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GitHub Repository: torvalds/linux
 Path: blob/master/Documentation/devicetree/bindings/embedded-controller/huawei,gaokun3-ec.yaml
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

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%YAML 1.2

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---

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$id: http://devicetree.org/schemas/embedded-controller/huawei,gaokun3-ec.yaml#

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

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title: Huawei Matebook E Go Embedded Controller

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maintainers:

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  - Pengyu Luo <mitltlatltl@gmail.com>

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description:

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  Different from other Qualcomm Snapdragon sc8180x and sc8280xp-based

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  machines, the Huawei Matebook E Go tablets use embedded controllers

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  while others use a system called PMIC GLink which handles battery,

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  UCSI, USB Type-C DP Alt Mode. In addition, Huawei's implementation

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  also handles additional features, such as charging thresholds, FN

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  lock, smart charging, tablet lid status, thermal sensors, and more.

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properties:

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  compatible:

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    enum:

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      - huawei,gaokun3-ec

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  reg:

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    const: 0x38

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  '#address-cells':

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    const: 1

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  '#size-cells':

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    const: 0

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  interrupts:

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    maxItems: 1

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patternProperties:

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  '^connector@[01]$':

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    $ref: /schemas/connector/usb-connector.yaml#

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    properties:

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      reg:

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        maxItems: 1

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required:

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  - compatible

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  - reg

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  - interrupts

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additionalProperties: false

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examples:

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  - |

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

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    i2c {

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        #address-cells = <1>;

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        #size-cells = <0>;

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        embedded-controller@38 {

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            compatible = "huawei,gaokun3-ec";

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            reg = <0x38>;

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            interrupts-extended = <&tlmm 107 IRQ_TYPE_LEVEL_LOW>;

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            #address-cells = <1>;

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            #size-cells = <0>;

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            connector@0 {

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                compatible = "usb-c-connector";

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                reg = <0>;

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                power-role = "dual";

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                data-role = "dual";

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                ports {

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                    #address-cells = <1>;

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                    #size-cells = <0>;

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                    port@0 {

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                        reg = <0>;

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                        ucsi0_ss_in: endpoint {

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                            remote-endpoint = <&usb_0_qmpphy_out>;

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                        };

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                    };

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                    port@1 {

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                        reg = <1>;

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                        ucsi0_sbu: endpoint {

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                            remote-endpoint = <&usb0_sbu_mux>;

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                        };

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                    };

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                };

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            };

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            connector@1 {

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                compatible = "usb-c-connector";

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                reg = <1>;

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                power-role = "dual";

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                data-role = "dual";

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                ports {

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                    #address-cells = <1>;

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                    #size-cells = <0>;

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                    port@0 {

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                        reg = <0>;

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                        ucsi1_ss_in: endpoint {

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                            remote-endpoint = <&usb_1_qmpphy_out>;

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                        };

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                    };

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                    port@1 {

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                        reg = <1>;

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                        ucsi1_sbu: endpoint {

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                            remote-endpoint = <&usb1_sbu_mux>;

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                        };

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                    };

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                };

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            };

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        };

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    };

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