1 files changed, 116 insertions, 4 deletions

diff --git a/arch/arm/boot/dts/sun8i-a23-gt90h-v4.dts b/arch/arm/boot/dts/sun8i-a23-gt90h-v4.dts
index 1aeb06c649b9..b2ce284a65a2 100644
--- a/arch/arm/boot/dts/sun8i-a23-gt90h-v4.dts
+++ b/arch/arm/boot/dts/sun8i-a23-gt90h-v4.dts
@@ -47,15 +47,26 @@
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/input/input.h>
 #include <dt-bindings/pinctrl/sun4i-a10.h>
+#include <dt-bindings/pwm/pwm.h>
 
 / {
-	model = "Allwinner GT90H Quad Core Tablet (v4)";
-	compatible = "allwinner,gt90h-v4", "allwinner,sun8i-a33";
+	model = "Allwinner GT90H Dual Core Tablet (v4)";
+	compatible = "allwinner,gt90h-v4", "allwinner,sun8i-a23";
 
 	aliases {
 		serial0 = &r_uart;
 	};
 
+	backlight: backlight {
+		compatible = "pwm-backlight";
+		pinctrl-names = "default";
+		pinctrl-0 = <&bl_en_pin_gt90h>;
+		pwms = <&pwm 0 50000 PWM_POLARITY_INVERTED>;
+		brightness-levels = <0 10 20 30 40 50 60 70 80 90 100>;
+		default-brightness-level = <8>;
+		enable-gpios = <&pio 7 6 GPIO_ACTIVE_HIGH>; /* PH6 */
+	};
+
 	chosen {
 		stdout-path = "serial0:115200n8";
 	};
@@ -106,8 +117,7 @@
 &mmc0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_gt90h>;
-	/* FIXME this really is aldo1, correct once we've pmic support */
-	vmmc-supply = <&reg_vcc3v0>;
+	vmmc-supply = <&reg_aldo1>;
 	bus-width = <4>;
 	cd-gpios = <&pio 1 4 GPIO_ACTIVE_HIGH>; /* PB4 */
 	cd-inverted;
@@ -115,6 +125,13 @@
 };
 
 &pio {
+	bl_en_pin_gt90h: bl_en_pin@0 {
+		allwinner,pins = "PH6";
+		allwinner,function = "gpio_in";
+		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
+		allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
+	};
+
 	mmc0_cd_pin_gt90h: mmc0_cd_pin@0 {
 		allwinner,pins = "PB4";
 		allwinner,function = "gpio_in";
@@ -123,12 +140,106 @@
 	};
 };
 
+&pwm {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pwm0_pins>;
+	status = "okay";
+};
+
+&r_rsb {
+	status = "okay";
+
+	axp22x: pmic@3a3 {
+		compatible = "x-powers,axp223";
+		reg = <0x3a3>;
+		interrupt-parent = <&nmi_intc>;
+		interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+		eldoin-supply = <&reg_dcdc1>;
+	};
+};
+
 &r_uart {
 	pinctrl-names = "default";
 	pinctrl-0 = <&r_uart_pins_a>;
 	status = "okay";
 };
 
+#include "axp22x.dtsi"
+
+&reg_aldo1 {
+	regulator-always-on;
+	regulator-min-microvolt = <3000000>;
+	regulator-max-microvolt = <3000000>;
+	regulator-name = "vcc-io";
+};
+
+&reg_aldo2 {
+	regulator-always-on;
+	regulator-min-microvolt = <2350000>;
+	regulator-max-microvolt = <2650000>;
+	regulator-name = "vdd-dll";
+};
+
+&reg_aldo3 {
+	regulator-always-on;
+	regulator-min-microvolt = <2700000>;
+	regulator-max-microvolt = <3300000>;
+	regulator-name = "vcc-pll-avcc";
+};
+
+&reg_dc1sw {
+	regulator-name = "vcc-lcd";
+};
+
+&reg_dc5ldo {
+	regulator-always-on;
+	regulator-min-microvolt = <900000>;
+	regulator-max-microvolt = <1400000>;
+	regulator-name = "vdd-cpus";
+};
+
+&reg_dcdc1 {
+	regulator-always-on;
+	regulator-min-microvolt = <3000000>;
+	regulator-max-microvolt = <3000000>;
+	regulator-name = "vcc-3v0";
+};
+
+&reg_dcdc2 {
+	regulator-always-on;
+	regulator-min-microvolt = <900000>;
+	regulator-max-microvolt = <1400000>;
+	regulator-name = "vdd-sys";
+};
+
+&reg_dcdc3 {
+	regulator-always-on;
+	regulator-min-microvolt = <900000>;
+	regulator-max-microvolt = <1400000>;
+	regulator-name = "vdd-cpu";
+};
+
+&reg_dcdc5 {
+	regulator-always-on;
+	regulator-min-microvolt = <1500000>;
+	regulator-max-microvolt = <1500000>;
+	regulator-name = "vcc-dram";
+};
+
+&reg_dldo1 {
+	regulator-min-microvolt = <3300000>;
+	regulator-max-microvolt = <3300000>;
+	regulator-name = "vcc-wifi";
+};
+
+&reg_rtc_ldo {
+	regulator-name = "vcc-rtc";
+};
+
+&simplefb_lcd {
+	vcc-lcd-supply = <&reg_dc1sw>;
+};
+
 /*
  * 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.
@@ -141,5 +252,6 @@
 };
 
 &usbphy {
+	usb1_vbus-supply = <&reg_dldo1>;
 	status = "okay";
 };