Re: [PATCH 0/2] PM / OPP: updates to enable sharing OPPs info

[Sudeep KarkadaNagesha]

Hi Rob, Grant,

On 01/05/13 12:11, Sudeep KarkadaNagesha wrote:
> From: Sudeep KarkadaNagesha <sudeep.karkadanagesha@xxxxxxx>
> 
> These are couple of updates to existing PM/OPP library to support
> sharing of OPPs between different device nodes.
> 
> Currently all the cpu nodes are parsed until the OPPs are found. This
> is essential to support cpuhotplug without having to replicate OPP
> information in all the cpu nodes.
> 
> However in systems with multiple cpu power domain, its better to have
> OPP entry for each cpu. To avoid replication, phandle can be specified
> to the node which contains the full OPP information.
> 
Is proposed option of phandle for OPP acceptable to avoid replication ?
Any suggestions to proceed on this ? This is needed to support CPU
hotplug on big LITTLE system where current methods like parsing all the
nodes or just CPU0 node will not work.

Regards,
Sudeep

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