dmaengine: edma: re-initialize dummy slot during system resume

The last param set in a transfer should always be pointing to dummy
param set in non-cyclic mode. When system wakes from low power state
EDMA PARAM slots may be reset to random values. Hence, re-initialize
dummy slot to dummy param set on system resume.

Signed-off-by: Vignesh R <[e-mail]>
Acked-by: Peter Ujfalusi <[e-mail]>
Signed-off-by: Vinod Koul <[e-mail]>

drivers/dma/edma.c

···
 	int i;
 	s8 (*queue_priority_mapping)[2];
 
+	/* re initialize dummy slot to dummy param set */
+	edma_write_slot(ecc, ecc->dummy_slot, &dummy_paramset);
+
 	queue_priority_mapping = ecc->info->queue_priority_mapping;
 
 	/* Event queue priority mapping */