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patch "USB: NO_LPM quirk Lenovo USB-C to Ethernet Adapher(RTL8153-04)" added to usb-linus

PATCH [email protected] 1 participant 1 message Dec 15, 2021

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

USB: NO_LPM quirk Lenovo USB-C to Ethernet Adapher(RTL8153-04)

to my usb git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git
in the usb-linus branch.

The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)

The patch will hopefully also be merged in Linus's tree for the next -rc kernel release.

If you have any questions about this process, please let me know.

From 0ad3bd562bb91853b9f42bda145b5db6255aee90 Mon Sep 17 00:00:00 2001
From: Jimmy Wang <[email protected]>
Date: Tue, 14 Dec 2021 09:26:50 +0800
Subject: USB: NO_LPM quirk Lenovo USB-C to Ethernet Adapher(RTL8153-04)

This device doesn't work well with LPM, losing connectivity intermittently. Disable LPM to resolve the issue.

---
 drivers/usb/core/quirks.c | 3 +++
 1 file changed, 3 insertions(+)
drivers/usb/core/quirks.c +3 -0
index 019351c0b52c..d3c14b5ed4a1 100644
@@ -434,6 +434,9 @@ static const struct usb_device_id usb_quirk_list[] = {
 	{ USB_DEVICE(0x1532, 0x0116), .driver_info =
 			USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL },
 
+	/* Lenovo USB-C to Ethernet Adapter RTL8153-04 */
+	{ USB_DEVICE(0x17ef, 0x720c), .driver_info = USB_QUIRK_NO_LPM },
+
 	/* Lenovo Powered USB-C Travel Hub (4X90S92381, RTL8153 GigE) */
 	{ USB_DEVICE(0x17ef, 0x721e), .driver_info = USB_QUIRK_NO_LPM },
 
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