pata_scc: add proper cable detection method

Use standard ata_cable_80wire() method for the cable detection,
as a bonus this allows us to use the default ->prereset method.

Acked-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Acked-by: Akira Iguchi <akira2.iguchi@toshiba.co.jp>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

drivers/ata/pata_scc.c

@@ -825,18 +825,6 @@ static unsigned int scc_data_xfer (struct ata_device *dev, unsigned char *buf,
 	return words << 1;
 }
 
-/**
- *	scc_pata_prereset - prepare for reset
- *	@ap: ATA port to be reset
- *	@deadline: deadline jiffies for the operation
- */
-
-static int scc_pata_prereset(struct ata_link *link, unsigned long deadline)
-{
-	link->ap->cbl = ATA_CBL_PATA80;
-	return ata_sff_prereset(link, deadline);
-}
-
 /**
  *	scc_postreset - standard postreset callback
  *	@ap: the target ata_port
@@ -946,7 +934,7 @@ static struct ata_port_operations scc_pata_ops = {
 	.bmdma_status		= scc_bmdma_status,
 	.sff_data_xfer		= scc_data_xfer,
 
-	.prereset		= scc_pata_prereset,
+	.cable_detect		= ata_cable_80wire,
 	.softreset		= scc_softreset,
 	.postreset		= scc_postreset,