ioctl(WDIOC_SETTIMEOUT) calls .set_timeout and .ping callbacks and it is
expected that it changes current watchdog timeout.
armada_37xx_wdt's .ping callback just reping counter 0 and does not touch
counter 1 used for timeout. So it is needed to set counter 1 to the new
value in .set_timeout callback to ensure ioctl(WDIOC_SETTIMEOUT)
functionality. Fix it.
Fixes: 54e3d9b518c8 ("watchdog: Add support for Armada 37xx CPU watchdog")
Signed-off-by: Pali Rohár <pali@xxxxxxxxxx>
---
drivers/watchdog/armada_37xx_wdt.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/watchdog/armada_37xx_wdt.c b/drivers/watchdog/armada_37xx_wdt.c
index 1635f421ef2c..b84cba94b135 100644
--- a/drivers/watchdog/armada_37xx_wdt.c
+++ b/drivers/watchdog/armada_37xx_wdt.c
@@ -179,6 +179,8 @@ static int armada_37xx_wdt_set_timeout(struct watchdog_device *wdt,
dev->timeout = (u64)dev->clk_rate * timeout;
do_div(dev->timeout, CNTR_CTRL_PRESCALE_MIN);
+ set_counter_value(dev, CNTR_ID_WDOG, dev->timeout);
+
return 0;
}
--
2.20.1
