[PATCH] mmc: davinci: Make SDIO irq truly optional

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The following error is printed on Logic PD's DA850 EVM:
  davinci_mmc 1c40000.mmc: error -ENXIO: IRQ index 1 not found

Depending on the board, the SDIO interrupt may not be present, so use
the correct function to reflect that and prevent logging an error.

Signed-off-by: Julien Delbergue <j.delbergue.foss@xxxxxxxxx>
 drivers/mmc/host/davinci_mmc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mmc/host/davinci_mmc.c b/drivers/mmc/host/davinci_mmc.c
index 7138dfa065bf..fb686c0d171c 100644
--- a/drivers/mmc/host/davinci_mmc.c
+++ b/drivers/mmc/host/davinci_mmc.c
@@ -1257,7 +1257,7 @@ static int davinci_mmcsd_probe(struct platform_device *pdev)
 	host->use_dma = use_dma;
 	host->mmc_irq = irq;
-	host->sdio_irq = platform_get_irq(pdev, 1);
+	host->sdio_irq = platform_get_irq_optional(pdev, 1);
 	if (host->use_dma) {
 		ret = davinci_acquire_dma_channels(host);

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