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* [PATCH v3] USB: Add LPM quirk for Lenovo ThinkPad USB-C Dock Gen2 Ethernet
@ 2021-04-12 13:54 Kai-Heng Feng
  0 siblings, 0 replies; only message in thread
From: Kai-Heng Feng @ 2021-04-12 13:54 UTC (permalink / raw)
  To: gregkh
  Cc: Kai-Heng Feng, Alan Stern, penghao, Oliver Neukum, Johan Hovold,
	Kars Mulder, Tomasz Meresiński, open list:USB SUBSYSTEM,
	open list

This is another branded 8153 device that doesn't work well with LPM
enabled:
[ 400.597506] r8152 5-1.1:1.0 enx482ae3a2a6f0: Tx status -71

So disable LPM to resolve the issue.

BugLink: https://bugs.launchpad.net/bugs/1922651
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
---
v3:
 - _Really_ put the quirk in the right order.

v2:
 - Put the quirk in the right order.

 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 76ac5d6555ae..6114cf83bb44 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -438,6 +438,9 @@ static const struct usb_device_id usb_quirk_list[] = {
 	{ USB_DEVICE(0x17ef, 0xa012), .driver_info =
 			USB_QUIRK_DISCONNECT_SUSPEND },
 
+	/* Lenovo ThinkPad USB-C Dock Gen2 Ethernet (RTL8153 GigE) */
+	{ USB_DEVICE(0x17ef, 0xa387), .driver_info = USB_QUIRK_NO_LPM },
+
 	/* BUILDWIN Photo Frame */
 	{ USB_DEVICE(0x1908, 0x1315), .driver_info =
 			USB_QUIRK_HONOR_BNUMINTERFACES },
-- 
2.30.2


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