From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-10627.protonmail.ch (mail-10627.protonmail.ch [79.135.106.27]) (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 7994F3A59A2; Sat, 10 Oct 2026 14:55:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=79.135.106.27 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791644159; cv=none; b=MY+401SSKtXCaKsJriag1y/NSp26NvFWx2KDulPFyzIBX3mPgB+suxv6JSUY79hYfvOm0kU4c+aMhWuBiVvgFNiBvRSwm0yfbzX/HAPTpZtefeHcL1CPN0SZXd/Tnqm1vy8FJjn6B2QXoaKKjjk14eti1ylxeaw4/+7ec1wBLGY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791644159; c=relaxed/simple; bh=QauSac4eEmwrjm9GVTVmaJxgSEB/GL7XFgZqrNAJfkQ=; h=Date:To:From:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=BLPJSp+Dpahh0IcTN6+/iaXsWvP2ftpQj4C2cMjG8GFz2EVuGsgUuZBAQ/TGfnEpiAyOxR8CmTdw8PQbo3rBq4vRvq+Hug4bKgnRZIviFkmW/3eMwU0Cx1FN9YiSWpKMr5FsU1mhIkOC4oWYIPQDr78FpvZ3WgM69sUaZT6aPrs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=ironrobin.net; spf=pass smtp.mailfrom=ironrobin.net; dkim=pass (2048-bit key) header.d=ironrobin.net header.i=@ironrobin.net header.b=GdIeNDS7; arc=none smtp.client-ip=79.135.106.27 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=ironrobin.net Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ironrobin.net Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=ironrobin.net header.i=@ironrobin.net header.b="GdIeNDS7" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ironrobin.net; s=protonmail3; t=1791644148; x=1791903348; bh=xVT4UCkiAceieRS6Y8ZT2s1+mRhbeAV+mu35U/7pIN4=; h=Date:To:From:Cc:Subject:Message-ID:In-Reply-To:References: Feedback-ID:From:To:Cc:Date:Subject:Reply-To:Feedback-ID: Message-ID:BIMI-Selector; b=GdIeNDS7ibQdCzlJf983W3tcUCukm6461XYxBiXvdfYG+ImBBh7Cg0jbFz4EejK+d 6vka7fmTz2K3QHAQSW0NRdqw0dR9qzjUYl2fVo7wxYlueKK9P0DXoHVcWosCsrX/ip vj2k7mxlfwE/PQH54AZRyHkItXUbWUNTc5E8NnEumpwT9sz6oUVitc13aqypo8bts2 +OQQaGVm8BF2QhTl8JQwQ65oOW1tCY98PHwzgnT+ddr8LtE+pBeYXZ+wSoams6fC+x dm3a2mvt1ZF+OmShhHgSiKL8FgEyeaPHk9BzHxhyYjatn6arvN+iVz9F3iQ3rW5lht gqbhB4Fz+VgFw== Date: Sat, 10 Oct 2026 14:55:43 +0000 To: Hans de Goede , =?utf-8?Q?Ilpo_J=C3=A4rvinen?= From: Alex Robinson Cc: Bryan O'Donoghue , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , Konrad Dybcio , Steev Klimaszewski , platform-driver-x86@vger.kernel.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Krzysztof Kozlowski Subject: [PATCH v6 1/3] dt-bindings: embedded-controller: Add Lenovo ThinkPad X13s EC Message-ID: <20261010145519.8370-2-alex@ironrobin.net> In-Reply-To: <20261010145519.8370-1-alex@ironrobin.net> References: <20261010145519.8370-1-alex@ironrobin.net> Feedback-ID: 54785507:user:proton X-Pm-Message-ID: 5b26b3e37814a0bbea477e34523d467ff0f7f683 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 The ThinkPad X13s EC uses a command transport similar to the T14s EC, but has different keyboard-backlight, event and power-management interfaces. Add a separate binding to describe the X13s EC. Assisted-by: LLM Signed-off-by: Alex Robinson Reviewed-by: Krzysztof Kozlowski --- diff --git a/Documentation/devicetree/bindings/embedded-controller/lenovo,t= hinkpad-x13s-ec.yaml b/Documentation/devicetree/bindings/embedded-controlle= r/lenovo,thinkpad-x13s-ec.yaml new file mode 100644 --- /dev/null +++ b/Documentation/devicetree/bindings/embedded-controller/lenovo,thinkpad= -x13s-ec.yaml @@ -0,0 +1,65 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/embedded-controller/lenovo,thinkpad-x13= s-ec.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Lenovo ThinkPad X13s Embedded Controller + +maintainers: + - Alex Robinson + +description: + The Lenovo ThinkPad X13s has an I2C-connected embedded controller (EC) + providing keyboard backlight control and event notifications. In additio= n + to its event interrupt, the EC has a separate host-controlled power-stat= e + input used during transitions between normal operation and low power. + +properties: + compatible: + const: lenovo,thinkpad-x13s-ec + + reg: + const: 0x28 + + interrupts: + maxItems: 1 + + power-state-gpios: + maxItems: 1 + description: + GPIO connected to the EC power-state input, driven by the host. + The signal is high during normal operation and low in the low-power + state. It is used together with I2C power-state commands, rather tha= n + as a power-supply enable or reset signal. The GPIO is active high. + + wakeup-source: true + +required: + - compatible + - reg + - interrupts + - power-state-gpios + +additionalProperties: false + +examples: + - | + #include + #include + + i2c { + #address-cells =3D <1>; + #size-cells =3D <0>; + + embedded-controller@28 { + compatible =3D "lenovo,thinkpad-x13s-ec"; + reg =3D <0x28>; + interrupts-extended =3D <&gpio 1 IRQ_TYPE_EDGE_FALLING>; + power-state-gpios =3D <&gpio 2 GPIO_ACTIVE_HIGH>; + pinctrl-0 =3D <&ec_int_n>, <&ec_power_state>; + pinctrl-names =3D "default"; + wakeup-source; + }; + }; +...