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watchdog: wdat_wdt: Ping the watchdog on resume

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It turns out we need to ping the watchdog hardware on resume when we
re-program it. Otherwise this causes inadvertent reset to trigger
right after the resume is complete.

Fixes: 058dfc7670 (ACPI / watchdog: Add support for WDAT hardware watchdog)
Signed-off-by: Mika Westerberg <[email protected]>
Acked-by: Guenter Roeck <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
This commit is contained in:
Mika Westerberg 2016-10-20 18:03:36 +03:00 • committed by Rafael J. Wysocki
commit 28e3d7002b
1 changed files with 4 additions and 0 deletions
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4
drivers/watchdog/wdat_wdt.c
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@ -499,6 +499,10 @@ static int wdat_wdt_resume_noirq(struct device *dev)
ret = wdat_wdt_enable_reboot(wdat);
if (ret)
return ret;
ret = wdat_wdt_ping(&wdat->wdd);
if (ret)
return ret;
}
return wdat_wdt_start(&wdat->wdd);