pinctrl in phosphor-hwmon

[Matt Spinler]

On 12/9/2019 11:08 PM, Deng Tyler wrote:
> Hi Matt:
>     Thank for your response that's really helpful. I check the link 
> and it seems allow a gpio set to high before/after reading a 
> correspond sensor. Is it possible change 2 gpio to high/low for 
> reading a correspond sensor?

That isn't possible in the current code, but I don't see why someone 
couldn't add that feature.

>
> Regards,
> Tyler
>
> Matt Spinler <mspinler at linux.ibm.com <mailto:mspinler at linux.ibm.com>> 
> 於 2019年12月9日 週一 下午10:58寫道：
>
>
>
>     On 12/9/2019 6:15 AM, Deng Tyler wrote:
>     > Hi all:
>     >     Does phosphor-hwmon support changing gpio pin before read
>     > /sys/class/hwmon/hwmon0/fan*_input while monitoring fan sensor?
>     In my
>     > platform, fans gpio are connect to pin-mux and I need control gpio
>     > before get fan tach rpm.
>
>     It does have the ability to modify a GPIO before/after a reading:
>     https://github.com/openbmc/phosphor-hwmon/blob/master/mainloop.cpp#L447
>
>     configured by some lines in the conf file, like:
>     https://github.com/openbmc/meta-ibm/blob/master/meta-romulus/recipes-phosphor/sensors/phosphor-hwmon/obmc/hwmon/iio-hwmon-battery.conf#L4
>
>     >
>     > Regards,
>     > Tyler
>