在高通平臺如何添加沒有定義的按鍵

1.在對應的文件裏添加設備樹  如： kernel/msm-3.18/arch/arm/boot/dts/qcom/msm8953-nopmi-qrd.dtsi &soc { gpio_keys { compatible = "gpio-keys"; input-name = "gpio-keys"; pinctrl-names = "tlmm_gpio_key_active","tlmm_gpi

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