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path: root/drivers/usb/gadget/lpc32xx_udc.c
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Diffstat (limited to 'drivers/usb/gadget/lpc32xx_udc.c')
-rw-r--r--drivers/usb/gadget/lpc32xx_udc.c51
1 files changed, 4 insertions, 47 deletions
diff --git a/drivers/usb/gadget/lpc32xx_udc.c b/drivers/usb/gadget/lpc32xx_udc.c
index aa04089d6899..b943d8cdfbf7 100644
--- a/drivers/usb/gadget/lpc32xx_udc.c
+++ b/drivers/usb/gadget/lpc32xx_udc.c
@@ -1469,23 +1469,7 @@ static void done(struct lpc32xx_ep *ep, struct lpc32xx_request *req, int status)
status = req->req.status;
if (ep->lep) {
- enum dma_data_direction direction;
-
- if (ep->is_in)
- direction = DMA_TO_DEVICE;
- else
- direction = DMA_FROM_DEVICE;
-
- if (req->mapped) {
- dma_unmap_single(ep->udc->gadget.dev.parent,
- req->req.dma, req->req.length,
- direction);
- req->req.dma = 0;
- req->mapped = 0;
- } else
- dma_sync_single_for_cpu(ep->udc->gadget.dev.parent,
- req->req.dma, req->req.length,
- direction);
+ usb_gadget_unmap_request(&udc->gadget, &req->req, ep->is_in);
/* Free DDs */
udc_dd_free(udc, req->dd_desc_ptr);
@@ -1841,26 +1825,11 @@ static int lpc32xx_ep_queue(struct usb_ep *_ep,
}
if (ep->lep) {
- enum dma_data_direction direction;
struct lpc32xx_usbd_dd_gad *dd;
- /* Map DMA pointer */
- if (ep->is_in)
- direction = DMA_TO_DEVICE;
- else
- direction = DMA_FROM_DEVICE;
-
- if (req->req.dma == 0) {
- req->req.dma = dma_map_single(
- ep->udc->gadget.dev.parent,
- req->req.buf, req->req.length, direction);
- req->mapped = 1;
- } else {
- dma_sync_single_for_device(
- ep->udc->gadget.dev.parent, req->req.dma,
- req->req.length, direction);
- req->mapped = 0;
- }
+ status = usb_gadget_map_request(&udc->gadget, _req, ep->is_in);
+ if (status)
+ return status;
/* For the request, build a list of DDs */
dd = udc_dd_alloc(udc);
@@ -2977,7 +2946,6 @@ static int lpc32xx_start(struct usb_gadget *gadget,
}
udc->driver = driver;
- udc->gadget.dev.driver = &driver->driver;
udc->gadget.dev.of_node = udc->dev->of_node;
udc->enabled = 1;
udc->selfpowered = 1;
@@ -3026,7 +2994,6 @@ static int lpc32xx_stop(struct usb_gadget *gadget,
}
udc->enabled = 0;
- udc->gadget.dev.driver = NULL;
udc->driver = NULL;
return 0;
@@ -3248,12 +3215,6 @@ static int __init lpc32xx_udc_probe(struct platform_device *pdev)
udc_disable(udc);
udc_reinit(udc);
- retval = device_register(&udc->gadget.dev);
- if (retval < 0) {
- dev_err(udc->dev, "Device registration failure\n");
- goto dev_register_fail;
- }
-
/* Request IRQs - low and high priority USB device IRQs are routed to
* the same handler, while the DMA interrupt is routed elsewhere */
retval = request_irq(udc->udp_irq[IRQ_USB_LP], lpc32xx_usb_lp_irq,
@@ -3320,8 +3281,6 @@ irq_dev_fail:
irq_hp_fail:
free_irq(udc->udp_irq[IRQ_USB_LP], udc);
irq_lp_fail:
- device_unregister(&udc->gadget.dev);
-dev_register_fail:
dma_pool_destroy(udc->dd_cache);
dma_alloc_fail:
dma_free_coherent(&pdev->dev, UDCA_BUFF_SIZE,
@@ -3376,8 +3335,6 @@ static int lpc32xx_udc_remove(struct platform_device *pdev)
free_irq(udc->udp_irq[IRQ_USB_HP], udc);
free_irq(udc->udp_irq[IRQ_USB_LP], udc);
- device_unregister(&udc->gadget.dev);
-
clk_disable(udc->usb_otg_clk);
clk_put(udc->usb_otg_clk);
clk_disable(udc->usb_slv_clk);