Unverified Commit defcf2fb authored by Pengyu Luo's avatar Pengyu Luo Committed by Ilpo Järvinen
Browse files

dt-bindings: platform: Add Huawei Matebook E Go EC 

Add binding for the EC found in the Huawei Matebook E Go and
Huawei Matebook E Go LTE 2-in-1 tablets, the former one is a QS sc8280xp
based tablet, the latter one is a QS sc8180x based tablet.

This series has a codename, gaokun. More information about gaokun, please
check https://bugzilla.kernel.org/show_bug.cgi?id=219645



Signed-off-by: default avatarPengyu Luo <mitltlatltl@gmail.com>
Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250214180656.28599-2-mitltlatltl@gmail.com


Reviewed-by: default avatarIlpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: default avatarIlpo Järvinen <ilpo.jarvinen@linux.intel.com>
parent 5ad6d62c

Documentation/devicetree/bindings/platform/huawei,gaokun-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/platform/huawei,gaokun-ec.yaml#

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



title: Huawei Matebook E Go Embedded Controller



maintainers:

  - Pengyu Luo <mitltlatltl@gmail.com>



description:

  Different from other Qualcomm Snapdragon sc8180x and sc8280xp-based

  machines, the Huawei Matebook E Go tablets use embedded controllers

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

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

  also handles additional features, such as charging thresholds, FN

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



properties:

  compatible:

    enum:

      - huawei,gaokun3-ec



  reg:

    const: 0x38



  '#address-cells':

    const: 1



  '#size-cells':

    const: 0



  interrupts:

    maxItems: 1



patternProperties:

  '^connector@[01]$':

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



    properties:

      reg:

        maxItems: 1



required:

  - compatible

  - reg

  - interrupts



additionalProperties: false



examples:

  - |

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

    i2c {

        #address-cells = <1>;

        #size-cells = <0>;



        embedded-controller@38 {

            compatible = "huawei,gaokun3-ec";

            reg = <0x38>;



            interrupts-extended = <&tlmm 107 IRQ_TYPE_LEVEL_LOW>;



            #address-cells = <1>;

            #size-cells = <0>;



            connector@0 {

                compatible = "usb-c-connector";

                reg = <0>;

                power-role = "dual";

                data-role = "dual";



                ports {

                    #address-cells = <1>;

                    #size-cells = <0>;



                    port@0 {

                        reg = <0>;



                        ucsi0_ss_in: endpoint {

                            remote-endpoint = <&usb_0_qmpphy_out>;

                        };

                    };



                    port@1 {

                        reg = <1>;



                        ucsi0_sbu: endpoint {

                            remote-endpoint = <&usb0_sbu_mux>;

                        };

                    };

                };

            };



            connector@1 {

                compatible = "usb-c-connector";

                reg = <1>;

                power-role = "dual";

                data-role = "dual";



                ports {

                    #address-cells = <1>;

                    #size-cells = <0>;



                    port@0 {

                        reg = <0>;



                        ucsi1_ss_in: endpoint {

                            remote-endpoint = <&usb_1_qmpphy_out>;

                        };

                    };



                    port@1 {

                        reg = <1>;



                        ucsi1_sbu: endpoint {

                            remote-endpoint = <&usb1_sbu_mux>;

                        };

                    };

                };

            };

        };

    };