The American Megatrends BIOS I am using can be configured to start the
Fintek watchdog prior to the UEFI payloads. To avoid BIOS updates that reset
this functionality going unnoticed, implement support for WDOG_HW_RUNNING.
Signed-off-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx>
---
v1 -> v2:
Use new WDOG_HW_RUNNING_SUPPORTED
---
drivers/watchdog/f71808e_wdt.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/watchdog/f71808e_wdt.c b/drivers/watchdog/f71808e_wdt.c
index 4f881a1d02bc..bc17264619d2 100644
--- a/drivers/watchdog/f71808e_wdt.c
+++ b/drivers/watchdog/f71808e_wdt.c
@@ -222,7 +222,7 @@ static int f71808e_wdt_init(struct f71808e_wdt *wd, struct device_d *dev)
{
struct watchdog *wdd = &wd->wdd;
const char * const *names = pulse_width_names;
- int wdt_conf;
+ unsigned long wdt_conf;
int ret;
superio_enter(wd->sioaddr);
@@ -262,6 +262,10 @@ static int f71808e_wdt_init(struct f71808e_wdt *wd, struct device_d *dev)
dev_info(dev, "reset reason: %s\n", reset_source_name());
+ set_bit(WDOG_HW_RUNNING_SUPPORTED, &wdd->status);
+ if (test_bit(F71808FG_FLAG_WD_EN, &wdt_conf))
+ set_bit(WDOG_HW_RUNNING, &wdd->status);
+
ret = watchdog_register(wdd);
if (ret)
return ret;
--
2.24.0.rc1
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