Re: [PATCH 11/20] gpio/rockchip: add of_node for gpiochip

[Linus Walleij]

On Tue, Oct 4, 2022 at 10:30 AM Andy Shevchenko
<andriy.shevchenko@xxxxxxxxxxxxxxx> wrote:
> 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.

Hm yeah given that the series want to introduce ACPI as well it makes
a lot of sense.

Yours,
Linus Walleij