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

[Linus Walleij]

On Tue, Nov 13, 2012 at 7:35 AM, Mark Brown
<broonie at opensource.wolfsonmicro.com> wrote:
> 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?

OK I'll have to come up with a patch to the device core
instead... it'll be much simpler anyway and if both of you guys
can back it I guess Greg might be OK with it too.

Yours,
Linus Walleij