diff options
| -rw-r--r-- | drivers/usb/musb/musb_gadget.c | 2 | ||||
| -rw-r--r-- | drivers/usb/musb/musb_gadget.h | 2 | ||||
| -rw-r--r-- | drivers/usb/musb/musb_gadget_ep0.c | 9 |
3 files changed, 12 insertions, 1 deletions
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c index cacae96468b9..d065e23f123e 100644 --- a/drivers/usb/musb/musb_gadget.c +++ b/drivers/usb/musb/musb_gadget.c @@ -1084,7 +1084,7 @@ struct free_record { /* * Context: controller locked, IRQs blocked. */ -static void musb_ep_restart(struct musb *musb, struct musb_request *req) +void musb_ep_restart(struct musb *musb, struct musb_request *req) { DBG(3, "<== %s request %p len %u on hw_ep%d\n", req->tx ? "TX/IN" : "RX/OUT", diff --git a/drivers/usb/musb/musb_gadget.h b/drivers/usb/musb/musb_gadget.h index c8b140325d82..572b1da7f2dc 100644 --- a/drivers/usb/musb/musb_gadget.h +++ b/drivers/usb/musb/musb_gadget.h @@ -105,4 +105,6 @@ extern void musb_gadget_cleanup(struct musb *); extern void musb_g_giveback(struct musb_ep *, struct usb_request *, int); +extern void musb_ep_restart(struct musb *, struct musb_request *); + #endif /* __MUSB_GADGET_H */ diff --git a/drivers/usb/musb/musb_gadget_ep0.c b/drivers/usb/musb/musb_gadget_ep0.c index 59bef8f3a358..6dd03f4c5f49 100644 --- a/drivers/usb/musb/musb_gadget_ep0.c +++ b/drivers/usb/musb/musb_gadget_ep0.c @@ -261,6 +261,7 @@ __acquires(musb->lock) ctrlrequest->wIndex & 0x0f; struct musb_ep *musb_ep; struct musb_hw_ep *ep; + struct musb_request *request; void __iomem *regs; int is_in; u16 csr; @@ -302,6 +303,14 @@ __acquires(musb->lock) musb_writew(regs, MUSB_RXCSR, csr); } + /* Maybe start the first request in the queue */ + request = to_musb_request( + next_request(musb_ep)); + if (!musb_ep->busy && request) { + DBG(3, "restarting the request\n"); + musb_ep_restart(musb, request); + } + /* select ep0 again */ musb_ep_select(mbase, 0); } break; |