[PATCH] RFC: pinctrl: grab default handler with bus notifiers

Mark Brown broonie at opensource.wolfsonmicro.com
Tue Nov 13 01:35:50 EST 2012


On Mon, Nov 12, 2012 at 01:21:40PM -0700, Stephen Warren wrote:
> On 11/11/2012 05:22 AM, Linus Walleij wrote:

> > Another solution that was discussed was whether to move
> > the default pinctrl handle and state grab to the device
> > core as an optional field in struct device itself, but
> > I'd like to first propose this less intrusive mechanism.

> I think doing that approach makes a lot more sense; wouldn't it
> completely avoid the issues with deferred probe that this notifier-based
> method can't solve? It would also be very much in line with e.g.
> dev_get_regmap() - if every resource that a driver required were handled
> like that, then deferred probe could be significantly isolated into the
> driver core rather than in every driver...

I have to say that I agree with this, notifiers seem to make life more
complicated for limited gain.  Otherwise I guess we could enhance
notifiers so that they're able to trigger deferrals?
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