Re: pinctrl: -EAGAIN not supported but documented

[Linus Walleij <linus.walleij@xxxxxxxxxx>]

On Mon, Jan 21, 2019 at 2:28 PM Ramon Fried <ramon.fried@xxxxxxxxxxxxxxx> wrote:

> Stated in Documentation/driver-api/pinctl.rst:
>
> Since some controllers have special logic for handling entire groups of pins
> they can exploit the special whole-group pin control function. The
> pin_config_group_set() callback is allowed to return the error code -EAGAIN,
> for groups it does not want to handle, or if it just wants to do some
> group-level handling and then fall through to iterate over all pins, in
> which
> case each individual pin will be treated by separate pin_config_set()
> calls as
> well.
>
> ----
>
> This is not supported, and there's no code for handling it.
>
> Should we add the necessary code or just remove the wrong documentation.

The idea was removed in:
commit ad42fc6c84795d19972e7f7dee70fe74bec4c2d8
"pinctrl: rip out the direct pinconf API"

I think we should just remove the documentation.

Do you want me to look into it or do you want to send a patch?

Yours,
Linus Walleij