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dmaengine: dw: add debug message to dwc_dostart_first_queued

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It would be useful to know when the first descriptor in the queue is started
along with its cookie.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Andy Shevchenko 2014-06-18 12:15:37 +03:00 committed by Vinod Koul
parent e7637c6c03
commit cba15617c3
1 changed files with 5 additions and 1 deletions
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6
drivers/dma/dw/core.c
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@ -281,11 +281,15 @@ static void dwc_dostart(struct dw_dma_chan *dwc, struct dw_desc *first)
static void dwc_dostart_first_queued(struct dw_dma_chan *dwc) static void dwc_dostart_first_queued(struct dw_dma_chan *dwc)
{ {
struct dw_desc *desc;
if (list_empty(&dwc->queue)) if (list_empty(&dwc->queue))
return; return;
list_move(dwc->queue.next, &dwc->active_list); list_move(dwc->queue.next, &dwc->active_list);
dwc_dostart(dwc, dwc_first_active(dwc)); desc = dwc_first_active(dwc);
dev_vdbg(chan2dev(&dwc->chan), "%s: started %u\n", __func__, desc->txd.cookie);
dwc_dostart(dwc, desc);
} }
/*----------------------------------------------------------------------*/ /*----------------------------------------------------------------------*/