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usb: dwc3: gadget: return 0 if we try to Wakeup in superspeed

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Instead of returning -EINVAL when someone calls
__dwc3_gadget_wakeup() in speeds > highspeed, let's
return 0. There are no problems for the driver for
calling it in superspeed as we cleanly just return.

This avoids an annoying WARN_ONCE() always
triggering during superspeed enumeration with LPM
enabled.

Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This commit is contained in:
Felipe Balbi 2016-05-13 10:19:42 +03:00
parent b43bba96b9
commit 6b74289937
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/dwc3/gadget.c
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@ -1431,7 +1431,7 @@ static int __dwc3_gadget_wakeup(struct dwc3 *dwc)
if ((speed == DWC3_DSTS_SUPERSPEED) ||
(speed == DWC3_DSTS_SUPERSPEED_PLUS)) {
dwc3_trace(trace_dwc3_gadget, "no wakeup on SuperSpeed\n");
return -EINVAL;
return 0;
}
link_state = DWC3_DSTS_USBLNKST(reg);