Thread (7 messages) 7 messages, 3 authors, 2017-04-10

Re: Recommended notation for OPP to avoid DTC warnings

From: Viresh Kumar <viresh.kumar@linaro.org>
Date: 2017-02-27 04:09:45
Also in: linux-arm-kernel, linux-pm, lkml

On 26-02-17, 14:18, 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;
        };
        opp@1100000000 {
                opp-hz = /bits/ 64 <1100000000>;
                opp-microvolt = <980000 1000000 1010000>;
                opp-microamp = <80000>;
                clock-latency-ns = <310000>;
        };
        opp@1200000000 {
                opp-hz = /bits/ 64 <1200000000>;
                opp-microvolt = <1025000>;
                clock-latency-ns = <290000>;
                turbo-mode;
        };


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 would let Rob suggest something here.

-- 
viresh
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help