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Commit 3fc0a7c3 authored by Mian Yousaf Kaukab's avatar Mian Yousaf Kaukab Committed by Felipe Balbi
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usb: gadget: net2280: unconditionally reset dma in usb_reset 



If ep->dma is set, abort_dma() takes care of dma clean-up. If ep->dma
is not set, unconditionally reset dma channel.

Tested-by: default avatarRicardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: default avatarMian Yousaf Kaukab <yousaf.kaukab@intel.com>
Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent e6ac4bb0

drivers/usb/gadget/udc/net2280.c

+7 −1
Original line number Diff line number Diff line
@@ -1979,9 +1979,15 @@ static void usb_reset_338x(struct net2280 *dev) 
	/* clear old dma and irq state */

	for (tmp = 0; tmp < 4; tmp++) {

		struct net2280_ep *ep = &dev->ep[tmp + 1];

		struct net2280_dma_regs __iomem *dma;



		if (ep->dma)

		if (ep->dma) {

			abort_dma(ep);

		} else {

			dma = &dev->dma[tmp];

			writel(BIT(DMA_ABORT), &dma->dmastat);

			writel(0, &dma->dmactl);

		}

	}



	writel(~0, &dev->regs->irqstat0), writel(~0, &dev->regs->irqstat1);