On 22-08-25 08:21:37, Pawel Laszczak wrote:
> ISO OUT endpoint is enabled during queuing first usb request
> in transfer ring and disabled when TRBERR is reported by controller.
> After TRBERR and before next transfer added to TR driver must again
> reenable endpoint but does not.
> To solve this issue during processing TRBERR event driver must
> set the flag EP_UPDATE_EP_TRBADDR in priv_ep->flags field.
>
> Fixes: 7733f6c32e36 ("usb: cdns3: Add Cadence USB3 DRD Driver")
> cc: <stable@xxxxxxxxxxxxxxx>
> Signed-off-by: Pawel Laszczak <pawell@xxxxxxxxxxx>
Acked-by: Peter Chen <peter.chen@xxxxxxxxxx>
> ---
> drivers/usb/cdns3/cdns3-gadget.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/usb/cdns3/cdns3-gadget.c b/drivers/usb/cdns3/cdns3-gadget.c
> index 682ceba25765..fa8263951e63 100644
> --- a/drivers/usb/cdns3/cdns3-gadget.c
> +++ b/drivers/usb/cdns3/cdns3-gadget.c
> @@ -1689,6 +1689,7 @@ static int cdns3_check_ep_interrupt_proceed(struct cdns3_endpoint *priv_ep)
> ep_cfg &= ~EP_CFG_ENABLE;
> writel(ep_cfg, &priv_dev->regs->ep_cfg);
> priv_ep->flags &= ~EP_QUIRK_ISO_OUT_EN;
> + priv_ep->flags |= EP_UPDATE_EP_TRBADDR;
> }
> cdns3_transfer_completed(priv_dev, priv_ep);
> } else if (!(priv_ep->flags & EP_STALLED) &&
> --
> 2.25.1
>
--
Thanks,
Peter Chen
