Commit 1ffba905 authored Jun 12, 2018 by Minas Harutyunyan Committed by Felipe Balbi Jun 18, 2018

usb: dwc2: gadget: Fix issue in dwc2_gadget_start_isoc()



In case of requests queue is empty reset EP target_frame to
initial value.

This allow restarting ISOC traffic in case when function
driver queued requests with interruptions.

Tested-by: Zeng Tao <prime.zeng@hisilicon.com>
Signed-off-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

parent 3ec148eb

drivers/usb/dwc2/gadget.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -884,6 +884,7 @@ static void dwc2_gadget_start_isoc_ddma(struct dwc2_hsotg_ep *hs_ep)
		struct dwc2_dma_desc *desc;

		if (list_empty(&hs_ep->queue)) {
		hs_ep->target_frame = TARGET_FRAME_INITIAL;
		dev_dbg(hsotg->dev, "%s: No requests in queue\n", __func__);
		return;
		}