windfarm_fcu_controls: cpu-pump-0 <HW FAULT>

[Benjamin Herrenschmidt]

On Fri, 2013-08-02 at 21:08 +0200, Andreas Schwab wrote:
> wf_fcu_fan_get_rpm is returning EFAULT when reading the values for the
> cpu pump controls on the PowerMac7,3.  Also, wf_fcu_get_pump_minmax is
> unable to get the real limits and falls back to using the defaults.
> 
> Here is the output when DEBUG is defined:

Can you add some more printk's in there to check what's going on inside
wf_fcu_get_pump_minmax() ?

Also is it getting faults for both pumps ?

Does it work with the older driver ? (both the minmax and the reading of
the pump). What is the "failures" bitmask value ?

Cheers,
Ben.