[개발노트] i2c expander device tree파트

&i2c5{

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

    pinctrl-0 = <&i2c5_pins_mx>;

    //pinctrl-1 = <&i2c5_sleep_pins_mx>;

    i2c-scl-rising-time-ns = <185>;

    i2c-scl-falling-time-ns = <20>;

    status = "okay";

    /* spare dmas for other usage */

    /delete-property/dmas;

    /delete-property/dma-names;

    exp_gpio1: exp_gpio1@20 {

        compatible = "nxp,pcal6416";

        reg = <0x20>;

        gpio-controller;

        #gpio-cells = <2>;

        status = "okay";

        reset-gpios = <&gpiod 11 GPIO_ACTIVE_LOW>;

       

        interrupt-parent = <&gpioe>;

        interrupts = <13 IRQ_TYPE_EDGE_FALLING>;

        interrupt-controller;

        #interrupt-cells = <2>;

    };

};