[PATCH 2/2] arm64: dts: rockchip: fix USB 3.0 bottom port for Radxa ROCK 5B

[Heiko Stübner]

Am Samstag, 30. November 2024, 02:40:43 CET schrieb FUKAUMI Naoki:
> add rockchip,dp-lane-mux to usbdp_phy1 to make it work properly.

Make it work properly is not an ideal commit description.

I guess the lane assignment for the dp port should be discoverable
in the device schematics, so the commit description should explain
as much.


Heiko

> tested with ELECOM U3HC-A424P10BK[1]:
> 
> $ lsusb -t
> /:  Bus 001.Port 001: Dev 001, Class=root_hub, Driver=ehci-platform/1p, 480M
>     |__ Port 001: Dev 002, If 0, Class=Hub, Driver=hub/4p, 480M
>         |__ Port 003: Dev 003, If 0, Class=Wireless, Driver=btusb, 12M
>         |__ Port 003: Dev 003, If 1, Class=Wireless, Driver=btusb, 12M
> /:  Bus 002.Port 001: Dev 001, Class=root_hub, Driver=ohci-platform/1p, 12M
> /:  Bus 003.Port 001: Dev 001, Class=root_hub, Driver=ehci-platform/1p, 480M
> /:  Bus 004.Port 001: Dev 001, Class=root_hub, Driver=xhci-hcd/1p, 480M
> /:  Bus 005.Port 001: Dev 001, Class=root_hub, Driver=xhci-hcd/1p, 5000M
>     |__ Port 001: Dev 002, If 0, Class=Mass Storage, Driver=usb-storage, 5000M
> /:  Bus 006.Port 001: Dev 001, Class=root_hub, Driver=xhci-hcd/1p, 480M
>     |__ Port 001: Dev 002, If 0, Class=Hub, Driver=hub/5p, 480M
>         |__ Port 005: Dev 003, If 0, Class=Billboard, Driver=[none], 480M
> /:  Bus 007.Port 001: Dev 001, Class=root_hub, Driver=xhci-hcd/1p, 5000M
>     |__ Port 001: Dev 002, If 0, Class=Hub, Driver=hub/4p, 5000M
>         |__ Port 004: Dev 003, If 0, Class=Mass Storage, Driver=usb-storage, 5000M
> /:  Bus 008.Port 001: Dev 001, Class=root_hub, Driver=xhci-hcd/1p, 480M
> /:  Bus 009.Port 001: Dev 001, Class=root_hub, Driver=xhci-hcd/1p, 5000M
>     |__ Port 001: Dev 002, If 0, Class=Mass Storage, Driver=usb-storage, 5000M
> 
> [1] https://www.elecom.co.jp/products/U3HC-A424P10BK.html
> 
> Signed-off-by: FUKAUMI Naoki <naoki at radxa.com>
> ---
>  arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
> index c5776e3b4aab..43fc1f24dfc9 100644
> --- a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
> +++ b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
> @@ -918,6 +918,7 @@ &usbdp_phy0 {
>  };
>  
>  &usbdp_phy1 {
> +	rockchip,dp-lane-mux = <2 3>;
>  	status = "okay";
>  };
>  
>