diff options
| author | Neil Zhang <zhangwm@marvell.com> | 2011-10-12 12:49:29 +0400 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2011-10-13 21:42:01 +0400 |
| commit | fbebe1f070a73c108415bb9ee0483570650e2712 (patch) | |
| tree | a08ef325655fdd9e969800db4e4449b223c5634a /drivers/usb | |
| parent | 43ad9f3faea18d7b3e1183753d3e6372a7037edf (diff) | |
| download | linux-fbebe1f070a73c108415bb9ee0483570650e2712.tar.xz | |
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>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/gadget/mv_udc_core.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/gadget/mv_udc_core.c b/drivers/usb/gadget/mv_udc_core.c index 80168d11841d..8dab8c4d10bd 100644 --- a/drivers/usb/gadget/mv_udc_core.c +++ b/drivers/usb/gadget/mv_udc_core.c @@ -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 |