pata_efar: support ->cable_detect

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

drivers/ata/pata_efar.c

@@ -22,10 +22,10 @@
 #include <linux/ata.h>
 
 #define DRV_NAME	"pata_efar"
-#define DRV_VERSION	"0.4.3"
+#define DRV_VERSION	"0.4.4"
 
 /**
- *	efar_pre_reset	-	check for 40/80 pin
+ *	efar_pre_reset	-	Enable bits
  *	@ap: Port
  *
  *	Perform cable detection for the EFAR ATA interface. This is
@@ -38,18 +38,11 @@ static int efar_pre_reset(struct ata_port *ap)
 		{ 0x41U, 1U, 0x80UL, 0x80UL },	/* port 0 */
 		{ 0x43U, 1U, 0x80UL, 0x80UL },	/* port 1 */
 	};
-
 	struct pci_dev *pdev = to_pci_dev(ap->host->dev);
-	u8 tmp;
 
 	if (!pci_test_config_bits(pdev, &efar_enable_bits[ap->port_no]))
 		return -ENOENT;
 
-	pci_read_config_byte(pdev, 0x47, &tmp);
-	if (tmp & (2 >> ap->port_no))
-		ap->cbl = ATA_CBL_PATA40;
-	else
-		ap->cbl = ATA_CBL_PATA80;
 	return ata_std_prereset(ap);
 }
 
@@ -66,6 +59,25 @@ static void efar_error_handler(struct ata_port *ap)
 	ata_bmdma_drive_eh(ap, efar_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
 }
 
+/**
+ *	efar_cable_detect	-	check for 40/80 pin
+ *	@ap: Port
+ *
+ *	Perform cable detection for the EFAR ATA interface. This is
+ *	different to the PIIX arrangement
+ */
+
+static int efar_cable_detect(struct ata_port *ap)
+{
+	struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+	u8 tmp;
+
+	pci_read_config_byte(pdev, 0x47, &tmp);
+	if (tmp & (2 >> ap->port_no))
+		return ATA_CBL_PATA40;
+	return ATA_CBL_PATA80;
+}
+
 /**
  *	efar_set_piomode - Initialize host controller PATA PIO timings
  *	@ap: Port whose timings we are configuring
@@ -256,6 +268,7 @@ static const struct ata_port_operations efar_ops = {
 	.thaw			= ata_bmdma_thaw,
 	.error_handler		= efar_error_handler,
 	.post_internal_cmd	= ata_bmdma_post_internal_cmd,
+	.cable_detect		= efar_cable_detect,
 
 	.bmdma_setup		= ata_bmdma_setup,
 	.bmdma_start		= ata_bmdma_start,