Could phosphor-hwmon support peci-sensors

[Duke Du (杜祥嘉)]

Hi Brad & James,
  Thanks for your reply, that's really helpful. 

Thanks. 
Duke, Du
----------
寄件者： Duke Du (杜祥嘉) <mailto:Duke.Du at quantatw.com>
Date: 2019年7月8日 週一 下午8:34
To: mailto:openbmc at lists.ozlabs.org <mailto:openbmc at lists.ozlabs.org>


Hi All,
  I have some problems with phosphor-hwmon. 
Could package phosphor-hwmon supports peci sensors such as cpu and dimm tempatures ? 
If yes, could you give me some hints that how do I write configuration for peci sensors, please :). 

Thanks. 
Duke, Du

----------
寄件者： Brad Bishop <mailto:bradleyb at fuzziesquirrel.com>
Date: 2019年7月9日 週二 上午1:54
To: Duke Du (杜祥嘉) <mailto:Duke.Du at quantatw.com>
Cc: mailto:openbmc at lists.ozlabs.org <mailto:openbmc at lists.ozlabs.org>


phosphor-hwmon should work with anything that implements the hwmon ABI.  
So I think to make PECI sensors work with phosphor-hwmon, you need hwmon 
drivers for PECI sensors.  I don't know if anyone is working on that.

I suspect the other sensor application - dbus-sensors supports PECI 
just fine.  But I don't know how it works, if it can be used without 
entity manager,  and/or if it can be run in parallel with 
phosphor-hwmon.

----------
寄件者： James Feist <mailto:james.feist at linux.intel.com>
Date: 2019年7月9日 週二 上午2:28
To: Brad Bishop <mailto:bradleyb at fuzziesquirrel.com>, Duke Du (杜祥嘉) <mailto:Duke.Du at quantatw.com>
Cc: mailto:openbmc at lists.ozlabs.org <mailto:openbmc at lists.ozlabs.org>, Jae Hyun Yoo <mailto:jae.hyun.yoo at linux.intel.com>


+ Jae, CPU Sensor Author

https://github.com/openbmc/dbus-sensors/blob/master/src/CPUSensorMain.cpp

CPU sensor currently supports PECI sensors 
https://github.com/openbmc/dbus-sensors/blob/master/src/CPUSensor.cpp

https://github.com/openbmc/entity-manager/blob/f861da89ed03f9ec556c5ed6ac819988c0c1f498/configurations/WFT%20Baseboard.json#L2181

It does require entity-manager currently, but it could be run in 
parallel with phosphor-hwmon.

-James