linux-kernel - Re: [PATCH 0/6] PM / Domains: Implement domain performance states

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Message-ID: <1683164.QFNep65OJ4@aspire.rjw.lan>
Date:   Mon, 06 Feb 2017 12:39:42 +0100
From:   "Rafael J. Wysocki" <rjw@...ysocki.net>
To:     Viresh Kumar <viresh.kumar@...aro.org>
Cc:     khilman@...libre.com, ulf.hansson@...aro.org,
        linaro-kernel@...ts.linaro.org, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org, Stephen Boyd <sboyd@...eaurora.org>,
        Nishanth Menon <nm@...com>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        robh+dt@...nel.org, mark.rutland@....com, lina.iyer@...aro.org,
        rnayak@...eaurora.org
Subject: Re: [PATCH 0/6] PM / Domains: Implement domain performance states

On Monday, February 06, 2017 11:05:05 AM Viresh Kumar wrote:
> On 16-01-17, 11:00, Viresh Kumar wrote:
> > On 03-01-17, 16:36, Viresh Kumar wrote:
> > > Hi,
> > > 
> > > An earlier series[1] tried to implement bindings for PM domain
> > > performance states. Rob Herring suggested that we can actually write the
> > > supporting code first instead of bindings, as that will make things
> > > easier to understand for all.
> > > 
> > > The bindings [1] aren't discarded yet and this series is based on a
> > > version of those only. The bindings are only used by the last patch,
> > > which should not be applied and is only sent for completeness.
> > > 
> > > All other patches can be reviewed/applied whenever the maintainers feel
> > > they look good.
> > > 
> > > 
> > > A brief summary of the problem this series is trying to solve:
> > > 
> > > Some platforms have the capability to configure the performance state of
> > > their Power Domains. The performance levels are represented by positive
> > > integer values, a lower value represents lower performance state.
> > > 
> > > We decided earlier that we should extend Power Domain framework to
> > > support active state power management as well.  The power-domains until
> > > now were only concentrating on the idle state management of the device
> > > and this needs to change in order to reuse the infrastructure of power
> > > domains for active state management.
> > > 
> > > The first 5 patches update the PM domain and QoS frameworks to support
> > > that and the last one presents the front end interface to it.
> > > 
> > > All the patches are tested by hacking the OPP core a bit for now.
> > 
> > Ping !
> 
> Ping !!

I've been waiting for comments from Kevin and Ulf.

I guess it's better to resend at this point.

Thanks,
Rafael