CoolPi-Armbian-Rockchip-RK3.../arch/arm64/boot/dts/rockchip/overlay/rk3588-spi4-m1-cs0-cs1-spidev.dts

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/dts-v1/;
/plugin/;
/ {
fragment@0 {
target = <&spi4>;
__overlay__ {
status = "okay";
#address-cells = <1>;
#size-cells = <0>;
pinctrl-names = "default";
pinctrl-0 = <&spi4m1_cs0 &spi4m1_cs1 &spi4m1_pins>;
spidev@0 {
compatible = "rockchip,spidev";
status = "okay";
reg = <0>;
spi-max-frequency = <50000000>;
};
spidev@1 {
compatible = "rockchip,spidev";
status = "okay";
reg = <1>;
spi-max-frequency = <50000000>;
};
};
};
};