[기술노트] esp-hosted를 위한 spi2 device tree

&spi2{

    pinctrl-names = "default","sleep";

    pinctrl-0 = <&spi2_pins_mx>;

    pinctrl-1 = <&spi2_sleep_pins_mx>;

    cs-gpios = <&gpiob 9 0>;

    status = "okay";

   

    spidev2: spidev@0{

        compatible = "linux,spidev";

        reg = <0>;

        spi-max-frequency = <20000000>;

    };

};

&spidev2{

    status = "disable";

};