From 776d14d201ae8b266208e0eae6510692bc58d9f2 Mon Sep 17 00:00:00 2001 From: Marcus Folkesson Date: Wed, 26 Mar 2025 09:29:48 +0100 Subject: [PATCH] watchdog: da9052_wdt: add support for nowayout Add nowayout module parameter for not stopping the watchdog when userspace application quits. Signed-off-by: Marcus Folkesson Reviewed-by: Guenter Roeck Link: https://lore.kernel.org/r/20250326-da9052-fixes-v3-1-a38a560fef0e@gmail.com Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck --- drivers/watchdog/da9052_wdt.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/watchdog/da9052_wdt.c b/drivers/watchdog/da9052_wdt.c index 77039f2f0be5..a8ff1e6a7903 100644 --- a/drivers/watchdog/da9052_wdt.c +++ b/drivers/watchdog/da9052_wdt.c @@ -30,6 +30,12 @@ struct da9052_wdt_data { unsigned long jpast; }; +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); +MODULE_PARM_DESC(nowayout, + "Watchdog cannot be stopped once started (default=" + __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); + static const struct { u8 reg_val; int time; /* Seconds */ @@ -172,6 +178,7 @@ static int da9052_wdt_probe(struct platform_device *pdev) da9052_wdt->ops = &da9052_wdt_ops; da9052_wdt->parent = dev; watchdog_set_drvdata(da9052_wdt, driver_data); + watchdog_set_nowayout(da9052_wdt, nowayout); if (da9052->fault_log & DA9052_FAULTLOG_TWDERROR) da9052_wdt->bootstatus |= WDIOF_CARDRESET; -- 2.50.1