From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:53387 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752269AbcD1AIU (ORCPT ); Wed, 27 Apr 2016 20:08:20 -0400 Subject: Patch "xhci: resume USB 3 roothub first" has been added to the 4.4-stable tree To: mathias.nyman@linux.intel.com, gregkh@linuxfoundation.org, main.haarp@gmail.com Cc: , From: Date: Wed, 27 Apr 2016 17:06:30 -0700 Message-ID: <146180199011496@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled xhci: resume USB 3 roothub first to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: xhci-resume-usb-3-roothub-first.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 671ffdff5b13314b1fc65d62cf7604b873fb5dc4 Mon Sep 17 00:00:00 2001 From: Mathias Nyman Date: Fri, 8 Apr 2016 16:25:06 +0300 Subject: xhci: resume USB 3 roothub first From: Mathias Nyman commit 671ffdff5b13314b1fc65d62cf7604b873fb5dc4 upstream. Give USB3 devices a better chance to enumerate at USB 3 speeds if they are connected to a suspended host. Solves an issue with NEC uPD720200 host hanging when partially enumerating a USB3 device as USB2 after host controller runtime resume. Tested-by: Mike Murdoch Signed-off-by: Mathias Nyman Signed-off-by: Greg Kroah-Hartman Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/xhci.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -1103,8 +1103,8 @@ int xhci_resume(struct xhci_hcd *xhci, b /* Resume root hubs only when have pending events. */ status = readl(&xhci->op_regs->status); if (status & STS_EINT) { - usb_hcd_resume_root_hub(hcd); usb_hcd_resume_root_hub(xhci->shared_hcd); + usb_hcd_resume_root_hub(hcd); } } @@ -1119,10 +1119,10 @@ int xhci_resume(struct xhci_hcd *xhci, b /* Re-enable port polling. */ xhci_dbg(xhci, "%s: starting port polling.\n", __func__); - set_bit(HCD_FLAG_POLL_RH, &hcd->flags); - usb_hcd_poll_rh_status(hcd); set_bit(HCD_FLAG_POLL_RH, &xhci->shared_hcd->flags); usb_hcd_poll_rh_status(xhci->shared_hcd); + set_bit(HCD_FLAG_POLL_RH, &hcd->flags); + usb_hcd_poll_rh_status(hcd); return retval; } Patches currently in stable-queue which might be from mathias.nyman@linux.intel.com are queue-4.4/usb-xhci-applying-xhci_pme_stuck_quirk-to-intel-bxt-b0-host.patch queue-4.4/xhci-resume-usb-3-roothub-first.patch queue-4.4/xhci-fix-10-second-timeout-on-removal-of-pci-hotpluggable-xhci-controllers.patch queue-4.4/usb-xhci-fix-wild-pointers-in-xhci_mem_cleanup.patch