spi2配置spidev节点后，收发送数据没有反应的问题
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
看下 /dev/spidev2.0 有吗？
看下 /proc/device-tree/spi\@ff1e0000/status
/proc/device-tree/spi\@ff1e0000/spi_test/status
都是OK吗？ 楼主解决了吗
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