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usb: dwc2: Add core state checking

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Added core state checking in dwc2_hsotg_ep_queue() function
to make sure that application will submit requests only in L0 state.

Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This commit is contained in:
Grigor Tovmasyan 2018-01-24 17:44:25 +04:00 • committed by Felipe Balbi
parent c655557c12
commit 88b02f2cb1
1 changed files with 2 additions and 2 deletions
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4
drivers/usb/dwc2/gadget.c
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@ -1297,8 +1297,8 @@ static int dwc2_hsotg_ep_queue(struct usb_ep *ep, struct usb_request *req,
req->zero, req->short_not_ok); req->zero, req->short_not_ok);
/* Prevent new request submission when controller is suspended */ /* Prevent new request submission when controller is suspended */
if (hs->lx_state == DWC2_L2) { if (hs->lx_state != DWC2_L0) {
dev_dbg(hs->dev, "%s: don't submit request while suspended\n", dev_dbg(hs->dev, "%s: submit request only in active state\n",
__func__); __func__);
return -EAGAIN; return -EAGAIN;
} }