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Use address 0 is safe because only one MDIO phy under mdio bus. Fix below CHECK_DTBS warnings: arm/boot/dts/nxp/imx/imx6dl-sabrelite.dtb: ethernet@2188000 (fsl,imx6q-fec): mdio: Unevaluated properties are not allowed ('ethernet-phy' was unexpected) from schema $id: http://devicetree.org/schemas/net/fsl,fec.yaml /home/lizhi/source/linux-upstream-pci/arch/arm/boot/dts/nxp/imx/imx6dl-sabrelite.dtb: ethernet-phy (ethernet-phy-ieee802.3-c22): 'reg' is a required property from schema $id: http://devicetree.org/schemas/net/ethernet-phy.yaml Signed-off-by: Frank Li --- arch/arm/boot/dts/nxp/imx/imx6qdl-sabrelite.dtsi | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/nxp/imx/imx6qdl-sabrelite.dtsi b/arch/arm/boot/dts/nxp/imx/imx6qdl-sabrelite.dtsi index 3b7d01065e87b2587a87f97438eea205be3222f8..d936732db46f07806ca07de4353ff47fe26e23b6 100644 --- a/arch/arm/boot/dts/nxp/imx/imx6qdl-sabrelite.dtsi +++ b/arch/arm/boot/dts/nxp/imx/imx6qdl-sabrelite.dtsi @@ -291,8 +291,9 @@ mdio { #address-cells = <1>; #size-cells = <0>; - ethphy: ethernet-phy { + ethphy: ethernet-phy@0 { compatible = "ethernet-phy-ieee802.3-c22"; + reg = <0>; txen-skew-ps = <0>; txc-skew-ps = <3000>; rxdv-skew-ps = <0>; -- 2.43.0