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-rw-r--r--drivers/dma/idma64.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/dma/idma64.c b/drivers/dma/idma64.c
index f4c07ad3b..af8777a1e 100644
--- a/drivers/dma/idma64.c
+++ b/drivers/dma/idma64.c
@@ -167,6 +167,10 @@ static irqreturn_t idma64_irq(int irq, void *dev)
u32 status_err;
unsigned short i;
+ /* Since IRQ may be shared, check if DMA controller is powered on */
+ if (status == GENMASK(31, 0))
+ return IRQ_NONE;
+
dev_vdbg(idma64->dma.dev, "%s: status=%#x\n", __func__, status);
/* Check if we have any interrupt from the DMA controller */