From 7890fd28fd12b321ccd9e4fdeadbdf9c5ea1be7a Mon Sep 17 00:00:00 2001 From: Shashwat Agrawal Date: Fri, 26 Jun 2026 18:30:51 +0530 Subject: [PATCH] Input: synaptics - enable InterTouch on Dell Inspiron 3521 The Synaptics touchpad on Dell Inspiron 3521 (PNP ID DLL0597) advertises InterTouch / SMBus support, but is not on the SMBus passlist, so the driver falls back to PS/2 and logs a hint to try psmouse.synaptics_intertouch=1. Add DLL0597 to smbus_pnp_ids so InterTouch is enabled automatically on this model (and other Dells that reuse the same PNP ID). Hardware: Dell Inc. Inspiron 3521 (board 06RYX8, BIOS A07), Synaptics fw 8.1 / board id 2382, firmware_id "PNP: DLL0597 PNP0f13". Signed-off-by: Shashwat Agrawal Link: https://patch.msgid.link/20260626130051.2574-1-shashwatagrawal473@gmail.com Signed-off-by: Dmitry Torokhov --- drivers/input/mouse/synaptics.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c index c70502e24031..2170bbe4c589 100644 --- a/drivers/input/mouse/synaptics.c +++ b/drivers/input/mouse/synaptics.c @@ -164,6 +164,7 @@ static const char * const topbuttonpad_pnp_ids[] = { #ifdef CONFIG_MOUSE_PS2_SYNAPTICS_SMBUS static const char * const smbus_pnp_ids[] = { /* all of the topbuttonpad_pnp_ids are valid, we just add some extras */ + "DLL0597", /* Dell Inspiron 3521 */ "DLL060d", /* Dell Precision M3800 */ "LEN0048", /* X1 Carbon 3 */ "LEN0046", /* X250 */