drv: print only on DMA error

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

drv: print only on DMA error
Signed-off-by: Federico Vaga <federico.vaga@cern.ch>
3219d260 · Federico Vaga · 5dc76e3e · 3219d260
Commit 3219d260 authored Aug 16, 2018 by Federico Vaga
Hide whitespace changes
Inline Side-by-side

Showing with 4 additions and 3 deletions

ft-irq.c kernel/ft-irq.c +4 -3

No files found.
--- a/kernel/ft-irq.c
+++ b/kernel/ft-irq.c
@@ -411,10 +411,11 @@ static irqreturn_t ft_irq_handler_dma_complete(int irq, void *dev_id)
 		return IRQ_NONE;
 	ft_iowrite(ft, irq_stat, ft->ft_dma_eic_base + TDC_EIC_REG_EIC_ISR);

-	fmc_irq_ack(fmc);
+	if (unlikely(irq_stat & DMA_EIC_EIC_ISR_DMA_ERROR))
+		dev_info(&ft->fmc->dev, "DMA interrupt ERROR %x\n",
+			 irq_stat);

-	dev_info(&ft->fmc->dev, "DMA interupt %x %x\n",
-		 ft->ft_dma_eic_base, irq_stat);
+	fmc_irq_ack(fmc);

 	return IRQ_HANDLED;
 }