Sequence number can be out of sync if endpoint is disabled after some
data transfers and enabled again. Reset it to stay in sync with host.
Tested-by: Ricardo Ribalda Delgado <ricardo.ribalda@xxxxxxxxx>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@xxxxxxxxx>
---
drivers/usb/gadget/udc/net2280.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/usb/gadget/udc/net2280.c b/drivers/usb/gadget/udc/net2280.c
index 62bc157..a91da36 100644
--- a/drivers/usb/gadget/udc/net2280.c
+++ b/drivers/usb/gadget/udc/net2280.c
@@ -123,6 +123,8 @@ static char *type_string(u8 bmAttributes)
#define valid_bit cpu_to_le32(BIT(VALID_BIT))
#define dma_done_ie cpu_to_le32(BIT(DMA_DONE_INTERRUPT_ENABLE))
+static void ep_clear_seqnum(struct net2280_ep *ep);
+
/*-------------------------------------------------------------------------*/
static inline void enable_pciirqenb(struct net2280_ep *ep)
{
@@ -256,6 +258,8 @@ net2280_enable(struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
BIT(CLEAR_NAK_OUT_PACKETS_MODE), &ep->regs->ep_rsp);
}
+ if (dev->quirks & PLX_SUPERSPEED)
+ ep_clear_seqnum(ep);
writel(tmp, &ep->cfg->ep_cfg);
/* enable irqs */
--
2.3.3
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