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Merge branch 'master' into for-next

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This commit is contained in:
Jiri Kosina
2010-06-16 18:08:13 +02:00
parent fd0961ff67 7e27d6e778
commit f1bbbb6912
3859 changed files with 293546 additions and 105994 deletions
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drivers/dma/at_hdmac.c
+19 -16
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@@ -760,13 +760,18 @@ err_desc_get:
return NULL;
}
static void atc_terminate_all(struct dma_chan *chan)
static int atc_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd,
unsigned long arg)
{
struct at_dma_chan *atchan = to_at_dma_chan(chan);
struct at_dma *atdma = to_at_dma(chan->device);
struct at_desc *desc, *_desc;
LIST_HEAD(list);
/* Only supports DMA_TERMINATE_ALL */
if (cmd != DMA_TERMINATE_ALL)
return -ENXIO;
/*
* This is only called when something went wrong elsewhere, so
* we don't really care about the data. Just disable the
@@ -790,32 +795,30 @@ static void atc_terminate_all(struct dma_chan *chan)
/* Flush all pending and queued descriptors */
list_for_each_entry_safe(desc, _desc, &list, desc_node)
atc_chain_complete(atchan, desc);
return 0;
}
/**
* atc_is_tx_complete - poll for transaction completion
* atc_tx_status - poll for transaction completion
* @chan: DMA channel
* @cookie: transaction identifier to check status of
* @done: if not %NULL, updated with last completed transaction
* @used: if not %NULL, updated with last used transaction
* @txstate: if not %NULL updated with transaction state
*
* If @done and @used are passed in, upon return they reflect the driver
* If @txstate is passed in, upon return it reflect the driver
* internal state and can be used with dma_async_is_complete() to check
* the status of multiple cookies without re-checking hardware state.
*/
static enum dma_status
atc_is_tx_complete(struct dma_chan *chan,
atc_tx_status(struct dma_chan *chan,
dma_cookie_t cookie,
dma_cookie_t *done, dma_cookie_t *used)
struct dma_tx_state *txstate)
{
struct at_dma_chan *atchan = to_at_dma_chan(chan);
dma_cookie_t last_used;
dma_cookie_t last_complete;
enum dma_status ret;
dev_vdbg(chan2dev(chan), "is_tx_complete: %d (d%d, u%d)\n",
cookie, done ? *done : 0, used ? *used : 0);
spin_lock_bh(&atchan->lock);
last_complete = atchan->completed_cookie;
@@ -833,10 +836,10 @@ atc_is_tx_complete(struct dma_chan *chan,
spin_unlock_bh(&atchan->lock);
if (done)
*done = last_complete;
if (used)
*used = last_used;
dma_set_tx_state(txstate, last_complete, last_used, 0);
dev_vdbg(chan2dev(chan), "tx_status: %d (d%d, u%d)\n",
cookie, last_complete ? last_complete : 0,
last_used ? last_used : 0);
return ret;
}
@@ -1082,7 +1085,7 @@ static int __init at_dma_probe(struct platform_device *pdev)
/* set base routines */
atdma->dma_common.device_alloc_chan_resources = atc_alloc_chan_resources;
atdma->dma_common.device_free_chan_resources = atc_free_chan_resources;
atdma->dma_common.device_is_tx_complete = atc_is_tx_complete;
atdma->dma_common.device_tx_status = atc_tx_status;
atdma->dma_common.device_issue_pending = atc_issue_pending;
atdma->dma_common.dev = &pdev->dev;
@@ -1092,7 +1095,7 @@ static int __init at_dma_probe(struct platform_device *pdev)
if (dma_has_cap(DMA_SLAVE, atdma->dma_common.cap_mask)) {
atdma->dma_common.device_prep_slave_sg = atc_prep_slave_sg;
atdma->dma_common.device_terminate_all = atc_terminate_all;
atdma->dma_common.device_control = atc_control;
}
dma_writel(atdma, EN, AT_DMA_ENABLE);