From: Vernon Sauder <vsauder@xxxxxxxxxx>
Signed-off-by: Vernon Sauder <vsauder@xxxxxxxxxx>
---
drivers/usb/gadget/pxa27x_udc.c | 11 ++++++++---
1 files changed, 8 insertions(+), 3 deletions(-)
diff --git a/drivers/usb/gadget/pxa27x_udc.c b/drivers/usb/gadget/pxa27x_udc.c
index aa80abc..b177eae 100644
--- a/drivers/usb/gadget/pxa27x_udc.c
+++ b/drivers/usb/gadget/pxa27x_udc.c
@@ -1190,9 +1190,14 @@ static int pxa_ep_queue(struct usb_ep *_ep, struct usb_request *_req,
ep0_end_in_req(ep, req);
break;
case OUT_DATA_STAGE:
- if ((length == 0) || !epout_has_pkt(ep))
- if (read_ep0_fifo(ep, req))
- ep0_end_out_req(ep, req);
+ if (length == 0 || read_ep0_fifo(ep, req)) {
+ if (length == 0) {
+ /* we need to make up a status packet */
+ udc_ep_writeb(ep, UDCDR, 0);
+ udc_ep_writel(ep, UDCCSR, UDCCSR0_IPR);
+ }
+ ep0_end_out_req(ep, req);
+ }
break;
default:
ep_err(ep, "odd state %s to send me a request\n",
--
1.6.1
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