Re: [PATCH v3] thermal: Add QPNP PMIC temperature alarm driver

[Ivan T. Ivanov]

On Wed, 2014-10-29 at 17:32 +0200, Ivan T. Ivanov wrote:
> 
+
> > > +       chip->tz_dev = thermal_zone_device_register(node->name, TRIP_NUM, 0,
> > > +       chip, &qpnp_tz_ops, NULL,
> > 
> > Have you considered using of-thermal instead of doing your own specific thermal
> > zone registration? Having a glance look in this driver, most of the
> > operation are covered by of-thermal. Ahy concerns using of-thermal in
> > your case?
> > 
> 
> I just followed implementation found in "armada_thermal", "db8500-thermal",
> "dove_thermal", "imx_thermal", "kirkwood_thermal"...
> 
> Will look at of-thermal.
> 

Hm, the 15 drivers, which register its own thermal zone, against 4, which 
use of-thermal registration and one of them is OMAP, which have fallback
to its own zone registration :-). Anyway. I am afraid that if I use just
thermal_zone_of_sensor_register(), driver will lost ability to switch off 
hardware controlled shutdown sequence, which make it useless IMHO.

I don't see how driver can benefits from nice things provided by of-thermal.
There is no colling device associated with PMIC chip, pooling delays are of
no use, device uses interrupt, trip pints are predefined in hardware...

Please advice.

Regards,
Ivan
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