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From: Stephen Warren <swarren@nvidia.com>
To: Alan Ott <alan@signal11.us>, Russell King <linux@arm.linux.org.uk>,
        Colin Cross <ccross@android.com>, Olof Johansson <olof@lixom.net>,
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CC: Arnd Bergmann <arnd@arndb.de>
Date: Thu, 1 Mar 2012 12:05:34 -0800
Subject: RE: [PATCH 6/8] ARM: tegra: USB_ULPI needs USB
Thread-Topic: [PATCH 6/8] ARM: tegra: USB_ULPI needs USB
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Alan Ott wrote at Thursday, March 01, 2012 12:27 PM:
> From: Arnd Bergmann <arnd@arndb.de>
> 
> The USB_ULPI driver is selected by tegra, but can only be
> built if at least one of USB or USB_GADGET is enabled.
> The kernel fails to link if both are off.

> diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig
...
> @@ -10,6 +10,7 @@ config ARCH_TEGRA_2x_SOC
...
> +	select USB_GADGET if USB_SUPPORT && !USB

I don't believe the Tegra USB driver supports gadget mode at present.
Would the above be better written as:

    select USB if USB_SUPPORT

And I wonder if the Tegra EHCI driver shouldn't be doing some of these
selects, not the ARCH_TEGRA_* option.

And this is probably required for Tegra30 too not just Tegra20.

-- 
nvpublic