[PATCH] usb: dwc3: support USB 3.1 controllers

[neil.armstrong at linaro.org]

On 11/04/2024 18:05, Caleb Connolly 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>
> ---
>   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;
>   	}

Reviewed-by: Neil Armstrong <neil.armstrong at linaro.org>
Tested-by: Neil Armstrong <neil.armstrong at linaro.org> # on SM8550