7.13.2. 参数配置

7.13.2.1. 内核配置

7.13.2.1.1. 配置 IIO

在 luban 根目录下执行 make menuconfig，进入配置，按如下选择：

ArtInChip Luban SDK Configuration
    Linux kernel
        Advance setting
            Linux Kernel Tools
                <*>iio

7.13.2.1.2. 配置 PSADC

在luban根目录下执行 make kernel-menuconfig，进入kernel的功能配置，按如下选择：

Linux
    Device Drivers
        <*> Industrial I/O support
            Analog to digital converters
                <*> Artinchip PSADC driver

7.13.2.2. DTS 参数配置

7.13.2.2.1. D211 配置

在common/d211.dtsi中的PSADC控制器定义：

psadc: psadc@18210000 {
    compatible = "artinchip,aic-psadc-v1.0";
    reg = <0x0 0x18210000 0x0 0x1000>;
    interrupts-extended = <&plic0 28 IRQ_TYPE_LEVEL_HIGH>;
    clocks = <&cmu CLK_PSADC>, <&cmu CLK_APB0>;
    clock-names = "psadc", "pclk";
    resets = <&rst RESET_PSADC>;
    #io-channel-cells = <1>;
    status = "disabled";
};

7.13.2.2.2. Board 配置

xxx/board.dts中的参数配置需要区分通道号，每个通道可以单独使能。使能的通道，需要指定该通道用到的GPIO配置，如下面的 psadc5_pins：

&psadc {
    status = "okay";
    pinctrl-names = "default";
    pinctrl-0 = <&psadc5_pins>;

    psadc0 {
        status = "disabled";
    };

    psadc1 {
        status = "disabled";
    };

    psadc2 {
        status = "disabled";
    };

    psadc3 {
        status = "disabled";
    };

    psadc4 {
        status = "disabled";
    };

    psadc5 {
        status = "disabled";
    };

    psadc6 {
        status = "okay";
    };

    psadc7 {
        status = "disabled";
    };

    psadc8 {
        status = "disabled";
    };

    psadc9 {
        status = "disabled";
    };

    psadc10 {
        status = "disabled";
    };

    psadc11 {
        status = "disabled";
    };
};