Re: [PATCH V3 2/7] PM / OPP: Introduce "domain-performance-state" binding to OPP nodes

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                                ---> Parent domain-2 (Contains Perfomance states)
                                |
                                |

C.) DeviceX ---> Parent-domain-1 | | | ---> Parent domain-3 (Contains Perfomance states)

I'm a bit confused. How does a domain have 2 parent domains?

This comes from the early design of the generic PM domain, thus I assume we have some HW with such complex PM topology. However, I don't know if it is actually being used.

Moreover, the corresponding DT bindings for "power-domains" parents, can easily be extended to cover more than one parent. See more in Documentation/devicetree/bindings/power/power_domain.txt

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Kind regards Uffe