Re: [PATCH v3 5/7] watchdog: Add Nuvoton NCT6694 WDT support

[Guenter Roeck <linux@roeck-us.net>]

On 12/10/24 02:45, Ming Yu wrote:
> This driver supports Watchdog timer functionality for NCT6694 MFD
> device based on USB interface.
> 
> Signed-off-by: Ming Yu <tmyu0@nuvoton.com>
> ---
...
> +static int nct6694_wdt_probe(struct platform_device *pdev)
> +{
...
> +	wdev->timeout = timeout;
> +	wdev->pretimeout = pretimeout;
> +	if (timeout < pretimeout) {
> +		dev_warn(data->dev, "pretimeout < timeout. Setting to zero\n");
> +		wdev->pretimeout = 0;
> +	}
> +
> +	wdev->min_timeout = 1;
> +	wdev->max_timeout = 255;
> +
> +	mutex_init(&data->lock);
> +
> +	platform_set_drvdata(pdev, data);
> +
> +	/* Register watchdog timer device to WDT framework */
> +	watchdog_set_drvdata(&data->wdev, data);
> +	watchdog_init_timeout(&data->wdev, timeout, dev);

This is pointless since timeout is pre-initialized with a value != 0.
That means a value provided through devicetree will never be used
unless the user sets timeout=0 as module parameter. But then the above
check for pretimeout is useless.

Guenter