arm64: dts: ti: k3-am62-verdin-dahlia: support sleep-moci

Previously, we had the sleep-moci pin set to always on. However, the
Dahlia carrier board supports disabling the sleep-moci when the system
is suspended to power down peripherals that support it. This reduces
overall power consumption. This commit adds support for this feature by
disabling the reg_force_sleep_moci regulator and adding a new regulator
for the USB hub that can be turned off when the system is suspended.
Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Link: https://lore.kernel.org/r/20240301084901.16656-3-eichest@gmail.comSigned-off-by: Nishanth Menon <nm@ti.com>

arch/arm64/boot/dts/ti/k3-am62-verdin-dahlia.dtsi

@@ -43,6 +43,15 @@ simple-audio-card,cpu {
 			sound-dai = <&mcasp0>;
 		};
 	};
+
+	reg_usb_hub: regulator-usb-hub {
+		compatible = "regulator-fixed";
+		enable-active-high;
+		/* Verdin CTRL_SLEEP_MOCI# (SODIMM 256) */
+		gpio = <&main_gpio0 31 GPIO_ACTIVE_HIGH>;
+		regulator-boot-on;
+		regulator-name = "HUB_PWR_EN";
+	};
 };
 
 /* Verdin ETHs */
@@ -184,6 +193,11 @@ &ospi0 {
 	status = "okay";
 };
 
+/* Do not force CTRL_SLEEP_MOCI# always enabled */
+&reg_force_sleep_moci {
+	status = "disabled";
+};
+
 /* Verdin SD_1 */
 &sdhci1 {
 	status = "okay";
@@ -204,7 +218,15 @@ &usbss1 {
 };
 
 &usb1 {
+	#address-cells = <1>;
+	#size-cells = <0>;
 	status = "okay";
+
+	usb-hub@1 {
+		compatible = "usb424,2744";
+		reg = <1>;
+		vdd-supply = <&reg_usb_hub>;
+	};
 };
 
 /* Verdin CTRL_WAKE1_MICO# */