[PATCH 1/2] arm64: dts: ti: k3-am625-beagleplay: Add required voltage supplies for OV5640

[Rishikesh Donadkar]

The device tree overlay for OV5640 requires following voltage
supplies:

AVDD-supply: Analog voltage supply, 2.8 volts
DOVDD-supply: Digital I/O voltage supply, 1.8 volts
DVDD-supply: Digital core voltage supply, 1.5 volts

Add them in the overlay.

Signed-off-by: Rishikesh Donadkar <r-donadkar at ti.com>
---
 .../ti/k3-am625-beagleplay-csi2-ov5640.dtso   | 31 +++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am625-beagleplay-csi2-ov5640.dtso b/arch/arm64/boot/dts/ti/k3-am625-beagleplay-csi2-ov5640.dtso
index 3b4643b7d19c9..000305c9e3662 100644
--- a/arch/arm64/boot/dts/ti/k3-am625-beagleplay-csi2-ov5640.dtso
+++ b/arch/arm64/boot/dts/ti/k3-am625-beagleplay-csi2-ov5640.dtso
@@ -15,6 +15,33 @@ clk_ov5640_fixed: ov5640-xclk {
 		#clock-cells = <0>;
 		clock-frequency = <12000000>;
 	};
+
+	reg_2p8v: regulator-2p8v {
+		compatible = "regulator-fixed";
+		regulator-name = "2P8V";
+		regulator-min-microvolt = <2800000>;
+		regulator-max-microvolt = <2800000>;
+		vin-supply = <&vdd_3v3>;
+		regulator-always-on;
+	};
+
+	reg_1p8v: regulator-1p8v {
+		compatible = "regulator-fixed";
+		regulator-name = "1P8V";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		vin-supply = <&vdd_3v3>;
+		regulator-always-on;
+	};
+
+	reg_1p5v: regulator-1p5v {
+		compatible = "regulator-fixed";
+		regulator-name = "1P5V";
+		regulator-min-microvolt = <1500000>;
+		regulator-max-microvolt = <1500000>;
+		vin-supply = <&vdd_3v3>;
+		regulator-always-on;
+	};
 };
 
 &main_gpio0 {
@@ -39,6 +66,10 @@ ov5640: camera at 3c {
 		clocks = <&clk_ov5640_fixed>;
 		clock-names = "xclk";
 
+		AVDD-supply = <&reg_2p8v>;
+		DOVDD-supply = <&reg_1p8v>;
+		DVDD-supply = <&reg_1p5v>;
+
 		port {
 			csi2_cam0: endpoint {
 				remote-endpoint = <&csi2rx0_in_sensor>;
-- 
2.34.1