Re: [PATCH v5] usb: mtu3: support the upstream devicetree binding

[Marek Vasut via U-Boot <u-boot@lists.u-boot-project.org>]

On 8/4/26 12:05 PM, Carlo Caione wrote:

[...]

> +++ b/doc/device-tree-bindings/usb/mediatek,mtu3.txt

You could easily swap in Linux 
Documentation/devicetree/bindings/usb/mediatek,mtu3.yaml and 
Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.yaml instead , 
and drop the mtu3.txt . But please do replace the binding documents in a 
separate patch.

[...]

> +++ b/drivers/usb/mtu3/Kconfig
> @@ -22,6 +22,7 @@ choice
>   config USB_MTU3_HOST
>   	bool "Host only mode"
>   	depends on USB_XHCI_HCD
> +	select SPL_OF_TRANSLATE if SPL_USB_HOST

Don't you need SPL variants of the MTU3 controller Kconfig symbols instead ?

>   	help
>   	  Select this when you want to use MTU3 in host mode only,
>   	  thereby the gadget feature will be regressed.

[...]

> +static int mtu3_bind_gadget(struct udevice *parent)
> +{
> +	struct udevice *dev;
> +	int ret;
> +
> +	/* Node-less device: name it after the controller for diagnostics. */
> +	ret = device_bind_driver(parent, "mtu3-peripheral",
> +				 ofnode_get_name(dev_ofnode(parent)), &dev);
> +	if (ret)
> +		dev_err(parent, "failed to bind peripheral mode\n");

Please also include the value of "ret" in printed error strings, it 
helps identify the issue faster. Please fix this for all such cases in 
this patch.

> +	return ret;
> +}
[...]

The rest looks good, thanks !