[PATCH] usb: dwc3: support USB 3.1 controllers

[Mattijs Korpershoek]

Hi Caleb,;

Thank you for the patch.

On jeu., avril 11, 2024 at 18:05, Caleb Connolly <caleb.connolly at linaro.org> wrote:

> The revision is different for these, add the additional check as in
> xhci-dwc3 core_init code.
>
> Signed-off-by: Caleb Connolly <caleb.connolly at linaro.org>

Reviewed-by: Mattijs Korpershoek <mkorpershoek at baylibre.com>

> ---
>  drivers/usb/dwc3/core.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
> index 96e850b7170f..db045f5822d4 100644
> --- a/drivers/usb/dwc3/core.c
> +++ b/drivers/usb/dwc3/core.c
> @@ -594,9 +594,10 @@ static int dwc3_core_init(struct dwc3 *dwc)
>  	int			ret;
>  
>  	reg = dwc3_readl(dwc->regs, DWC3_GSNPSID);
>  	/* This should read as U3 followed by revision number */
> -	if ((reg & DWC3_GSNPSID_MASK) != 0x55330000) {
> +	if ((reg & DWC3_GSNPSID_MASK) != 0x55330000 &&
> +	    (reg & DWC3_GSNPSID_MASK) != 0x33310000) {
>  		dev_err(dwc->dev, "this is not a DesignWare USB3 DRD Core\n");
>  		ret = -ENODEV;
>  		goto err0;
>  	}
> -- 
> 2.44.0