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Commit e6ac4bb0 authored by Mian Yousaf Kaukab's avatar Mian Yousaf Kaukab Committed by Felipe Balbi
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usb: gadget: net2280: reset sequence number on ep enable 



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: default avatarRicardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: default avatarMian Yousaf Kaukab <yousaf.kaukab@intel.com>
Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent 25d40ee8

drivers/usb/gadget/udc/net2280.c

+4 −0
Original line number Diff line number Diff line
@@ -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 */