TX2 R28.2 SPI CS-GPIO issue

Autonomous Machines Jetson & Embedded Systems Jetson TX2
1

Hi everyone,

I use TX2 spi@3240000, there are 5 devices under spi bus when I read/write the 4th device(cs4), the fist device’s cs(cs0) active as the same time with the cs4. How can fix this isuue?
my dts code as blow:

spi@3240000 { 
    status = "okay";    
    cs-gpios = <0>, 
                <&tegra_main_gpio TEGRA_MAIN_GPIO(X, 6)>,
                <&tegra_main_gpio TEGRA_MAIN_GPIO(N, 2)>,
                <&tegra_main_gpio TEGRA_MAIN_GPIO(R, 1)>,
                <&tegra_main_gpio TEGRA_MAIN_GPIO(T, 3)>,
                <&tegra_main_gpio TEGRA_MAIN_GPIO(T, 2)>;
    spi@0 {
        compatible = "spidev";
        reg = 0;
    };

    spi@1 {
        compatible = "spidev";
        reg = 1;
    };

    spi@2 {
        compatible = "spidev";
        reg = 2;
    };

    spi@3 {
        compatible = "spidev";
        reg = 3;
    };

    spi@4 {
        compatible = "spidev";
        reg = 4;
    };
    spi@5 {
        compatible = "spidev";
        reg = 5;
    };
};
2

Could you try if remove the cs0 to check if the pin working correct?

cs-gpios =  
                <&tegra_main_gpio TEGRA_MAIN_GPIO(X, 6)>,
                <&tegra_main_gpio TEGRA_MAIN_GPIO(N, 2)>,
                <&tegra_main_gpio TEGRA_MAIN_GPIO(R, 1)>,
                <&tegra_main_gpio TEGRA_MAIN_GPIO(T, 3)>,
                <&tegra_main_gpio TEGRA_MAIN_GPIO(T, 2)>;