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Commit 9e0838c6 authored by Manu Gautam's avatar Manu Gautam Committed by Sriharsha Allenki
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USB: dwc3: Add support for ISOC high bandwidth transfer in HS mode 



Program ISOC TRB so that DWC3 can initiate more than one data
transfer in a micro frame.

Change-Id: I9465faf7f0e88c05bfb2c013772d2ea3b43c93d7
Signed-off-by: default avatarManu Gautam <mgautam@codeaurora.org>
parent ce56ce78

drivers/usb/dwc3/gadget.c

+3 −0
Original line number Original line Diff line number Diff line
@@ -831,6 +831,7 @@ static void dwc3_prepare_one_trb(struct dwc3_ep *dep, 
	struct dwc3_trb		*trb;

	struct dwc3_trb		*trb;

	bool			zlp_appended = false;

	bool			zlp_appended = false;

	unsigned		rlen;

	unsigned		rlen;

	int			isoc_maxp;





	dev_vdbg(dwc->dev, "%s: req %pK dma %08llx length %d%s%s\n",

	dev_vdbg(dwc->dev, "%s: req %pK dma %08llx length %d%s%s\n",

			dep->name, req, (unsigned long long) dma,

			dep->name, req, (unsigned long long) dma,
@@ -864,6 +865,8 @@ update_trb: 
		break;

		break;





	case USB_ENDPOINT_XFER_ISOC:

	case USB_ENDPOINT_XFER_ISOC:

		isoc_maxp = usb_endpoint_maxp(dep->endpoint.desc);

		trb->size |= DWC3_TRB_SIZE_PCM1(isoc_maxp >> 11);

		if (!node)

		if (!node)

			trb->ctrl = DWC3_TRBCTL_ISOCHRONOUS_FIRST;

			trb->ctrl = DWC3_TRBCTL_ISOCHRONOUS_FIRST;

		else

		else