[PATCH] usb: xhci-dwc3: Add "apple,t8103-dwc3" compatible

[Neal Gompa]

On Fri, Jan 9, 2026 at 2:41 PM Janne Grunau <j at jannau.net> wrote:
>
> The Linux support for dwc3 on Apple silicon SoCs switched to using a
> apple specific glue driver [1] that uses it own compatible string. The
> glue driver handles platform specific requirements on the interaction
> between dwc3 and the USB2/USB3 PHY and reset-controller for USB role
> switches and plug events.
> To keep USB working as before when the nodes still carried "snps,dwc3"
> as compatible add "apple,t8103-dwc3" to the of match table. Eventually
> it is probably advisable to add a dwc3-apple glue driver and write code
> for the currently empty Apple Type-C PHY driver in phy-apple-atc.c.
>
> Link: https://lore.kernel.org/asahi/20251015-b4-aplpe-dwc3-v2-0-cbd65a2d511a@kernel.org/ [1]
> Signed-off-by: Janne Grunau <j at jannau.net>
> ---
>  drivers/usb/host/xhci-dwc3.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/usb/host/xhci-dwc3.c b/drivers/usb/host/xhci-dwc3.c
> index e3e0ceff43e6abdb8643f265819eff28c2c802f4..ba42c3247654b7d9272c42ea9c4cf0bd9082915e 100644
> --- a/drivers/usb/host/xhci-dwc3.c
> +++ b/drivers/usb/host/xhci-dwc3.c
> @@ -238,6 +238,7 @@ static int xhci_dwc3_remove(struct udevice *dev)
>
>  static const struct udevice_id xhci_dwc3_ids[] = {
>         { .compatible = "snps,dwc3" },
> +       { .compatible = "apple,t8103-dwc3" },
>         { }
>  };
>
>
> ---
> base-commit: 127a42c7257a6ffbbd1575ed1cbaa8f5408a44b3
> change-id: 20260109-usb-dwc3-apple-compat-linux-821ee75bec48
>

Reviewed-by: Neal Gompa <neal at gompa.dev>


-- 
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