Merge tag 'usb-ci-v4.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb into usb-next

Peter writes:

USB: chipidea updates for v4.3-rc1

The main changes are adding several system interfaces for
tuning performance, and each vendors can adjust them according
to their design configurations.

Others are tiny improvements, like more well siTD supports,
USB_DEVICE_A_HNP_SUPPORT supports, etc.

drivers/usb/chipidea/udc.c

@@ -445,7 +445,7 @@ static int _hardware_enqueue(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq)
 		rest -= count;
 	}
 
-	if (hwreq->req.zero && hwreq->req.length
+	if (hwreq->req.zero && hwreq->req.length && hwep->dir == TX
 	    && (hwreq->req.length % hwep->ep.maxpacket == 0))
 		add_td_to_list(hwep, hwreq, 0);
 
@@ -1090,6 +1090,13 @@ __acquires(ci->lock)
 				if (ci_otg_is_fsm_mode(ci))
 					err = otg_a_alt_hnp_support(ci);
 				break;
+			case USB_DEVICE_A_HNP_SUPPORT:
+				if (ci_otg_is_fsm_mode(ci)) {
+					ci->gadget.a_hnp_support = 1;
+					err = isr_setup_status_phase(
+							ci);
+				}
+				break;
 			default:
 				goto delegate;
 			}