spi2配置spidev节点后收发送数据没有反应是怎么回事

问题描述及复现步骤:

1.dts配置如下

&spi2 {
status = "okay";
max-freq = <24000000>;

spi_wk2xxx@00{
            status = "disabled";
    };

    spi_test@00 {
            compatible = "rockchip,spidev";
            reg = <0>;
            spi-max-frequency = <24000000>;
            pinctrl-names = "default";
            pinctrl-0 = <&spi2_clk &spi2_tx &spi2_rx &spi2_cs0>;
            cs-gpio = <&gpio2 RK_PB4 GPIO_ACTIVE_HIGH>;
    };

};

&pinctrl {

spi2 {
                            spi2_clk: spi2-clk {
                                    rockchip,pins =
                                    <2 11 RK_FUNC_2 &pcfg_pull_up_3ma>;
                                    };
                            spi2_cs0: spi2-cs0 {
                                    rockchip,pins =
                                    <2 12 RK_FUNC_2 &pcfg_pull_up_3ma>;
                                    };
                            spi2_rx: spi2-rx {
                                    rockchip,pins =
                                    <2 9 RK_FUNC_2 &pcfg_pull_up_3ma>;
                                    };
                                    spi2_tx: spi2-tx {
                                    rockchip,pins =
                                    <2 10 RK_FUNC_2 &pcfg_pull_up_3ma>;
                                    };

                            };

};

2.利用spidev_test.c进行数据收发测试，在spi2的接口上插上逻辑分析仪，运行测试程序后，没有反应