OTG issues usb_phy: failed to get regulator vdd_vbus_usb:

[shodan007]

[41790.076745] otg state changed: SUSPEND --> HOST
[41790.079060] tegra USB phy - inst[0] platform info:
[41790.079974] port_otg: yes
[41790.080355] has_hostpc: yes
[41790.080681] phy_interface: USB_PHY_INTF_UTMI
[41790.081271] op_mode: TEGRA_USB_OPMODE_HOST
[41790.081700] vbus_gpio: -1
[41790.082068] hot_plug: enabled
[41790.082724] remote_wakeup: enabled
[41790.084486] usb_phy: failed to get regulator vdd_vbus_usb:-517,instance : 0
[41790.961308] healthd: battery l=46 v=3765 t=25.8 h=2 st=3 c=-348 fc=4122000 cc=70 chg=a
[41790.977514] healthd: battery l=46 v=3765 t=25.8 h=2 st=3 c=-348 fc=4122000 cc=70 chg=a
[41790.983734] healthd: battery l=46 v=3765 t=25.8 h=2 st=3 c=-348 fc=4122000 cc=70 chg=a
[41790.987624] healthd: battery l=46 v=3765 t=25.8 h=2 st=3 c=-348 fc=4122000 cc=70 chg=a
[41791.091659] healthd: battery l=46 v=3765 t=25.8 h=2 st=3 c=-348 fc=4122000 cc=70 chg=
[41791.091728] tegra-ehci tegra-ehci.0: Tegra EHCI Host Controller
[41791.091836] SELinux: initialized (dev usbfs, type usbfs), uses genfs_contexts
[41791.091900] tegra-ehci tegra-ehci.0: new USB bus registered, assigned bus number 1
[41791.096810] healthd: battery l=46 v=3765 t=25.8 h=2 st=3 c=-348 fc=4122000 cc=70 chg=
[41791.102929] healthd: battery l=46 v=3765 t=25.8 h=2 st=3 c=-348 fc=4122000 cc=70 chg=
[41791.120363] tegra-ehci tegra-ehci.0: irq 52, io mem 0x7d000000
[41791.126447] tegra-ehci tegra-ehci.0: USB 2.0 started, EHCI 1.00
[41791.126953] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[41791.127150] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[41791.127602] usb usb1: Product: Tegra EHCI Host Controller
[41791.127880] usb usb1: Manufacturer: Linux 3.4.113-g8ba25daf ehci_hcd
[41791.128215] usb usb1: SerialNumber: tegra-ehci.0
[41791.130680] hub 1-0:1.0: USB hub found
[41791.131281] hub 1-0:1.0: 1 port detected