[PATCH] dmaengine: pxa_dma: use platform_get_irq_optional

[PATCH] dmaengine: pxa_dma: use platform_get_irq_optional

[Doug Brown]

The first IRQ is required, but IRQs 1 through (nb_phy_chans - 1) are
optional, because on some platforms (e.g. PXA168) there is a single IRQ
shared between all channels.

This change inhibits a flood of "IRQ index # not found" messages at
startup. Tested on a PXA168-based device.

Fixes: 7723f4c5ecdb ("driver core: platform: Add an error message to platform_get_irq*()"
Signed-off-by: Doug Brown <doug@schmorgal.com>
---
 drivers/dma/pxa_dma.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/dma/pxa_dma.c b/drivers/dma/pxa_dma.c
index e7034f6f3994..22a392fe6d32 100644
--- a/drivers/dma/pxa_dma.c
+++ b/drivers/dma/pxa_dma.c
@@ -1247,14 +1247,14 @@ static int pxad_init_phys(struct platform_device *op,
 		return -ENOMEM;
 
 	for (i = 0; i < nb_phy_chans; i++)
-		if (platform_get_irq(op, i) > 0)
+		if (platform_get_irq_optional(op, i) > 0)
 			nr_irq++;
 
 	for (i = 0; i < nb_phy_chans; i++) {
 		phy = &pdev->phys[i];
 		phy->base = pdev->base;
 		phy->idx = i;
-		irq = platform_get_irq(op, i);
+		irq = platform_get_irq_optional(op, i);
 		if ((nr_irq > 1) && (irq > 0))
 			ret = devm_request_irq(&op->dev, irq,
 					       pxad_chan_handler,
-- 
2.25.1


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

Re: [PATCH] dmaengine: pxa_dma: use platform_get_irq_optional

[Vinod Koul]

On 05-09-22, 17:07, Doug Brown wrote:
> The first IRQ is required, but IRQs 1 through (nb_phy_chans - 1) are
> optional, because on some platforms (e.g. PXA168) there is a single IRQ
> shared between all channels.
> 
> This change inhibits a flood of "IRQ index # not found" messages at
> startup. Tested on a PXA168-based device.

Applied, thanks

-- 
~Vinod

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel