Re: [PATCH 2/2] dmaengine: axi-dmac: Request IRQ with IRQF_SHARED

From: Lars-Peter Clausen
Date: Thu Apr 26 2018 - 12:27:25 EST


On 04/26/2018 06:12 PM, Moritz Fischer wrote:
> Request IRQ with IRQF_SHARED flag. This works since the interrupt
> handler already checks if there is an actual IRQ pending and returns
> IRQ_NONE otherwise.
>
> Signed-off-by: Moritz Fischer <mdf@xxxxxxxxxx>

Acked-by: Lars-Peter Clausen <lars@xxxxxxxxxx>

Thanks.

> ---
> drivers/dma/dma-axi-dmac.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/dma/dma-axi-dmac.c b/drivers/dma/dma-axi-dmac.c
> index 75ccedaa96d2..2bd195532882 100644
> --- a/drivers/dma/dma-axi-dmac.c
> +++ b/drivers/dma/dma-axi-dmac.c
> @@ -688,7 +688,7 @@ static int axi_dmac_probe(struct platform_device *pdev)
> goto err_unregister_device;
>
> ret = devm_request_irq(&pdev->dev, dmac->irq,
> - axi_dmac_interrupt_handler, 0,
> + axi_dmac_interrupt_handler, IRQF_SHARED,
> dev_name(&pdev->dev), dmac);
> if (ret)
> goto err_unregister_of;
>