ide: add ide_legacy_device_add() helper

Add ide_legacy_device_add() helper for use by legacy VLB host drivers
(+ convert them to use it).

There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

drivers/ide/ide-probe.c

@@ -1633,3 +1633,35 @@ void ide_port_scan(ide_hwif_t *hwif)
 	ide_proc_port_register_devices(hwif);
 }
 EXPORT_SYMBOL_GPL(ide_port_scan);
+
+int ide_legacy_device_add(const struct ide_port_info *d)
+{
+	ide_hwif_t *hwif, *mate;
+	u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
+	hw_regs_t hw[2];
+
+	memset(&hw, 0, sizeof(hw));
+
+	ide_std_init_ports(&hw[0], 0x1f0, 0x3f6);
+	hw[0].irq = 14;
+
+	ide_std_init_ports(&hw[1], 0x170, 0x376);
+	hw[1].irq = 15;
+
+	hwif = ide_find_port();
+	if (hwif) {
+		ide_init_port_hw(hwif, &hw[0]);
+		idx[0] = hwif->index;
+	}
+
+	mate = ide_find_port();
+	if (mate) {
+		ide_init_port_hw(mate, &hw[1]);
+		idx[1] = mate->index;
+	}
+
+	ide_device_add(idx, d);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ide_legacy_device_add);

drivers/ide/legacy/ali14xx.c

@@ -205,10 +205,6 @@ static const struct ide_port_info ali14xx_port_info = {
 
 static int __init ali14xx_probe(void)
 {
-	ide_hwif_t *hwif, *mate;
-	static u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
-	hw_regs_t hw[2];
-
 	printk(KERN_DEBUG "ali14xx: base=0x%03x, regOn=0x%02x.\n",
 			  basePort, regOn);
 
@@ -218,29 +214,7 @@ static int __init ali14xx_probe(void)
 		return 1;
 	}
 
-	memset(&hw, 0, sizeof(hw));
-
-	ide_std_init_ports(&hw[0], 0x1f0, 0x3f6);
-	hw[0].irq = 14;
-
-	ide_std_init_ports(&hw[1], 0x170, 0x376);
-	hw[1].irq = 15;
-
-	hwif = ide_find_port();
-	if (hwif) {
-		ide_init_port_hw(hwif, &hw[0]);
-		idx[0] = hwif->index;
-	}
-
-	mate = ide_find_port();
-	if (mate) {
-		ide_init_port_hw(mate, &hw[1]);
-		idx[1] = mate->index;
-	}
-
-	ide_device_add(idx, &ali14xx_port_info);
-
-	return 0;
+	return ide_legacy_device_add(&ali14xx_port_info);
 }
 
 int probe_ali14xx;

drivers/ide/legacy/dtc2278.c

@@ -106,9 +106,6 @@ static const struct ide_port_info dtc2278_port_info __initdata = {
 static int __init dtc2278_probe(void)
 {
 	unsigned long flags;
-	ide_hwif_t *hwif, *mate;
-	static u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
-	hw_regs_t hw[2];
 
 	local_irq_save(flags);
 	/*
@@ -128,29 +125,7 @@ static int __init dtc2278_probe(void)
 #endif
 	local_irq_restore(flags);
 
-	memset(&hw, 0, sizeof(hw));
-
-	ide_std_init_ports(&hw[0], 0x1f0, 0x3f6);
-	hw[0].irq = 14;
-
-	ide_std_init_ports(&hw[1], 0x170, 0x376);
-	hw[1].irq = 15;
-
-	hwif = ide_find_port();
-	if (hwif) {
-		ide_init_port_hw(hwif, &hw[0]);
-		idx[0] = hwif->index;
-	}
-
-	mate = ide_find_port();
-	if (mate) {
-		ide_init_port_hw(mate, &hw[1]);
-		idx[1] = mate->index;
-	}
-
-	ide_device_add(idx, &dtc2278_port_info);
-
-	return 0;
+	return ide_legacy_device_add(&dtc2278_port_info);
 }
 
 int probe_dtc2278 = 0;

drivers/ide/legacy/ht6560b.c

@@ -346,10 +346,6 @@ static const struct ide_port_info ht6560b_port_info __initdata = {
 
 static int __init ht6560b_init(void)
 {
-	ide_hwif_t *hwif, *mate;
-	static u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
-	hw_regs_t hw[2];
-
 	if (probe_ht6560b == 0)
 		return -ENODEV;
 
@@ -364,29 +360,7 @@ static int __init ht6560b_init(void)
 		goto release_region;
 	}
 
-	memset(&hw, 0, sizeof(hw));
-
-	ide_std_init_ports(&hw[0], 0x1f0, 0x3f6);
-	hw[0].irq = 14;
-
-	ide_std_init_ports(&hw[1], 0x170, 0x376);
-	hw[1].irq = 15;
-
-	hwif = ide_find_port();
-	if (hwif) {
-		ide_init_port_hw(hwif, &hw[0]);
-		idx[0] = hwif->index;
-	}
-
-	mate = ide_find_port();
-	if (mate) {
-		ide_init_port_hw(mate, &hw[1]);
-		idx[1] = mate->index;
-	}
-
-	ide_device_add(idx, &ht6560b_port_info);
-
-	return 0;
+	return ide_legacy_device_add(&ht6560b_port_info);
 
 release_region:
 	release_region(HT_CONFIG_PORT, 1);

drivers/ide/legacy/umc8672.c

@@ -133,10 +133,7 @@ static const struct ide_port_info umc8672_port_info __initdata = {
 
 static int __init umc8672_probe(void)
 {
-	ide_hwif_t *hwif, *mate;
 	unsigned long flags;
-	static u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
-	hw_regs_t hw[2];
 
 	if (!request_region(0x108, 2, "umc8672")) {
 		printk(KERN_ERR "umc8672: ports 0x108-0x109 already in use.\n");
@@ -155,29 +152,7 @@ static int __init umc8672_probe(void)
 	umc_set_speeds(current_speeds);
 	local_irq_restore(flags);
 
-	memset(&hw, 0, sizeof(hw));
-
-	ide_std_init_ports(&hw[0], 0x1f0, 0x3f6);
-	hw[0].irq = 14;
-
-	ide_std_init_ports(&hw[1], 0x170, 0x376);
-	hw[1].irq = 15;
-
-	hwif = ide_find_port();
-	if (hwif) {
-		ide_init_port_hw(hwif, &hw[0]);
-		idx[0] = hwif->index;
-	}
-
-	mate = ide_find_port();
-	if (mate) {
-		ide_init_port_hw(mate, &hw[1]);
-		idx[1] = mate->index;
-	}
-
-	ide_device_add(idx, &umc8672_port_info);
-
-	return 0;
+	return ide_legacy_device_add(&umc8672_port_info);
 }
 
 int probe_umc8672;

include/linux/ide.h

@@ -1213,6 +1213,7 @@ void ide_undecoded_slave(ide_drive_t *);
 
 int ide_device_add_all(u8 *idx, const struct ide_port_info *);
 int ide_device_add(u8 idx[4], const struct ide_port_info *);
+int ide_legacy_device_add(const struct ide_port_info *);
 void ide_port_unregister_devices(ide_hwif_t *);
 void ide_port_scan(ide_hwif_t *);