diff options
| author | Nicolás Bazaes <contacto@bazaes.cl> | 2026-05-13 21:35:49 -0400 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2026-05-13 21:43:04 -0700 |
| commit | 16ca52bc209fa4bf9239cd9e5643e95533476b58 (patch) | |
| tree | fd1386337db5c2249e0e86bed6a7bf17c9e8ebef | |
| parent | 6f89d96fff65aec1ff12bc566fca0eb1bb59e16e (diff) | |
Input: synaptics - add LEN2058 to SMBus passlist for ThinkPad E490
The Lenovo ThinkPad E490 (PNP ID: LEN2058) has a Synaptics TM3471-020
touchpad that supports SMBus/RMI4 mode but is not listed in
smbus_pnp_ids[]. Without this entry, RMI4 over SMBus is not enabled
by default, and the touchpad falls back to PS/2 mode.
Adding LEN2058 to the passlist enables automatic RMI4 detection without
requiring the psmouse.synaptics_intertouch parameter, and matches
the behavior of similar ThinkPad models already in the list
(E480/LEN2054, E580/LEN2055).
Tested on ThinkPad E490 with kernel 7.0.5-zen1 and Arch Linux.
RMI4 over SMBus is confirmed working without any kernel parameters.
Signed-off-by: Nicolás Bazaes <contacto@bazaes.cl>
Assisted-by: Claude:claude-sonnet-4-6
Link: https://patch.msgid.link/20260514013552.14234-1-contacto@bazaes.cl
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| -rw-r--r-- | drivers/input/mouse/synaptics.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c index 26071128f43a..c70502e24031 100644 --- a/drivers/input/mouse/synaptics.c +++ b/drivers/input/mouse/synaptics.c @@ -190,6 +190,7 @@ static const char * const smbus_pnp_ids[] = { "LEN2044", /* L470 */ "LEN2054", /* E480 */ "LEN2055", /* E580 */ + "LEN2058", /* E490 */ "LEN2068", /* T14 Gen 1 */ "SYN1221", /* TUXEDO InfinityBook Pro 14 v5 */ "SYN3003", /* HP EliteBook 850 G1 */ |