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Commit 2c78c029 authored by Felipe Balbi's avatar Felipe Balbi
Browse files

usb: dwc3: gadget: interrupt on ring full too 



If the ring is full and we are processing a big
sglist, then let's interrupt so we can, later, add
more TRBs to the ring.

Signed-off-by: default avatarFelipe Balbi <felipe.balbi@linux.intel.com>
parent 0b3e4af3

drivers/usb/dwc3/gadget.c

+4 −1
Original line number Diff line number Diff line
@@ -758,6 +758,8 @@ static void dwc3_gadget_ep_free_request(struct usb_ep *ep, 
	kfree(req);

}



static u32 dwc3_calc_trbs_left(struct dwc3_ep *dep);



/**

 * dwc3_prepare_one_trb - setup one TRB from one request

 * @dep: endpoint for which this request is prepared
@@ -818,7 +820,8 @@ static void dwc3_prepare_one_trb(struct dwc3_ep *dep, 
	/* always enable Continue on Short Packet */

	trb->ctrl |= DWC3_TRB_CTRL_CSP;



	if (!req->request.no_interrupt && !chain)

	if ((!req->request.no_interrupt && !chain) ||

			(dwc3_calc_trbs_left(dep) == 0))

		trb->ctrl |= DWC3_TRB_CTRL_IOC | DWC3_TRB_CTRL_ISP_IMI;



	if (chain)