The patch below does not apply to the 3.10-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@xxxxxxxxxxxxxxx>.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
>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: [PATCH] Revert "xhci: clear root port wake on bits if controller
isn't wake-up capable"
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.
Cc: stable <stable@xxxxxxxxxxxxxxx> # v3.2+
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>
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 696160d48ae8..388cfd83b6b6 100644
--- 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"
@@ -1149,9 +1148,7 @@ 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;
--
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