diff mbox series

[v2] watchdog: dw_wdt: ping watchdog to reset countdown before start

Message ID 20200107155155.278521-1-ml@embed.me.uk
State Superseded
Headers show
Series [v2] watchdog: dw_wdt: ping watchdog to reset countdown before start | expand

Commit Message

Jack Mitchell Jan. 7, 2020, 3:51 p.m. UTC
Currently on an rk3288 SoC when trying to use the watchdog the SoC will
instantly reset. This is due to the watchdog countdown counter being set
to its initial value of 0x0. Reset the watchdog counter before start in
order to correctly start the countdown timer from the right position.

Signed-off-by: Jack Mitchell <ml@embed.me.uk>
---
 drivers/watchdog/dw_wdt.c | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/drivers/watchdog/dw_wdt.c b/drivers/watchdog/dw_wdt.c
index fef7c61f5555..4a902d015bc2 100644
--- a/drivers/watchdog/dw_wdt.c
+++ b/drivers/watchdog/dw_wdt.c
@@ -135,6 +135,7 @@  static int dw_wdt_start(struct watchdog_device *wdd)
 	struct dw_wdt *dw_wdt = to_dw_wdt(wdd);
 
 	dw_wdt_set_timeout(wdd, wdd->timeout);
+	dw_wdt_ping(&dw_wdt->wdd);
 	dw_wdt_arm_system_reset(dw_wdt);
 
 	return 0;