Re: [PATCH v2 1/2] dt-bindings: usb: Add binding for WCH CH334/CH335 hub controller

[Rob Herring (Arm)]

On Tue, 13 Jan 2026 17:58:26 +0800, Chaoyi Chen wrote:
> From: Chaoyi Chen <chaoyi.chen@xxxxxxxxxxxxxx>
> 
> The WCH CH334/CH335[0] are USB2.0 protocol compliant 4-port USB HUB
> controller chips, supporting USB2.0 high-speed and full-speed for
> upstream ports, and USB2.0 high-speed 480Mbps, full-speed 12Mbps and
> low-speed 1.5Mbps for downstream ports, supporting not only low-cost STT
> mode (single TT schedules 4 downstream ports in time share), but also
> supports high performance MTT mode (4 TTs each corresponding to 1 port,
> concurrent processing).
> 
> Add a device tree binding for it.
> 
> [0]: https://www.wch-ic.com/downloads/CH334DS1_PDF.html
> 
> Signed-off-by: Chaoyi Chen <chaoyi.chen@xxxxxxxxxxxxxx>
> ---
> Changes in v2:
> - Fix the incorrect reset GPIO polarity.
> - Use a more meaningful supply name.
> ---
>  .../devicetree/bindings/usb/wch,ch334.yaml    | 65 +++++++++++++++++++
>  1 file changed, 65 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/usb/wch,ch334.yaml
> 

Reviewed-by: Rob Herring (Arm) <robh@xxxxxxxxxx>