Re: [PATCH v2 7/8] [PATCH 7/8] drivers/hwmon: Add a generic PECI hwmon client driver

[Jae Hyun Yoo]

On 2/21/2018 4:37 PM, Andrew Lunn wrote:
> > But even with this change, it still needs to use delayed creation
> > because BMC side kernel doesn't know how many DIMMs are populated on
> > a remote server before the remote server completes its memory
> > training and testing in BIOS, but it needs to check the remote
> > server's CPU temperature as immediate as possible to make
> > appropriate thermal control based on the remote CPU's temperature to
> > avoid any critical thermal issue. What would be a better solution in
> > this case?
>
> You could change this driver so that it supports one DIMM.  Move the
> 'hotplug' part into another driver which creates and destroys
> instances of the hwmon DIMM device as the DIMMS come and go.
>
> Also, do you need to handle CPU hotplug? You could split the CPU
> temperature part into a separate hwmon driver? And again create and
> destroy devices as CPUs come and go?
>
> 	Andrew

That seems like a possible option. I'll rewrite the hwmon driver again 
like that.

Thanks for the good idea. :)

Jae