Re: [PATCH v2 4/7] of/device: Set bus DMA mask as appropriate

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On Mon, Jul 23, 2018 at 11:16:09PM +0100, Robin Murphy wrote:
> When an explicit DMA limit is described by firmware, we need to remember
> it regardless of how drivers might subsequently update their devices'
> masks. The new bus_dma_mask field does that.

Looks good,

Reviewed-by: Christoph Hellwig <hch@xxxxxx>
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