[PATCH 3/3] arm64: dts: mediatek: mt8395-genio-common: add MT6360 PMIC supplies

[Louis-Alexis Eyraud <louisalexis.eyraud@collabora.com>]

The Mediatek Genio 1200-EVK board has a MT6360 PMIC, powered by the
board system power rail (VSYS) and an additional system power rail
(VSYS_BUCK).
In the board devicetree, the power supply inputs for its buck and ldo
regulators are either incorrect (LDO_VIN3) or missing (LDO_VIN1/2,
BUCK_VIN1/2).

So, add VSYS_BUCK regulator node and the proper supply inputs for this
PMIC.

Signed-off-by: Louis-Alexis Eyraud <louisalexis.eyraud@collabora.com>
---
 arch/arm64/boot/dts/mediatek/mt8395-genio-common.dtsi | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/mediatek/mt8395-genio-common.dtsi b/arch/arm64/boot/dts/mediatek/mt8395-genio-common.dtsi
index 01e153137a6f..21dbcabe5e72 100644
--- a/arch/arm64/boot/dts/mediatek/mt8395-genio-common.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8395-genio-common.dtsi
@@ -209,6 +209,14 @@ reg_vsys: regulator-vsys {
 		regulator-always-on;
 		regulator-boot-on;
 	};
+
+	reg_vsys_buck: regulator-vsys-buck {
+		compatible = "regulator-fixed";
+		regulator-name = "vsys_buck";
+		regulator-always-on;
+		regulator-boot-on;
+		vin-supply = <&reg_vsys>;
+	};
 };
 
 &adsp {
@@ -486,7 +494,11 @@ otg_vbus_regulator: usb-otg-vbus-regulator {
 
 		regulator {
 			compatible = "mediatek,mt6360-regulator";
-			LDO_VIN3-supply = <&mt6360_buck2>;
+			BUCK1_VIN-supply = <&reg_vsys>;
+			BUCK2_VIN-supply = <&reg_vsys>;
+			LDO_VIN1-supply = <&reg_vsys_buck>;
+			LDO_VIN2-supply = <&reg_vsys_buck>;
+			LDO_VIN3-supply = <&reg_vsys>;
 
 			mt6360_buck1: buck1 {
 				regulator-name = "emi_vdd2";

-- 
2.53.0