USB-related build errors on Tegra in next-20130319

[Stephen Warren <swarren-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>]

Felipe,

I see the following Kconfig warnings in next-20130319:

> warning: (ARCH_TEGRA_2x_SOC && ARCH_TEGRA_3x_SOC) selects USB_ULPI which has unmet direct dependencies (USB_SUPPORT && USB_PHY && ARM)
> warning: (ARCH_TEGRA_2x_SOC && ARCH_TEGRA_3x_SOC) selects USB_ULPI_VIEWPORT which has unmet direct dependencies (USB_SUPPORT && USB_PHY && USB_ULPI)
> include/config/auto.conf:624:warning: override: ARCH_MULTIPLATFORM changes choice state
> warning: (ARCH_TEGRA_2x_SOC && ARCH_TEGRA_3x_SOC) selects USB_ULPI which has unmet direct dependencies (USB_SUPPORT && USB_PHY && ARM)
> warning: (ARCH_TEGRA_2x_SOC && ARCH_TEGRA_3x_SOC) selects USB_ULPI_VIEWPORT which has unmet direct dependencies (USB_SUPPORT && USB_PHY && USB_ULPI)

Which I believe are the cause of the following build errors:

> drivers/built-in.o: In function `controller_resume':
> drivers/usb/host/ehci-tegra.c:556: undefined reference to `tegra_usb_phy_preresume'
> drivers/usb/host/ehci-tegra.c:479: undefined reference to `tegra_ehci_phy_restore_start'
> drivers/usb/host/ehci-tegra.c:551: undefined reference to `tegra_ehci_phy_restore_end'
> drivers/usb/host/ehci-tegra.c:546: undefined reference to `tegra_ehci_phy_restore_end'
> drivers/built-in.o: In function `tegra_ehci_probe':
> drivers/usb/host/ehci-tegra.c:734: undefined reference to `tegra_usb_phy_open'
> drivers/built-in.o: In function `tegra_ehci_hub_control':
> drivers/usb/host/ehci-tegra.c:162: undefined reference to `tegra_usb_phy_postresume'
> drivers/usb/host/ehci-tegra.c:215: undefined reference to `tegra_usb_phy_preresume'
> make: *** [vmlinux] Error 1

I pointed out at least the Kconfig problems when you posted the PHY
error handling cleanup series, so I'm not sure why those patches were
applied.