linux-kernel - Re: [PATCH v12 3/7] gpiolib: of: make fwnode take precedence in struct gpio

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Message-ID: <YapnTHQZyNCZXrgp@smile.fi.intel.com>
Date:   Fri, 3 Dec 2021 20:51:56 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Bartosz Golaszewski <brgl@...ev.pl>
Cc:     Kent Gibson <warthog618@...il.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Shuah Khan <shuah@...nel.org>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-kselftest@...r.kernel.org
Subject: Re: [PATCH v12 3/7] gpiolib: of: make fwnode take precedence in
 struct gpio_chip

On Fri, Dec 03, 2021 at 02:29:59PM +0100, Bartosz Golaszewski wrote:
> If the driver sets the fwnode in struct gpio_chip, let it take
> precedence over the of_node.

> Signed-off-by: Bartosz Golaszewski <brgl@...ev.pl>
> ---
>  drivers/gpio/gpiolib-of.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c
> index 0ad288ab6262..91dcf2c6cdd8 100644
> --- a/drivers/gpio/gpiolib-of.c
> +++ b/drivers/gpio/gpiolib-of.c
> @@ -1046,6 +1046,9 @@ void of_gpio_dev_init(struct gpio_chip *gc, struct gpio_device *gdev)
>  	if (gc->parent)
>  		gdev->dev.of_node = gc->parent->of_node;
>  
> +	if (gc->fwnode)
> +		gc->of_node = to_of_node(gc->fwnode);
> +
>  	/* If the gpiochip has an assigned OF node this takes precedence */
>  	if (gc->of_node)
>  		gdev->dev.of_node = gc->of_node;

Similar should be done in acpi_gpio_dev_init():

	if (gc->fwnode)
		device_set_node(&gdev->dev, gc->fwnode);

-- 
With Best Regards,
Andy Shevchenko