watchdog: hpwdt (8/12): implement WDIOC_GETTIMELEFT
Let applications check the amount of time left before the watchdog will fire.
Signed-off-by: dann frazier <dannf@hp.com>
Acked-by: Thomas Mingarelli <Thomas.Mingarelli@hp.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c
index 0029991..554526c 100644
--- a/drivers/watchdog/hpwdt.c
+++ b/drivers/watchdog/hpwdt.c
@@ -450,6 +450,11 @@
return 0;
}
+static int hpwdt_time_left(void)
+{
+ return TICKS_TO_SECS(ioread16(hpwdt_timer_reg));
+}
+
/*
* NMI Handler
*/
@@ -591,6 +596,10 @@
case WDIOC_GETTIMEOUT:
ret = put_user(soft_margin, p);
break;
+
+ case WDIOC_GETTIMELEFT:
+ ret = put_user(hpwdt_time_left(), p);
+ break;
}
return ret;
}