libata-link: linkify reset

Make reset methods and related functions deal with ata_link instead of
ata_port.

* ata_do_reset()
* ata_eh_reset()
* all prereset/reset/postreset methods and related functions

This patch introduces no behavior change.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/ata/pata_jmicron.c b/drivers/ata/pata_jmicron.c
index 4d67f23..1619b86 100644
--- a/drivers/ata/pata_jmicron.c
+++ b/drivers/ata/pata_jmicron.c
@@ -29,7 +29,7 @@
 
 /**
  *	jmicron_pre_reset	-	check for 40/80 pin
- *	@ap: Port
+ *	@link: ATA link
  *	@deadline: deadline jiffies for the operation
  *
  *	Perform the PATA port setup we need.
@@ -39,9 +39,9 @@
  *	and setup here. We assume that has been done by init_one and the
  *	BIOS.
  */
-
-static int jmicron_pre_reset(struct ata_port *ap, unsigned long deadline)
+static int jmicron_pre_reset(struct ata_link *link, unsigned long deadline)
 {
+	struct ata_port *ap = link->ap;
 	struct pci_dev *pdev = to_pci_dev(ap->host->dev);
 	u32 control;
 	u32 control5;
@@ -103,7 +103,7 @@
 		ap->cbl = ATA_CBL_SATA;
 		break;
 	}
-	return ata_std_prereset(ap, deadline);
+	return ata_std_prereset(link, deadline);
 }
 
 /**