diff mbox series

[v3] r8152: add PID for the Lenovo OneLink+ Dock

Message ID 20220824191435.17910-1-jflf_kernel@gmx.com (mailing list archive)
State Accepted
Delegated to: Netdev Maintainers
Headers show
Series [v3] r8152: add PID for the Lenovo OneLink+ Dock | expand

Checks

Context Check Description
netdev/tree_selection success Guessed tree name to be net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/subject_prefix warning Target tree name not specified in the subject
netdev/cover_letter success Single patches do not need cover letters
netdev/patch_count success Link
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 170 this patch: 170
netdev/cc_maintainers warning 1 maintainers not CCed: hayeswang@realtek.com
netdev/build_clang success Errors and warnings before: 0 this patch: 0
netdev/module_param success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 170 this patch: 170
netdev/checkpatch warning CHECK: Alignment should match open parenthesis
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Jean-Francois Le Fillatre Aug. 24, 2022, 7:14 p.m. UTC 
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>
---
v2 -> v3: fix commit email address, add revision details
v1 -> v2: use full author name


 drivers/net/usb/cdc_ether.c | 7 +++++++
 drivers/net/usb/r8152.c     | 3 +++
 2 files changed, 10 insertions(+)

--
2.34.1
diff mbox series

Patch

diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c
index 2de09ad5b..e11f70911 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 0f6efaaba..e692a1576 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
@@ -9584,6 +9585,7 @@  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:
@@ -9831,6 +9833,7 @@  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),