From ad8fb554f04e38f155c9bc34bbf521fc592ceee7 Mon Sep 17 00:00:00 2001
From: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Date: Tue, 22 May 2018 17:16:08 -0700
Subject: [PATCH] Input: synaptics - add Lenovo 80 series ids to SMBus
Git-commit: ad8fb554f04e38f155c9bc34bbf521fc592ceee7
Patch-mainline: v4.17
References: bsc#1051510
This time, Lenovo decided to go with different pieces in its latest
series of Thinkpads.
For those we have been able to test:
- the T480 is using Synaptics with an IBM trackpoint
-> it behaves properly with or without intertouch, there is no point
not using RMI4
- the X1 Carbon 6th gen is using Synaptics with an IBM trackpoint
-> the touchpad doesn't behave properly under PS/2 so we have to
switch it to RMI4 if we do not want to have disappointed users
- the X280 is using Synaptics with an ALPS trackpoint
-> the recent fixes in the trackpoint handling fixed it so upstream
now works fine with or without RMI4, and there is no point not
using RMI4
- the T480s is using an Elan touchpad, so that's a different story
Cc: <stable@vger.kernel.org> # v4.14.x, v4.15.x, v4.16.x
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: KT Liao <kt.liao@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/input/mouse/synaptics.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -172,10 +172,12 @@ static const char * const smbus_pnp_ids[
"LEN0048", /* X1 Carbon 3 */
"LEN0046", /* X250 */
"LEN004a", /* W541 */
+ "LEN0071", /* T480 */
"LEN0072", /* X1 Carbon Gen 5 (2017) - Elan/ALPS trackpoint */
"LEN0073", /* X1 Carbon G5 (Elantech) */
"LEN0092", /* X1 Carbon 6 */
"LEN0096", /* X280 */
+ "LEN0097", /* X280 -> ALPS trackpoint */
"LEN200f", /* T450s */
NULL
};