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-rw-r--r--drivers/rtc/rtc-ds1307.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c
index 49702942bb08..54c85cdd019d 100644
--- a/drivers/rtc/rtc-ds1307.c
+++ b/drivers/rtc/rtc-ds1307.c
@@ -1668,6 +1668,8 @@ static const struct watchdog_ops ds1388_wdt_ops = {
static void ds1307_wdt_register(struct ds1307 *ds1307)
{
struct watchdog_device *wdt;
+ int err;
+ int val;
if (ds1307->type != ds_1388)
return;
@@ -1676,6 +1678,10 @@ static void ds1307_wdt_register(struct ds1307 *ds1307)
if (!wdt)
return;
+ err = regmap_read(ds1307->regmap, DS1388_REG_FLAG, &val);
+ if (!err && val & DS1388_BIT_WF)
+ wdt->bootstatus = WDIOF_CARDRESET;
+
wdt->info = &ds1388_wdt_info;
wdt->ops = &ds1388_wdt_ops;
wdt->timeout = 99;