[3.16.y-ckt stable] Patch "USB: add reset resume quirk for usb3503" has been added to staging queue

[Luis Henriques]

This is a note to let you know that I have just added a patch titled

    USB: add reset resume quirk for usb3503

to the linux-3.16.y-queue branch of the 3.16.y-ckt extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.16.y-queue

This patch is scheduled to be released in version 3.16.7-ckt3.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.16.y-ckt tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Luis

------

>From 604882065f299f7ead8b6bd6ba328e856e7c4668 Mon Sep 17 00:00:00 2001
From: Joonyoung Shim <jy0922.shim at samsung.com>
Date: Thu, 10 Jul 2014 14:22:35 +0900
Subject: USB: add reset resume quirk for usb3503

commit 526a4045c60fbaede88ec95a69a73059dff02160 upstream.

The usb device will autoresume from choose_wakeup() if it is
autosuspended with the wrong wakeup setting, but below errors occur
because usb3503 misc driver will switch to standby mode when suspended.

As add USB_QUIRK_RESET_RESUME, it can stop setting wrong wakeup from
autosuspend_check().

[    7.734717] usb 1-3: reset high-speed USB device number 3 using exynos-ehci
[    7.854658] usb 1-3: device descriptor read/64, error -71
[    8.079657] usb 1-3: device descriptor read/64, error -71
[    8.294664] usb 1-3: reset high-speed USB device number 3 using exynos-ehci
[    8.414658] usb 1-3: device descriptor read/64, error -71
[    8.639657] usb 1-3: device descriptor read/64, error -71
[    8.854667] usb 1-3: reset high-speed USB device number 3 using exynos-ehci
[    9.264598] usb 1-3: device not accepting address 3, error -71
[    9.374655] usb 1-3: reset high-speed USB device number 3 using exynos-ehci
[    9.784601] usb 1-3: device not accepting address 3, error -71
[    9.784838] usb usb1-port3: device 1-3 not suspended yet

Signed-off-by: Joonyoung Shim <jy0922.shim at samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
---
 drivers/usb/core/quirks.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index b195fdb1effc..7f4a4412b2fc 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -165,6 +165,9 @@ static const struct usb_device_id usb_quirk_list[] = {
 	/* INTEL VALUE SSD */
 	{ USB_DEVICE(0x8086, 0xf1a5), .driver_info = USB_QUIRK_RESET_RESUME },

+	/* USB3503 */
+	{ USB_DEVICE(0x0424, 0x3503), .driver_info = USB_QUIRK_RESET_RESUME },
+
 	{ }  /* terminating entry must be last */
 };

--
2.1.3