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

Guenter Roeck
2024-12-10T15:22:26Z

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