Patch "USB: quirks: enable device-qualifier quirk for Elan Touchscreen" has been added to the 3.14-stable tree

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This is a note to let you know that I've just added the patch titled

    USB: quirks: enable device-qualifier quirk for Elan Touchscreen

to the 3.14-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-quirks-enable-device-qualifier-quirk-for-elan-touchscreen.patch
and it can be found in the queue-3.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.


>From c68929f75dfcb6354918862b91b5778585de1fa5 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@xxxxxxxxxx>
Date: Mon, 25 Aug 2014 17:51:27 +0200
Subject: USB: quirks: enable device-qualifier quirk for Elan Touchscreen

From: Johan Hovold <johan@xxxxxxxxxx>

commit c68929f75dfcb6354918862b91b5778585de1fa5 upstream.

Enable device-qualifier quirk for Elan Touchscreen, which often fails to
handle requests for the device_descriptor.

Note that the device sometimes do respond properly with a Request Error
(three times as USB core retries), but usually fails to respond at all.
When this happens any further descriptor requests also fails, for
example:

[ 1528.688934] usb 2-7: new full-speed USB device number 4 using xhci_hcd
[ 1530.945588] usb 2-7: unable to read config index 0 descriptor/start: -71
[ 1530.945592] usb 2-7: can't read configurations, error -71

This has been observed repeating for over a minute before eventual
successful enumeration.

Reported-by: Drew Von Spreecken <drewvs@xxxxxxxxx>
Reported-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 drivers/usb/core/quirks.c |    4 ++++
 1 file changed, 4 insertions(+)

--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -93,6 +93,10 @@ static const struct usb_device_id usb_qu
 	{ USB_DEVICE(0x04e8, 0x6601), .driver_info =
 			USB_QUIRK_CONFIG_INTF_STRINGS },
 
+	/* Elan Touchscreen */
+	{ USB_DEVICE(0x04f3, 0x0089), .driver_info =
+			USB_QUIRK_DEVICE_QUALIFIER },
+
 	/* Roland SC-8820 */
 	{ USB_DEVICE(0x0582, 0x0007), .driver_info = USB_QUIRK_RESET_RESUME },
 


Patches currently in stable-queue which might be from johan@xxxxxxxxxx are

queue-3.14/usb-option-add-haier-ce81b-cdma-modem.patch
queue-3.14/usb-cdc-acm-add-device-id-for-gw-instek-afg-2225.patch
queue-3.14/usb-option-add-support-for-telit-le910.patch
queue-3.14/usb-core-add-device-qualifier-quirk.patch
queue-3.14/usb-quirks-enable-device-qualifier-quirk-for-elan-touchscreen.patch
queue-3.14/usb-serial-ftdi_sio-add-awinda-station-and-dongle-products.patch
queue-3.14/usb-serial-cp210x-add-silicon-labs-358x-vid-and-pid.patch
queue-3.14/usb-cdc-acm-only-raise-dtr-on-transitions-from-b0.patch
queue-3.14/usb-serial-ftdi_sio-add-bricked-ftdi-device-pid.patch
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