redonkable/alistair23-linux
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usb: dwc3: gadget: start transfer on XFER_COMPLETE

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if by the time we get to XFER_COMPLETE we have
pending requests to be processed, instead of waiting
for a following XFER_NOT_READY, let's start the request
right away and, maybe, save the time of a few NAKs
due to lack of started transfers.

Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Felipe Balbi 2015-09-21 14:32:00 -05:00
parent 9903b6bedd
commit 8a1a9c9e45
1 changed files with 8 additions and 0 deletions
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8
drivers/usb/dwc3/gadget.c
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@ -1967,6 +1967,14 @@ static void dwc3_endpoint_transfer_complete(struct dwc3 *dwc,
dwc->u1u2 = 0;
}
if (is_xfer_complete && !usb_endpoint_xfer_isoc(dep->endpoint.desc)) {
int ret;
ret = __dwc3_gadget_kick_transfer(dep, 0, 1);
if (!ret || ret == -EBUSY)
return;
}
}
static void dwc3_endpoint_interrupt(struct dwc3 *dwc,