I am beginning to study device tree and I have a question.
There is a drive available for the device enc28j60, an ethernet chip with spi
interface. The drive has modalias "spi:enc28j60" what is used by the old linux
device module to match with the plataform modalias.
I am including in the device tree:
fragment@1 {
target = <&spi1>;
__overlay__ {
#address-cells = <1>;
#size-cells = <0>;
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&spi1_pins_s0>;
ti,pindir-d0-out-d1-in = <1>;
spidev@1 {
spi-max-frequency = <24000000>;
reg = <0>;
compatible = "linux,spidev";
ethernet: enc28j60@0 {
compatible = "microchip,enc28j60";
};
};
};
};
but the result for modalias is "platform:[email protected]" what doesn't match with
"spi:enc28j60".
Someone can explain or point some tutorials to describe the correct way to
migrate one drive to device tree model?
Sincerely,
Ventura
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