linux-kernel - Re: [PATCH 11/20] gpio/rockchip: add of

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Date:   Tue, 4 Oct 2022 11:30:17 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Linus Walleij <linus.walleij@...aro.org>
Cc:     Jianqun Xu <jay.xu@...k-chips.com>, heiko@...ech.de, brgl@...ev.pl,
        robert.moore@...el.com, robh@...nel.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
        lenb@...nel.org, rafael@...nel.org
Subject: Re: [PATCH 11/20] gpio/rockchip: add of_node for gpiochip

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@...k-chips.com> 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@...k-chips.com>
> 
> > +#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