r8152: add PID for the Lenovo OneLink+ Dock

commit 1bd3a383075c64d638e65d263c9267b08ee7733c upstream.

The Lenovo OneLink+ Dock contains an RTL8153 controller that behaves as
a broken CDC device by default. Add the custom Lenovo PID to the r8152
driver to support it properly.

Also, systems compatible with this dock provide a BIOS option to enable
MAC address passthrough (as per Lenovo document "ThinkPad Docking
Solutions 2017"). Add the custom PID to the MAC passthrough list too.

Tested on a ThinkPad 13 1st gen with the expected results:

passthrough disabled: Invalid header when reading pass-thru MAC addr
passthrough enabled:  Using pass-thru MAC addr XX:XX:XX:XX:XX:XX

Signed-off-by: Jean-Francois Le Fillatre <jflf_kernel@gmx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c
index 92a7247b62999bfbb2a848182b5239ea21ff3f48..0eb417b8f7090b3d2edfb2b7e35ca23d06ec6ab4 100644 (file)
--- a/drivers/net/usb/cdc_ether.c
+++ b/drivers/net/usb/cdc_ether.c
@@ -777,6 +777,13 @@ static const struct usb_device_id  products[] = {
 },
 #endif
 
+/* Lenovo ThinkPad OneLink+ Dock (based on Realtek RTL8153) */
+{
+       USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x3054, USB_CLASS_COMM,
+                       USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
+       .driver_info = 0,
+},
+
 /* ThinkPad USB-C Dock (based on Realtek RTL8153) */
 {
        USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x3062, USB_CLASS_COMM,

diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index 1ed358d0da84a8b116a8f0c89a3878d250e0b759..d17d125a34540c0646ace86353e9e6c75497131a 100644 (file)
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -5312,6 +5312,7 @@ static const struct usb_device_id rtl8152_table[] = {
        {REALTEK_USB_DEVICE(VENDOR_ID_MICROSOFT, 0x0927)},
        {REALTEK_USB_DEVICE(VENDOR_ID_SAMSUNG, 0xa101)},
        {REALTEK_USB_DEVICE(VENDOR_ID_LENOVO,  0x304f)},
+       {REALTEK_USB_DEVICE(VENDOR_ID_LENOVO,  0x3054)},
        {REALTEK_USB_DEVICE(VENDOR_ID_LENOVO,  0x3062)},
        {REALTEK_USB_DEVICE(VENDOR_ID_LENOVO,  0x3069)},
        {REALTEK_USB_DEVICE(VENDOR_ID_LENOVO,  0x7205)},