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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	stable@vger.kernel.org, Lu Baolu <baolu.lu@linux.intel.com>,
	Alan Stern <stern@rowland.harvard.edu>
Subject: [PATCH 3.10 14/16] USB: Add device quirk for ASUS T100 Base Station keyboard
Date: Mon, 13 Oct 2014 04:24:11 +0200	[thread overview]
Message-ID: <20141013022342.009374597@linuxfoundation.org> (raw)
In-Reply-To: <20141013022341.386913672@linuxfoundation.org>

3.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Lu Baolu <baolu.lu@linux.intel.com>

commit ddbe1fca0bcb87ca8c199ea873a456ca8a948567 upstream.

This full-speed USB device generates spurious remote wakeup event
as soon as USB_DEVICE_REMOTE_WAKEUP feature is set. As the result,
Linux can't enter system suspend and S0ix power saving modes once
this keyboard is used.

This patch tries to introduce USB_QUIRK_IGNORE_REMOTE_WAKEUP quirk.
With this quirk set, wakeup capability will be ignored during
device configure.

This patch could be back-ported to kernels as old as 2.6.39.

Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/usb/core/hub.c     |    6 ++++--
 drivers/usb/core/quirks.c  |    4 ++++
 include/linux/usb/quirks.h |    3 +++
 3 files changed, 11 insertions(+), 2 deletions(-)

--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -1951,8 +1951,10 @@ void usb_set_device_state(struct usb_dev
 					|| new_state == USB_STATE_SUSPENDED)
 				;	/* No change to wakeup settings */
 			else if (new_state == USB_STATE_CONFIGURED)
-				wakeup = udev->actconfig->desc.bmAttributes
-					 & USB_CONFIG_ATT_WAKEUP;
+				wakeup = (udev->quirks &
+					USB_QUIRK_IGNORE_REMOTE_WAKEUP) ? 0 :
+					udev->actconfig->desc.bmAttributes &
+					USB_CONFIG_ATT_WAKEUP;
 			else
 				wakeup = 0;
 		}
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -162,6 +162,10 @@ static const struct usb_device_id usb_in
 	{ USB_VENDOR_AND_INTERFACE_INFO(0x046d, USB_CLASS_VIDEO, 1, 0),
 	  .driver_info = USB_QUIRK_RESET_RESUME },
 
+	/* ASUS Base Station(T100) */
+	{ USB_DEVICE(0x0b05, 0x17e0), .driver_info =
+			USB_QUIRK_IGNORE_REMOTE_WAKEUP },
+
 	{ }  /* terminating entry must be last */
 };
 
--- a/include/linux/usb/quirks.h
+++ b/include/linux/usb/quirks.h
@@ -30,4 +30,7 @@
    descriptor */
 #define USB_QUIRK_DELAY_INIT		0x00000040
 
+/* device generates spurious wakeup, ignore remote wakeup capability */
+#define USB_QUIRK_IGNORE_REMOTE_WAKEUP	0x00000200
+
 #endif /* __LINUX_USB_QUIRKS_H */



  parent reply	other threads:[~2014-10-13  2:24 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-10-13  2:23 [PATCH 3.10 00/16] 3.10.58-stable review Greg Kroah-Hartman
2014-10-13  2:23 ` [PATCH 3.10 01/16] myri10ge: check for DMA mapping errors Greg Kroah-Hartman
2014-10-13  2:23 ` [PATCH 3.10 02/16] sit: Fix ipip6_tunnel_lookup device matching criteria Greg Kroah-Hartman
2014-10-13  2:24 ` [PATCH 3.10 03/16] tcp: fix tcp_release_cb() to dispatch via address family for mtu_reduced() Greg Kroah-Hartman
2014-10-13  2:24 ` [PATCH 3.10 04/16] packet: handle too big packets for PACKET_V3 Greg Kroah-Hartman
2014-10-13  2:24 ` [PATCH 3.10 05/16] openvswitch: fix panic with multiple vlan headers Greg Kroah-Hartman
2014-10-13  2:24 ` [PATCH 3.10 06/16] l2tp: fix race while getting PMTU on PPP pseudo-wire Greg Kroah-Hartman
2014-10-13  2:24 ` [PATCH 3.10 07/16] tg3: Work around HW/FW limitations with vlan encapsulated frames Greg Kroah-Hartman
2014-10-13  2:24 ` [PATCH 3.10 08/16] tg3: Allow for recieve of full-size 8021AD frames Greg Kroah-Hartman
2014-10-13  2:24 ` [PATCH 3.10 09/16] hyperv: Fix a bug in netvsc_start_xmit() Greg Kroah-Hartman
2014-10-13  2:24 ` [PATCH 3.10 10/16] ip6_gre: fix flowi6_proto value in xmit path Greg Kroah-Hartman
2014-10-13  2:24 ` [PATCH 3.10 11/16] sctp: handle association restarts when the socket is closed Greg Kroah-Hartman
2014-10-13  2:24 ` [PATCH 3.10 12/16] tcp: fixing TLPs FIN recovery Greg Kroah-Hartman
2014-10-13  2:24 ` [PATCH 3.10 13/16] ipv6: reallocate addrconf router for ipv6 address when lo device up Greg Kroah-Hartman
2014-10-13  2:24 ` Greg Kroah-Hartman [this message]
2014-10-13  2:24 ` [PATCH 3.10 15/16] USB: serial: cp210x: added Ketra N1 wireless interface support Greg Kroah-Hartman
2014-10-13  2:24 ` [PATCH 3.10 16/16] USB: cp210x: add support for Seluxit USB dongle Greg Kroah-Hartman
2014-10-13 15:17 ` [PATCH 3.10 00/16] 3.10.58-stable review Guenter Roeck
2014-10-13 20:31 ` Shuah Khan

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