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usb: gadget: mv_udc: use DMA API for status_req's dma address

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

Signed-off-by: Neil Zhang <zhangwm@marvell.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Neil Zhang 2011-10-12 16:49:37 +08:00 committed by Felipe Balbi
parent daec765da7
commit 46e172dfb3
1 changed files with 8 additions and 1 deletions
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9
drivers/usb/gadget/mv_udc_core.c
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@ -1385,6 +1385,13 @@ udc_prime_status(struct mv_udc *udc, u8 direction, u16 status, bool empty)
req->req.complete = NULL; req->req.complete = NULL;
req->dtd_count = 0; 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 */ /* prime the data phase */
if (!req_to_dtd(req)) if (!req_to_dtd(req))
retval = queue_dtd(ep, 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 */ /* allocate a small amount of memory to get valid address */
udc->status_req->req.buf = kzalloc(8, GFP_KERNEL); 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->resume_state = USB_STATE_NOTATTACHED;
udc->usb_state = USB_STATE_POWERED; udc->usb_state = USB_STATE_POWERED;