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The Embedded Controller in the Huawei Matebook E Go is accessible on &i2c15 and provides battery and adapter status, port orientation status, as well as HPD event notifications for two USB Type-C port, etc. Add the EC to the device tree and describe the relationship among the type-c connectors, role switches, orientation switches and the QMP combo PHY. Signed-off-by: Pengyu Luo <mitltlatltl@gmail.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Link: https://lore.kernel.org/r/20250214180656.28599-4-mitltlatltl@gmail.com Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>