/*
 * Device Tree overlay for HY28b display shield by Texy.
 * Modified for 2017 version with ILI9325 D chip
 */

/dts-v1/;
/plugin/;

/ {
	compatible = "brcm,bcm2835";

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

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

	fragment@2 {
		target = <&spidev1>;
		__overlay__ {
			status = "disabled";
		};
	};

	fragment@3 {
		target = <&gpio>;
		__overlay__ {
			hy28b_pins: hy28b_pins {
				brcm,pins = <17 25 18>;
				brcm,function = <0 1 1>; /* in out out */
			};
		};
	};

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

			hy28b: hy28b@0{
				compatible = "ilitek,ili9325";
				reg = <0>;
				pinctrl-names = "default";
				pinctrl-0 = <&hy28b_pins>;

				spi-max-frequency = <48000000>;
				spi-cpol;
				spi-cpha;
				rotate = <270>;
				bgr;
				fps = <50>;
				buswidth = <8>;
				startbyte = <0x70>;
				reset-gpios = <&gpio 25 1>;
				led-gpios = <&gpio 18 1>;

				init = <0x10000e5 0x78F0
					0x1000001 0x0100
					0x1000002 0x0700
				        0x1000003 0x1030
					0x1000004 0x0000
					0x1000008 0x0207
					0x1000009 0x0000
				        0x100000a 0x0000
					0x100000c 0x0000
					0x100000d 0x0000
					0x100000f 0x0000
				        0x1000010 0x0000
					0x1000011 0x0007
					0x1000012 0x0000
					0x1000013 0x0000
					0x1000007 0x0001
				        0x2000032
				        0x2000032
				        0x2000032
				        0x2000032
					0x1000010 0x1090
					0x1000011 0x0227
				        0x2000032
					0x1000012 0x001f
				        0x2000032
				        0x1000013 0x1500
					0x1000029 0x0027
					0x100002b 0x000d
				        0x2000032
				        0x1000020 0x0000
					0x1000021 0x0000
				        0x2000032
					0x1000030 0x0000
					0x1000031 0x0707
					0x1000032 0x0307
					0x1000035 0x0200
					0x1000036 0x0008
					0x1000037 0x0004
					0x1000038 0x0000
					0x1000039 0x0707
					0x100003c 0x0002
					0x100003d 0x1d04
					0x1000050 0x0000
				        0x1000051 0x00ef
					0x1000052 0x0000
					0x1000053 0x013f
					0x1000060 0xa700
				        0x1000061 0x0001
					0x100006a 0x0000
					0x1000080 0x0000
					0x1000081 0x0000
				        0x1000082 0x0000
					0x1000083 0x0000
					0x1000084 0x0000
					0x1000085 0x0000
				        0x1000090 0x0010
					0x1000092 0x0600
					0x1000007 0x0133>;
				debug = <0>;
			};

			hy28b_ts: hy28b-ts@1 {
				compatible = "ti,ads7846";
				reg = <1>;

				spi-max-frequency = <2000000>;
				interrupts = <17 2>; /* high-to-low edge triggered */
				interrupt-parent = <&gpio>;
				pendown-gpio = <&gpio 17 0>;
				ti,x-plate-ohms = /bits/ 16 <100>;
				ti,pressure-max = /bits/ 16 <255>;
			};
		};
	};
	__overrides__ {
		speed = 	<&hy28b>,"spi-max-frequency:0";
		rotate = 	<&hy28b>,"rotate:0";
		fps = 		<&hy28b>,"fps:0";
		debug = 	<&hy28b>,"debug:0";
		xohms =		<&hy28b_ts>,"ti,x-plate-ohms;0";
		resetgpio =	<&hy28b>,"reset-gpios:4",
				<&hy28b_pins>, "brcm,pins:4";
		ledgpio =	<&hy28b>,"led-gpios:4",
				<&hy28b_pins>, "brcm,pins:8";
	};
};