[PATCH] USB: Add LPM quirk for Surface Dock GigE adapter

* [PATCH] USB: Add LPM quirk for Surface Dock GigE adapter
@ 2019-05-16 15:08 Maximilian Luz
  0 siblings, 0 replies; only message in thread
From: Maximilian Luz @ 2019-05-16 15:08 UTC (permalink / raw)
  Cc: Maximilian Luz, Greg Kroah-Hartman, Kai-Heng Feng, Alan Stern,
	Harry Pan, Maxence Duprès, Michael Niewöhner,
	Nico Sneck, Emmanuel Pescosta, Jack Stocker, linux-usb,
	linux-kernel

Without USB_QUIRK_NO_LPM ethernet will not work and rtl8152 will
complain with

    r8152 <device...>: Stop submitting intr, status -71

Adding the quirk resolves this. As the dock is externally powered, this
should not have any drawbacks.

Signed-off-by: Maximilian Luz <luzmaximilian@gmail.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 8bc35d53408b..6082b008969b 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -209,6 +209,9 @@ static const struct usb_device_id usb_quirk_list[] = {
 	/* Microsoft LifeCam-VX700 v2.0 */
 	{ USB_DEVICE(0x045e, 0x0770), .driver_info = USB_QUIRK_RESET_RESUME },
 
+	/* Microsoft Surface Dock Ethernet (RTL8153 GigE) */
+	{ USB_DEVICE(0x045e, 0x07c6), .driver_info = USB_QUIRK_NO_LPM },
+
 	/* Cherry Stream G230 2.0 (G85-231) and 3.0 (G85-232) */
 	{ USB_DEVICE(0x046a, 0x0023), .driver_info = USB_QUIRK_RESET_RESUME },
 
-- 
2.21.0


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