diff options
| author |   Mika Westerberg <mika.westerberg@linux.intel.com> | 2016-10-20 18:03:36 +0300 |
|---|---|---|
| committer |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2016-10-21 01:28:33 +0200 |
| commit | 28e3d7002ba9f773662b2cf75d28cadfa29dc442 (patch) | |
| tree | 8c8f43b6566b0643ca36a43e8f6b03a074bc9c77 /drivers/watchdog/wdat_wdt.c | |
| parent | watchdog: wdat_wdt: Fix warning for using 0 as NULL (diff) | |
| download | linux-dev-28e3d7002ba9f773662b2cf75d28cadfa29dc442.tar.xz linux-dev-28e3d7002ba9f773662b2cf75d28cadfa29dc442.zip | |
watchdog: wdat_wdt: Ping the watchdog on resume
It turns out we need to ping the watchdog hardware on resume when we
re-program it. Otherwise this causes inadvertent reset to trigger
right after the resume is complete.
Fixes: 058dfc767008 (ACPI / watchdog: Add support for WDAT hardware watchdog)
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to '')
| -rw-r--r-- | drivers/watchdog/wdat_wdt.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/watchdog/wdat_wdt.c b/drivers/watchdog/wdat_wdt.c index e473e3b23720..6d1fbda0f461 100644 --- a/drivers/watchdog/wdat_wdt.c +++ b/drivers/watchdog/wdat_wdt.c @@ -499,6 +499,10 @@ static int wdat_wdt_resume_noirq(struct device *dev) ret = wdat_wdt_enable_reboot(wdat); if (ret) return ret; + + ret = wdat_wdt_ping(&wdat->wdd); + if (ret) + return ret; } return wdat_wdt_start(&wdat->wdd); |