usb: gadget: mv_udc_core: switch over to usb_gadget_map/unmap_request()

we have generic implementations for a reason,
let's use them

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

diff --git a/drivers/usb/gadget/mv_udc_core.c b/drivers/usb/gadget/mv_udc_core.c
index be35573..7f4d19d 100644 (file)
--- a/drivers/usb/gadget/mv_udc_core.c
+++ b/drivers/usb/gadget/mv_udc_core.c
@@ -237,18 +237,7 @@ static void done(struct mv_ep *ep, struct mv_req *req, int status)
                dma_pool_free(udc->dtd_pool, curr_td, curr_td->td_dma);
        }
 
-       if (req->mapped) {
-               dma_unmap_single(ep->udc->gadget.dev.parent,
-                       req->req.dma, req->req.length,
-                       ((ep_dir(ep) == EP_DIR_IN) ?
-                               DMA_TO_DEVICE : DMA_FROM_DEVICE));
-               req->req.dma = DMA_ADDR_INVALID;
-               req->mapped = 0;
-       } else
-               dma_sync_single_for_cpu(ep->udc->gadget.dev.parent,
-                       req->req.dma, req->req.length,
-                       ((ep_dir(ep) == EP_DIR_IN) ?
-                               DMA_TO_DEVICE : DMA_FROM_DEVICE));
+       usb_gadget_unmap_request(&udc->gadget, &req->req, ep_dir(ep));
 
        if (status && (status != -ESHUTDOWN))
                dev_info(&udc->dev->dev, "complete %s req %p stat %d len %u/%u",
@@ -732,21 +721,9 @@ mv_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags)
        req->ep = ep;
 
        /* map virtual address to hardware */
-       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;
-       } else {
-               dma_sync_single_for_device(ep->udc->gadget.dev.parent,
-                                       req->req.dma, req->req.length,
-                                       ep_dir(ep)
-                                               ? DMA_TO_DEVICE
-                                               : DMA_FROM_DEVICE);
-               req->mapped = 0;
-       }
+       retval = usb_gadget_map_request(&udc->gadget, _req, ep_dir(ep));
+       if (retval)
+               return retval;
 
        req->req.status = -EINPROGRESS;
        req->req.actual = 0;
@@ -780,18 +757,7 @@ mv_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags)
        return 0;
 
 err_unmap_dma:
-       if (req->mapped) {
-               dma_unmap_single(ep->udc->gadget.dev.parent,
-                               req->req.dma, req->req.length,
-                               ((ep_dir(ep) == EP_DIR_IN) ?
-                               DMA_TO_DEVICE : DMA_FROM_DEVICE));
-               req->req.dma = DMA_ADDR_INVALID;
-               req->mapped = 0;
-       } else
-               dma_sync_single_for_cpu(ep->udc->gadget.dev.parent,
-                               req->req.dma, req->req.length,
-                               ((ep_dir(ep) == EP_DIR_IN) ?
-                               DMA_TO_DEVICE : DMA_FROM_DEVICE));
+       usb_gadget_unmap_request(&udc->gadget, _req, ep_dir(ep));
 
        return retval;
 }
@@ -1528,14 +1494,7 @@ udc_prime_status(struct mv_udc *udc, u8 direction, u16 status, bool empty)
 
        return 0;
 out:
-       if (req->mapped) {
-               dma_unmap_single(ep->udc->gadget.dev.parent,
-                               req->req.dma, req->req.length,
-                               ((ep_dir(ep) == EP_DIR_IN) ?
-                               DMA_TO_DEVICE : DMA_FROM_DEVICE));
-               req->req.dma = DMA_ADDR_INVALID;
-               req->mapped = 0;
-       }
+       usb_gadget_unmap_request(&udc->gadget, &req->req, ep_dir(ep));
 
        return retval;
 }