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

[Grant Likely]

On Tue, 21 May 2013 11:00:35 +0100, Sudeep KarkadaNagesha <Sudeep.KarkadaNagesha@xxxxxxx> wrote:
> 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.

Looks fine to me.

g.

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