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Commit 46e172df authored by Neil Zhang's avatar Neil Zhang Committed by Felipe Balbi
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usb: gadget: mv_udc: use DMA API for status_req's dma address 



use DMA API for status_req's dma address, it is needed by dtd.

Signed-off-by: default avatarNeil Zhang <zhangwm@marvell.com>
Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent daec765d

drivers/usb/gadget/mv_udc_core.c

+8 −1
Original line number Diff line number Diff line
@@ -1385,6 +1385,13 @@ udc_prime_status(struct mv_udc *udc, u8 direction, u16 status, bool empty) 
	req->req.complete = NULL;

	req->dtd_count = 0;



	if (req->req.dma == DMA_ADDR_INVALID) {

		req->req.dma = dma_map_single(ep->udc->gadget.dev.parent,

				req->req.buf, req->req.length,

				ep_dir(ep) ? DMA_TO_DEVICE : DMA_FROM_DEVICE);

		req->mapped = 1;

	}



	/* prime the data phase */

	if (!req_to_dtd(req))

		retval = queue_dtd(ep, req);
@@ -2115,7 +2122,7 @@ static int __devinit mv_udc_probe(struct platform_device *dev) 


	/* allocate a small amount of memory to get valid address */

	udc->status_req->req.buf = kzalloc(8, GFP_KERNEL);

	udc->status_req->req.dma = virt_to_phys(udc->status_req->req.buf);

	udc->status_req->req.dma = DMA_ADDR_INVALID;



	udc->resume_state = USB_STATE_NOTATTACHED;

	udc->usb_state = USB_STATE_POWERED;