[PATCH 2/6] usb: gadget: mv_udc: disable HW zlt for ep0

[Neil Zhang]

Hardware zlt will try to send the zero length packet automatically
when the data transferd is multiple times of max packet, this will
cause issues on Windows.
So let's disable HW zlt by default.

Signed-off-by: Neil Zhang <zhangwm@xxxxxxxxxxx>
---
 drivers/usb/gadget/mv_udc_core.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/gadget/mv_udc_core.c b/drivers/usb/gadget/mv_udc_core.c
index ebc0dfd..657ac5c 100644
--- a/drivers/usb/gadget/mv_udc_core.c
+++ b/drivers/usb/gadget/mv_udc_core.c
@@ -89,7 +89,7 @@ static void ep0_reset(struct mv_udc *udc)
 		/* configure ep0 endpoint capabilities in dQH */
 		ep->dqh->max_packet_length =
 			(EP0_MAX_PKT_SIZE << EP_QUEUE_HEAD_MAX_PKT_LEN_POS)
-			| EP_QUEUE_HEAD_IOS;
+			| EP_QUEUE_HEAD_IOS | EP_QUEUE_HEAD_ZLT_SEL;
 
 		ep->dqh->next_dtd_ptr = EP_QUEUE_HEAD_NEXT_TERMINATE;
 
-- 
1.7.9.5

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