Re: pinctrl: -EAGAIN not supported but documented

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On 1/21/19 4:26 PM, Linus Walleij wrote:
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

I'll send a patch shortly.

Thanks.

Ramon.




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