On Mon, Oct 09, 2023 at 10:10:36AM +0530, Bharat Bhushan wrote:
> When pretimeout is set to 0 then do not reprogram timer
> with zero timeout, this will reset device immediately.
> Also disable interrupt to stop pretimeout notification.
>
> Signed-off-by: Bharat Bhushan <bbhushan2@xxxxxxxxxxx>
Reviewed-by: Guenter Roeck <linux@xxxxxxxxxxxx>
> ---
> drivers/watchdog/marvell_gti_wdt.c | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/drivers/watchdog/marvell_gti_wdt.c b/drivers/watchdog/marvell_gti_wdt.c
> index d7eb8286e11e..25b7ce0f0738 100644
> --- a/drivers/watchdog/marvell_gti_wdt.c
> +++ b/drivers/watchdog/marvell_gti_wdt.c
> @@ -190,6 +190,13 @@ static int gti_wdt_set_pretimeout(struct watchdog_device *wdev,
> struct gti_wdt_priv *priv = watchdog_get_drvdata(wdev);
> struct watchdog_device *wdog_dev = &priv->wdev;
>
> + if (!timeout) {
> + /* Disable Interrupt */
> + writeq(GTI_CWD_INT_ENA_CLR_VAL(priv->wdt_timer_idx),
> + priv->base + GTI_CWD_INT_ENA_CLR);
> + return 0;
> + }
> +
> /* pretimeout should 1/3 of max_timeout */
> if (timeout * 3 <= wdog_dev->max_timeout)
> return gti_wdt_settimeout(wdev, timeout * 3);
> --
> 2.34.1
>
