UPSTREAM: usb: dwc3: gadget: disable XFER_NOT_READY

[firefly-linux-kernel-4.4.55.git] / drivers / usb / dwc3 / gadget.c

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 2d13adb7649fa204a92638033de433cbd8b045ca..8233716efb3695571ce9c0d808384b5b3e656a83 100644 (file)
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -485,8 +485,10 @@ static int dwc3_gadget_set_ep_config(struct dwc3 *dwc, struct dwc3_ep *dep,
                params.param2 |= dep->saved_state;
        }
 
-       params.param1 = DWC3_DEPCFG_XFER_COMPLETE_EN
-               | DWC3_DEPCFG_XFER_NOT_READY_EN;
+       params.param1 = DWC3_DEPCFG_XFER_COMPLETE_EN;
+
+       if (dep->number <= 1 || usb_endpoint_xfer_isoc(desc))
+               params.param1 |= DWC3_DEPCFG_XFER_NOT_READY_EN;
 
        if (usb_ss_max_streams(comp_desc) && usb_endpoint_xfer_bulk(desc)) {
                params.param1 |= DWC3_DEPCFG_STREAM_CAPABLE