Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-16 17:12:06 +00:00
Code Issues Packages Projects Releases Wiki Activity

usb: gadget: amd5536: use generic map/unmap routines

Browse Source 
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>
This commit is contained in:
Felipe Balbi 2011-12-19 12:01:28 +02:00
parent ade78f9feb
commit 220e860009
1 changed files with 6 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

33
drivers/usb/gadget/amd5536udc.c
View File

@ -827,20 +827,8 @@ __acquires(ep->dev->lock)
dev = ep->dev;
/* unmap DMA */
if (req->dma_mapping) {
if (ep->in)
pci_unmap_single(dev->pdev,
req->req.dma,
req->req.length,
PCI_DMA_TODEVICE);
else
pci_unmap_single(dev->pdev,
req->req.dma,
req->req.length,
PCI_DMA_FROMDEVICE);
req->dma_mapping = 0;
req->req.dma = DMA_DONT_USE;
}
if (ep->dma)
usb_gadget_unmap_request(&dev->gadget, &req->req, ep->in);
halted = ep->halted;
ep->halted = 1;
@ -1089,20 +1077,11 @@ udc_queue(struct usb_ep *usbep, struct usb_request *usbreq, gfp_t gfp)
return -ESHUTDOWN;
/* map dma (usually done before) */
if (ep->dma && usbreq->length != 0
&& (usbreq->dma == DMA_DONT_USE || usbreq->dma == 0)) {
if (ep->dma) {
VDBG(dev, "DMA map req %p\n", req);
if (ep->in)
usbreq->dma = pci_map_single(dev->pdev,
usbreq->buf,
usbreq->length,
PCI_DMA_TODEVICE);
else
usbreq->dma = pci_map_single(dev->pdev,
usbreq->buf,
usbreq->length,
PCI_DMA_FROMDEVICE);
req->dma_mapping = 1;
retval = usb_gadget_map_request(&udc->gadget, usbreq, ep->in);
if (retval)
return retval;
}
VDBG(dev, "%s queue req %p, len %d req->td_data=%p buf %p\n",