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dmaengine: qcom_hidma: report transfer errors with new interface

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Pass the DMA errors to the client by passing a result argument. The HW only
supports a generic error when something goes wrong. That's why, using
DMA_TRANS_ABORTED all the time.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Sinan Kaya 2016-08-31 11:10:28 -04:00 committed by Vinod Koul
parent 8a31f8b5db
commit 55c370e519
1 changed files with 8 additions and 2 deletions
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10
drivers/dma/qcom/hidma.c
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@ -126,6 +126,7 @@ static void hidma_process_completed(struct hidma_chan *mchan)
list_for_each_entry_safe(mdesc, next, &list, node) {
enum dma_status llstat;
struct dmaengine_desc_callback cb;
struct dmaengine_result result;
desc = &mdesc->desc;
@ -141,10 +142,15 @@ static void hidma_process_completed(struct hidma_chan *mchan)
spin_lock_irqsave(&mchan->lock, irqflags);
list_move(&mdesc->node, &mchan->free);
spin_unlock_irqrestore(&mchan->lock, irqflags);
if (llstat == DMA_COMPLETE)
dmaengine_desc_callback_invoke(&cb, NULL);
result.result = DMA_TRANS_NOERROR;
else
result.result = DMA_TRANS_ABORTED;
spin_unlock_irqrestore(&mchan->lock, irqflags);
dmaengine_desc_callback_invoke(&cb, &result);
}
}