[LEDE-DEV] devicetree question

Giuseppe Lippolis giu.lippolis at gmail.com
Mon Feb 6 12:46:24 PST 2017


Hi all,
I need to describe the following hw layout in the DT for the DWR-512:


	+---------------+
	|	 si3210		|
	|				|
	|-------+-------|
	| Audio |CTRL	|	
	+---------------+
	|  PCM  | SPI	|-----------+
	+---------------+			|
		^		^				|
		|		|				|PIN1
	+---------------+		+------+
	|				|<------| GPIO |
	|		uP		|	IRQ	+------+
	+---------------+
	
Is the following dt update correct?

#include "rt5350.dtsi"
		
&pcm {
	status = "enabled";
	si3210 at 1 {
		#address-cells = <1>;
		#size-cells = <1>;
		compatible = "siliconlabs,si3210";
	}
}

&spi1 {
	status = "okay";

	si3210 at 1 {
		#address-cells = <1>;
		#size-cells = <1>;
		compatible = "siliconlabs,si3210";

		interrupt-parent = <&gpio0>;
		interrupts = <1 2>;
		irq-gpio = <&gpio0 1 2>;
				
		reg = <0>;
		spi-max-frequency = <1000000>;
	};
};

What means the last number in the interrupts and irq-gpio field?

Thanks,
Bye.




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