On 2018-02-23 14:31, Rasmus Villemoes wrote: > A single u32 is sufficient to specify a register in the Device > Configuration Unit/Supplemental Configuration Unit. Moreover, they only > consist of 32 bit registers (for the DCFG we even have "These registers > only support 32-bit accesses." according to the reference manual), so no > size specification is needed. > > Signed-off-by: Rasmus Villemoes <rasmus.villemoes@xxxxxxxxx> > --- > None of the in-tree .dts files using ls1021a.dtsi currently define a > subnode of either node. It is possible, though somewhat unlikely, that > some out-of-tree .dts file is built against the in-tree ls1021a.dtsi, > and I don't know if such files are treated the same as out-of-tree > modules (i.e., they get to fix the breakage). > > The reason I'm proposing to add these is that I'm about to add a subnode > of scfg with a reg property, and if possible I'd like to avoid the > somewhat clumsy > > reg = <0 0x1ac 0 4>; Ah, apparently I've misunderstood how address-cells/size-cells worked; I thought they would be taken from the nearest ancestor node specifying them, so that 2/2 would apply to scfg. But it seems they have to be present in the parent node itself, otherwise defaulting to 2/1. So the above should be <0 0x1ac 4>, which is still clumsier than needed. Rasmus -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
