Question about "unit address format error" of DTC

[Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>]

Hi Rob, David,


I am just curious about a DTC warning.


For example,

soc {
    compatible = "simple-bus";
    #address-cells = <1>;
    #size-cells = <1>;
    ranges;

    foo@11111111 {
         compatible = "foo";
         reg = <0x54006800 0x40>;
    };
};

This emits the following warning.

Warning (simple_bus_reg): Node /soc/foo@11111111 simple-bus unit
address format error, expected "54006800"


But, if I replace "simple-bus" with "simple-mfd",
DTC is completely happy.

Why is this check limited to simple bus / PCI bus?

For other cases, is mismatching @<address>  allowed?



-- 
Best Regards
Masahiro Yamada
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