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authorFabio Estevam <festevam@gmail.com>2020-04-12 20:01:22 -0300
committerWim Van Sebroeck <wim@linux-watchdog.org>2020-05-25 08:55:40 +0200
commite56d48e92b1017b6a8dbe64923a889283733fd96 (patch)
treedcbaf1098236ecacf4a24f310bfe13881b986848 /drivers/watchdog
parent0f0dbd9b36bbca6ffc0852d7859edc0ac8f11727 (diff)
watchdog: imx_sc_wdt: Fix reboot on crash
Currently when running the samples/watchdog/watchdog-simple.c application and forcing a kernel crash by doing: # ./watchdog-simple & # echo c > /proc/sysrq-trigger The system does not reboot as expected. Fix it by calling imx_sc_wdt_set_timeout() to configure the i.MX8QXP watchdog with a proper timeout. Cc: <stable@vger.kernel.org> Fixes: 986857acbc9a ("watchdog: imx_sc: Add i.MX system controller watchdog support") Reported-by: Breno Lima <breno.lima@nxp.com> Signed-off-by: Fabio Estevam <festevam@gmail.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Tested-by: Breno Lima <breno.lima@nxp.com> Link: https://lore.kernel.org/r/20200412230122.5601-1-festevam@gmail.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Diffstat (limited to 'drivers/watchdog')
-rw-r--r--drivers/watchdog/imx_sc_wdt.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/watchdog/imx_sc_wdt.c b/drivers/watchdog/imx_sc_wdt.c
index 60a32469f7de..e9ee22a7cb45 100644
--- a/drivers/watchdog/imx_sc_wdt.c
+++ b/drivers/watchdog/imx_sc_wdt.c
@@ -175,6 +175,11 @@ static int imx_sc_wdt_probe(struct platform_device *pdev)
wdog->timeout = DEFAULT_TIMEOUT;
watchdog_init_timeout(wdog, 0, dev);
+
+ ret = imx_sc_wdt_set_timeout(wdog, wdog->timeout);
+ if (ret)
+ return ret;
+
watchdog_stop_on_reboot(wdog);
watchdog_stop_on_unregister(wdog);