media-center-overlay.dts

/*
 * Device Tree overlay for Media Center HAT by Pi Supply
 *
 */

/dts-v1/;
/plugin/;

/ {
	compatible = "brcm,bcm2835";

	fragment@0 {
		target = <&spi0>;
		__overlay__ {
			status = "okay";

			spidev@0{
				status = "disabled";
			};

			spidev@1{
				status = "disabled";
			};
		};
	};

	fragment@1 {
		target = <&gpio>;
		__overlay__ {
			rpi_display_pins: rpi_display_pins {
				brcm,pins = <12 23 24 25>;
				brcm,function = <1 1 1 0>; /* out out out in */
				brcm,pull = <0 0 0 2>; /* - - - up */
			};
		};
	};

	fragment@2 {
		target = <&spi0>;
		__overlay__ {
			/* needed to avoid dtc warning */
			#address-cells = <1>;
			#size-cells = <0>;

			rpidisplay: rpi-display@0{
				compatible = "ilitek,ili9341";
				reg = <0>;
				pinctrl-names = "default";
				pinctrl-0 = <&rpi_display_pins>;

				spi-max-frequency = <32000000>;
				rotate = <90>;
				bgr;
				fps = <30>;
				buswidth = <8>;
				reset-gpios = <&gpio 23 1>;
				dc-gpios = <&gpio 24 0>;
				led-gpios = <&gpio 12 0>;
				debug = <0>;
			};

			rpidisplay_ts: rpi-display-ts@1 {
				compatible = "ti,ads7846";
				reg = <1>;

				spi-max-frequency = <2000000>;
				interrupts = <25 2>; /* high-to-low edge triggered */
				interrupt-parent = <&gpio>;
				pendown-gpio = <&gpio 25 1>;
				ti,x-plate-ohms = /bits/ 16 <60>;
				ti,pressure-max = /bits/ 16 <255>;
			};
		};
	};

	fragment@3 {
		target-path = "/";
		__overlay__ {
			lirc_rpi: lirc_rpi {
				compatible = "rpi,lirc-rpi";
				pinctrl-names = "default";
				pinctrl-0 = <&lirc_pins>;
				status = "okay";

				// Override autodetection of IR receiver circuit
				// (0 = active high, 1 = active low, -1 = no override )
				rpi,sense = <0xffffffff>;

				// Software carrier
				// (0 = off, 1 = on)
				rpi,softcarrier = <1>;

				// Invert output
				// (0 = off, 1 = on)
				rpi,invert = <0>;

				// Enable debugging messages
				// (0 = off, 1 = on)
				rpi,debug = <0>;
			};
		};
	};

	fragment@4 {
		target = <&gpio>;
		__overlay__ {
			lirc_pins: lirc_pins {
				brcm,pins = <6 5>;
				brcm,function = <1 0>; // out in
				brcm,pull = <0 1>; // off down
			};
		};
	};

	__overrides__ {
		speed =     <&rpidisplay>,"spi-max-frequency:0";
		rotate =    <&rpidisplay>,"rotate:0";
		fps =       <&rpidisplay>,"fps:0";
		debug =     <&rpidisplay>,"debug:0", 
		            <&lirc_rpi>,"rpi,debug:0";
		xohms =     <&rpidisplay_ts>,"ti,x-plate-ohms;0";
		swapxy =    <&rpidisplay_ts>,"ti,swap-xy?";
		backlight = <&rpidisplay>,"led-gpios:4",
		            <&rpi_display_pins>,"brcm,pins:0";

		gpio_out_pin =  <&lirc_pins>,"brcm,pins:0";
		gpio_in_pin =   <&lirc_pins>,"brcm,pins:4";
		gpio_in_pull =  <&lirc_pins>,"brcm,pull:4";

		sense =         <&lirc_rpi>,"rpi,sense:0";
		softcarrier =   <&lirc_rpi>,"rpi,softcarrier:0";
		invert =        <&lirc_rpi>,"rpi,invert:0";
	};
};