Add binding for the EC found in the Huawei Matebook E Go (sc8280xp) and Huawei Matebook E Go LTE (sc8180x) 2in1 tablet. Signed-off-by: Pengyu Luo <mitltlatltl@xxxxxxxxx> --- .../bindings/platform/huawei,gaokun-ec.yaml | 116 ++++++++++++++++++ 1 file changed, 116 insertions(+) create mode 100644 Documentation/devicetree/bindings/platform/huawei,gaokun-ec.yaml diff --git a/Documentation/devicetree/bindings/platform/huawei,gaokun-ec.yaml b/Documentation/devicetree/bindings/platform/huawei,gaokun-ec.yaml new file mode 100644 index 000000000..f5488b57b --- /dev/null +++ b/Documentation/devicetree/bindings/platform/huawei,gaokun-ec.yaml @@ -0,0 +1,116 @@ +# 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@xxxxxxxxx> + +description: + Different from other Qualcomm Snapdragon sc8180x sc8280xp based machines, + the Huawei Matebook E Go tablets use embedded controllers while others + use something called pmic glink which handles battery, UCSI, USB Type-C DP + alt mode. Huawei one handles even more, like charging thresholds, FN lock, + lid status, HPD events for the USB Type-C DP alt mode, etc. + +properties: + compatible: + items: + - enum: + - huawei,sc8180x-gaokun-ec + - huawei,sc8280xp-gaokun-ec + - const: huawei,gaokun-ec + + reg: + const: 0x38 + + interrupts: + maxItems: 1 + + connector: + $ref: /schemas/connector/usb-connector.yaml# + +required: + - compatible + - reg + - interrupts + +additionalProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/irq.h> + i2c15 { + clock-frequency = <400000>; + + pinctrl-names = "default"; + pinctrl-0 = <&i2c15_default>; + + embedded-controller@38 { + compatible = "huawei,sc8280xp-gaokun-ec", ""huawei,gaokun-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>; + }; + }; + }; + }; + }; -- 2.47.1
