linux-kernel - [PATCH 1/1][V2] usb: quirks: Add no-lpm quirk for Elan

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Date:	Wed,  6 Jul 2016 20:58:14 -0400
From:	Joseph Salisbury <joseph.salisbury@...onical.com>
To:	gregkh@...uxfoundation.org, hdegoede@...hat.com,
	adrienverge@...il.com, yaowen@...gle.com, vpalatin@...omium.org,
	stern@...land.harvard.edu
Cc:	linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
	stable@...r.kernel.org
Subject: [PATCH 1/1][V2] usb: quirks: Add no-lpm quirk for Elan 

BugLink: http://bugs.launchpad.net/bugs/1498667

As reported in BugLink, this device has an issue with Linux Power 
Management so adding a quirk.  This quirk was reccomended by Alan Stern:

http://lkml.iu.edu/hypermail/linux/kernel/1606.2/05590.html

Signed-off-by: Joseph Salisbury <joseph.salisbury@...onical.com>
Cc: stable <stable@...r.kernel.org>
---
 drivers/usb/core/quirks.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index 944a6dc..f028cc5 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -127,10 +127,13 @@ static const struct usb_device_id usb_quirk_list[] = {
 
 	{ USB_DEVICE(0x04f3, 0x016f), .driver_info =
 			USB_QUIRK_DEVICE_QUALIFIER },
+
+	{ USB_DEVICE(0x04f3, 0x0381), .driver_info =
+			USB_QUIRK_NO_LPM },
 
 	{ USB_DEVICE(0x04f3, 0x21b8), .driver_info =
 			USB_QUIRK_DEVICE_QUALIFIER },
-
+
 	/* Roland SC-8820 */
 	{ USB_DEVICE(0x0582, 0x0007), .driver_info = USB_QUIRK_RESET_RESUME },
 
-- 
2.7.4