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mmc-host: move to dma_transfer_direction

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fixup usage of dma direction by introducing dma_transfer_direction,
this patch moves mmc drivers to use new enum

Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Chris Ball <cjb@laptop.org>
Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
This commit is contained in:
Vinod Koul
2011-10-14 10:45:11 +05:30
parent 1d0c81e876
commit 05f5799cbe
6 changed files with 31 additions and 15 deletions
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11
drivers/mmc/host/mmci.c
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@@ -372,6 +372,7 @@ static int mmci_dma_prep_data(struct mmci_host *host, struct mmc_data *data,
struct dma_chan *chan;
struct dma_device *device;
struct dma_async_tx_descriptor *desc;
enum dma_data_direction buffer_dirn;
int nr_sg;
/* Check if next job is already prepared */
@@ -385,10 +386,12 @@ static int mmci_dma_prep_data(struct mmci_host *host, struct mmc_data *data,
}
if (data->flags & MMC_DATA_READ) {
conf.direction = DMA_FROM_DEVICE;
conf.direction = DMA_DEV_TO_MEM;
buffer_dirn = DMA_FROM_DEVICE;
chan = host->dma_rx_channel;
} else {
conf.direction = DMA_TO_DEVICE;
conf.direction = DMA_MEM_TO_DEV;
buffer_dirn = DMA_TO_DEVICE;
chan = host->dma_tx_channel;
}
@@ -401,7 +404,7 @@ static int mmci_dma_prep_data(struct mmci_host *host, struct mmc_data *data,
return -EINVAL;
device = chan->device;
nr_sg = dma_map_sg(device->dev, data->sg, data->sg_len, conf.direction);
nr_sg = dma_map_sg(device->dev, data->sg, data->sg_len, buffer_dirn);
if (nr_sg == 0)
return -EINVAL;
@@ -424,7 +427,7 @@ static int mmci_dma_prep_data(struct mmci_host *host, struct mmc_data *data,
unmap_exit:
if (!next)
dmaengine_terminate_all(chan);
dma_unmap_sg(device->dev, data->sg, data->sg_len, conf.direction);
dma_unmap_sg(device->dev, data->sg, data->sg_len, buffer_dirn);
return -ENOMEM;
}