[PATCH v3 2/8] spi: sun4i: add DMA support

[Mark Brown]

On Mon, Aug 04, 2014 at 05:09:56PM -0300, Emilio López wrote:

> +static int sun4i_spi_prepare_message(struct spi_master *master,
> +				     struct spi_message *msg)
> +{
> +	struct sun4i_spi *sspi = spi_master_get_devdata(master);
> +
> +	master->dma_rx = sspi->rx_dma_chan;
> +	master->dma_tx = sspi->tx_dma_chan;
> +
> +	return 0;
> +}

Why is this being done per transfer rather than at probe time?
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