On 10/02/2023 23:32, Stephen Boyd wrote: >> >> If DTSI (and/or board DTS) is in arm64, you still need DTS or a link in >> arm directory. If such one is added, then the restrictions here can be >> removed. Have in mind that I did the same already for pinctrl. >> > > I'm saying that you put the dts file in arch/arm64/boot/dts/, compile > the dts to a dtb and stick it on a board that boots the kernel in arm32 > mode. If it is possible to boot the dtb on a CPU running in arm32 mode > then this restriction should be loosened to > > depends on ARM || ARM64 || COMPILE_TEST I get your point. I don't think we consider this as use case at all, especially that we are changing some of the boards from address-cells=1 to 2. Also whatever is happening out-of-tree it's out-of-tree problem. If we want to support such case, then the DTS would have to be in arch/arm directory (like we do for few boards). Best regards, Krzysztof