From: <gregkh@linuxfoundation.org>
To: stern@rowland.harvard.edu, bhelgaas@google.com,
gregkh@linuxfoundation.org
Cc: <stable@vger.kernel.org>, <stable-commits@vger.kernel.org>
Subject: Patch "USB: UHCI: report non-PME wakeup signalling for Intel hardware" has been added to the 4.4-stable tree
Date: Tue, 03 Jan 2017 20:56:14 +0100 [thread overview]
Message-ID: <14834733741192@kroah.com> (raw)
This is a note to let you know that I've just added the patch titled
USB: UHCI: report non-PME wakeup signalling for Intel hardware
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:
usb-uhci-report-non-pme-wakeup-signalling-for-intel-hardware.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 <stable@vger.kernel.org> know about it.
>From ccdb6be9ec6580ef69f68949ebe26e0fb58a6fb0 Mon Sep 17 00:00:00 2001
From: Alan Stern <stern@rowland.harvard.edu>
Date: Fri, 21 Oct 2016 16:49:07 -0400
Subject: USB: UHCI: report non-PME wakeup signalling for Intel hardware
From: Alan Stern <stern@rowland.harvard.edu>
commit ccdb6be9ec6580ef69f68949ebe26e0fb58a6fb0 upstream.
The UHCI controllers in Intel chipsets rely on a platform-specific non-PME
mechanism for wakeup signalling. They can generate wakeup signals even
though they don't support PME.
We need to let the USB core know this so that it will enable runtime
suspend for UHCI controllers.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/usb/host/uhci-pci.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/drivers/usb/host/uhci-pci.c
+++ b/drivers/usb/host/uhci-pci.c
@@ -129,6 +129,10 @@ static int uhci_pci_init(struct usb_hcd
if (to_pci_dev(uhci_dev(uhci))->vendor == PCI_VENDOR_ID_HP)
uhci->wait_for_hp = 1;
+ /* Intel controllers use non-PME wakeup signalling */
+ if (to_pci_dev(uhci_dev(uhci))->vendor == PCI_VENDOR_ID_INTEL)
+ device_set_run_wake(uhci_dev(uhci), 1);
+
/* Set up pointers to PCI-specific functions */
uhci->reset_hc = uhci_pci_reset_hc;
uhci->check_and_reset_hc = uhci_pci_check_and_reset_hc;
Patches currently in stable-queue which might be from stern@rowland.harvard.edu are
queue-4.4/usb-uhci-report-non-pme-wakeup-signalling-for-intel-hardware.patch
queue-4.4/usb-hub-fix-auto-remount-of-safely-removed-or-ejected-usb-3-devices.patch
reply other threads:[~2017-01-03 19:56 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=14834733741192@kroah.com \
--to=gregkh@linuxfoundation.org \
--cc=bhelgaas@google.com \
--cc=stable-commits@vger.kernel.org \
--cc=stable@vger.kernel.org \
--cc=stern@rowland.harvard.edu \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).