[PATCH V3 1/2] i2c: qup: Fix broken dma when CONFIG_DEBUG_SG is enabled

[Wolfram Sang]

>  The coherency is not dropped here. dma_map/unmap used
>  makes the buffer coherent before passing it to
>  dmaengine. Previously it was not required.
>  I can add this in description if its not clear.

Please do.

> 
>  >> @@ -1268,6 +1260,8 @@ static int qup_i2c_xfer_v2(struct i2c_adapter *adap,
> >>  		}
> >>  	}
> >>
> >> +	idx = 0;
> >> +
> >
> >This looks like an unrelated change.
>     Ha, wrong. This should have been in a separate patch.

Exactly this is what I meant with "unrelated" :)

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