usb: gadget: goku: use generic map/unmap routines

those routines have everything we need to map/unmap
USB requests and it's better to use them.

Signed-off-by: Felipe Balbi <balbi@ti.com>

diff --git a/drivers/usb/gadget/goku_udc.c b/drivers/usb/gadget/goku_udc.c
index 5977749..e1dfd32 100644 (file)
--- a/drivers/usb/gadget/goku_udc.c
+++ b/drivers/usb/gadget/goku_udc.c
@@ -311,12 +311,9 @@ done(struct goku_ep *ep, struct goku_request *req, int status)
                status = req->req.status;
 
        dev = ep->dev;
-       if (req->mapped) {
-               pci_unmap_single(dev->pdev, req->req.dma, req->req.length,
-                       ep->is_in ? PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE);
-               req->req.dma = DMA_ADDR_INVALID;
-               req->mapped = 0;
-       }
+
+       if (ep->dma)
+               usb_gadget_unmap_request(&dev->gadget, &req->req, ep->is_in);
 
 #ifndef USB_TRACE
        if (status && status != -ESHUTDOWN)
@@ -737,10 +734,11 @@ goku_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags)
                return -EBUSY;
 
        /* set up dma mapping in case the caller didn't */
-       if (ep->dma && _req->dma == DMA_ADDR_INVALID) {
-               _req->dma = pci_map_single(dev->pdev, _req->buf, _req->length,
-                       ep->is_in ? PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE);
-               req->mapped = 1;
+       if (ep->dma) {
+               status = usb_gadget_map_request(&dev->gadget, &req->req,
+                               ep->is_in);
+               if (status)
+                       return status;
        }
 
 #ifdef USB_TRACE