Re: [PATCH v1 1/1] watchdog: gpio_wdt: Make use of device properties

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On Mon, Sep 25, 2023 at 03:35:43PM +0300, Andy Shevchenko wrote:
> Convert the module to be property provider agnostic and allow
> it to be used on non-OF platforms.
> 
> Include mod_devicetable.h explicitly to replace the dropped of.h
> which included mod_devicetable.h indirectly.
> 
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>

Reviewed-by: Guenter Roeck <linux@xxxxxxxxxxxx>

> ---
>  drivers/watchdog/gpio_wdt.c | 16 +++++++---------
>  1 file changed, 7 insertions(+), 9 deletions(-)
> 
> diff --git a/drivers/watchdog/gpio_wdt.c b/drivers/watchdog/gpio_wdt.c
> index 0923201ce874..a7b814ea740b 100644
> --- a/drivers/watchdog/gpio_wdt.c
> +++ b/drivers/watchdog/gpio_wdt.c
> @@ -5,12 +5,13 @@
>   * Author: 2013, Alexander Shiyan <shc_work@xxxxxxx>
>   */
>  
> -#include <linux/err.h>
>  #include <linux/delay.h>
> -#include <linux/module.h>
> +#include <linux/err.h>
>  #include <linux/gpio/consumer.h>
> -#include <linux/of.h>
> +#include <linux/mod_devicetable.h>
> +#include <linux/module.h>
>  #include <linux/platform_device.h>
> +#include <linux/property.h>
>  #include <linux/watchdog.h>
>  
>  static bool nowayout = WATCHDOG_NOWAYOUT;
> @@ -106,7 +107,6 @@ static const struct watchdog_ops gpio_wdt_ops = {
>  static int gpio_wdt_probe(struct platform_device *pdev)
>  {
>  	struct device *dev = &pdev->dev;
> -	struct device_node *np = dev->of_node;
>  	struct gpio_wdt_priv *priv;
>  	enum gpiod_flags gflags;
>  	unsigned int hw_margin;
> @@ -119,7 +119,7 @@ static int gpio_wdt_probe(struct platform_device *pdev)
>  
>  	platform_set_drvdata(pdev, priv);
>  
> -	ret = of_property_read_string(np, "hw_algo", &algo);
> +	ret = device_property_read_string(dev, "hw_algo", &algo);
>  	if (ret)
>  		return ret;
>  	if (!strcmp(algo, "toggle")) {
> @@ -136,16 +136,14 @@ static int gpio_wdt_probe(struct platform_device *pdev)
>  	if (IS_ERR(priv->gpiod))
>  		return PTR_ERR(priv->gpiod);
>  
> -	ret = of_property_read_u32(np,
> -				   "hw_margin_ms", &hw_margin);
> +	ret = device_property_read_u32(dev, "hw_margin_ms", &hw_margin);
>  	if (ret)
>  		return ret;
>  	/* Disallow values lower than 2 and higher than 65535 ms */
>  	if (hw_margin < 2 || hw_margin > 65535)
>  		return -EINVAL;
>  
> -	priv->always_running = of_property_read_bool(np,
> -						     "always-running");
> +	priv->always_running = device_property_read_bool(dev, "always-running");
>  
>  	watchdog_set_drvdata(&priv->wdd, priv);
>  
> -- 
> 2.40.0.1.gaa8946217a0b
> 



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