[PATCH V4] powerpc, powernv: Add OPAL platform event driver

[Stewart Smith]

Vipin K Parashar <vipin at linux.vnet.ibm.com> writes:
>> - What do UPSs do? It would seem that some common "this is what's about
>>    to happen to your power" would almost *have* to exist somewhat
>>    generically?
> UPS class tells about UPS status with system. FSP sends mbox messages 
> with UPS status along with
> UPS status bit which tells exactly as to what change is there in UPS 
> status like UPS installed, UPS battery low, UPS removed (By passed). We 
> plan to add support for these UPS events in skiboot to provide more
> UPS details.

I was thinking of UPSs on systems other than IBM FSP based POWER
systems.... like if I went down the street and bought one for $100 and
plugged it into my x86 desktop.