mmc: mxs-mmc: fix the dma_transfer_direction migration

The commit 05f5799 (mmc-host: move to dma_transfer_direction) left out
the DMA_NONE, in turn breaks the driver as below.

[    0.650000] mxs-mmc mxs-mmc.0: initialized
[    0.650000] mxs-mmc mxs-mmc.1: initialized
[    0.690000] mxs-dma mxs-dma-apbh: maximum bytes for sg entry exceeded: -55906
7475 > 65280
[    0.690000] mxs-mmc mxs-mmc.0: mxs_mmc_ac: failed to prep dma

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/mmc/host/mxs-mmc.c b/drivers/mmc/host/mxs-mmc.c
index 0a878b18134..94d7358187f 100644
--- a/drivers/mmc/host/mxs-mmc.c
+++ b/drivers/mmc/host/mxs-mmc.c
@@ -357,6 +357,7 @@ static void mxs_mmc_bc(struct mxs_mmc_host *host)
         host->ssp_pio_words[1] = cmd0;
         host->ssp_pio_words[2] = cmd1;
         host->dma_dir = DMA_NONE;
+        host->slave_dirn = DMA_TRANS_NONE;
         desc = mxs_mmc_prep_dma(host, 0);
         if (!desc)
                 goto out;
@@ -396,6 +397,7 @@ static void mxs_mmc_ac(struct mxs_mmc_host *host)
         host->ssp_pio_words[1] = cmd0;
         host->ssp_pio_words[2] = cmd1;
         host->dma_dir = DMA_NONE;
+        host->slave_dirn = DMA_TRANS_NONE;
         desc = mxs_mmc_prep_dma(host, 0);
         if (!desc)
                 goto out;
@@ -514,6 +516,7 @@ static void mxs_mmc_adtc(struct mxs_mmc_host *host)
         host->ssp_pio_words[1] = cmd0;
         host->ssp_pio_words[2] = cmd1;
         host->dma_dir = DMA_NONE;
+        host->slave_dirn = DMA_TRANS_NONE;
         desc = mxs_mmc_prep_dma(host, 0);
         if (!desc)
                 goto out;