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.
Signed-off-by: Mian Yousaf Kaukab <[email protected]> --- 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 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
