So seeing this warning: hexiwear_k64.dts_compiled: Warning (simple_bus_reg): /soc/ethernet@400C0004: simple-bus unit address format error, expected “400c0004” For this dts snippet: eth: ethernet@400C0004 { compatible = "nxp,kinetis-ethernet"; reg = <0x400C0004 0x620>; }; The question I have is that because of how the warning check is done, it implies that everything in the unit-address portion would need to be lowercase. In the dts spec we say: ‘The unit-address must match the first address specified in the reg property of the node.’. Not sure how strong we interpret ‘match’. So wondering if the check should be case insensitive? - k