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path: root/drivers/dma/sirf-dma.c
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Diffstat (limited to 'drivers/dma/sirf-dma.c')
-rw-r--r--drivers/dma/sirf-dma.c27
1 files changed, 9 insertions, 18 deletions
diff --git a/drivers/dma/sirf-dma.c b/drivers/dma/sirf-dma.c
index 2333810d168..434ad31174f 100644
--- a/drivers/dma/sirf-dma.c
+++ b/drivers/dma/sirf-dma.c
@@ -18,6 +18,8 @@
#include <linux/of_platform.h>
#include <linux/sirfsoc_dma.h>
+#include "dmaengine.h"
+
#define SIRFSOC_DMA_DESCRIPTORS 16
#define SIRFSOC_DMA_CHANNELS 16
@@ -59,7 +61,6 @@ struct sirfsoc_dma_chan {
struct list_head queued;
struct list_head active;
struct list_head completed;
- dma_cookie_t completed_cookie;
unsigned long happened_cyclic;
unsigned long completed_cyclic;
@@ -208,7 +209,7 @@ static void sirfsoc_dma_process_completed(struct sirfsoc_dma *sdma)
/* Free descriptors */
spin_lock_irqsave(&schan->lock, flags);
list_splice_tail_init(&list, &schan->free);
- schan->completed_cookie = last_cookie;
+ schan->chan.completed_cookie = last_cookie;
spin_unlock_irqrestore(&schan->lock, flags);
} else {
/* for cyclic channel, desc is always in active list */
@@ -258,13 +259,7 @@ static dma_cookie_t sirfsoc_dma_tx_submit(struct dma_async_tx_descriptor *txd)
/* Move descriptor to queue */
list_move_tail(&sdesc->node, &schan->queued);
- /* Update cookie */
- cookie = schan->chan.cookie + 1;
- if (cookie <= 0)
- cookie = 1;
-
- schan->chan.cookie = cookie;
- sdesc->desc.cookie = cookie;
+ cookie = dma_cookie_assign(txd);
spin_unlock_irqrestore(&schan->lock, flags);
@@ -414,16 +409,13 @@ sirfsoc_dma_tx_status(struct dma_chan *chan, dma_cookie_t cookie,
{
struct sirfsoc_dma_chan *schan = dma_chan_to_sirfsoc_dma_chan(chan);
unsigned long flags;
- dma_cookie_t last_used;
- dma_cookie_t last_complete;
+ enum dma_status ret;
spin_lock_irqsave(&schan->lock, flags);
- last_used = schan->chan.cookie;
- last_complete = schan->completed_cookie;
+ ret = dma_cookie_status(chan, cookie, txstate);
spin_unlock_irqrestore(&schan->lock, flags);
- dma_set_tx_state(txstate, last_complete, last_used, 0);
- return dma_async_is_complete(cookie, last_complete, last_used);
+ return ret;
}
static struct dma_async_tx_descriptor *sirfsoc_dma_prep_interleaved(
@@ -497,7 +489,7 @@ err_dir:
static struct dma_async_tx_descriptor *
sirfsoc_dma_prep_cyclic(struct dma_chan *chan, dma_addr_t addr,
size_t buf_len, size_t period_len,
- enum dma_transfer_direction direction)
+ enum dma_transfer_direction direction, void *context)
{
struct sirfsoc_dma_chan *schan = dma_chan_to_sirfsoc_dma_chan(chan);
struct sirfsoc_dma_desc *sdesc = NULL;
@@ -635,8 +627,7 @@ static int __devinit sirfsoc_dma_probe(struct platform_device *op)
schan = &sdma->channels[i];
schan->chan.device = dma;
- schan->chan.cookie = 1;
- schan->completed_cookie = schan->chan.cookie;
+ dma_cookie_init(&schan->chan);
INIT_LIST_HEAD(&schan->free);
INIT_LIST_HEAD(&schan->prepared);