[PATCH #upstream-fixes 2/3] pata_hpt366: fix cable detection

[Tejun Heo <tj@kernel.org>]

hpt366 is strange in that its cable detection register uses the higher
bit for master, so the testing should be 2 >> port_no instead of 1 <<
port_no.  Fix it.

Info provided by Alan Cox.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
---
 drivers/ata/pata_hpt366.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: work/drivers/ata/pata_hpt366.c
===================================================================
--- work.orig/drivers/ata/pata_hpt366.c
+++ work/drivers/ata/pata_hpt366.c
@@ -215,7 +215,7 @@ static int hpt36x_cable_detect(struct at
 	struct pci_dev *pdev = to_pci_dev(ap->host->dev);
 
 	pci_read_config_byte(pdev, 0x5A, &ata66);
-	if (ata66 & (1 << ap->port_no))
+	if (ata66 & (2 >> ap->port_no))
 		return ATA_CBL_PATA40;
 	return ATA_CBL_PATA80;
 }