Re: [v4,1/1] hwmon: (nct7904) Add watchdog function
From: Guenter Roeck
Date: Tue Jun 02 2020 - 09:29:00 EST
On 6/2/20 1:01 AM, Geert Uytterhoeven wrote:
> Hi Yuechao,
> On Tue, Mar 31, 2020 at 7:30 AM <yuechao.zhao@xxxxxxxxxxxxxxxx> wrote:
>> From: Yuechao Zhao <yuechao.zhao@xxxxxxxxxxxxxxxx>
>> implement watchdong functionality into the "hwmon/nct7904.c"
>> Signed-off-by: Yuechao Zhao <yuechao.zhao@xxxxxxxxxxxxxxxx>
> Thanks for your patch, which is now commit 77849a552d142ef5 ("hwmon:
> (nct7904) Add watchdog function").
>> --- a/drivers/hwmon/Kconfig
>> +++ b/drivers/hwmon/Kconfig
>> @@ -1340,10 +1340,12 @@ config SENSORS_NCT7802
>> config SENSORS_NCT7904
>> tristate "Nuvoton NCT7904"
>> - depends on I2C
>> + depends on I2C && WATCHDOG
>> + select WATCHDOG_CORE
> This makes the driver unselectable if WATCHDOG is not set.
> Is there a use case for using this driver without watchdog functionality?
> If yes, it might make sense to make the watchdog support optional,
> protected by #ifdef CONFIG_WATCHDOG, and change the above to
We use the same pattern in other hwmon drivers which also implement
watchdog functionality, so I am not particularly concerned about it.
> depends on I2C
> select WATCHDOG_CORE if WATCHDOG
> If no, please ignore my email.
>> If you say yes here you get support for the Nuvoton NCT7904
>> - hardware monitoring chip, including manual fan speed control.
>> + hardware monitoring chip, including manual fan speed control
>> + and support for the integrated watchdog.
>> This driver can also be built as a module. If so, the module
>> will be called nct7904.
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
> In personal conversations with technical people, I call myself a hacker. But
> when I'm talking to journalists I just say "programmer" or something like that.
> -- Linus Torvalds