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| author | Ahmad Fatoum <a.fatoum@pengutronix.de> | 2019-11-22 14:39:29 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2019-11-25 09:32:15 +0100 |
| commit | 1d86578493aaddf04672731275e5e2df0f2dda94 (patch) | |
| tree | f9c0564aba14a88bfc9fb33125c8f3a6ae2ee51d /drivers | |
| parent | 0ae3c6ab8eaf2291905541914d972320cfa0910c (diff) | |
| download | barebox-1d86578493aaddf04672731275e5e2df0f2dda94.tar.gz barebox-1d86578493aaddf04672731275e5e2df0f2dda94.tar.xz | |
watchdog: stm32_iwdg: explicitly set .running to UNSUPPORTED
I've spent some time trying to get the ONF (Watchdog enable status)
bit in the IWDG_SR register to read as something other than zero.
It has since been confirmed to be non-functional[1]. To avoid someone
else spending time on this, document that running status is unsupported
on this hardware explicitly.
No functional change as UNSUPPORTED is already the default.
[1]: https://www.spinics.net/lists/arm-kernel/msg770527.html
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/watchdog/stm32_iwdg.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/watchdog/stm32_iwdg.c b/drivers/watchdog/stm32_iwdg.c index 4d252e558c..9fcb5e420d 100644 --- a/drivers/watchdog/stm32_iwdg.c +++ b/drivers/watchdog/stm32_iwdg.c @@ -256,6 +256,7 @@ static int stm32_iwdg_probe(struct device_d *dev) wdd->set_timeout = stm32_iwdg_set_timeout; wdd->timeout_max = (RLR_MAX + 1) * data->max_prescaler * 1000; wdd->timeout_max /= wd->rate * 1000; + wdd->running = WDOG_HW_RUNNING_UNSUPPORTED; /* ONF bit not present in IP */ ret = watchdog_register(wdd); if (ret) { |