AM3352: USB driver error

Hi,

I was getting the following errors on my custom board based on AM3352,
[   12.987265] am335x-phy-driver 47401300.usb-phy: 47401300.usb-phy supply vcc not found, using dummy regulator
[   12.989101] am335x-phy-driver 47401b00.usb-phy: 47401b00.usb-phy supply vcc not found, using dummy regulator
I checked that code and it says, it's due to missing regulator.

Does it mean, that my VBUS voltages of USB0 and USB1 are not regulated or something else.

Following are my DTS entries related to USB,

&usb {
        status = "okay";
};

&usb_ctrl_mod {
        status = "okay";
};

&usb0_phy {
        status = "okay";
};

&usb1_phy {
        status = "okay";
};

&usb0 {
        status = "okay";
        dr_mode = "peripheral";
};

&usb1 {
        status = "okay";
        dr_mode = "host";
};

along with this I've included the am33xx.dtsi file in my dts