Updated DT sketch for Anbernic RG35xx Plus, partly commented

rg35xx_plus_dt_update.patch

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-plus.dts b/arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-plus.dts
index e2674af0c4661..dc25bfe09fac2 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-plus.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-plus.dts
@@ -8,6 +8,7 @@
 #include "sun50i-h616.dtsi"
 
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/linux-event-codes.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 
 / {
@@ -22,6 +23,17 @@ chosen {
 		stdout-path = "serial0:115200n8";
 	};
 
+	gpio-keys {
+		compatible = "gpio-keys";
+
+		keyUP {
+			label = "Key UP";
+			gpios = <&pio 0 6 GPIO_ACTIVE_LOW>; /* PA6 */
+			linux,input-type = <EV_KEY>;
+			linux,code = <BTN_DPAD_UP>;
+		};
+	};
+
 	reg_vcc5v: vcc5v {
 		/* board wide 5V supply directly from the USB type-C input */
 		compatible = "regulator-fixed";
@@ -48,6 +60,31 @@ reg_vcc1v8: vcc1v8 {
 		regulator-max-microvolt = <1800000>;
 		regulator-always-on;
 	};
+
+	wifi_pwrseq: wifi_pwrseq {
+		compatible = "mmc-pwrseq-simple";
+		clocks = <&rtc CLK_OSC32K_FANOUT>;
+		clock-names = "ext_clock";
+//		pinctrl-0 = <&x32clk_fanout_pin>;
+//		pinctrl-names = "default";
+		reset-gpios = <&pio 6 18 GPIO_ACTIVE_LOW>; /* PG18 */
+	};
+};
+
+&cpu0 {
+	cpu-supply = <&reg_dcdc1>;
+};
+
+&cpu1 {
+	cpu-supply = <&reg_dcdc1>;
+};
+
+&cpu2 {
+	cpu-supply = <&reg_dcdc1>;
+};
+
+&cpu3 {
+	cpu-supply = <&reg_dcdc1>;
 };
 
 &ehci0 {
@@ -64,15 +101,25 @@ &mmc0 {
 
 /* SDIO WiFi RTL8821CS, powered by CLDO4, regon=PG18, hostwake=PG15 */
 &mmc1 {
-	vmmc-supply = <&reg_vcc3v3>;
+	vmmc-supply = <&reg_cldo4>;
 	vqmmc-supply = <&reg_vcc1v8>;
+	mmc-pwrseq = <&wifi_pwrseq>;
 	bus-width = <4>;
+	non-removable;
 	status = "okay";
+
+	sdio_wifi: wifi@1 {
+		reg = <1>;
+		interrupt-parent = <&pio>;
+		interrupts = <6 15 IRQ_TYPE_LEVEL_LOW>; /* PG15 */
+		interrupt-names = "host-wake";
+	};
 };
 
 /* second SD card, to be confirmed, references ALDO1 */
 &mmc2 {
 	vmmc-supply = <&reg_vcc3v3>;
+//	vmmc-supply = <&reg_aldo1>;
 	broken-cd;
 //	cd-gpios = <&pio 4 16 GPIO_ACTIVE_LOW>;  /* PE16 */
 	bus-width = <4>;
@@ -83,6 +130,63 @@ &ohci0 {
 	status = "okay";
 };
 
+&r_rsb {
+	status = "okay";
+
+	axp717: pmic@3a3 {
+		compatible = "x-powers,axp717";
+		interrupt-controller;
+		#interrupt-cells = <1>;
+		reg = <0x3a3>;
+
+		regulators {
+			reg_dcdc1: dcdc1 {
+				regulator-always-on;
+				regulator-min-microvolt = <810000>;
+				regulator-max-microvolt = <1100000>;
+				regulator-name = "vdd-cpu";
+			};
+
+			reg_dcdc2: dcdc2 {
+				regulator-always-on;
+				regulator-min-microvolt = <900000>;
+				regulator-max-microvolt = <900000>;
+				regulator-name = "vdd-sys";
+			};
+
+			reg_dcdc3: dcdc3 {
+				regulator-always-on;
+				regulator-min-microvolt = <1100000>;
+				regulator-max-microvolt = <1100000>;
+				regulator-name = "vdd-dram";
+			};
+
+			reg_aldo1: aldo1 {
+				regulator-always-on;
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+//				regulator-max-microvolt = <3300000>;
+				regulator-name = "vcc-sd2";
+			};
+
+#if 0
+			reg_bldo2: bldo2 {
+				regulator-always-on;
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-name = "vcc-1v8";
+			};
+#endif
+
+			reg_cldo4: cldo4 {
+//				regulator-min-microvolt = <3300000>;
+//				regulator-max-microvolt = <3300000>;
+				regulator-name = "vcc-wifi";
+			};
+		};
+	};
+};
+
 &uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart0_ph_pins>;