Re: [PATCH V4 1/9] PM / OPP: Allow OPP table to be used for power-domains

[Rob Herring]

On Mon, Mar 20, 2017 at 03:02:13PM +0530, Viresh Kumar wrote:
> Power-domains need to express their active states in DT and what's
> better than OPP table for that.
> 
> This patch allows power-domains to reuse OPP tables to express their
> active states. The "opp-hz" property isn't a required property anymore
> as power-domains may not always use them.

Then maybe you shouldn't be trying to make OPP table work here. At that 
point you just need a table of voltage(s) per performance state?

> Add a new property "domain-performance-state", which will contain
> positive integer values to represent performance levels of the
> power-domains as described in this patch.

Why not reference the OPP entries from the domain:

performance-states = <&opp1>, <&opp2>;

Just thinking out loud, not saying that is what you should do. The 
continual evolution of power (management) domain, idle state, and OPP 
bindings is getting tiring.

> Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
> ---
>  Documentation/devicetree/bindings/opp/opp.txt | 73 ++++++++++++++++++++++++++-
>  1 file changed, 71 insertions(+), 2 deletions(-)
>