commit 7d73a363dea186a864f6295bbe842da8044d42cd
author Alan Cox <alan@lxorguk.ukuu.org.uk> Thu Jul 26 18:38:06 2007 +0100
committer Jeff Garzik <jeff@garzik.org> Fri Oct 12 14:55:34 2007 -0400
tree 42f98fd78c48a174780daf800c91e2dadc00628c
parent e708eb9bc0515f36d77477877e74b6b9056b5879

libata pata_via: ACPI checks for 80wire cable

Testing this on the VIA boards fixes several problems with otherwise
undetectable SATA bridge chips

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

drivers/ata/pata_via.c

diff --git a/drivers/ata/pata_via.c b/drivers/ata/pata_via.c
index 4ddcae8..f11b87e 100644
--- a/drivers/ata/pata_via.c
+++ b/drivers/ata/pata_via.c
@@ -184,6 +184,9 @@
 	   two drives */
 	if (ata66 & (0x10100000 >> (16 * ap->port_no)))
 		return ATA_CBL_PATA80;
+	/* Check with ACPI so we can spot BIOS reported SATA bridges */
+	if (ata_acpi_cbl_80wire(ap))
+		return ATA_CBL_PATA80;
 	return ATA_CBL_PATA40;
 }