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Re: [PATCH v2 1/3] gpio: defer probe if pinctrl cannot be found

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  Re: [PATCH v2 1/3] gpio: defer probe if pinctrl cannot be found Linus Walleij <linus.walleij@linaro.org> - 2015-07-28 12:30 +0200

#1194073 — Re: [PATCH v2 1/3] gpio: defer probe if pinctrl cannot be found

On Tue, Jul 14, 2015 at 10:29 AM, Tomeu Vizoso
<tomeu.vizoso@collabora.com> wrote:

> When an OF node has a pin range for its GPIOs, return -EPROBE_DEFER if
> the pin controller isn't available.
>
> Otherwise, the GPIO range wouldn't be set at all unless the pin
> controller probed always before the GPIO chip.
>
> With this change, the probe of the GPIO chip will be deferred and will
> be retried at a later point, hopefully once the pin controller has been
> registered and probed already.
>
> Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
> ---
>
> Changes in v2:
> - Don't defer probe if the pinctrl node is disabled

Sorry for the delay.

This looks like the right thing to do, I was just worried that it would have
undesired semantic or probe order effects on some platforms, but I think
this is one of these cases where I just have to apply this and see what
happens when people test it in linux-next.

So, patch applied.

Yours,
Linus Walleij
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