Commit 1cb5e9ee authored Apr 02, 2013 by Yuan-Hsin Chen Committed by Felipe Balbi Apr 02, 2013

usb: gadget: fusb300_udc: bug fix of not doing idma reset for each time



Enter IDMA_RESET only when the controller has been reset or
the device has been plugged in to or out from a host. In
IDMA_RESET, we should disable the corresponding PRD interrupt.
Also there is a redundant space eliminated.

fusb300_udc driver is tested on FARADAY platform a369 with
FUSB300 FPGA v1.8

Signed-off-by: Yuan-Hsin Chen <yhchen@faraday-tech.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

parent 9770a16f

drivers/usb/gadget/fusb300_udc.c

+6 −3

Original line number	Diff line number	Diff line
		@@ -930,9 +930,12 @@ static void fusb300_wait_idma_finished(struct fusb300_ep *ep)

		fusb300_clear_int(ep->fusb300, FUSB300_OFFSET_IGR0,
		FUSB300_IGR0_EPn_PRD_INT(ep->epnum));
		return;

		IDMA_RESET:
		fusb300_clear_int(ep->fusb300, FUSB300_OFFSET_IGER0,
		FUSB300_IGER0_EEPn_PRD_INT(ep->epnum));
		reg = ioread32(ep->fusb300->reg + FUSB300_OFFSET_IGER0);
		reg &= ~FUSB300_IGER0_EEPn_PRD_INT(ep->epnum);
		iowrite32(reg, ep->fusb300->reg + FUSB300_OFFSET_IGER0);
		}

		static void fusb300_set_idma(struct fusb300_ep *ep,

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