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.fat...@pengutronix.de>
---
v2 -> v3:
Use new enum wdog_hw_running
v1 -> v2:
Use new WDOG_HW_RUNNING_SUPPORTED
---
drivers/watchdog/f71808e_wdt.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/watchdog/f71808e_wdt.c b/drivers/watchdog/f71808e_wdt.c
index 4f881a1d02bc..5307ab0b3ead 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 +262,11 @@ static int f71808e_wdt_init(struct f71808e_wdt *wd, struct
device_d *dev)
dev_info(dev, "reset reason: %s\n", reset_source_name());
+ if (test_bit(F71808FG_FLAG_WD_EN, &wdt_conf))
+ wdd->running = WDOG_HW_RUNNING;
+ else
+ wdd->running = WDOG_HW_NOT_RUNNING;
+
ret = watchdog_register(wdd);
if (ret)
return ret;
--
2.24.0.rc1
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