[PATCH v4 10/14] dt-bindings: usb: mediatek,mtk-xhci: Switch to ports for USB connections

[Bartosz Golaszewski]

On Thu, 9 Jul 2026 11:57:15 +0200, Chen-Yu Tsai <wenst at chromium.org> said:
> This reverts commit 454a1e3cd36c113341d7b71e8e691c6e47ab4a8a.
>
> MediaTek's XHCI implementation supports both USB 2.0 High Speed (HS)
> and USB 3.x Super Speed (SS). The block can also be synthesized with
> either HS-only capability or HS+SS capability. The SSUSB controller
> handles the device or gadget mode. Saying that SSUSB handles the HS
> portion is wrong.
>
> For example, on the MT8195, the first two instances support both HS and
> SS, while the latter two instances support only HS.
>
> Switch to a "ports" sub-node for describing USB connections. Port 1 is
> Super Speed if the controller is SS-capable, otherwise it is High Speed.
> Port 2 is High Speed if SS-capable. This port mapping scheme directly
> matches what the hardware returns in its capability registers.
>
> Fixes: 454a1e3cd36c ("dt-bindings: usb: mediatek,mtk-xhci: Add port for SuperSpeed EP")
> Cc: AngeloGioacchino Del Regno <angelogioacchino.delregno at collabora.com>
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski at oss.qualcomm.com>
> Signed-off-by: Chen-Yu Tsai <wenst at chromium.org>
> ---

Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski at oss.qualcomm.com>