Commit fbebe1f0 authored Oct 12, 2011 by Neil Zhang Committed by Felipe Balbi Oct 13, 2011

usb: gadget: mv_udc: init next dtd ptr for dqh when init ep0



Set next dtd ptr to EP_QUEUE_HEAD_NEXT_TERMINATE for dqh when init ep0.
It means the dQH is empty.

Signed-off-by: Neil Zhang <zhangwm@marvell.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

parent 43ad9f3f

drivers/usb/gadget/mv_udc_core.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -96,6 +96,8 @@ static void ep0_reset(struct mv_udc *udc)
		(EP0_MAX_PKT_SIZE << EP_QUEUE_HEAD_MAX_PKT_LEN_POS)
		\| EP_QUEUE_HEAD_IOS;

		ep->dqh->next_dtd_ptr = EP_QUEUE_HEAD_NEXT_TERMINATE;

		epctrlx = readl(&udc->op_regs->epctrlx[0]);
		if (i) { /* TX */
		epctrlx \|= EPCTRL_TX_ENABLE