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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: Pengyu Luo <mitltlatltl@gmail.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20250214180656.28599-2-mitltlatltl@gmail.com Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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Documentation/devicetree/bindings/platform/huawei,gaokun-ec.yaml
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Documentation/devicetree/bindings/platform/huawei,gaokun-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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$id: http://devicetree.org/schemas/platform/huawei,gaokun-ec.yaml#
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$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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