Re: [PATCH 11/20] gpio/rockchip: add of_node for gpiochip
From: Andy Shevchenko
Date: Tue Oct 04 2022 - 04:30:33 EST
On Tue, Oct 04, 2022 at 09:14:38AM +0200, Linus Walleij wrote:
> On Tue, Sep 20, 2022 at 12:31 PM Jianqun Xu <jay.xu@xxxxxxxxxxxxxx> wrote:
> > The Rockchip GPIO driver will probe before pinctrl and has no parent dt
> > node, lack of the of_node will cause the driver probe failure.
> >
> > Signed-off-by: Jianqun Xu <jay.xu@xxxxxxxxxxxxxx>
>
> > +#ifdef CONFIG_OF_GPIO
> > + gc->of_node = of_node_get(bank->dev->of_node);
> > +#endif
>
> Any introduction of of_node_get() needs to be balanced with a
> corresponding of_node_put().
No, this code should not have been existed in the first place. We don't allow
anymore any of of_node usage in the GPIO drivers. There is an fwnode and parent
and logic to retrieve fwnode from parent in the GPIO library for the most of
the cases.
--
With Best Regards,
Andy Shevchenko