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Date:   Wed, 11 May 2022 15:30:15 -0400
From:   David Ober <dober6023@...il.com>
To:     linux-usb@...r.kernel.org, netdev@...r.kernel.org,
        davem@...emloft.net, hayeswang@...ltek.com, aaron.ma@...onical.com
Cc:     markpearson@...ovo.com, dober@...ovo.com,
        David Ober <dober6023@...il.com>
Subject: [PATCH v3] net: usb: r8152: Add in new Devices that are supported for Mac-Passthru

Lenovo Thunderbolt 4 Dock, and other Lenovo USB Docks are using the
original Realtek USB ethernet Vendor and Product IDs
If the Network device is Realtek verify that it is on a Lenovo USB hub
before enabling the passthru feature

This also adds in the device IDs for the Lenovo USB Dongle and one other
USB-C dock

Signed-off-by: David Ober <dober6023@...il.com>
---
 drivers/net/usb/r8152.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index c2da3438387c..482f54625411 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -771,6 +771,8 @@ enum rtl8152_flags {
 };
 
 #define DEVICE_ID_THINKPAD_THUNDERBOLT3_DOCK_GEN2	0x3082
+#define DEVICE_ID_THINKPAD_USB_C_DOCK_GEN3		0x3062
+#define DEVICE_ID_THINKPAD_USB_C_DONGLE			0x720c
 #define DEVICE_ID_THINKPAD_USB_C_DOCK_GEN2		0xa387
 
 struct tally_counter {
@@ -9644,10 +9646,18 @@ static int rtl8152_probe(struct usb_interface *intf,
 
 	if (le16_to_cpu(udev->descriptor.idVendor) == VENDOR_ID_LENOVO) {
 		switch (le16_to_cpu(udev->descriptor.idProduct)) {
+		case DEVICE_ID_THINKPAD_USB_C_DOCK_GEN3:
+		case DEVICE_ID_THINKPAD_USB_C_DONGLE:
 		case DEVICE_ID_THINKPAD_THUNDERBOLT3_DOCK_GEN2:
 		case DEVICE_ID_THINKPAD_USB_C_DOCK_GEN2:
 			tp->lenovo_macpassthru = 1;
 		}
+	} else if ((le16_to_cpu(udev->descriptor.idVendor) == VENDOR_ID_REALTEK) &&
+		   (le16_to_cpu(udev->parent->descriptor.idVendor) == VENDOR_ID_LENOVO)) {
+		switch (le16_to_cpu(udev->descriptor.idProduct)) {
+		case 0x8153:
+			tp->lenovo_macpassthru = 1;
+		}
 	}
 
 	if (le16_to_cpu(udev->descriptor.bcdDevice) == 0x3011 && udev->serial &&
-- 
2.30.2

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