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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2014-06-18 11:15:37 +0200 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2014-07-15 18:44:29 +0200 |
| commit | cba15617c37cc6082c286c2a272202565f62e7bc (patch) | |
| tree | cfb2c1ae7d1088f4b04f3d284be7680b5a74b541 /drivers/dma/dw | |
| parent | dmaengine: dw: introduce dwc_dostart_first_queued() helper (diff) | |
| download | linux-cba15617c37cc6082c286c2a272202565f62e7bc.tar.xz linux-cba15617c37cc6082c286c2a272202565f62e7bc.zip | |
dmaengine: dw: add debug message to dwc_dostart_first_queued
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>
Diffstat (limited to 'drivers/dma/dw')
| -rw-r--r-- | drivers/dma/dw/core.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/dma/dw/core.c b/drivers/dma/dw/core.c index 5ddf5e4c1222..52815b905b7c 100644 --- a/drivers/dma/dw/core.c +++ b/drivers/dma/dw/core.c @@ -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) { + struct dw_desc *desc; + if (list_empty(&dwc->queue)) return; 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); } /*----------------------------------------------------------------------*/ |