TDA4VM: linux 下配置与操作GPIO

pitang niu

Part Number: TDA4VM

按照官方给出的步骤，[FAQ] TDA4VM/DRA829/AM65xx: Linux: Configuring GPIOs - Processors forum - Processors - TI E2E support forums我在设备树下做了如下变动

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    mygpio {
        compatible = "myesp32io";
        pinctrl-names = "default";
        pinctrl-0 = <&esp32_ctl1_pins_default>;
        gpio0 = <&main_gpio0 45 GPIO_ACTIVE_HIGH>;
        gpio1 = <&main_gpio0 46 GPIO_ACTIVE_HIGH>;
        gpio2 = <&main_gpio1 0 GPIO_ACTIVE_HIGH>;
    };
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    mygpio {
		compatible = "myesp32io";
		pinctrl-names = "default";
		pinctrl-0 = <&esp32_ctl1_pins_default>;
        gpio0 = <&main_gpio0 45 GPIO_ACTIVE_HIGH>;
        gpio1 = <&main_gpio0 46 GPIO_ACTIVE_HIGH>;
		gpio2 = <&main_gpio1 0 GPIO_ACTIVE_HIGH>;
    };

但是在加载驱动时 gpio2获取失败，我不太明白TDA4VM中为什么没有main_pmx1，查看系统下的gpio后发现确实只有gpiochip360是挂载main_gpio0上的：