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dmaengine: edma: Move the pending error check into helper function

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In the ccerr interrupt handler the code checks for pending errors in the
error status registers in two different places.
Move the check out to a helper function.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Peter Ujfalusi 2015-10-14 14:43:02 +03:00 committed by Vinod Koul
parent 79ad2e383d
commit 7c3b8b3d26
1 changed files with 12 additions and 8 deletions
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20
drivers/dma/edma.c
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@ -1626,6 +1626,16 @@ static void edma_error_handler(struct edma_chan *echan)
spin_unlock(&echan->vchan.lock);
}
static inline bool edma_error_pending(struct edma_cc *ecc)
{
if (edma_read_array(ecc, EDMA_EMR, 0) ||
edma_read_array(ecc, EDMA_EMR, 1) ||
edma_read(ecc, EDMA_QEMR) || edma_read(ecc, EDMA_CCERR))
return true;
return false;
}
/* eDMA error interrupt handler */
static irqreturn_t dma_ccerr_handler(int irq, void *data)
{
@ -1640,10 +1650,7 @@ static irqreturn_t dma_ccerr_handler(int irq, void *data)
dev_vdbg(ecc->dev, "dma_ccerr_handler\n");
if ((edma_read_array(ecc, EDMA_EMR, 0) == 0) &&
(edma_read_array(ecc, EDMA_EMR, 1) == 0) &&
(edma_read(ecc, EDMA_QEMR) == 0) &&
(edma_read(ecc, EDMA_CCERR) == 0))
if (!edma_error_pending(ecc))
return IRQ_NONE;
while (1) {
@ -1698,10 +1705,7 @@ static irqreturn_t dma_ccerr_handler(int irq, void *data)
}
}
}
if ((edma_read_array(ecc, EDMA_EMR, 0) == 0) &&
(edma_read_array(ecc, EDMA_EMR, 1) == 0) &&
(edma_read(ecc, EDMA_QEMR) == 0) &&
(edma_read(ecc, EDMA_CCERR) == 0))
if (!edma_error_pending(ecc))
break;
cnt++;
if (cnt > 10)