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Mon, 26 Oct 2026 07:26:53 -0700 (PDT) Received: from kernelgen.org ([2a04:ee41:83:91ea:29ae:67de:9d1a:d368]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-48e3eb8f387sm16400703f8f.4.2026.10.26.07.26.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 26 Oct 2026 07:26:52 -0700 (PDT) From: Dmitry Mikushin To: Dmitry Torokhov Cc: Dmitry Mikushin , linux-input@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 3/3] Input: synaptics - add LEN2072 to smbus_pnp_ids for ThinkPad P14s Gen 2i Date: Mon, 26 Oct 2026 15:26:48 +0100 Message-ID: <20261026142648.2567233-4-dmitry@kernelgen.org> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261026142648.2567233-1-dmitry@kernelgen.org> References: <20261026142648.2567233-1-dmitry@kernelgen.org> X-Mailing-List: linux-input@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The ThinkPad P14s Gen 2i (20VX) has a Synaptics TM3471-030 touchpad (PNP ID LEN2072, firmware 3324237) that supports SMBus/RMI4, but it is not in smbus_pnp_ids[], so psmouse drives it in legacy PS/2 mode. There it is limited to two tracked contacts and shares the i8042 channel with the TrackPoint. With psmouse.synaptics_intertouch=1 the touchpad binds to rmi4 at SMBus address 0x2c, reports four contacts, and the TrackPoint keeps working through the RMI4 pass-through port. Suspend/resume (s2idle) works. Add LEN2072 to the smbus_pnp_ids[] passlist. Signed-off-by: Dmitry Mikushin --- 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 1ed9261bff2b..b007e642ea76 100644 --- a/drivers/input/mouse/synaptics.c +++ b/drivers/input/mouse/synaptics.c @@ -194,6 +194,7 @@ static const char * const smbus_pnp_ids[] = { "LEN2058", /* E490 */ "LEN205b", /* T490 */ "LEN2068", /* T14 Gen 1 */ + "LEN2072", /* P14s Gen 2i */ "SYN1221", /* TUXEDO InfinityBook Pro 14 v5 */ "SYN3003", /* HP EliteBook 850 G1 */ "SYN3015", /* HP EliteBook 840 G2 */ -- 2.56.0