diff options
Diffstat (limited to 'drivers/usb/gadget')
| -rw-r--r-- | drivers/usb/gadget/amd5536udc.c | 56 |
1 files changed, 25 insertions, 31 deletions
diff --git a/drivers/usb/gadget/amd5536udc.c b/drivers/usb/gadget/amd5536udc.c index 77352ccc245..d5b65962dd3 100644 --- a/drivers/usb/gadget/amd5536udc.c +++ b/drivers/usb/gadget/amd5536udc.c @@ -2378,40 +2378,34 @@ static irqreturn_t udc_data_in_isr(struct udc *dev, int ep_ix) if (!ep->cancel_transfer && !list_empty(&ep->queue)) { req = list_entry(ep->queue.next, struct udc_request, queue); - if (req) { - /* - * length bytes transfered - * check dma done of last desc. in PPBDU mode - */ - if (use_dma_ppb_du) { - td = udc_get_last_dma_desc(req); - if (td) { - dma_done = - AMD_GETBITS(td->status, - UDC_DMA_IN_STS_BS); - /* don't care DMA done */ - req->req.actual = - req->req.length; - } - } else { - /* assume all bytes transferred */ + /* + * length bytes transfered + * check dma done of last desc. in PPBDU mode + */ + if (use_dma_ppb_du) { + td = udc_get_last_dma_desc(req); + if (td) { + dma_done = + AMD_GETBITS(td->status, + UDC_DMA_IN_STS_BS); + /* don't care DMA done */ req->req.actual = req->req.length; } + } else { + /* assume all bytes transferred */ + req->req.actual = req->req.length; + } - if (req->req.actual == req->req.length) { - /* complete req */ - complete_req(ep, req, 0); - req->dma_going = 0; - /* further request available ? */ - if (list_empty(&ep->queue)) { - /* disable interrupt */ - tmp = readl( - &dev->regs->ep_irqmsk); - tmp |= AMD_BIT(ep->num); - writel(tmp, - &dev->regs->ep_irqmsk); - } - + if (req->req.actual == req->req.length) { + /* complete req */ + complete_req(ep, req, 0); + req->dma_going = 0; + /* further request available ? */ + if (list_empty(&ep->queue)) { + /* disable interrupt */ + tmp = readl(&dev->regs->ep_irqmsk); + tmp |= AMD_BIT(ep->num); + writel(tmp, &dev->regs->ep_irqmsk); } } } |