From: mikeb <mikeb@openbsd.org>
Date: Wed, 27 May 2015 11:13:34 +0000 (+0000)
Subject: Improve the controller state check in xhci_reset
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=9e16ec652a8805fa9f2f1fc730b19cce43f9d918;p=openbsd

Improve the controller state check in xhci_reset

From FreeBSD, OK mpi
---

diff --git a/sys/dev/usb/xhci.c b/sys/dev/usb/xhci.c
index 69a61595ec3..436bf53e34a 100644
--- a/sys/dev/usb/xhci.c
+++ b/sys/dev/usb/xhci.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: xhci.c,v 1.59 2015/04/19 11:12:58 mpi Exp $ */
+/* $OpenBSD: xhci.c,v 1.60 2015/05/27 11:13:34 mikeb Exp $ */
 
 /*
  * Copyright (c) 2014-2015 Martin Pieuchot
@@ -560,7 +560,8 @@ xhci_reset(struct xhci_softc *sc)
 	XOWRITE4(sc, XHCI_USBCMD, XHCI_CMD_HCRST);
 	for (i = 0; i < 100; i++) {
 		usb_delay_ms(&sc->sc_bus, 1);
-		hcr = XOREAD4(sc, XHCI_USBCMD) & XHCI_STS_CNR;
+		hcr = (XOREAD4(sc, XHCI_USBCMD) & XHCI_CMD_HCRST) |
+		    (XOREAD4(sc, XHCI_USBSTS) & XHCI_STS_CNR);
 		if (!hcr)
 			break;
 	}