arm64: dts: mediatek: cherry: Enable MT6360 sub-pmic on I2C7

All devices of the Cherry platform have a MT6360 sub-pmic,
providing two LDOs. Add the required node to enable the PMIC
but without regulators yet, as these will be added in a
later commit.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Link: https://lore.kernel.org/r/20220704101321.44835-10-angelogioacchino.delregno@collabora.comSigned-off-by: Matthias Brugger <matthias.bgg@gmail.com>

arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi

@@ -161,6 +161,18 @@ &i2c7 {
 	clock-frequency = <400000>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&i2c7_pins>;
+
+	pmic@34 {
+		#interrupt-cells = <1>;
+		compatible = "mediatek,mt6360";
+		reg = <0x34>;
+		interrupt-controller;
+		interrupts-extended = <&pio 130 IRQ_TYPE_EDGE_FALLING>;
+		interrupt-names = "IRQB";
+		pinctrl-names = "default";
+		pinctrl-0 = <&subpmic_default>;
+		wakeup-source;
+	};
 };
 
 &mmc0 {
@@ -558,6 +570,14 @@ pins-miso {
 			bias-pull-down;
 		};
 	};
+
+	subpmic_default: subpmic-default-pins {
+		subpmic_pin_irq: pins-subpmic-int-n {
+			pinmux = <PINMUX_GPIO130__FUNC_GPIO130>;
+			input-enable;
+			bias-pull-up;
+		};
+	};
 };
 
 &pmic {