Re: [PATCH v3 3/4] arm64: dts: imx95: switch usb3 controller to flattened model

[sashiko-bot@kernel.org]

Thank you for your contribution! Sashiko AI review found 1 potential issue(s) to consider:
- [Low] The newly added wrapper node `bus@4c100000` contains a unit address but lacks a `reg` property, violating the Devicetree Specification and triggering a DTC warning.
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commit a2bcbb6922581174c083a123854fd752994b591f
Author: Xu Yang <xu.yang_2@nxp.com>

arm64: dts: imx95: switch usb3 controller to flattened model

This commit switches the USB3 controller to use a flattened model. It adds
a simple-bus wrapper to constrain the DMA address range so the controller
can access memory correctly.

> diff --git a/arch/arm64/boot/dts/freescale/imx95.dtsi b/arch/arm64/boot/dts/freescale/imx95.dtsi
> index 71394871d8dd0..80f935af5b49c 100644
> --- a/arch/arm64/boot/dts/freescale/imx95.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx95.dtsi
[ ... ]
> @@ -1772,45 +1772,45 @@ smmu: iommu@490d0000 {
[ ... ]
> +		bus@4c100000 {
> +			compatible = "simple-bus";
>  			#address-cells = <2>;
>  			#size-cells = <2>;
> -			ranges;
> -			power-domains = <&scmi_devpd IMX95_PD_HSIO_TOP>;
>  			dma-ranges = <0x0 0x0 0x0 0x0 0x10 0x0>;
> -			status = "disabled";
> +			ranges;

[Severity: Low]
Does this new wrapper node trigger a DTC unit_address_vs_reg warning?

Because the node has a unit address (@4c100000) but lacks a reg property,
it violates the devicetree specification. Empty ranges properties are
ignored by DTC for this check, which will result in a build warning when
compiling with W=1.

>  
> -			usb3_dwc3: usb@4c100000 {
[ ... ]

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Sashiko AI review · https://sashiko.dev/#/patchset/20260630103629.76604-1-xu.yang_2@oss.nxp.com?part=3