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dmaengine: edma: Print warning when linking slots from different eDMA

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Warning message in case of linking between paRAM slots in different eDMA
controllers.

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 14:42:59 +03:00 committed by Vinod Koul
parent 96f5ff0e10
commit fc014095da
1 changed files with 3 additions and 0 deletions
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3
drivers/dma/edma.c
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@ -619,6 +619,9 @@ static void edma_free_slot(struct edma_cc *ecc, unsigned slot)
*/
static void edma_link(struct edma_cc *ecc, unsigned from, unsigned to)
{
if (unlikely(EDMA_CTLR(from) != EDMA_CTLR(to)))
dev_warn(ecc->dev, "Ignoring eDMA instance for linking\n");
from = EDMA_CHAN_SLOT(from);
to = EDMA_CHAN_SLOT(to);
if (from >= ecc->num_slots || to >= ecc->num_slots)