stingray-usb.dtsi is finally included by three dts files: bcm958802a802x.dts, bcm958742k.dts and bcm958742t.dts. I searched all these three entire expanded dts files, and each of them contains only one dma-ranges. No conversion range is specified, so it cannot work properly. I think this property "dma-ranges" is added by mistake, just remove it. Otherwise, the following error will be reported when any YAML detection is performed on arm64. arch/arm64/boot/dts/broadcom/stingray/stingray-usb.dtsi:7.3-14: Warning \ (dma_ranges_format): /usb:dma-ranges: empty "dma-ranges" property but \ its #address-cells (1) differs from / (2) arch/arm64/boot/dts/broadcom/stingray/stingray-usb.dtsi:7.3-14: Warning \ (dma_ranges_format): /usb:dma-ranges: empty "dma-ranges" property but \ its #size-cells (1) differs from / (2) Signed-off-by: Zhen Lei <thunder.leizhen@xxxxxxxxxx> --- arch/arm64/boot/dts/broadcom/stingray/stingray-usb.dtsi | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/arm64/boot/dts/broadcom/stingray/stingray-usb.dtsi b/arch/arm64/boot/dts/broadcom/stingray/stingray-usb.dtsi index 55259f973b5a9e4..9ac8be6c65aa031 100644 --- a/arch/arm64/boot/dts/broadcom/stingray/stingray-usb.dtsi +++ b/arch/arm64/boot/dts/broadcom/stingray/stingray-usb.dtsi @@ -4,7 +4,6 @@ */ usb { compatible = "simple-bus"; - dma-ranges; #address-cells = <1>; #size-cells = <1>; ranges = <0x0 0x0 0x68500000 0x00400000>; -- 1.8.3