[PATCH 0/1] Input/trackpoint: Add new ELAN trackpoint device variant id 7

[Yuan Yao]

The new ELAN trackpoint variant id 7 is found on thinkpad
X14 Gen1 laptop(Product Name: 21XMA006CD), it's now
incorrectly probed as Generic or Logitech PS/2 mouse but not
trackpoint.

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

I tested the sensitivity/middle button lock/rate/resolution
setting, the trackpoint works well in daily usage and when
resume form system sleeping, no issue is found in my last
weeks usage.


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

AFTER:
psmouse serio1: trackpoint: Elan_variant7 TrackPoint firmware: 0xa1, buttons: 3/3
input: TPPS/2 Elan_variant7 TrackPoint as /devices/platform/i8042/serio1/input/input65

The patch is rebased to 7.4-rc1.

Yuan Yao (1):
  Input: trackpoint - Add new ELAN trackpoint device variant id 7

 drivers/input/mouse/trackpoint.c | 2 ++
 drivers/input/mouse/trackpoint.h | 1 +
 2 files changed, 3 insertions(+)


base-commit: 6628e7d4c6b25c8d18f1345e3a20d21829aae7e4
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2.56.0