/dts-v1/;
#include "sun8i-a33.dtsi"
#include "sun8i-q8-common.dtsi"

/ {
	model = "Aoson M751s Q8 A33 Tablet";
	compatible = "allwinner,q8-a33", "allwinner,sun8i-a33";

	/*
	 * This is actually an active-low reset line for the WLAN
	 * part of the WiFi CHIP.
	 *
	 * Just like for DLDO1 and DLDO2, we cannot tie it to the DT
	 * node of the SDIO device for now, as there is no bindings
	 * for it, so we need to have this hack.
	 */
	wifi_reg_on: wifi_reg_on {
		compatible = "regulator-fixed";
		pinctrl-names = "default";
		pinctrl-0 = <&m751s_wifi_reg_on_pin>;

		regulator-name = "wifi-reg-on";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		regulator-always-on;
		gpio = <&r_pio 0 6 GPIO_ACTIVE_HIGH>; /* PL6 */
		enable-active-high;
	};

	mmc1_pwrseq: mmc1_pwrseq {
		compatible = "mmc-pwrseq-simple";
		pinctrl-names = "default";
		pinctrl-0 = <&m751s_wifi_reset_pin>;
		reset-gpios = <&r_pio 0 11 GPIO_ACTIVE_LOW>; /* PH9 WIFI_EN */
	};

	/*
	 * Both DLDO1 and DLDO2 are used in parallel to power up the
	 * WiFi Chip.
	 *
	 * If those are not enabled, the SDIO part will not enumerate,
	 * and since there's no way currently to pass DT infos to an
	 * SDIO device, we cannot really do better than this ugly hack
	 * for now.
	 */

	vcc_wifi: wifi_reg {
		compatible = "coupled-voltage-regulator";
		regulator-name = "vcc-wifi";
		vin0-supply = <&vcc_wifi_1>;
		vin1-supply = <&vcc_wifi_2>;
		regulator-always-on;
	};
};

&axp22x {
	regulators {
		vcc_wifi_1: dldo1 {
			regulator-min-microvolt = <3300000>;
			regulator-max-microvolt = <3300000>;
			regulator-name = "vcc-wifi-1";
			regulator-always-on;
		};

		vcc_wifi_2: dldo2 {
			regulator-min-microvolt = <3300000>;
			regulator-max-microvolt = <3300000>;
			regulator-name = "vcc-wifi-2";
			regulator-always-on;
		};
	};
};

&mmc1 {
	pinctrl-names = "default";
	pinctrl-0 = <&mmc1_pins_a>;
	vmmc-supply = <&reg_vcc3v3>;
	mmc-pwrseq = <&mmc1_pwrseq>;
	bus-width = <4>;
	non-removable;
	status = "okay";
};

&mmc1_pins_a {
	allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
};

&r_pio {
	m751s_wifi_reg_on_pin: m751s_wifi_reg_on_pin@0 {
		allwinner,pins = "PL6";
	        allwinner,function = "gpio_out";
	        allwinner,drive = <SUN4I_PINCTRL_10_MA>;
	        allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
	};
	m751s_wifi_reset_pin: m751s_wifi_reset_pin@0 {
		allwinner,pins = "PL11";
	        allwinner,function = "gpio_out";
	        allwinner,drive = <SUN4I_PINCTRL_10_MA>;
	        allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
	};
};

/*
 * FIXME for now we only support host mode and rely on u-boot to have
 * turned on Vbus which is controlled by the axp223 pmic on the board.
 *
 * Once we have axp223 support we should switch to fully supporting otg.
 */
&usb_otg {
	dr_mode = "host";
	status = "okay";
};

&usbphy {
	status = "okay";
};