Re: [PATCH] ASoC: wm8903: add regulator handling

Charles Keepax
2017-03-22T09:06:20Z

On Wed, Mar 22, 2017 at 08:24:32AM +0100, Linus Walleij wrote:
> On Mon, Mar 20, 2017 at 12:51 PM, Charles Keepax
> <ckeepax@opensource.wolfsonmicro.com> wrote:
> > On Mon, Mar 20, 2017 at 10:13:52AM +0100, Linus Walleij wrote:
>
> >> Mark: I was thinking about adding runtime PM for disabling
> >> these regulators when unused, but I'm uncertain about the
> >> interaction with DAPM in that regard. This atleast gives us
> >> control over the supplies.
> >
> > DAPM will hold a pm_runtime reference whilst the chip is active
> > so usually there isn't really much interaction to worry about.
>
> OK, so since the codec is registered on i2c's client->dev I take
> it I could use the runtime PM / suspend/resume callbacks on
> that device, and it should just work.
>

Yeah should do, wm8962 should provide a reasonably similar model
if you are looking for a handy example and feel free to drop me a
line if I can be of any help.

Thanks,
Charles