On Wed, 27 Mar 2013, Arnd Bergmann wrote:

> This lets us use the ehci-generic driver on platforms without special
> requirements for their ehci controllers.

Well, actually the driver's name is "ehci-platform".  And the patch
lets us use it on platforms where the DMA mask hasn't been set up, as 
often happens with DT.

>  In particular, this is true
> for the vt8500/wm8x50 platforms, which currently have a separate
> driver that causes problems with multiplatform configurations.
> 
> Tested-by: Tony Prisk <li...@prisktech.co.nz>
> Tested-by: Peter Vasil <peterva...@gmail.com>
> Acked-by: Alan Stern <st...@rowland.harvard.edu>
> Signed-off-by: Arnd Bergmann <a...@arndb.de>
> ---
> v3: always set dma_mask and coherent_dma_mask when not already set,
>     rather than overriding them for any device without platform data
> v2: reset the platform data pointer on unload

The patch all looks good to me.

Alan Stern

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