mfd: sdhi: require the tmio-mmc driver to bounce unaligned buffers

The SDHI controller on SH-Mobile SoCs requires even buffer addresses,
when used with DMA.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>

diff --git a/drivers/mfd/sh_mobile_sdhi.c b/drivers/mfd/sh_mobile_sdhi.c
index f1714f9..3ca20ec 100644 (file)
--- a/drivers/mfd/sh_mobile_sdhi.c
+++ b/drivers/mfd/sh_mobile_sdhi.c
@@ -136,6 +136,7 @@ static int __devinit sh_mobile_sdhi_probe(struct platform_device *pdev)
                priv->param_rx.slave_id = p->dma_slave_rx;
                priv->dma_priv.chan_priv_tx = &priv->param_tx;
                priv->dma_priv.chan_priv_rx = &priv->param_rx;
+               priv->dma_priv.alignment_shift = 1; /* 2-byte alignment */
                mmc_data->dma = &priv->dma_priv;
        }