From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: The-going <48602507+The-going@users.noreply.github.com>
Date: Mon, 24 Jan 2022 19:34:31 +0300
Subject: arm64:dts: sun50i-h5-orangepi-prime add regulator

---
 .../allwinner/sun50i-h5-orangepi-prime.dts    | 30 +++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-prime.dts b/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-prime.dts
index 998396bc0..6dc6850c1 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-prime.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-prime.dts
@@ -8,6 +8,7 @@
 
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/input/input.h>
+#include <dt-bindings/pinctrl/sun4i-a10.h>
 
 / {
 	model = "Xunlong Orange Pi Prime";
@@ -93,6 +94,10 @@ wifi_pwrseq: wifi_pwrseq {
 	};
 };
 
+&cpu0 {
+	cpu-supply = <&reg_vdd_cpux>;
+};
+
 &codec {
 	allwinner,audio-routing =
 		"Line Out", "LINEOUT",
@@ -188,6 +193,31 @@ &ohci3 {
 	status = "okay";
 };
 
+&r_i2c {
+	status = "okay";
+
+	reg_vdd_cpux: regulator@65 {
+		compatible = "silergy,sy8106a";
+		reg = <0x65>;
+		regulator-name = "vdd-cpux";
+		silergy,fixed-microvolt = <1200000>;
+		/*
+		 * The datasheet uses 1.1V as the minimum value of VDD-CPUX,
+		 * however both the Armbian DVFS table and the official one
+		 * have operating points with voltage under 1.1V, and both
+		 * DVFS table are known to work properly at the lowest
+		 * operating point.
+		 *
+		 * Use 1.0V as the minimum voltage instead.
+		 */
+		regulator-min-microvolt = <1000000>;
+		regulator-max-microvolt = <1400000>;
+		regulator-ramp-delay = <200>;
+		regulator-boot-on;
+		regulator-always-on;
+	};
+};
+
 &uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart0_pa_pins>;
-- 
2.25.1