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author | Paul Mundt <lethal@linux-sh.org> | 2010-05-24 03:52:55 +0400 |
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committer | Paul Mundt <lethal@linux-sh.org> | 2010-05-24 03:52:55 +0400 |
commit | 1f782fee18b39b9ad438ebbd82c2915a16c879ee (patch) | |
tree | f292930065e6c860714c134790ab8882680ac739 /drivers/dma/dw_dmac.c | |
parent | 8eda2f21ed9c936a54fd7bc16cbfa5ee656635c2 (diff) | |
parent | f4b87dee923342505e1ddba8d34ce9de33e75050 (diff) | |
download | linux-1f782fee18b39b9ad438ebbd82c2915a16c879ee.tar.xz |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'drivers/dma/dw_dmac.c')
-rw-r--r-- | drivers/dma/dw_dmac.c | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c index d28369f7afd2..a3991ab0d67e 100644 --- a/drivers/dma/dw_dmac.c +++ b/drivers/dma/dw_dmac.c @@ -781,13 +781,18 @@ err_desc_get: return NULL; } -static void dwc_terminate_all(struct dma_chan *chan) +static int dwc_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd, + unsigned long arg) { struct dw_dma_chan *dwc = to_dw_dma_chan(chan); struct dw_dma *dw = to_dw_dma(chan->device); struct dw_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 @@ -810,12 +815,14 @@ static void dwc_terminate_all(struct dma_chan *chan) /* Flush all pending and queued descriptors */ list_for_each_entry_safe(desc, _desc, &list, desc_node) dwc_descriptor_complete(dwc, desc); + + return 0; } static enum dma_status -dwc_is_tx_complete(struct dma_chan *chan, - dma_cookie_t cookie, - dma_cookie_t *done, dma_cookie_t *used) +dwc_tx_status(struct dma_chan *chan, + dma_cookie_t cookie, + struct dma_tx_state *txstate) { struct dw_dma_chan *dwc = to_dw_dma_chan(chan); dma_cookie_t last_used; @@ -835,10 +842,7 @@ dwc_is_tx_complete(struct dma_chan *chan, ret = dma_async_is_complete(cookie, last_complete, last_used); } - if (done) - *done = last_complete; - if (used) - *used = last_used; + dma_set_tx_state(txstate, last_complete, last_used, 0); return ret; } @@ -1338,9 +1342,9 @@ static int __init dw_probe(struct platform_device *pdev) dw->dma.device_prep_dma_memcpy = dwc_prep_dma_memcpy; dw->dma.device_prep_slave_sg = dwc_prep_slave_sg; - dw->dma.device_terminate_all = dwc_terminate_all; + dw->dma.device_control = dwc_control; - dw->dma.device_is_tx_complete = dwc_is_tx_complete; + dw->dma.device_tx_status = dwc_tx_status; dw->dma.device_issue_pending = dwc_issue_pending; dma_writel(dw, CFG, DW_CFG_DMA_EN); |