Subject: [PATCH 4/6] pinctrl: single: Add support for wake-up interrupts

From: [email-masked] (Tony Lindgren)
Date: Fri, 11 Oct 2013 09:01:46 -0700

* Linus Walleij <[email-masked]> [131011 09:05]:
> On Fri, Oct 11, 2013 at 5:43 PM, Tony Lindgren <[email-masked]> wrote:
> > * Linus Walleij <[email-masked]> [131011 03:40]:
> >> On Fri, Oct 11, 2013 at 10:56 AM, Roger Quadros <[email-masked]> wrote:
> >>
> >> > The register handling is fine. But how do we deal with resource handling?
> >> > e.g. the block that has the deep-core registers might need to be clocked or powered
> >> > before the registers can be accessed.
> >>
> >> Yeah I saw this in the code there.
> >>
> >> In this case it seems syscon-type regmap access can be used to
> >> read/write the registers, so maybe the pin controller also need to
> >>  get a handle on some clock etc?
> >
> > Uhh, let's not go there.. The resource availability needs to be
> > handled transparently in regmap code and the reg provider hardware
> > module driver using runtime PM.
> 
> OK we can surely discuss this with broonie, it makes sense to
> have regmap be able to do its deed transparently.

Yes I think so too. Sounds like we need callbacks for the runtime PM
checks to the "register provider" driver. Hwo knows, maybe those
features are there already :)

Tony