In case some application was writing to the watchdog before closing we
have to ensure that we add enough delay before writing again to the
DA9062AA_CONTROL_F register. The delay otherwise can only be ensured by
min_hw_heartbeat_ms for pings.
Signed-off-by: Michael Grzeschik <m.grzeschik@xxxxxxxxxxxxxx>
---
drivers/watchdog/da9062_wdt.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/watchdog/da9062_wdt.c b/drivers/watchdog/da9062_wdt.c
index 8297bcf0b9f75..1fe88826c6981 100644
--- a/drivers/watchdog/da9062_wdt.c
+++ b/drivers/watchdog/da9062_wdt.c
@@ -129,6 +129,8 @@ static int da9062_wdt_stop(struct watchdog_device *wdd)
struct da9062_watchdog *wdt = watchdog_get_drvdata(wdd);
int ret;
+ mdelay(DA9062_RESET_PROTECTION_MS);
+
ret = da9062_reset_watchdog_timer(wdt);
if (ret) {
dev_err(wdt->hw->dev, "Failed to ping the watchdog (err = %d)\n",
--
2.11.0
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