[PATCH 1/6] riscv: dts: spacemit: k1-musepi-pro: add PMIC and power infrastructure

[Andre Heider]

Enable i2c8 and add the connected SpacemiT P1 PMIC with its related regulators
for the board's power infrastructure and voltage regulation support.

Signed-off-by: Andre Heider <a.heider at gmail.com>
---
 .../riscv/boot/dts/spacemit/k1-musepi-pro.dts | 144 ++++++++++++++++++
 1 file changed, 144 insertions(+)

diff --git a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
index 29e333b670cf0..07eef3274192c 100644
--- a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
+++ b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
@@ -17,6 +17,7 @@ / {
 	aliases {
 		ethernet0 = &eth0;
 		serial0 = &uart0;
+		i2c8 = &i2c8;
 	};
 
 	chosen {
@@ -33,6 +34,25 @@ led1 {
 			default-state = "on";
 		};
 	};
+
+	reg_usb_vbus: regulator-usb-vbus {
+		compatible = "regulator-fixed";
+		regulator-name = "USBVBUS";
+		regulator-min-microvolt = <12000000>;
+		regulator-max-microvolt = <12000000>;
+		regulator-boot-on;
+		regulator-always-on;
+	};
+
+	reg_vcc_5v0_sys: regulator-vcc5v0-sys {
+		compatible = "regulator-fixed";
+		regulator-name = "VCC5V0_SYS";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		regulator-boot-on;
+		regulator-always-on;
+		vin-supply = <&reg_usb_vbus>;
+	};
 };
 
 &emmc {
@@ -72,6 +92,130 @@ &pdma {
 	status = "okay";
 };
 
+&i2c8 {
+	pinctrl-0 = <&i2c8_cfg>;
+	pinctrl-names = "default";
+	status = "okay";
+
+	pmic at 41 {
+		compatible = "spacemit,p1";
+		reg = <0x41>;
+		interrupts = <64>;
+		vin1-supply = <&reg_vcc_5v0_sys>;
+		vin2-supply = <&reg_vcc_5v0_sys>;
+		vin3-supply = <&reg_vcc_5v0_sys>;
+		vin4-supply = <&reg_vcc_5v0_sys>;
+		vin5-supply = <&reg_vcc_5v0_sys>;
+		vin6-supply = <&reg_vcc_5v0_sys>;
+		aldoin-supply = <&reg_vcc_5v0_sys>;
+		dldoin1-supply = <&buck5>;
+		dldoin2-supply = <&buck5>;
+
+		regulators {
+			buck1 {
+				regulator-min-microvolt = <500000>;
+				regulator-max-microvolt = <3450000>;
+				regulator-ramp-delay = <5000>;
+				regulator-always-on;
+			};
+
+			buck2 {
+				regulator-min-microvolt = <500000>;
+				regulator-max-microvolt = <3450000>;
+				regulator-ramp-delay = <5000>;
+				regulator-always-on;
+			};
+
+			buck3 {
+				regulator-min-microvolt = <500000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-ramp-delay = <5000>;
+				regulator-always-on;
+			};
+
+			buck4 {
+				regulator-min-microvolt = <500000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-ramp-delay = <5000>;
+				regulator-always-on;
+			};
+
+			buck5: buck5 {
+				regulator-min-microvolt = <500000>;
+				regulator-max-microvolt = <3450000>;
+				regulator-ramp-delay = <5000>;
+				regulator-always-on;
+			};
+
+			buck6 {
+				regulator-min-microvolt = <500000>;
+				regulator-max-microvolt = <3450000>;
+				regulator-ramp-delay = <5000>;
+				regulator-always-on;
+			};
+
+			aldo1 {
+				regulator-min-microvolt = <500000>;
+				regulator-max-microvolt = <3400000>;
+				regulator-boot-on;
+			};
+
+			aldo2 {
+				regulator-min-microvolt = <500000>;
+				regulator-max-microvolt = <3400000>;
+			};
+
+			aldo3 {
+				regulator-min-microvolt = <500000>;
+				regulator-max-microvolt = <3400000>;
+			};
+
+			aldo4 {
+				regulator-min-microvolt = <500000>;
+				regulator-max-microvolt = <3400000>;
+			};
+
+			dldo1 {
+				regulator-min-microvolt = <500000>;
+				regulator-max-microvolt = <3400000>;
+				regulator-boot-on;
+			};
+
+			dldo2 {
+				regulator-min-microvolt = <500000>;
+				regulator-max-microvolt = <3400000>;
+			};
+
+			dldo3 {
+				regulator-min-microvolt = <500000>;
+				regulator-max-microvolt = <3400000>;
+			};
+
+			dldo4 {
+				regulator-min-microvolt = <500000>;
+				regulator-max-microvolt = <3400000>;
+				regulator-always-on;
+			};
+
+			dldo5 {
+				regulator-min-microvolt = <500000>;
+				regulator-max-microvolt = <3400000>;
+			};
+
+			dldo6 {
+				regulator-min-microvolt = <500000>;
+				regulator-max-microvolt = <3400000>;
+				regulator-always-on;
+			};
+
+			dldo7 {
+				regulator-min-microvolt = <500000>;
+				regulator-max-microvolt = <3400000>;
+			};
+		};
+	};
+};
+
 &uart0 {
 	pinctrl-0 = <&uart0_2_cfg>;
 	pinctrl-names = "default";
-- 
2.53.0