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SubjectRe: [PATCH 3/7] pinctrl: pinconf-generic: Allow driver to specify DT params
Hi Ivan,

On Fri, 2014-11-21 at 09:35AM +0200, Ivan T. Ivanov wrote:
>
> On Thu, 2014-11-20 at 08:22 -0800, Sören Brinkmann wrote:
> >
> >
> > Also, I hope all my changes here don't break the current behavior. So,
> > those 27 driver should still be able to do what they currently do. But I
> > hope they could migrated over to use the generic bindings only in the
> > longer term, so that these custom properties disappear.
> >
> > > > The pinctrl driver just assembles
> > > > some data structure that has the information regarding custom properties
> > > > and the core handles the rest.
> > >
> > > Yup, that is nice. What will be really nice if it also handle custom,
> > > "function", "groups" and "pins" properties. Otherwise most of the drivers
> > > will not be able to benefit from this.
> >
> > Why would you still need those?
>
> I don't need them :-). The point was that still majority of the drivers
> will have custom parsing functions. It would be nice if we could fix
> that too. I do understand that using custom "pins", "functions"... is
> something which is deprecated, but if core parsing functions allow
> passing custom strings for above purposes, in a similar way as your
> proposal, it will be easier for those drivers to migrate, I believe.

This does sound much more like a feature request than a fundamental
problem with the implementation, now. And like Laurent's feature
request, I'd like to turn this down. Otherwise this just gets hold up by
feature requests blocking pinctrl-zynq.
I think the interesting questions are:
1. Does it break any current user?
2. Is there anything fundamentally preventing adding your feature at
some later time as part of such a migration you describe?

Thanks,
Sören


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