ide: add ->port_init_devs method to ide_hwif_t

* Add ->port_init_devs method to ide_hwif_t for a host specific
  initialization of devices on a port.  Call the new method from
  ide_port_init_devices().

* Convert ht6560b, qd65xx and opti621 host drivers to use the new
  ->port_init_devs method.

There should be no functionality changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

drivers/ide/ide-probe.c

@@ -1305,6 +1305,9 @@ static void ide_port_init_devices(ide_hwif_t *hwif)
 		if ((hwif->host_flags & IDE_HFLAG_NO_AUTOTUNE) == 0)
 			drive->autotune = 1;
 	}
+
+	if (hwif->port_init_devs)
+		hwif->port_init_devs(hwif);
 }
 
 static void ide_init_port(ide_hwif_t *hwif, unsigned int port,

drivers/ide/legacy/ht6560b.c

@@ -300,6 +300,18 @@ static void ht6560b_set_pio_mode(ide_drive_t *drive, const u8 pio)
 #endif
 }
 
+static void __init ht6560b_port_init_devs(ide_hwif_t *hwif)
+{
+	/* Setting default configurations for drives. */
+	int t = (HT_CONFIG_DEFAULT << 8) | HT_TIMING_DEFAULT;
+
+	if (hwif->channel)
+		t |= (HT_SECONDARY_IF << 8);
+
+	hwif->drives[0].drive_data = t;
+	hwif->drives[1].drive_data = t;
+}
+
 int probe_ht6560b = 0;
 
 module_param_named(probe, probe_ht6560b, bool, 0);
@@ -318,7 +330,6 @@ static int __init ht6560b_init(void)
 {
 	ide_hwif_t *hwif, *mate;
 	static u8 idx[4] = { 0, 1, 0xff, 0xff };
-	int t;
 
 	if (probe_ht6560b == 0)
 		return -ENODEV;
@@ -343,17 +354,8 @@ static int __init ht6560b_init(void)
 	mate->selectproc = &ht6560b_selectproc;
 	mate->set_pio_mode = &ht6560b_set_pio_mode;
 
-	/*
+	hwif->port_init_devs = ht6560b_port_init_devs;
-	 * Setting default configurations for drives
+	mate->port_init_devs = ht6560b_port_init_devs;
-	 */
-	t = (HT_CONFIG_DEFAULT << 8);
-	t |= HT_TIMING_DEFAULT;
-	hwif->drives[0].drive_data = t;
-	hwif->drives[1].drive_data = t;
-
-	t |= (HT_SECONDARY_IF << 8);
-	mate->drives[0].drive_data = t;
-	mate->drives[1].drive_data = t;
 
 	ide_device_add(idx, &ht6560b_port_info);
 

drivers/ide/legacy/qd65xx.c

@@ -305,13 +305,33 @@ static int __init qd_testreg(int port)
  * called to setup an ata channel : adjusts attributes & links for tuning
  */
 
-static void __init qd_setup(ide_hwif_t *hwif, int base, int config,
+static void __init qd_setup(ide_hwif_t *hwif, int base, int config)
-			    unsigned int data0, unsigned int data1)
 {
 	hwif->select_data = base;
 	hwif->config_data = config;
-	hwif->drives[0].drive_data = data0;
+}
-	hwif->drives[1].drive_data = data1;
+
+static void __init qd6500_port_init_devs(ide_hwif_t *hwif)
+{
+	u8 base = hwif->select_data, config = QD_CONFIG(hwif);
+
+	hwif->drives[0].drive_data = QD6500_DEF_DATA;
+	hwif->drives[1].drive_data = QD6500_DEF_DATA;
+}
+
+static void __init qd6580_port_init_devs(ide_hwif_t *hwif)
+{
+	u16 t1, t2;
+	u8 base = hwif->select_data, config = QD_CONFIG(hwif);
+
+	if (QD_CONTROL(hwif) & QD_CONTR_SEC_DISABLED) {
+		t1 = QD6580_DEF_DATA;
+		t2 = QD6580_DEF_DATA2;
+	} else
+		t2 = t1 = hwif->channel ? QD6580_DEF_DATA2 : QD6580_DEF_DATA;
+
+	hwif->drives[0].drive_data = t1;
+	hwif->drives[1].drive_data = t2;
 }
 
 /*
@@ -396,8 +416,9 @@ static int __init qd_probe(int base)
 			return 1;
 		}
 
-		qd_setup(hwif, base, config, QD6500_DEF_DATA, QD6500_DEF_DATA);
+		qd_setup(hwif, base, config);
 
+		hwif->port_init_devs = qd6500_port_init_devs;
 		hwif->set_pio_mode = &qd6500_set_pio_mode;
 
 		idx[unit] = unit;
@@ -429,9 +450,10 @@ static int __init qd_probe(int base)
 			hwif = &ide_hwifs[unit];
 			printk(KERN_INFO "%s: qd6580: single IDE board\n",
 					 hwif->name);
-			qd_setup(hwif, base, config | (control << 8),
-				 QD6580_DEF_DATA, QD6580_DEF_DATA2);
 
+			qd_setup(hwif, base, config | (control << 8));
+
+			hwif->port_init_devs = qd6580_port_init_devs;
 			hwif->set_pio_mode = &qd6580_set_pio_mode;
 
 			idx[unit] = unit;
@@ -450,14 +472,14 @@ static int __init qd_probe(int base)
 			printk(KERN_INFO "%s&%s: qd6580: dual IDE board\n",
 					hwif->name, mate->name);
 
-			qd_setup(hwif, base, config | (control << 8),
+			qd_setup(hwif, base, config | (control << 8));
-				 QD6580_DEF_DATA, QD6580_DEF_DATA);
 
+			hwif->port_init_devs = qd6580_port_init_devs;
 			hwif->set_pio_mode = &qd6580_set_pio_mode;
 
-			qd_setup(mate, base, config | (control << 8),
+			qd_setup(mate, base, config | (control << 8));
-				 QD6580_DEF_DATA2, QD6580_DEF_DATA2);
 
+			mate->port_init_devs = qd6580_port_init_devs;
 			mate->set_pio_mode = &qd6580_set_pio_mode;
 
 			idx[0] = 0;

drivers/ide/pci/opti621.c

@@ -315,14 +315,18 @@ static void opti621_set_pio_mode(ide_drive_t *drive, const u8 pio)
 	spin_unlock_irqrestore(&opti621_lock, flags);
 }
 
+static void __devinit opti621_port_init_devs(ide_hwif_t *hwif)
+{
+	hwif->drives[0].drive_data = PIO_DONT_KNOW;
+	hwif->drives[1].drive_data = PIO_DONT_KNOW;
+}
+
 /*
  * init_hwif_opti621() is called once for each hwif found at boot.
  */
 static void __devinit init_hwif_opti621 (ide_hwif_t *hwif)
 {
-	hwif->drives[0].drive_data = PIO_DONT_KNOW;
+	hwif->port_init_devs = opti621_port_init_devs;
-	hwif->drives[1].drive_data = PIO_DONT_KNOW;
-
 	hwif->set_pio_mode = &opti621_set_pio_mode;
 }
 

include/linux/ide.h

@@ -514,6 +514,8 @@ typedef struct hwif_s {
 #if 0
 	ide_hwif_ops_t	*hwifops;
 #else
+	/* host specific initialization of devices on a port */
+	void	(*port_init_devs)(struct hwif_s *);
 	/* routine to program host for PIO mode */
 	void	(*set_pio_mode)(ide_drive_t *, const u8);
 	/* routine to program host for DMA mode */