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Commit f792068e authored by Alan Cox's avatar Alan Cox Committed by Jeff Garzik
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libata: cable logic 



The cable detect isolation patch inadvertently removed 40 wire short
cable handling. Put it back

Signed-off-by: default avatarAlan Cox <alan@redhat.com>
Signed-off-by: default avatarJeff Garzik <jgarzik@redhat.com>
parent 45db2f6c

drivers/ata/libata-core.c

+4 −0
Original line number Diff line number Diff line
@@ -4033,6 +4033,10 @@ static int cable_is_40wire(struct ata_port *ap) 
	/* If the controller thinks we are 80 wire, we are */

	if (ap->cbl == ATA_CBL_PATA80 || ap->cbl == ATA_CBL_SATA)

		return 0;

	/* If the system is known to be 40 wire short cable (eg laptop),

	   then we allow 80 wire modes even if the drive isn't sure */

	if (ap->cbl == ATA_CBL_PATA40_SHORT)

		return 0;

	/* If the controller doesn't know we scan



	   - Note: We look for all 40 wire detects at this point.