RE: [PATCH 6/8] ARM: tegra: USB_ULPI needs USB

[Stephen Warren]

Arnd Bergmann wrote at Thursday, March 01, 2012 1:26 PM:
> On Thursday 01 March 2012, Stephen Warren wrote:
> > Alan Ott wrote at Thursday, March 01, 2012 12:27 PM:
> > > From: Arnd Bergmann <arnd@xxxxxxxx>
> > >
> > > 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.
> 
> ok.
> 
> > Would the above be better written as:
> >
> >     select USB if USB_SUPPORT
> 
> That does not look correct either. There is no reason why USB
> can't be disabled with USB_SUPPORT enabled on other platforms.
> 
> Maybe it's better to change the 'select USB_ULPI if USB_SUPPORT'
> into 'select USB_ULPI if USB' instead?

That sounds reasonable.

> Or maybe just don't select
> USB_ULPI to start with and put it into the defconfig instead.

Perhaps USB_EHCI_TEGRA should depend on USB, and select USB_EHCI?

-- 
nvpublic

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/