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Larocque" Cc: linux-input@vger.kernel.org, salmundani@gmail.com, linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: Re: [PATCH] Input: synaptics - limit T440p InterTouch quirk to LEN0036 Message-ID: References: <20260927005810.85971-1-rlarocque@disroot.org> Precedence: bulk X-Mailing-List: linux-input@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20260927005810.85971-1-rlarocque@disroot.org> On Sat, Sep 26, 2026 at 08:58:10PM -0400, R. Larocque wrote: > From: "Raphaël Larocque" > > The ThinkPad L440 also uses board id 2722, but does not have the SMBus > initialization problem seen on the T440p. On the L440, the SMBus > companion becomes available shortly after psmouse probes, allowing the > touchpad to use SMBus/RMI4 normally. > > The T440p's quirk is currently applied to all Synaptics touchpads with > board id 2722, unnecessarily disabling SMBus InterTouch on the L440, > as reported by Daniel Salmun. > > Restrict the quirk to PNP ID LEN0036, which identifies the T440p, so > that other devices sharing board id 2722 retain their normal > SMBus/RMI4 operation. > > Reported-by: Daniel Salmun > Link: https://lore.kernel.org/all/20260925230039.236786-1-salmundani@gmail.com/ > Fixes: 26eb3d92c7a4 ("Input: synaptics - disable InterTouch on ThinkPad T440p (board id 2722)") > Cc: stable@vger.kernel.org > Signed-off-by: Raphaël Larocque Swapped the condition (since integer check is cheaper) and applied, thank you. -- Dmitry