Boris BREZILLON a04c3f01d3
watchdog: at91sam9_wdt: avoid spurious watchdog reset during init ...
Use the min_heartbeat value instead of the calculated heartbeat value for
the first watchdog reset to avoid spurious watchdog reset.
Resetting the watchdog counter during init might lead to a watchdog fault
reset because the watchdog counter has to be running for at least
min_heartbeat.
Resetting the watchdog counter after heartbeat might lead to a watchdog
timeout reset because the watchdog counter is running for more than
max_heartbeat time.
Using min_heartbeat instead of heartbeat does not guarantee that the
watchdog won't trigger a reset, but at least it reduces the chances to be
in such a case.
Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com >
Reviewed-by: Guenter Roeck <linux@roeck-us.net >
Signed-off-by: Wim Van Sebroeck <wim@iguana.be >
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a04c3f01d3