Re: windfarm_fcu_controls: cpu-pump-0 <HW FAULT>

Benjamin Herrenschmidt [off-list ref] writes:

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

All values from mpu->processor_part_num are 0xffff.

Also is it getting faults for both pumps ?

Yes.

Does it work with the older driver ? (both the minmax and the reading of
the pump).

The minmax situation is the same, but otherwise appears to work (no fan
reading errors logged).  Here is an example debug output:

** CPU 1 RPM: 300 Ex, 300, Pump: 1250, In, overtemp: 0
  cpu 0, exhaust RPM: 300
  cpu 0, temp raw: 023c, m_diode: 9982, b_diode: fffff799
  temp: 52.139
  cpu 0, current: 8.789, voltage: 1.286, power: 11.308 W
  cpu 1, exhaust RPM: 300
  cpu 1, temp raw: 021c, m_diode: a047, b_diode: fffff777
  temp: 50.380
  cpu 1, current: 8.666, voltage: 1.281, power: 11.108 W
  power target: 55.000, error: 43.691
  integral: 00f42f8d
   integ_p: 10
   adj_in_target: 65.011, ttarget: 74
   deriv_p: -15
   prop_p: -103
   sum: -118

What is the "failures" bitmask value ?

3 for both.

Andreas.

-- 
Andreas Schwab, schwab@linux-m68k.org
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On Sat, 2013-08-03 at 10:43 +0200, Andreas Schwab wrote:

Benjamin Herrenschmidt [off-list ref] writes:

quoted

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

All values from mpu->processor_part_num are 0xffff.

quoted

Also is it getting faults for both pumps ?

Yes.

quoted

Does it work with the older driver ? (both the minmax and the reading of
the pump).

The minmax situation is the same, but otherwise appears to work (no fan
reading errors logged).  Here is an example debug output:

Odd. Can you try to trace if there is any significant difference in the
i2c messages used ? Some typo I might have done somewhere ?

Something I might do at init time that puts them into a faulty state ?

I don't have one of these anymore (mine died) so I can't really test.

Cheers,
Ben.

** CPU 1 RPM: 300 Ex, 300, Pump: 1250, In, overtemp: 0
  cpu 0, exhaust RPM: 300
  cpu 0, temp raw: 023c, m_diode: 9982, b_diode: fffff799
  temp: 52.139
  cpu 0, current: 8.789, voltage: 1.286, power: 11.308 W
  cpu 1, exhaust RPM: 300
  cpu 1, temp raw: 021c, m_diode: a047, b_diode: fffff777
  temp: 50.380
  cpu 1, current: 8.666, voltage: 1.281, power: 11.108 W
  power target: 55.000, error: 43.691
  integral: 00f42f8d
   integ_p: 10
   adj_in_target: 65.011, ttarget: 74
   deriv_p: -15
   prop_p: -103
   sum: -118

quoted

What is the "failures" bitmask value ?

3 for both.

Andreas.