Add system-wide power supplies present on all of the boards in the
Asurada family.

Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---

 .../boot/dts/mediatek/mt8192-asurada.dtsi     | 64 +++++++++++++++++++
 1 file changed, 64 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi b/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
index e10636298639..5cb7580a13cf 100644
--- a/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
@@ -19,6 +19,70 @@ memory@40000000 {
 		device_type = "memory";
 		reg = <0 0x40000000 0 0x80000000>;
 	};
+
+	/* system wide LDO 1.8V power rail */
+	pp1800_ldo_g: pp1800-ldo-g {
+		compatible = "regulator-fixed";
+		regulator-name = "pp1800_ldo_g";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		vin-supply = <&pp3300_g>;
+	};
+
+	/* system wide switching 3.3V power rail */
+	pp3300_g: pp3300-g {
+		compatible = "regulator-fixed";
+		regulator-name = "pp3300_g";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		vin-supply = <&ppvar_sys>;
+	};
+
+	/* system wide LDO 3.3V power rail */
+	pp3300_ldo_z: pp3300-ldo-z {
+		compatible = "regulator-fixed";
+		regulator-name = "pp3300_ldo_z";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		vin-supply = <&ppvar_sys>;
+	};
+
+	/* separately switched 3.3V power rail */
+	pp3300_u: pp3300-u {
+		compatible = "regulator-fixed";
+		regulator-name = "pp3300_u";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		/* enable pin wired to GPIO controlled by EC */
+		vin-supply = <&pp3300_g>;
+	};
+
+	/* system wide switching 5.0V power rail */
+	pp5000_a: pp5000-a {
+		compatible = "regulator-fixed";
+		regulator-name = "pp5000_a";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		vin-supply = <&ppvar_sys>;
+	};
+
+	/* system wide semi-regulated power rail from battery or USB */
+	ppvar_sys: ppvar-sys {
+		compatible = "regulator-fixed";
+		regulator-name = "ppvar_sys";
+		regulator-always-on;
+		regulator-boot-on;
+	};
 };
 
 &pio {
-- 
2.35.1