Re: Linux logs new warning `gpio gpiochip0: gpiochip_add_data_with_key: get_direction failed: -22`

[Linus Walleij]

On Mon, Feb 24, 2025 at 9:51 AM <brgl@xxxxxxxx> wrote:

> In any case: Linus: what should be our policy here? There are some pinctrl
> drivers which return EINVAL if the pin in question is not in GPIO mode. I don't
> think this is an error. Returning errors should be reserved for read failures
> and so on. Are you fine with changing the logic here to explicitly default to
> INPUT as until recently all errors would be interpreted as such anyway?

Oh hm I guess. There was no defined semantic until now anyway. Maybe
Andy has something to say about it though, it's very much his pin controller.

Yours,
Linus Walleij