ARM: dts: Add cluster regulator supply properties for exynos542x/5800

Add cluster regulator supply properties as a preparation to
adding generic cpufreq-dt driver support for Exynos542x and
Exynos5800 based boards.

Cc: Doug Anderson <dianders@chromium.org>
Cc: Javier Martinez Canillas <javier@osg.samsung.com>
Cc: Andreas Faerber <afaerber@suse.de>
Cc: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>

arch/arm/boot/dts/exynos5420-arndale-octa.dts

@@ -53,6 +53,14 @@ wakeup {
 	};
 };
 
+&cpu0 {
+	cpu-supply = <&buck2_reg>;
+};
+
+&cpu4 {
+	cpu-supply = <&buck6_reg>;
+};
+
 &usbdrd_dwc3_1 {
 	dr_mode = "host";
 };

arch/arm/boot/dts/exynos5420-peach-pit.dts

@@ -144,6 +144,14 @@ &adc {
 	vdd-supply = <&ldo9_reg>;
 };
 
+&cpu0 {
+	cpu-supply = <&buck2_reg>;
+};
+
+&cpu4 {
+	cpu-supply = <&buck6_reg>;
+};
+
 &dp {
 	status = "okay";
 	pinctrl-names = "default";

arch/arm/boot/dts/exynos5420-smdk5420.dts

@@ -90,6 +90,14 @@ usb301_vbus_reg: regulator-usb301 {
 
 };
 
+&cpu0 {
+	cpu-supply = <&buck2_reg>;
+};
+
+&cpu4 {
+	cpu-supply = <&buck6_reg>;
+};
+
 &dp {
 	pinctrl-names = "default";
 	pinctrl-0 = <&dp_hpd>;

arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi

@@ -67,6 +67,14 @@ &clock_audss {
 			<19200000>;
 };
 
+&cpu0 {
+	cpu-supply = <&buck6_reg>;
+};
+
+&cpu4 {
+	cpu-supply = <&buck2_reg>;
+};
+
 &hdmi {
 	status = "okay";
 	hpd-gpio = <&gpx3 7 GPIO_ACTIVE_HIGH>;

arch/arm/boot/dts/exynos5800-peach-pi.dts

@@ -144,6 +144,14 @@ &adc {
 	vdd-supply = <&ldo9_reg>;
 };
 
+&cpu0 {
+	cpu-supply = <&buck2_reg>;
+};
+
+&cpu4 {
+	cpu-supply = <&buck6_reg>;
+};
+
 &dp {
 	status = "okay";
 	pinctrl-names = "default";