On Tue, Jun 11, 2013 at 9:27 AM, Christian Ruppert
[off-list ref] wrote:

On Fri, Jun 07, 2013 at 01:18:35PM -0600, Stephen Warren wrote:

quoted

However, then the correlation between these pretend pins (i.e. really
the groups) and GPIOs won't work, because each "pin" is really 4 pins,
and hence 4 GPIOs, and hence you won't be able to gpio_get() more than 1
GPIO per pin group, I think.

I agree: Unluckily, pinctrl-single doesn't seem to be what we are looking
for.

I agree on this conclusion.

We already have a draft for a native pinctrl driver (see original post)
but there was some disagreement about exposing kernel internal pin
numbering to device tree users.

But that is an orthogonal issue I believe.

Yours,
Linus Walleij