[PATCH RFC 0/9] gpio: improve support for shared GPIOs

[Bartosz Golaszewski]

On Tue, Oct 21, 2025 at 4:08 PM Mark Brown <broonie at kernel.org> wrote:
>
> On Mon, Oct 20, 2025 at 11:41:52AM +0200, Bartosz Golaszewski wrote:
> > On Fri, Oct 17, 2025 at 7:32 PM Mark Brown <broonie at kernel.org> wrote:
>
> > > It really should be the actual physical state change that triggers the
> > > event.
>
> > I guess so, but this would require some non-trivial rework of the
> > regulator core. We'd need some list of deferred notifications stored
> > in memory for when the physical state actually changes.
>
> I'm not sure I see the need for deferred notifications?  We'd need to go
> round all the users whenever a physical change to the GPIO happens but
> it's not clear what we'd need to store beyond the list of users?

In my mind I was thinking that we only need to send the notifications
to users who already enabled/disabled the regulator too but you're
right, it seems like a loop over the relevant pins should be enough.

In any case: this is outside the scope of this series but I'll see if
it's easy enough to add separately.

Bartosz