File snps,dwc3.yaml describes the schema of Synopsys DesignWare USB3 Controller, it directly or indirectly contains "$ref: usb.yaml". So the node name of "snps,dwc3" must start with "usb". Otherwise, the following warning will be displayed: Documentation/devicetree/bindings/usb/fsl,imx8mp-dwc3.example.dt.yaml: \ dwc3@38100000: $nodename:0: 'dwc3@38100000' does not match '^usb(@.*)?' From schema: Documentation/devicetree/bindings/usb/snps,dwc3.yaml In addition, replace "type: object" with "$ref: snps,dwc3.yaml#". Ensure that all properties of the child node comply with snps,dwc3.yaml. Signed-off-by: Zhen Lei <thunder.leizhen@xxxxxxxxxx> --- Documentation/devicetree/bindings/usb/fsl,imx8mp-dwc3.yaml | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/Documentation/devicetree/bindings/usb/fsl,imx8mp-dwc3.yaml b/Documentation/devicetree/bindings/usb/fsl,imx8mp-dwc3.yaml index cb4c6f6d3a33a3f..974032b1fda04fb 100644 --- a/Documentation/devicetree/bindings/usb/fsl,imx8mp-dwc3.yaml +++ b/Documentation/devicetree/bindings/usb/fsl,imx8mp-dwc3.yaml @@ -52,11 +52,8 @@ properties: # Required child node: patternProperties: - "^dwc3@[0-9a-f]+$": - type: object - description: - A child node must exist to represent the core DWC3 IP block - The content of the node is defined in dwc3.txt. + "^usb@[0-9a-f]+$": + $ref: snps,dwc3.yaml# required: - compatible @@ -87,7 +84,7 @@ examples: dma-ranges = <0x40000000 0x40000000 0xc0000000>; ranges; - dwc3@38100000 { + usb@38100000 { compatible = "snps,dwc3"; reg = <0x38100000 0x10000>; clocks = <&clk IMX8MP_CLK_HSIO_AXI>, -- 1.8.3