Unverified Commit bee278e1 authored by Sebastian Reichel's avatar Sebastian Reichel Committed by Ilpo Järvinen
Browse files

dt-bindings: embedded-controller: Add Lenovo Thinkpad T14s EC 



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: default avatarBryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: default avatarSebastian Reichel <sre@kernel.org>
Acked-by: default avatarRob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20250918-thinkpad-t14s-ec-v5-1-ac0bc6382c5c@collabora.com


Reviewed-by: default avatarIlpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: default avatarIlpo Järvinen <ilpo.jarvinen@linux.intel.com>
parent 8236b466

Documentation/devicetree/bindings/embedded-controller/lenovo,thinkpad-t14s-ec.yaml

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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/embedded-controller/lenovo,thinkpad-t14s-ec.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: Lenovo Thinkpad T14s Embedded Controller



maintainers:

  - Sebastian Reichel <sre@kernel.org>



description:

  The Qualcomm Snapdragon-based Lenovo Thinkpad T14s has an Embedded Controller

  (EC) which handles things such as keyboard backlight, LEDs or non-standard

  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 <dt-bindings/interrupt-controller/irq.h>

    i2c {

        #address-cells = <1>;

        #size-cells = <0>;



        embedded-controller@28 {

            compatible = "lenovo,thinkpad-t14s-ec";

            reg = <0x28>;

            interrupts-extended = <&tlmm 66 IRQ_TYPE_LEVEL_LOW>;

            wakeup-source;

        };

    };

...