ARM: dts: AM43x: Add TPS65218 device tree nodes

Add TPS65218 device tree nodes. i2c clock frequency setting
also added as part of tps65218 nodes addition. As i2c clock
enabling is required.
Signed-off-by: NKeerthy <j-keerthy@ti.com>
Reviewed-by: NFelipe Balbi <balbi@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

arch/arm/boot/dts/am43x-epos-evm.dts

@@ -323,6 +323,65 @@
 	status = "okay";
 	pinctrl-names = "default";
 	pinctrl-0 = <&i2c0_pins>;
+	clock-frequency = <400000>;
+
+	tps65218: tps65218@24 {
+		reg = <0x24>;
+		compatible = "ti,tps65218";
+		interrupts = <GIC_SPI 7 IRQ_TYPE_NONE>; /* NMIn */
+		interrupt-parent = <&gic>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+
+		dcdc1: regulator-dcdc1 {
+			compatible = "ti,tps65218-dcdc1";
+			regulator-name = "vdd_core";
+			regulator-min-microvolt = <912000>;
+			regulator-max-microvolt = <1144000>;
+			regulator-boot-on;
+			regulator-always-on;
+		};
+
+		dcdc2: regulator-dcdc2 {
+			compatible = "ti,tps65218-dcdc2";
+			regulator-name = "vdd_mpu";
+			regulator-min-microvolt = <912000>;
+			regulator-max-microvolt = <1378000>;
+			regulator-boot-on;
+			regulator-always-on;
+		};
+
+		dcdc3: regulator-dcdc3 {
+			compatible = "ti,tps65218-dcdc3";
+			regulator-name = "vdcdc3";
+			regulator-min-microvolt = <1350000>;
+			regulator-max-microvolt = <1350000>;
+			regulator-boot-on;
+			regulator-always-on;
+		};
+
+		dcdc5: regulator-dcdc5 {
+			compatible = "ti,tps65218-dcdc5";
+			regulator-name = "v1_0bat";
+			regulator-min-microvolt = <1000000>;
+			regulator-max-microvolt = <1000000>;
+		};
+
+		dcdc6: regulator-dcdc6 {
+			compatible = "ti,tps65218-dcdc6";
+			regulator-name = "v1_8bat";
+			regulator-min-microvolt = <1800000>;
+			regulator-max-microvolt = <1800000>;
+		};
+
+		ldo1: regulator-ldo1 {
+			compatible = "ti,tps65218-ldo1";
+			regulator-min-microvolt = <1800000>;
+			regulator-max-microvolt = <1800000>;
+			regulator-boot-on;
+			regulator-always-on;
+		};
+	};
 
 	at24@50 {
 		compatible = "at24,24c256";