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atmel-mci: convert to dma_request_channel and down-level dma_slave

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dma_request_channel provides an exclusive channel, so we no longer need to
pass slave data through dmaengine.

Cc: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams
2009-01-06 11:38:16 -07:00
parent 33df8ca068
commit 74465b4ff9
7 changed files with 62 additions and 159 deletions
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8
drivers/dma/dmaengine.c
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@@ -234,10 +234,6 @@ static void dma_client_chan_alloc(struct dma_client *client)
list_for_each_entry(device, &dma_device_list, global_node) {
if (dma_has_cap(DMA_PRIVATE, device->cap_mask))
continue;
/* Does the client require a specific DMA controller? */
if (client->slave && client->slave->dma_dev
&& client->slave->dma_dev != device->dev)
continue;
if (!dma_device_satisfies_mask(device, client->cap_mask))
continue;
@@ -613,10 +609,6 @@ void dma_async_client_register(struct dma_client *client)
struct dma_chan *chan;
int err;
/* validate client data */
BUG_ON(dma_has_cap(DMA_SLAVE, client->cap_mask) &&
!client->slave);
mutex_lock(&dma_list_mutex);
dmaengine_ref_count++;