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mmc: sh_mmcif: map DMA buffers on the DMA engine device

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As established for the MMCI, it is proper to map the DMA buffers
on the DMA engine which is the one actually performing the DMA.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
This commit is contained in:
Linus Walleij 2011-02-10 16:09:29 +01:00 committed by Chris Ball
parent 5328906aa2
commit 1ed828dbb4
1 changed files with 8 additions and 4 deletions
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12
drivers/mmc/host/sh_mmcif.c
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@ -194,10 +194,12 @@ static void mmcif_dma_complete(void *arg)
return;
if (host->data->flags & MMC_DATA_READ)
dma_unmap_sg(&host->pd->dev, host->data->sg, host->dma_sglen,
dma_unmap_sg(host->chan_rx->device->dev,
host->data->sg, host->dma_sglen,
DMA_FROM_DEVICE);
else
dma_unmap_sg(&host->pd->dev, host->data->sg, host->dma_sglen,
dma_unmap_sg(host->chan_tx->device->dev,
host->data->sg, host->dma_sglen,
DMA_TO_DEVICE);
complete(&host->dma_complete);
@ -211,7 +213,8 @@ static void sh_mmcif_start_dma_rx(struct sh_mmcif_host *host)
dma_cookie_t cookie = -EINVAL;
int ret;
ret = dma_map_sg(&host->pd->dev, sg, host->data->sg_len, DMA_FROM_DEVICE);
ret = dma_map_sg(chan->device->dev, sg, host->data->sg_len,
DMA_FROM_DEVICE);
if (ret > 0) {
host->dma_sglen = ret;
desc = chan->device->device_prep_slave_sg(chan, sg, ret,
@ -263,7 +266,8 @@ static void sh_mmcif_start_dma_tx(struct sh_mmcif_host *host)
dma_cookie_t cookie = -EINVAL;
int ret;
ret = dma_map_sg(&host->pd->dev, sg, host->data->sg_len, DMA_TO_DEVICE);
ret = dma_map_sg(chan->device->dev, sg, host->data->sg_len,
DMA_TO_DEVICE);
if (ret > 0) {
host->dma_sglen = ret;
desc = chan->device->device_prep_slave_sg(chan, sg, ret,