[PATCH v3 09/13] dt-bindings: usb: mediatek,mtk-xhci: Switch to ports for USB connections

[Krzysztof Kozlowski]

On Fri, Jul 03, 2026 at 07:03:10PM +0800, Chen-Yu Tsai wrote:
> 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>
> Signed-off-by: Chen-Yu Tsai <wenst at chromium.org>
> ---
> Changes since v1:
> - Squashed DT binding revert and addition together
> - Dropped reviewed-by from Bartosz
> ---
>  .../bindings/usb/mediatek,mtk-xhci.yaml         | 17 +++++++++++++----
>  1 file changed, 13 insertions(+), 4 deletions(-)

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski at oss.qualcomm.com>

Best regards,
Krzysztof