From mboxrd@z Thu Jan  1 00:00:00 1970
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Wed, 07 Jan 2015 14:22:01 +0000
Subject: Re: [PATCH] dma: rcar-hpbdma: add dma_dev->directions
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To: linux-sh@vger.kernel.org

On 01/06/2015 09:10 AM, Kuninori Morimoto wrote:
[...]
>   	dma_cap_set(DMA_SLAVE, dma_dev->cap_mask);
> +	dma_dev->directions = BIT(DMA_MEM_TO_DEV) | BIT(DMA_DEV_TO_MEM);

You should also set the other capabilities: src_addr_widths, dst_addr_widths 
and residue_granularity.

- Lars