waveshare35b.dts

/*
 * Device Tree overlay for waveshare 3.5inch IPS LCD
 *
 */

/dts-v1/;
/plugin/;

/ {
	compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709";

	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__ {
			waveshare35b_pins: waveshare35b_pins {
				brcm,pins = <17 25 24>;
				brcm,function = <0 0 0>; /* in in in */
			};
		};
	};

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

			waveshare35b: waveshare35b@0 {
				compatible = "ilitek,ili9486";
				reg = <0>;
				pinctrl-names = "default";
				pinctrl-0 = <&waveshare35b_pins>;

				spi-max-frequency = <15000000>;
				txbuflen = <32768>;
				rotate = <0>;
				bgr = <0>;
				fps = <30>;
				buswidth = <8>;
				regwidth = <16>;
				reset-gpios = <&gpio 25 1>;
				dc-gpios = <&gpio 24 0>;
				debug = <0>;

				init = <0x10000b0 0x0
				        0x1000011
				        0x20000ff
				        0x100003a 0x55
				        0x1000036 0x28
				        0x1000021
				        0x10000c0 0x9 0x9
				        0x10000c1 0x41 0x0
				        0x10000c5 0x0 0x36
				        0x10000e0 0x0 0x2c 0x2c 0xb 0xc 0x4 0x4c 0x64 0x36 0x3 0xe 0x1 0x10 0x1 0x0
				        0x10000e1 0xf 0x37 0x37 0xc 0xf 0x5 0x50 0x32 0x36 0x4 0xb 0x0 0x19 0x14 0xf
				        0x1000011
				        0x20000ff
				        0x1000029>;
			};

			waveshare35b_ts: waveshare35b-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 1>;
				ti,x-plate-ohms = /bits/ 16 <60>;
				touchscreen-max-pressure = <255>;
			};
		};
	};
	__overrides__ {
		speed =		<&waveshare35b>,"spi-max-frequency:0";
		txbuflen =	<&waveshare35b>,"txbuflen:0";
		rotate =	<&waveshare35b>,"rotate:0";
		fps =		<&waveshare35b>,"fps:0";
		bgr =		<&waveshare35b>,"bgr:0";
		debug =		<&waveshare35b>,"debug:0";
		invertx =   	<&waveshare35b_ts>,"touchscreen-inverted-x?";
		inverty =   	<&waveshare35b_ts>,"touchscreen-inverted-y?";
		swapxy =	<&waveshare35b_ts>,"touchscreen-swapped-x-y?";
	};
};