// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
 * Copyright (C) 2017 Icenowy Zheng <icenowy@aosc.io>
 *
 * Based on sun8i-h3-bananapi-m2-plus.dts, which is:
 *   Copyright (C) 2016 Chen-Yu Tsai <wens@csie.org>
 */

/dts-v1/;
#include "sun8i-h2-plus-bananapi-m2-zero.dts"

/ {
	model = "Banana Pi BPI-M2-Zero";
	compatible = "sinovoip,bpi-m2-zero", "allwinner,sun8i-h2-plus";

	gpio_keys {
		compatible = "gpio-keys";
		pinctrl-names = "default";

      		pinctrl-0 = <&gpio_button_0>;      
		//address-cells = <1>;
      		//size-cells = <0>;
      		//autorepeat;

		sw4 {
			label = "power";
			linux,code = <BTN_0>;
			gpios = <&r_pio 0 3 GPIO_ACTIVE_LOW>;
		};

		btn1 {
			label = "B1";
			linux,code = <BTN_1>;
			gpios = <&pio 0 1 GPIO_ACTIVE_LOW>;
		};

		btn2 {
			label = "B2";
			linux,code = <BTN_2>;
			gpios = <&pio 0 0 GPIO_ACTIVE_LOW>;
		};

		btn3 {
			label = "B3";
			linux,code = <BTN_3>;
			gpios = <&pio 0 3 GPIO_ACTIVE_LOW>;
		};
	};
};

&pio {
	__overlay__ {
		fbtft_rst: fbtft_rst {
			pins = "PA15";
			function = "gpio_out";
		};

		fbtft_dc: fbtft_dc {
			pins = "PC4";
			function = "gpio_out";
		};

		fbtft_led: fbtft_led {
			pins = "PA16";
			function = "gpio_out";
		};

		ads7846_pins: ads7846_pins {
			pins= "PA2";
			function = "irq";
		};

		spi0_cs0: spi0_cs0 {
			pins = "PC3";
			function = "gpio_out";
			output-high;
		};

		spi0_cs1: spi0_cs1 {
			pins = "PC7";
			function = "gpio_out";
			output-high;
		};

		gpio_button_0: gpio_button_0 {
			pins= "PA0", "PA1", "PA3";
			function = "irq";
			bias-pull-up;
		};

	};
};

&spi0 {
	status = "okay";
	num-cs = <2>;

	pins = "PC0", "PC1", "PC2", "PC3", "PC7";

		pinctrl-names = "default", "default";
		//pinctrl-0 = <&spi0_cs0>;
		pinctrl-1 = <&spi0_cs1>;
		cs-gpios = <0>, <&pio 2 7 0>; /* + PC7 */


/* modprobe fbtft_device custom name=rpi-display gpios=reset:15,led:16,dc:68 cs=0 speed=32000000 rotate=180 busnum=0 */
/* modprobe ads7846 model=7846 cs=1 gpio_pendown=25 speed=2000000 keep_vref_on=1 x_plate_ohms=60 pressure_max=255 x_min=200 x_max=3900 y_min=200 y_max=3900 */
/* modprobe ads7846 gpio_pendown=25 speed=2000000 keep_vref_on=1 x_plate_ohms=60 pressure_max=255 x_min=200 x_max=3900 y_min=200 y_max=3900 */

	display: rpi-display@0 {
		compatible = "fb_ili9341";
		reg = <0>;
		status = "okay";

		pinctrl-names = "default";
		pinctrl-0 = <&fbtft_rst &fbtft_dc &fbtft_led>;

		spi-max-frequency = <32000000>;
		rotate = <180>;
		bgr = <0>;
		fps = <50>;
		buswidth = <8>;
		backlight = <0>;
		readwrite = <1>;
		reset-gpios = <&pio 0 15 0>;	/* PA15, pio out */
		dc-gpios = <&pio 2 4 0>;	/* PC4, pio out */
		led-gpios = <&pio 0 16 0>;	/* PA16, pio out */
		debug = <0>;
	};

	touchscreen: ads7846@1 {
		compatible = "ti,ads7846";
		reg = <1>; /* Chip Select 1 */
		status = "okay";

		pinctrl-names = "default";
		pinctrl-0 = <&ads7846_pins>;
		spi-max-frequency = <2000000>;
		interrupt-parent = <&pio>;
		interrupts = <0 2 2>; /* PA2 IRQ_TYPE_EDGE_FALLING */
		pendown-gpio = <&pio 0 2 0>; /* PA2 */

		/* driver defaults, optional */
		ti,x-min = /bits/ 16 <200>;
		ti,x-max = /bits/ 16 <3900>;
		ti,y-min = /bits/ 16 <200>;
		ti,y-max = /bits/ 16 <3900>;
		ti,swap-xy = <0>;
		ti,pressure-min = /bits/ 16 <0>;
		ti,pressure-max = /bits/ 16 <255>;
		ti,x-plate-ohms = /bits/ 16 <60>;
		ti,debounce_max = /bits/ 16 <15000>;
		ti,debounce_tol = /bits/ 16 <65535>;
		ti,debounce_rep = /bits/ 16 <100>;
		ti,vref-delay-usecs = /bits/ 16 <450>;
		ti,keep_vref_on =  <1>;
		ti,settle_delay_usecs = /bits/ 16 <100>;
		ti,penirq-recheck-delay-usecs = /bits/ 16 <100>;
	};
};

&i2c0 {
	pinctrl-names = "default";
	pinctrl-0 = <&i2c0_pins>;
	status = "okay";
};

/*
 * EOF
 */