Messages in this thread Patch in this message | | | From | Bharat Bhushan <> | Subject | [PATCH 1/2] drivers: watchdog: marvell_gti: fix zero pretimeout handling | Date | Mon, 9 Oct 2023 10:10:36 +0530 |
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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@marvell.com> --- 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
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