/*
 * Generic Device Tree overlay for the AD2S1210 resolver to digital converter
 *
 */

/dts-v1/;
/plugin/;

#include <dt-bindings/gpio/gpio.h>

/ {
	compatible = "brcm,bcm2835";

	fragment@0 {
		target-path = "/";
		__overlay__ {
			ad2s1210_clock: ad2s1210-clk {
				compatible = "fixed-clock";
				#clock-cells = <0>;
				clock-frequency = <8192000>;
			};
		};
	};

	fragment@1 {
		target = <&spidev0>;
		__overlay__ {
			status = "disabled";
		};
	};

	fragment@2 {
		target = <&gpio>;
		__overlay__ {
			ad2s1210_resolution_pins: ad2s1210_resolution_pins {
				brcm,pins = <23 22>;
				brcm,function = <1>; /* out */
			};
			ad2s1210_sample_pins: ad2s1210_sample_pins {
				brcm,pins = <18>;
				brcm,function = <1>; /* out */
			};
		};
	};

	fragment@3 {
		target = <&gpio>;

		__overlay__ {
			ad2s1210_mode_pins: ad2s1210_mode_pins {
				brcm,pins = <25 24>;
				brcm,function = <1>; /* out */
			};
		};
	};

	fragment@4 {
		target = <&spi0>;
		__overlay__ {
			/* needed to avoid dtc warning */
			#address-cells = <1>;
			#size-cells = <0>;
			status = "okay";

			ad2s1210: ad2s1210@0 {
				compatible = "adi,ad2s1210";
				reg = <0>;
				pinctrl-names = "default";
				spi-max-frequency = <20000000>;
				spi-cpha;
				clocks = <&ad2s1210_clock>;
				sample-gpios = <&gpio 18 GPIO_ACTIVE_LOW>;
				resolution-gpios = <&gpio 23 0>, <&gpio 22 0>;
				assigned-resolution-bits = <16>;
			};
		};
	};

	fragment@5 {
		target = <&ad2s1210>;
		__overlay__ {
			pinctrl-0 = <&ad2s1210_resolution_pins>,
				    <&ad2s1210_mode_pins>,
				    <&ad2s1210_sample_pins>;
			mode-gpios = <&gpio 25 0>, <&gpio 24 0>;
		};
	};

	fragment@6 {
		target = <&ad2s1210>;
		__dormant__ {
			pinctrl-0 = <&ad2s1210_resolution_pins>,
				    <&ad2s1210_sample_pins>;
			adi,fixed-mode = "config";
		};
	};

	__overrides__ {
		cs = <&ad2s1210>,"reg:0";
		speed = <&ad2s1210>,"spi-max-frequency:0";
		resolution = <&ad2s1210>,"assigned-resolution-bits:0";
		fixed-mode = <0>,"-3-5+6";
	};
};