Re: Recommended notation for OPP to avoid DTC warnings

From: Mark Rutland
Date: Mon Feb 27 2017 - 05:54:31 EST


On Sun, Feb 26, 2017 at 02:18:03PM +0900, Masahiro Yamada wrote:
> Hi.
>
>
> Decumentation/devicetree/bindings/opp/opp.txt
> takes examples like this:
>
> opp@1000000000 {
> opp-hz = /bits/ 64 <1000000000>;
> opp-microvolt = <970000 975000 985000>;
> opp-microamp = <70000>;
> clock-latency-ns = <300000>;
> opp-suspend;
> };

> If we follow this notation and the device-tree is built with W=1,
> DTC warns like follows:
>
> Warning (unit_address_vs_reg): Node /opp_table0/opp@1000000000 has a
> unit name, but no reg property
>
> Is there a recommended notation to avoid it?
>
> Maybe, simply omit the "@" ?

I think just s/@/-/ should be fine, e.g. call the above opp-1000000000.

Thanks,
Mark.