[PATCH 4/5] ARM: dts: exynos: add support for ISP power domain to exynos4x12 clocks device

[Ulf Hansson]

[...]

>>> I see some serious design problems with multiple entries in power domains
>>> property. First how to show that some part of the device IS NOT in
>>> any domain?
>>
>> Is that even possible? Every device should be in some power
>> domain, even if it's just an "always on" power domain that we
>> don't really control from software.
>
>
> Right now none dts of which I'm aware of doesn't define the power domain for
> the parts of the SoC, which are always on and doesn't need any additional
> management.

Actually there's is one reason for doing this, as it would allow
devices to be monitored for device PM QoS constraints by the genpd
governor.

Although, I doubt's someone actually does it because of this benefit,
at least yet.

[...]

Kind regards
Uffe