linux-kernel - Re: [PATCH 19/21] gpio: swnode: replace gpiochip_find() with gpio_device_find_by

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Message-ID: <ZPiSKTfIU3BSrqTj@smile.fi.intel.com>
Date:   Wed, 6 Sep 2023 17:52:25 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Bartosz Golaszewski <brgl@...ev.pl>
Cc:     Aaro Koskinen <aaro.koskinen@....fi>,
        Janusz Krzysztofik <jmkrzyszt@...il.com>,
        Tony Lindgren <tony@...mide.com>,
        Russell King <linux@...linux.org.uk>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Dipen Patel <dipenp@...dia.com>,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Hans de Goede <hdegoede@...hat.com>,
        Mark Gross <markgross@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, linux-omap@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-gpio@...r.kernel.org,
        linux-acpi@...r.kernel.org, timestamp@...ts.linux.dev,
        linux-tegra@...r.kernel.org, platform-driver-x86@...r.kernel.org,
        Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: Re: [PATCH 19/21] gpio: swnode: replace gpiochip_find() with
 gpio_device_find_by_label()

On Tue, Sep 05, 2023 at 08:53:07PM +0200, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
> 
> We're porting all users of gpiochip_find() to using gpio_device_find().
> Update the swnode GPIO code.

...

> -static int swnode_gpiochip_match_name(struct gpio_chip *chip, void *data)
> +static struct gpio_device *swnode_get_gpio_device(struct fwnode_handle *fwnode)
>  {
> -	return !strcmp(chip->label, data);
> -}
> +	const struct software_node *gdev_node;
> +	struct gpio_device *gdev;
>  
> -static struct gpio_chip *swnode_get_chip(struct fwnode_handle *fwnode)
> -{

Not sure if you used --patience. Patches might look better.

> -	const struct software_node *chip_node;
> -	struct gpio_chip *chip;
> -
> -	chip_node = to_software_node(fwnode);
> -	if (!chip_node || !chip_node->name)
> +	gdev_node = to_software_node(fwnode);
> +	if (!gdev_node || !gdev_node->name)
>  		return ERR_PTR(-EINVAL);
>  
> -	chip = gpiochip_find((void *)chip_node->name, swnode_gpiochip_match_name);
> -	return chip ?: ERR_PTR(-EPROBE_DEFER);
> +	gdev = gpio_device_find_by_label((void *)gdev_node->name);
> +	return gdev ?: ERR_PTR(-EPROBE_DEFER);
>  }

...

> -	desc = gpiochip_get_desc(chip, args.args[0]);
> +	desc = gpiochip_get_desc(gdev->chip, args.args[0]);

gpio_device_get_desc() ?

-- 
With Best Regards,
Andy Shevchenko