ARM: dts: bcm2711-rpi-4-b: Add CAM1 regulator

Add a fixed regulator to model the power supply to the camera connector.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://lore.kernel.org/r/20240402000424.4650-10-laurent.pinchart@ideasonboard.com
Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>

Author: pinchartl

arch/arm/boot/dts/broadcom/bcm2711-rpi-4-b.dts

@@ -15,6 +15,13 @@
 		stdout-path = "serial1:115200n8";
 	};
 
+	cam1_reg: regulator-cam1 {
+		compatible = "regulator-fixed";
+		regulator-name = "cam1-reg";
+		enable-active-high;
+		gpio = <&expgpio 5 GPIO_ACTIVE_HIGH>;
+	};
+
 	sd_io_1v8_reg: regulator-sd-io-1v8 {
 		compatible = "regulator-gpio";
 		regulator-name = "vdd-sd-io";