linux/arch/arm/boot/dts/sun8i-a23-ippo-q8h-v5.dts

/*
 * Copyright 2014 Chen-Yu Tsai
 *
 * Chen-Yu Tsai <wens@csie.org>
 *
 * This file is dual-licensed: you can use it either under the terms
 * of the GPL or the X11 license, at your option. Note that this dual
 * licensing only applies to this file, and not this project as a
 * whole.
 *
 *  a) This file is free software; you can redistribute it and/or
 *     modify it under the terms of the GNU General Public License as
 *     published by the Free Software Foundation; either version 2 of the
 *     License, or (at your option) any later version.
 *
 *     This file is distributed in the hope that it will be useful,
 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *     GNU General Public License for more details.
 *
 *     You should have received a copy of the GNU General Public
 *     License along with this file; if not, write to the Free
 *     Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
 *     MA 02110-1301 USA
 *
 * Or, alternatively,
 *
 *  b) Permission is hereby granted, free of charge, to any person
 *     obtaining a copy of this software and associated documentation
 *     files (the "Software"), to deal in the Software without
 *     restriction, including without limitation the rights to use,
 *     copy, modify, merge, publish, distribute, sublicense, and/or
 *     sell copies of the Software, and to permit persons to whom the
 *     Software is furnished to do so, subject to the following
 *     conditions:
 *
 *     The above copyright notice and this permission notice shall be
 *     included in all copies or substantial portions of the Software.
 *
 *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
 *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 *     OTHER DEALINGS IN THE SOFTWARE.
 */

/dts-v1/;
#include "sun8i-a23.dtsi"
#include "sunxi-common-regulators.dtsi"

#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
#include <dt-bindings/pinctrl/sun4i-a10.h>

/ {
	model = "Ippo Q8H Dual Core Tablet (v5)";
	compatible = "ippo,q8h-v5", "allwinner,sun8i-a23";

	aliases {
		serial0 = &r_uart;
	};

	chosen {
		bootargs = "earlyprintk console=ttyS0,115200";
	};

	soc@01c00000 {
		mmc0: mmc@01c0f000 {
			pinctrl-names = "default";
			pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_q8h>;
			vmmc-supply = <&reg_vcc3v0>;
			bus-width = <4>;
			cd-gpios = <&pio 1 4 GPIO_ACTIVE_HIGH>; /* PB4 */
			cd-inverted;
			status = "okay";
		};

		pinctrl@01c20800 {
			mmc0_cd_pin_q8h: mmc0_cd_pin@0 {
				allwinner,pins = "PB4";
				allwinner,function = "gpio_in";
				allwinner,drive = <SUN4I_PINCTRL_10_MA>;
				allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
			};
		};

		lradc: lradc@01c22800 {
			vref-supply = <&reg_vcc3v0>;
			status = "okay";

			button@200 {
				label = "Volume Up";
				linux,code = <KEY_VOLUMEUP>;
				channel = <0>;
				voltage = <200000>;
			};

			button@400 {
				label = "Volume Down";
				linux,code = <KEY_VOLUMEDOWN>;
				channel = <0>;
				voltage = <400000>;
			};
		};

		i2c0: i2c@01c2ac00 {
			pinctrl-names = "default";
			pinctrl-0 = <&i2c0_pins_a>;
			status = "okay";
		};

		i2c1: i2c@01c2b000 {
			pinctrl-names = "default";
			pinctrl-0 = <&i2c1_pins_a>;
			status = "okay";
		};

		i2c2: i2c@01c2b400 {
			pinctrl-names = "default";
			pinctrl-0 = <&i2c2_pins_a>;
			/* pull-ups and devices require PMIC regulator */
			status = "failed";
		};

		r_uart: serial@01f02800 {
			pinctrl-names = "default";
			pinctrl-0 = <&r_uart_pins_a>;
			status = "okay";
		};
	};
};