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Message-Id: <20220910211623.69825-20-sashal@kernel.org> Date: Sat, 10 Sep 2022 17:16:05 -0400 From: Sasha Levin <sashal@...nel.org> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org Cc: Jean-Francois Le Fillatre <jflf_kernel@....com>, "David S . Miller" <davem@...emloft.net>, Sasha Levin <sashal@...nel.org>, oliver@...kum.org, edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com, hayeswang@...ltek.com, aaron.ma@...onical.com, chenhao288@...ilicon.com, dober6023@...il.com, linux-usb@...r.kernel.org, netdev@...r.kernel.org Subject: [PATCH AUTOSEL 5.19 20/38] r8152: add PID for the Lenovo OneLink+ Dock From: Jean-Francois Le Fillatre <jflf_kernel@....com> [ Upstream commit 1bd3a383075c64d638e65d263c9267b08ee7733c ] 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@....com> Signed-off-by: David S. Miller <davem@...emloft.net> Signed-off-by: Sasha Levin <sashal@...nel.org> --- drivers/net/usb/cdc_ether.c | 7 +++++++ drivers/net/usb/r8152.c | 3 +++ 2 files changed, 10 insertions(+) diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c index 2de09ad5bac03..e11f70911acc1 100644 --- 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 d142ac8fcf6e2..688905ea0a6d3 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -770,6 +770,7 @@ enum rtl8152_flags { RX_EPROTO, }; +#define DEVICE_ID_THINKPAD_ONELINK_PLUS_DOCK 0x3054 #define DEVICE_ID_THINKPAD_THUNDERBOLT3_DOCK_GEN2 0x3082 #define DEVICE_ID_THINKPAD_USB_C_DONGLE 0x720c #define DEVICE_ID_THINKPAD_USB_C_DOCK_GEN2 0xa387 @@ -9581,6 +9582,7 @@ static bool rtl8152_supports_lenovo_macpassthru(struct usb_device *udev) if (vendor_id == VENDOR_ID_LENOVO) { switch (product_id) { + case DEVICE_ID_THINKPAD_ONELINK_PLUS_DOCK: case DEVICE_ID_THINKPAD_THUNDERBOLT3_DOCK_GEN2: case DEVICE_ID_THINKPAD_USB_C_DOCK_GEN2: case DEVICE_ID_THINKPAD_USB_C_DOCK_GEN3: @@ -9828,6 +9830,7 @@ 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, 0x3082), -- 2.35.1
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