On Thu, Dec 14, 2017 at 10:13 PM, Fabio Estevam <festevam@xxxxxxxxx> wrote: > On Thu, Dec 14, 2017 at 7:01 PM, Krzysztof Kozlowski <krzk@xxxxxxxxxx> wrote: > >> Can anyone help why this W=1 triggers warning like these: >> arch/arm/boot/dts/exynos3250-artik5-eval.dtb: Warning >> (simple_bus_reg): Node /soc/syscon-poweroff missing or empty >> reg/ranges property >> arch/arm/boot/dts/exynos3250-artik5-eval.dtb: Warning >> (simple_bus_reg): Node /soc/syscon-reboot missing or empty reg/ranges >> property >> >> For a node without unit address? >> http://elixir.free-electrons.com/linux/v4.15-rc3/source/arch/arm/boot/dts/exynos-syscon-restart.dtsi >> >> AFAIR, if node does not have unit-address then it should not have >> reg/ranges property. Or maybe it is coming from parent's simple-bus? > > syscon-poweroff and syscon-reboot should be outside the soc bus. Thanks for reply! Isn't this property of a SoC? The registers used by syscon-poweroff/reboot are part of SoC power management unit. It does not refer to any externals. Why then it should be put outside of soc? Best regards, Krzysztof -- 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