This is a note to let you know that I've just added the patch titled
Revert "xhci: clear root port wake on bits if controller isn't wake-up capable"
to the 3.17-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:
revert-xhci-clear-root-port-wake-on-bits-if-controller-isn-t-wake-up-capable.patch
and it can be found in the queue-3.17 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 9b41ebd3cf0f68d8cad779d3eeba336f78262e43 Mon Sep 17 00:00:00 2001
From: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>
Date: Tue, 18 Nov 2014 11:27:13 +0200
Subject: Revert "xhci: clear root port wake on bits if controller isn't wake-up capable"
From: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>
commit 9b41ebd3cf0f68d8cad779d3eeba336f78262e43 upstream.
commit ff8cbf250b44 ("xhci: clear root port wake on bits if controller isn't")
can cause device detection error if runtime PM is enabled, and S3 wake
is disabled. Revert it.
https://bugzilla.kernel.org/show_bug.cgi?id=85701
This commit got into stable and should be reverted from there as well.
Signed-off-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>
Reported-by: Dmitry Nezhevenko <dion@xxxxxxxxx>
[Mathias Nyman: reword commit message]
Signed-off-by: Mathias Nyman <mathias.nyman@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/host/xhci-hub.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -22,7 +22,6 @@
#include <linux/slab.h>
-#include <linux/device.h>
#include <asm/unaligned.h>
#include "xhci.h"
@@ -1142,9 +1141,7 @@ int xhci_bus_suspend(struct usb_hcd *hcd
* including the USB 3.0 roothub, but only if CONFIG_PM_RUNTIME
* is enabled, so also enable remote wake here.
*/
- if (hcd->self.root_hub->do_remote_wakeup
- && device_may_wakeup(hcd->self.controller)) {
-
+ if (hcd->self.root_hub->do_remote_wakeup) {
if (t1 & PORT_CONNECT) {
t2 |= PORT_WKOC_E | PORT_WKDISC_E;
t2 &= ~PORT_WKCONN_E;
Patches currently in stable-queue which might be from baolu.lu@xxxxxxxxxxxxxxx are
queue-3.17/revert-xhci-clear-root-port-wake-on-bits-if-controller-isn-t-wake-up-capable.patch
queue-3.17/usb-xhci-rework-root-port-wake-bits-if-controller-isn-t-allowed-to-wakeup.patch
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