[PATCH] ata: sata_mv: accept 1 or 2 resources in platform probe

[Rosen Penev]

Board files in arch/arm/plat-orion, arch/arm/mach-dove,
arch/arm/mach-mv78xx0 and arch/arm/mach-orion5x still register the
"sata_mv" device with two resources (IORESOURCE_MEM plus IORESOURCE_IRQ).
Those devices are rejected with -EINVAL, so SATA no longer probes on
legacy Marvell Orion/Kirkwood-style boards.

Accept both 1 resource (DT, IRQ fetched via platform_get_irq()) and 2
resources (legacy, IRQ supplied as a second resource) so both probing
paths work.

Fixes: b3b2bec9646e ("ata: sata_mv: Fixes expected number of resources now IRQs are gone")
Assisted-by: opencode:big-pickle
Signed-off-by: Rosen Penev <rosenp@xxxxxxxxx>
---
 drivers/ata/sata_mv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index 0de4f9b8e811..d260f04e6384 100644
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -4027,7 +4027,7 @@ static int mv_platform_probe(struct platform_device *pdev)
 	/*
 	 * Simple resource validation ..
 	 */
-	if (unlikely(pdev->num_resources != 1)) {
+	if (unlikely(pdev->num_resources != 1 && pdev->num_resources != 2)) {
 		dev_err(&pdev->dev, "invalid number of resources\n");
 		return -EINVAL;
 	}
-- 
2.55.0