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watchdog: da9052_wdt: add support for nowayout

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Add nowayout module parameter for not stopping the
watchdog when userspace application quits.

Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20250326-da9052-fixes-v3-1-a38a560fef0e@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
This commit is contained in:
Marcus Folkesson 2025-03-26 09:29:48 +01:00 committed by Wim Van Sebroeck
parent 4856ebd997
commit 776d14d201
1 changed files with 7 additions and 0 deletions
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7
drivers/watchdog/da9052_wdt.c
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@ -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;