Neither simple-bus bindings nor dtc W=1 accept device nodes in soc@ node which do not have unit address. Therefore usethe address space of child device (actual DWC3 Controller) as the wrapper's address to fix: exynos5250-smdk5250.dtb: soc: usb3: {'compatible': ['samsung,exynos5250-dwusb3'], ... } should not be valid under {'type': 'object'} exynos5250.dtsi:638.16-653.5: Warning (simple_bus_reg): /soc/usb3: missing or empty reg/ranges property Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> --- arch/arm/boot/dts/exynos5250.dtsi | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi index 97e89859ba3d..510be05f50ed 100644 --- a/arch/arm/boot/dts/exynos5250.dtsi +++ b/arch/arm/boot/dts/exynos5250.dtsi @@ -635,8 +635,9 @@ i2s2: i2s@12d70000 { #sound-dai-cells = <1>; }; - usbdrd: usb3 { + usbdrd: usb-wrapper@12000000 { compatible = "samsung,exynos5250-dwusb3"; + reg = <0x12000000 0x10000>; clocks = <&clock CLK_USB3>; clock-names = "usbdrd30"; #address-cells = <1>; -- 2.34.1