From nobody Mon Feb 9 16:38:30 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C1AA62E0905; Thu, 18 Sep 2025 21:20:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758230457; cv=none; b=uny50QiJrxYUjqyiEFUwQjWO4++Diuv37pxlVF0l4OJjb0Uv+XSPMqu/QXgYQr1yDXaQbBggotvEWZgu3PUDidQYixuMslLhVvyx5wu5LntvYjEUTS2uM0qJXD9O1+lE8+GnRX/nOW/9G9ZAlGgBCestnbVKoRVMcpNNX43IMpw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758230457; c=relaxed/simple; bh=jvo7GR+au7e8XXiUD6Y887uMomLI0ITYe2QUQ37dR0o=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=MwIodkciEvUkGMaOWkoaFeVNJG936da4VzaDdqP5mI1fipxnkShNoBsn0XmORD3UVNtUvCSi19DaFFU9SG6dR8FeX0QtEBWHDvDkmEh9kOemhI9NHwMdQ8SbLWVehE6nmzUaPGP4M5Fvqn8410rGA8hrIGu3sfkFjSJ80YRKwN0= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=UfDSGT9M; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="UfDSGT9M" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E0158C4AF0B; Thu, 18 Sep 2025 21:20:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1758230457; bh=jvo7GR+au7e8XXiUD6Y887uMomLI0ITYe2QUQ37dR0o=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=UfDSGT9MS25By2l+4BHVNoFTv6Yp7BemNbKbhBXxp+sK8iNSDni2+Vna7t2N3k8h3 IkWaQ6U2NV3LnNMXDwfBS20HNapWt0lO0iC5UiSjwU1Hi4U/plbye7K3wIlqnT7e+b fIqvYd+VCjZ7F8fnQcDNUkJiY4qvC3nbrQb+IhyP1w2PvlnBkx7zp/+y5xgJ6UkOIY 0B1k3cqXTZLSqT33jP0ddvhw56RBoMKo+UfGXAe4dJZI3IitpQcj24Zw8p23b3hwoP +R2fCbEQ7p4XDS8gIqp31s+IpLUzYQFoKwBGNzrBlraEWlANXmvxE/cCagZdGvLhJ2 M+WGfGRtXma+g== Received: by venus (Postfix, from userid 1000) id 27BBD180517; Thu, 18 Sep 2025 23:20:50 +0200 (CEST) From: Sebastian Reichel Date: Thu, 18 Sep 2025 23:20:26 +0200 Subject: [PATCH v5 1/3] dt-bindings: platform: Add Lenovo Thinkpad T14s EC Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250918-thinkpad-t14s-ec-v5-1-ac0bc6382c5c@collabora.com> References: <20250918-thinkpad-t14s-ec-v5-0-ac0bc6382c5c@collabora.com> In-Reply-To: <20250918-thinkpad-t14s-ec-v5-0-ac0bc6382c5c@collabora.com> To: Sebastian Reichel , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Hans de Goede , =?utf-8?q?Ilpo_J=C3=A4rvinen?= , Bryan O'Donoghue , Bjorn Andersson , Konrad Dybcio , Mark Pearson Cc: "Derek J. Clark" , Henrique de Moraes Holschuh , Neil Armstrong , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, platform-driver-x86@vger.kernel.org, linux-arm-msm@vger.kernel.org, Krzysztof Kozlowski X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=2093; i=sebastian.reichel@collabora.com; h=from:subject:message-id; bh=jvo7GR+au7e8XXiUD6Y887uMomLI0ITYe2QUQ37dR0o=; b=owEBbQKS/ZANAwAKAdju1/PIO/qaAcsmYgBozHexaz8QqjPffUjsTNBJn39mAA8pt2632OZGQ T+IUjymzy+JAjMEAAEKAB0WIQTvZg0HRj+Lcmp5VBPY7tfzyDv6mgUCaMx3sQAKCRDY7tfzyDv6 mihqD/wMQixzNzHk9GEP6s62H16iS535mnMWyLiw2s1BUufWYi7VcHyK5bBIqJZi5/M9H7Qkvw+ LKXwykjcjDMrlXCGcZZTyz2eom6H4LX6JYBXzUci/FApnjuKmaP15LnViPqG7pVD8sBp/EDFa0k WSqV6c3ontg6x7IVHvFXUzWB8KguZ4otLcK7MOzpvwjfSSI2qCqFjc9V/+5JxnDPtX1YDXDpLYw QMLEHewhs1Bs9nMeoYitVn41EaGa8LiIyMbLazc09hCd2OftvclVYws6b+mHgTTpBnwBx5ESYEJ LvcH1ocx9VXG8M6Ed/2mMMkURzzZCjNSJnvGKP0csAMuBQ/tslRTw5bVugGoL0fdCbw641fDh/A OKFHttzOREwfMKXfm4aK6JsqOmMfVIcTB6oVtz1tiK3eF2tbLdK1uXOWL0oUQgn4FkKh2lO5XVH N9d/fL5rbDmFd1RRGgL7FWWUFqMbHHBOqwPdVAxw4q8Bg8LrD5peQIO53nPLfQTWNvfp5qhDXNw DJv9l/rWj+cE2kQ4QBCm703m/lVIF+ZllnRdjhvM1/jvLSy3tcKyeiMGiCiWIl0PCVe4yKWN2s1 JhbW8jKHMbN2xW1Osay/qtUkXHOtuAeK0dTGpctyctyCsfLKrrgHJ+VKNqcwKLO3aS4xDG7Seuk THNVrTEoC+oRo4g== X-Developer-Key: i=sebastian.reichel@collabora.com; a=openpgp; fpr=EF660D07463F8B726A795413D8EED7F3C83BFA9A Add binding for the EC found in the Thinkpad T14s Gen6 Snapdragon, which is based on the Qualcomm X1 Elite. Some of the system LEDs and extra keys are only accessible via the EC. Reviewed-by: Bryan O'Donoghue Reviewed-by: Krzysztof Kozlowski Signed-off-by: Sebastian Reichel Acked-by: Rob Herring (Arm) --- .../lenovo,thinkpad-t14s-ec.yaml | 50 ++++++++++++++++++= ++++ 1 file changed, 50 insertions(+) diff --git a/Documentation/devicetree/bindings/embedded-controller/lenovo,t= hinkpad-t14s-ec.yaml b/Documentation/devicetree/bindings/embedded-controlle= r/lenovo,thinkpad-t14s-ec.yaml new file mode 100644 index 0000000000000000000000000000000000000000..c87ccb5b30868c7a616ec08b869= 286d627dd7406 --- /dev/null +++ b/Documentation/devicetree/bindings/embedded-controller/lenovo,thinkpad= -t14s-ec.yaml @@ -0,0 +1,50 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/embedded-controller/lenovo,thinkpad-t14= s-ec.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Lenovo Thinkpad T14s Embedded Controller + +maintainers: + - Sebastian Reichel + +description: + The Qualcomm Snapdragon-based Lenovo Thinkpad T14s has an Embedded Contr= oller + (EC) which handles things such as keyboard backlight, LEDs or non-standa= rd + keys. + +properties: + compatible: + const: lenovo,thinkpad-t14s-ec + + reg: + const: 0x28 + + interrupts: + maxItems: 1 + + wakeup-source: true + +required: + - compatible + - reg + - interrupts + +additionalProperties: false + +examples: + - |+ + #include + i2c { + #address-cells =3D <1>; + #size-cells =3D <0>; + + embedded-controller@28 { + compatible =3D "lenovo,thinkpad-t14s-ec"; + reg =3D <0x28>; + interrupts-extended =3D <&tlmm 66 IRQ_TYPE_LEVEL_LOW>; + wakeup-source; + }; + }; +... --=20 2.51.0