[V2] dmaengine: axi-dmac: assign `copy_align` property

["Ardelean, Alexandru" <Alex.Ardelean@analog.com>]

On Tue, 2019-02-26 at 10:52 +0200, Alexandru Ardelean wrote:
> The `copy_align` property is a generic property that describes alignment
> for DMA memcpy & sg ops.
> It serves mostly an informational purpose, and can be used in DMA tests,
> to
> pass the info to know what alignment to expect.
> 

build bot said this doesn't compile.
I think this patch needs to come later after some more updates have been
pushed for this driver.

> Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
> ---
> 
> Changelog v1 -> v2:
> * re-applied & moved the `copy_align` assignment; apparently it was
>   conflicting with another patch from another series
> 
>  drivers/dma/dma-axi-dmac.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/dma/dma-axi-dmac.c b/drivers/dma/dma-axi-dmac.c
> index ffc0adc2f6ce..5ec223ff7e1a 100644
> --- a/drivers/dma/dma-axi-dmac.c
> +++ b/drivers/dma/dma-axi-dmac.c
> @@ -666,6 +666,7 @@ static int axi_dmac_probe(struct platform_device
> *pdev)
>  	dma_dev->dst_addr_widths = BIT(dmac->chan.dest_width);
>  	dma_dev->directions = BIT(dmac->chan.direction);
>  	dma_dev->residue_granularity = DMA_RESIDUE_GRANULARITY_DESCRIPTOR;
> +	dma_dev->copy_align = (dmac->chan.address_align_mask + 1);
>  	INIT_LIST_HEAD(&dma_dev->channels);
>  
>  	dmac->chan.vchan.desc_free = axi_dmac_desc_free;