[PATCH v2 1/1] Input: trackpoint - Add new TP JYT_NDT device variant id 7

[Yuan Yao <yaoyuan0329os@gmail.com>]

The new trackpoint variant id 7 is found on Lenovo Thinkpad X14
Gen1 laptop(Product Name: 21XMA006CD), it belongs to JYT_NDT with
confirmation from Vishnu Sankar in Lenovo. now it's incorrectly
probed as Generic or Logitech PS/2 mouse.

Add the variant id 7 to match the TP_READ_ID command return
value, probe the device as trackpoint correctly.

BEFORE:
input: PS/2 Generic Mouse as /devices/platform/i8042/serio1/input/input63

AFTER:
psmouse serio1: trackpoint: JYT_NDT TrackPoint firmware: 0xa1, buttons: 3/3
input: TPPS/2 JYT_NDT TrackPoint as /devices/platform/i8042/serio1/input/input8

Signed-off-by: Yuan Yao <yaoyuan@linux.alibaba.com>
---
 drivers/input/mouse/trackpoint.c | 2 ++
 drivers/input/mouse/trackpoint.h | 1 +
 2 files changed, 3 insertions(+)

diff --git a/drivers/input/mouse/trackpoint.c b/drivers/input/mouse/trackpoint.c
index 3bd8fdf56cd3..2dde8cc5cab1 100644
--- a/drivers/input/mouse/trackpoint.c
+++ b/drivers/input/mouse/trackpoint.c
@@ -25,6 +25,7 @@ static const char * const trackpoint_variants[] = {
 	[TP_VARIANT_NXP]		= "NXP",
 	[TP_VARIANT_JYT_SYNAPTICS]	= "JYT_Synaptics",
 	[TP_VARIANT_SYNAPTICS]		= "Synaptics",
+	[TP_VARIANT_JYT_NDT]		= "JYT_NDT"
 };
 
 /*
@@ -285,6 +286,7 @@ static int trackpoint_start_protocol(struct psmouse *psmouse,
 	case TP_VARIANT_ELAN:
 	case TP_VARIANT_NXP:
 	case TP_VARIANT_JYT_SYNAPTICS:
+	case TP_VARIANT_JYT_NDT:
 	case TP_VARIANT_SYNAPTICS:
 		if (variant_id)
 			*variant_id = param[0];
diff --git a/drivers/input/mouse/trackpoint.h b/drivers/input/mouse/trackpoint.h
index 3e03cdb39449..2aa76311e400 100644
--- a/drivers/input/mouse/trackpoint.h
+++ b/drivers/input/mouse/trackpoint.h
@@ -30,6 +30,7 @@
 #define TP_VARIANT_NXP			0x04
 #define TP_VARIANT_JYT_SYNAPTICS	0x05
 #define TP_VARIANT_SYNAPTICS		0x06
+#define TP_VARIANT_JYT_NDT		0x07
 
 /*
  * Commands
-- 
2.56.0