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From: Koul, Vinod on 23 Jul 2010 00:30
> > + * @private_config: if you need to pass in specialized configuration
> > + * at runtime, apart from the generic things supported in this
> > + * struct, you provide it in this pointer and dereference it inside
> > + * your dmaengine driver to get the proper configuration bits out.
> > + *
>
> Will there be any users of this field initially, I'd just as soon
> leave it out? Like I mentioned to Vinod I think requiring
> dma_slave_config to be wrapped is a better way to extend this
> structure.
>
I was thinking of moving some of structure fields into this, but yes wrapping
this into device specific will be a better way

-Vinod
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