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>

diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index 26071128f43a7aae86d66d531d7d6726833c0259..c70502e24031aab7401643962cfdfd1f87cfa446 100644 (file)
--- 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 */