diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index 41647a56a9f4..a2bf9551a600 100644
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -4054,17 +4054,13 @@ static int mv_platform_probe(struct platform_device *pdev)
 				n_ports);
 			return -EINVAL;
 		}
-
-		irq = irq_of_parse_and_map(pdev->dev.of_node, 0);
 	} else {
 		mv_platform_data = dev_get_platdata(&pdev->dev);
 		n_ports = mv_platform_data->n_ports;
-		irq = platform_get_irq(pdev, 0);
 	}
+	irq = platform_get_irq(pdev, 0);
 	if (irq < 0)
 		return irq;
-	if (!irq)
-		return -EINVAL;
 
 	host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
 	hpriv = devm_kzalloc(&pdev->dev, sizeof(*hpriv), GFP_KERNEL);