On Tue, 4 Jun 2013, Arnd Bergmann wrote:
> The three options USB_ARCH_HAS_{EHCI,OHCI,XHCI} are all well beyond
> their recommended shelf life. They have caused numerous build failures
> over the years because they are never completely correct, and with
> the move to splitting out the platform specific back-ends out of the
> driver, there is no real need for them any more. Also, the use of making
> USB_ARCH_HAS_HCD depend on it is questionable since one can always enable
> dummy_hc these days.
>
> This patch enables them unconditionally for all platforms and
> architectures, which means it is now possible to build host controller
> drivers for machines that are known not to come with this hardware,
> but that is just how we treat most other drivers.
>
> In order to minimise the impact on existing architecture code and
> defconfig files, all the Kconfig are left present for now. All platforms
> that currently do 'select USB_ARCH_HAS_*' should subsequently be changed
> not to select that. All drivers depending on USB_ARCH_HAS_HCD should
> be changed to depend on USB_SUPPORT instead.
Acked-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
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