT support?

That's the plan.

--
Lee Jones
Linaro ST-Ericsson Landing Team Lead
M: +44 77 88 633 515
Linaro.org â Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/