Messages in this thread Patch in this message | | | From | Peter Ujfalusi <> | Subject | [PATCH v4 18/25] dmaengine: edma: Print warning when linking slots from different eDMA | Date | Thu, 24 Sep 2015 13:02:05 +0300 |
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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> --- drivers/dma/edma.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c index d759abc80bef..b0102984e98d 100644 --- a/drivers/dma/edma.c +++ b/drivers/dma/edma.c @@ -598,6 +598,9 @@ 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) -- 2.5.2
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