Thread (3 messages) flat view 3 messages, 3 authors, 2021-02-08
STALE2029d

[PATCH] Input: elantech - add LEN2146 to SMBus blacklist for ThinkPad L13 Gen2

From: Nikolai Kostrigin <hidden>
Date: 2021-02-08 08:03:10
Also in: lkml
Subsystem: input (keyboard, mouse, joystick, touchscreen) drivers, the rest · Maintainers: Dmitry Torokhov, Linus Torvalds

ThinkPad L13 Gen2 has both touchpad and trackpoint.
PNP: LEN2146 PNP0f13
With the default protocol (elantech-smbus) trackpoint is not operating,
while touchpad does. Changing to elantech renders both operational.

Signed-off-by: Nikolai Kostrigin <redacted>
---
 drivers/input/mouse/elantech.c | 1 +
 1 file changed, 1 insertion(+)
diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
index 90f8765f9efc..c4c3fa5828d8 100644
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -1776,6 +1776,7 @@ static const char * const i2c_blacklist_pnp_ids[] = {
 	 * These are known to not be working properly as bits are missing
 	 * in elan_i2c.
 	 */
+	"LEN2146", /* ThinkPad L13 Gen2 */
 	NULL
 };
 
-- 
2.29.2
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