ide: more IDE probing code rework

Index: b/drivers/ide/ide.c
===================================================================
@@ -791,10 +791,6 @@ int set_io_32bit(ide_drive_t *drive, int
 		return -EBUSY;
 
 	drive->io_32bit = arg;
-#ifdef CONFIG_BLK_DEV_DTC2278
-	if (HWIF(drive)->chipset == ide_dtc2278)
-		HWIF(drive)->drives[!drive->select.b.unit].io_32bit = arg;
-#endif /* CONFIG_BLK_DEV_DTC2278 */
 
 	spin_unlock_irq(&ide_lock);
 

Index: b/drivers/ide/legacy/dtc2278.c
===================================================================
@@ -84,12 +84,6 @@ static void dtc2278_set_pio_mode(ide_dri
 		/* Actually we do - there is a data sheet available for the
 		   Winbond but does anyone actually care */
 	}
-
-	/*
-	 * 32bit I/O has to be enabled for *both* drives at the same time.
-	 */
-	drive->io_32bit = 1;
-	HWIF(drive)->drives[!drive->select.b.unit].io_32bit = 1;
 }
 
 static int __init dtc2278_probe(void)

@@ -123,18 +117,24 @@ static int __init dtc2278_probe(void)
 	local_irq_restore(flags);
 
 	hwif->serialized = 1;
+	hwif->no_io_32bit = 1;	/* disallow ->io_32bit changes */
 	hwif->chipset = ide_dtc2278;
 	hwif->pio_mask = ATA_PIO4;
 	hwif->set_pio_mode = &dtc2278_set_pio_mode;
 	hwif->drives[0].no_unmask = 1;
 	hwif->drives[1].no_unmask = 1;
+	hwif->drives[0].io_32bit = 1;
+	hwif->drives[1].io_32bit = 1;
 	hwif->mate = mate;
 
 	mate->serialized = 1;
+	mate->no_io_32bit = 1;
 	mate->chipset = ide_dtc2278;
 	mate->pio_mask = ATA_PIO4;
 	mate->drives[0].no_unmask = 1;
 	mate->drives[1].no_unmask = 1;
+	mate->drives[0].io_32bit = 1;
+	mate->drives[1].io_32bit = 1;
 	mate->mate = hwif;
 	mate->channel = 1;
 

Index: b/drivers/ide/mips/au1xxx-ide.c
===================================================================
@@ -658,8 +658,7 @@ static int au_ide_probe(struct device *d
 	hwif->drives[0].autotune        = 1;    /* 1=autotune, 2=noautotune, 0=default */
 	hwif->drives[1].autotune	= 1;
 
-	hwif->drives[0].no_io_32bit	= 1;
-	hwif->drives[1].no_io_32bit	= 1;
+	hwif->no_io_32bit		= 1;
 
 	auide_hwif.hwif                 = hwif;
 	hwif->hwif_data                 = &auide_hwif;

Index: b/drivers/ide/pci/atiixp.c
===================================================================
@@ -121,6 +121,19 @@ static void atiixp_set_dma_mode(ide_driv
 	spin_unlock_irqrestore(&atiixp_lock, flags);
 }
 
+static u8 __devinit atiixp_cable_detect(ide_hwif_t *hwif)
+{
+	struct pci_dev *pdev = to_pci_dev(hwif->dev);
+	u8 udma_mode = 0, ch = hwif->channel;
+
+	pci_read_config_byte(pdev, ATIIXP_IDE_UDMA_MODE + ch, &udma_mode);
+
+	if ((udma_mode & 0x07) >= 0x04 || (udma_mode & 0x70) >= 0x40)
+		return ATA_CBL_PATA80;
+	else
+		return ATA_CBL_PATA40;
+}
+
 /**
  *	init_hwif_atiixp		-	fill in the hwif for the ATIIXP
  *	@hwif: IDE interface

@@ -131,21 +144,14 @@ static void atiixp_set_dma_mode(ide_driv
 
 static void __devinit init_hwif_atiixp(ide_hwif_t *hwif)
 {
-	struct pci_dev *pdev = to_pci_dev(hwif->dev);
-	u8 udma_mode = 0, ch = hwif->channel;
-
 	hwif->set_pio_mode = &atiixp_set_pio_mode;
 	hwif->set_dma_mode = &atiixp_set_dma_mode;
 
 	if (!hwif->dma_base)
 		return;
 
-	pci_read_config_byte(pdev, ATIIXP_IDE_UDMA_MODE + ch, &udma_mode);
-
-	if ((udma_mode & 0x07) >= 0x04 || (udma_mode & 0x70) >= 0x40)
-		hwif->cbl = ATA_CBL_PATA80;
-	else
-		hwif->cbl = ATA_CBL_PATA40;
+	if (hwif->cbl != ATA_CBL_PATA40_SHORT)
+		hwif->cbl = atiixp_cable_detect(hwif);
 }
 
 static const struct ide_port_info atiixp_pci_info[] __devinitdata = {

Index: b/drivers/ide/pci/cs5535.c
===================================================================
@@ -155,8 +155,9 @@ static void cs5535_set_pio_mode(ide_driv
 	cs5535_set_speed(drive, XFER_PIO_0 + pio);
 }
 
-static u8 __devinit cs5535_cable_detect(struct pci_dev *dev)
+static u8 __devinit cs5535_cable_detect(ide_hwif_t *hwif)
 {
+	struct pci_dev *dev = to_pci_dev(hwif->dev);
 	u8 bit;
 
 	/* if a 80 wire cable was detected */

@@ -175,15 +176,14 @@ static u8 __devinit cs5535_cable_detect(
  */
 static void __devinit init_hwif_cs5535(ide_hwif_t *hwif)
 {
-	struct pci_dev *dev = to_pci_dev(hwif->dev);
-
 	hwif->set_pio_mode = &cs5535_set_pio_mode;
 	hwif->set_dma_mode = &cs5535_set_dma_mode;
 
 	if (hwif->dma_base == 0)
 		return;
 
-	hwif->cbl = cs5535_cable_detect(dev);
+	if (hwif->cbl != ATA_CBL_PATA40_SHORT)
+		hwif->cbl = cs5535_cable_detect(hwif);
 }
 
 static const struct ide_port_info cs5535_chipset __devinitdata = {

Index: b/drivers/ide/pci/scc_pata.c
===================================================================
@@ -644,6 +644,11 @@ static void __devinit init_iops_scc(ide_
 	init_mmio_iops_scc(hwif);
 }
 
+static u8 __devinit scc_cable_detect(ide_hwif_t *hwif)
+{
+	return ATA_CBL_PATA80;
+}
+
 /**
  *	init_hwif_scc	-	set up hwif
  *	@hwif: interface to set up

@@ -678,8 +683,8 @@ static void __devinit init_hwif_scc(ide_
 	else
 		hwif->ultra_mask = ATA_UDMA5; /* 100MHz */
 
-	/* we support 80c cable only. */
-	hwif->cbl = ATA_CBL_PATA80;
+	if (hwif->cbl != ATA_CBL_PATA40_SHORT)
+		hwif->cbl = scc_cable_detect(hwif);
 }
 
 #define DECLARE_SCC_DEV(name_str)			\

Index: b/drivers/ide/legacy/macide.c
===================================================================
@@ -123,16 +123,6 @@ static int __init macide_init(void)
 		ide_init_port_data(hwif, index);
 		ide_init_port_hw(hwif, &hw);
 
-		if (macintosh_config->ide_type == MAC_IDE_BABOON &&
-		    macintosh_config->ident == MAC_MODEL_PB190) {
-			/* Fix breakage in ide-disk.c: drive capacity	*/
-			/* is not initialized for drives without a 	*/
-			/* hardware ID, and we can't get that without	*/
-			/* probing the drive which freezes a 190.	*/
-			ide_drive_t *drive = &hwif->drives[0];
-			drive->capacity64 = drive->cyl*drive->head*drive->sect;
-		}
-
 		hwif->mmio = 1;
 
 		ide_device_add(idx);

Index: b/drivers/ide/setup-pci.c
===================================================================
@@ -556,10 +556,15 @@ void ide_pci_setup_ports(struct pci_dev 
 			hwif->drives[1].unmask = 1;
 		}
 
-		if (hwif->dma_base) {
-			hwif->swdma_mask = d->swdma_mask;
-			hwif->mwdma_mask = d->mwdma_mask;
-			hwif->ultra_mask = d->udma_mask;
+		hwif->swdma_mask = d->swdma_mask;
+		hwif->mwdma_mask = d->mwdma_mask;
+		hwif->ultra_mask = d->udma_mask;
+
+		if ((d->host_flags && IDE_HFLAG_NO_DMA) == 0 &&
+		    hwif->dma_base == 0) {
+			hwif->swdma_mask = 0;
+			hwif->mwdma_mask = 0;
+			hwif->ultra_mask = 0;
 		}
 
 		hwif->drives[0].autotune = 1;

Index: b/drivers/ide/setup-pci.c
===================================================================
@@ -337,7 +337,8 @@ static int ide_pci_check_iomem(struct pc
  *	ide_hwif_configure	-	configure an IDE interface
  *	@dev: PCI device holding interface
  *	@d: IDE port info
- *	@mate: Paired interface if any
+ *	@port: port number
+ *	@irq: PCI IRQ
  *
  *	Perform the initial set up for the hardware interface structure. This
  *	is done per interface port rather than per PCI device. There may be

@@ -346,7 +347,9 @@ static int ide_pci_check_iomem(struct pc
  *	Returns the new hardware interface structure, or NULL on a failure
  */
 
-static ide_hwif_t *ide_hwif_configure(struct pci_dev *dev, const struct ide_port_info *d, ide_hwif_t *mate, int port, int irq)
+static ide_hwif_t *ide_hwif_configure(struct pci_dev *dev,
+				      const struct ide_port_info *d,
+				      unsigned int port, int irq)
 {
 	unsigned long ctl = 0, base = 0;
 	ide_hwif_t *hwif;

@@ -392,12 +395,7 @@ static ide_hwif_t *ide_hwif_configure(st
 
 	hwif->dev = &dev->dev;
 	hwif->cds = d;
-	hwif->channel = port;
 
-	if (mate) {
-		hwif->mate = mate;
-		mate->mate = hwif;
-	}
 	return hwif;
 }
 

@@ -525,10 +523,25 @@ void ide_pci_setup_ports(struct pci_dev 
 			continue;	/* port not enabled */
 		}
 
-		if ((hwif = ide_hwif_configure(dev, d, mate, port, pciirq)) == NULL)
+		hwif = ide_hwif_configure(dev, d, port, pciirq);
+		if (hwif == NULL)
 			continue;
 
 		*(idx + port) = hwif->index;
+	}
+
+	for (port = 0; port < channels; ++port) {
+		if (*(idx + port) == 0xff)
+			continue;
+
+		hwif = &ide_hwifs[*(idx + port)];
+
+		if (mate) {
+			hwif->mate = mate;
+			mate->mate = hwif;
+		}
+
+		hwif->channel = port;
 
 		if (d->init_iops)
 			d->init_iops(hwif);

Index: b/drivers/ide/arm/icside.c
===================================================================
@@ -377,9 +377,6 @@ static void icside_dma_lost_irq(ide_driv
 
 static void icside_dma_init(ide_hwif_t *hwif)
 {
-	hwif->mwdma_mask	= 7; /* MW0..2 */
-	hwif->swdma_mask	= 7; /* SW0..2 */
-
 	hwif->dmatable_cpu	= NULL;
 	hwif->dmatable_dma	= 0;
 	hwif->set_dma_mode	= icside_set_dma_mode;

@@ -459,11 +456,19 @@ icside_register_v5(struct icside_state *
 
 	idx[0] = hwif->index;
 
-	ide_device_add(idx);
+	ide_device_add(idx, NULL);
 
 	return 0;
 }
 
+static const struct ide_port_info icside_v6_port_info __initdata = {
+	.host_flags		= IDE_HFLAG_SERIALIZE |
+				  IDE_HFLAG_NO_DMA | /* no SFF-style DMA */
+				  IDE_HFLAG_NO_AUTOTUNE,
+	.mwdma_mask		= ATA_MWDMA2,
+	.swdma_mask		= ATA_SWDMA2,
+};
+
 static int __init
 icside_register_v6(struct icside_state *state, struct expansion_card *ec)
 {

@@ -472,6 +477,7 @@ icside_register_v6(struct icside_state *
 	unsigned int sel = 0;
 	int ret;
 	u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
+	struct ide_port_info d = icside_v6_port_info;
 
 	ioc_base = ecardm_iomap(ec, ECARD_RES_IOCFAST, 0, 0);
 	if (!ioc_base) {

@@ -521,30 +527,25 @@ icside_register_v6(struct icside_state *
 	state->hwif[1]    = mate;
 
 	hwif->maskproc    = icside_maskproc;
-	hwif->channel     = 0;
 	hwif->hwif_data   = state;
-	hwif->mate        = mate;
-	hwif->serialized  = 1;
 	hwif->config_data = (unsigned long)ioc_base;
 	hwif->select_data = sel;
 
 	mate->maskproc    = icside_maskproc;
-	mate->channel     = 1;
 	mate->hwif_data   = state;
-	mate->mate        = hwif;
-	mate->serialized  = 1;
 	mate->config_data = (unsigned long)ioc_base;
 	mate->select_data = sel | 1;
 
 	if (ec->dma != NO_DMA && !request_dma(ec->dma, hwif->name)) {
 		icside_dma_init(hwif);
 		icside_dma_init(mate);
-	}
+	} else
+		d.mwdma_mask = d.swdma_mask = 0;
 
 	idx[0] = hwif->index;
 	idx[1] = mate->index;
 
-	ide_device_add(idx);
+	ide_device_add(idx, &d);
 
 	return 0;
 

Index: b/drivers/ide/arm/ide_arm.c
===================================================================
@@ -39,7 +39,7 @@ static int __init ide_arm_init(void)
 		ide_init_port_hw(hwif, &hw);
 		idx[0] = hwif->index;
 
-		ide_device_add(idx);
+		ide_device_add(idx, NULL);
 	}
 
 	return 0;

Index: b/drivers/ide/arm/rapide.c
===================================================================
@@ -58,7 +58,7 @@ rapide_probe(struct expansion_card *ec, 
 
 		idx[0] = hwif->index;
 
-		ide_device_add(idx);
+		ide_device_add(idx, NULL);
 
 		ecard_set_drvdata(ec, hwif);
 		goto out;

Index: b/drivers/ide/cris/ide-cris.c
===================================================================
@@ -753,6 +753,15 @@ static void cris_set_dma_mode(ide_drive_
 		cris_ide_set_speed(TYPE_DMA, 0, strobe, hold);
 }
 
+static const struct ide_port_info cris_port_info __initdata = {
+	.chipset		= ide_etrax100,
+	.host_flags		= IDE_HFLAG_NO_ATAPI_DMA |
+				  IDE_HFLAG_NO_DMA, /* no SFF-style DMA */
+	.pio_mask		= ATA_PIO4,
+	.udma_mask		= cris_ultra_mask,
+	.mwdma_mask		= ATA_MWDMA2,
+};
+
 static int __init init_e100_ide(void)
 {
 	hw_regs_t hw;

@@ -780,7 +789,6 @@ static int __init init_e100_ide(void)
 		ide_init_port_data(hwif, hwif->index);
 		ide_init_port_hw(hwif, &hw);
 		hwif->mmio = 1;
-		hwif->chipset = ide_etrax100;
 		hwif->set_pio_mode = &cris_set_pio_mode;
 		hwif->set_dma_mode = &cris_set_dma_mode;
 		hwif->ata_input_data = &cris_ide_input_data;

@@ -799,12 +807,6 @@ static int __init init_e100_ide(void)
 		hwif->INB = &cris_ide_inb;
 		hwif->INW = &cris_ide_inw;
 		hwif->cbl = ATA_CBL_PATA40;
-		hwif->host_flags |= IDE_HFLAG_NO_ATAPI_DMA;
-		hwif->pio_mask = ATA_PIO4,
-		hwif->drives[0].autotune = 1;
-		hwif->drives[1].autotune = 1;
-		hwif->ultra_mask = cris_ultra_mask;
-		hwif->mwdma_mask = 0x07; /* Multiword DMA 0-2 */
 
 		idx[h] = hwif->index;
 	}

@@ -820,7 +822,7 @@ static int __init init_e100_ide(void)
 	cris_ide_set_speed(TYPE_DMA, 0, ATA_DMA2_STROBE, ATA_DMA2_HOLD);
 	cris_ide_set_speed(TYPE_UDMA, ATA_UDMA2_CYC, ATA_UDMA2_DVS, 0);
 
-	ide_device_add(idx);
+	ide_device_add(idx, &cris_port_info);
 
 	return 0;
 }

Index: b/drivers/ide/h8300/ide-h8300.c
===================================================================
@@ -114,7 +114,7 @@ static int __init h8300_ide_init(void)
 
 	idx[0] = index;
 
-	ide_device_add(idx);
+	ide_device_add(idx, NULL);
 
 	return 0;
 

Index: b/drivers/ide/ide-generic.c
===================================================================
@@ -23,7 +23,7 @@ static int __init ide_generic_init(void)
 	for (i = 0; i < MAX_HWIFS; i++)
 		idx[i] = ide_hwifs[i].present ? 0xff : i;
 
-	ide_device_add_all(idx);
+	ide_device_add_all(idx, NULL);
 
 	if (ide_hwifs[0].io_ports[IDE_DATA_OFFSET])
 		ide_release_lock();	/* for atari only */

Index: b/drivers/ide/ide-pnp.c
===================================================================
@@ -49,7 +49,7 @@ static int idepnp_probe(struct pnp_dev *
 		printk(KERN_INFO "ide%d: generic PnP IDE interface\n", index);
 		pnp_set_drvdata(dev,hwif);
 
-		ide_device_add(idx);
+		ide_device_add(idx, NULL);
 
 		return 0;
 	}

103 lines not on this page · raw message

Index: b/drivers/ide/ide.c
===================================================================
@@ -728,7 +728,7 @@ found:
 
 	idx[0] = index;
 
-	ide_device_add(idx);
+	ide_device_add(idx, NULL);
 
 	if (hwifp)
 		*hwifp = hwif;

Index: b/drivers/ide/legacy/ali14xx.c
===================================================================
@@ -191,9 +191,14 @@ static int __init initRegisters (void) {
 	return t;
 }
 
+static const struct ide_port_info ali14xx_port_info = {
+	.chipset		= ide_ali14xx,
+	.host_flags		= IDE_HFLAG_NO_DMA | IDE_HFLAG_NO_AUTOTUNE,
+	.pio_mask		= ATA_PIO4,
+};
+
 static int __init ali14xx_probe(void)
 {
-	ide_hwif_t *hwif, *mate;
 	static u8 idx[4] = { 0, 1, 0xff, 0xff };
 
 	printk(KERN_DEBUG "ali14xx: base=0x%03x, regOn=0x%02x.\n",

@@ -205,21 +210,10 @@ static int __init ali14xx_probe(void)
 		return 1;
 	}
 
-	hwif = &ide_hwifs[0];
-	mate = &ide_hwifs[1];
-
-	hwif->chipset = ide_ali14xx;
-	hwif->pio_mask = ATA_PIO4;
-	hwif->set_pio_mode = &ali14xx_set_pio_mode;
-	hwif->mate = mate;
-
-	mate->chipset = ide_ali14xx;
-	mate->pio_mask = ATA_PIO4;
-	mate->set_pio_mode = &ali14xx_set_pio_mode;
-	mate->mate = hwif;
-	mate->channel = 1;
+	ide_hwifs[0].set_pio_mode = &ali14xx_set_pio_mode;
+	ide_hwifs[1].set_pio_mode = &ali14xx_set_pio_mode;
 
-	ide_device_add(idx);
+	ide_device_add(idx, &ali14xx_port_info);
 
 	return 0;
 }

Index: b/drivers/ide/legacy/buddha.c
===================================================================
@@ -232,7 +232,7 @@ fail_base2:
 			}
 		}
 
-		ide_device_add(idx);
+		ide_device_add(idx, NULL);
 	}
 
 	return 0;

Index: b/drivers/ide/legacy/dtc2278.c
===================================================================
@@ -86,6 +86,15 @@ static void dtc2278_set_pio_mode(ide_dri
 	}
 }
 
+static const struct ide_port_info dtc2278_port_info __initdata = {
+	.chipset		= ide_dtc2278,
+	.host_flags		= IDE_HFLAG_SERIALIZE |
+				  IDE_HFLAG_IO_32BIT |
+				  IDE_HFLAG_NO_DMA |
+				  IDE_HFLAG_NO_AUTOTUNE,
+	.pio_mask		= ATA_PIO4,
+};
+
 static int __init dtc2278_probe(void)
 {
 	unsigned long flags;

@@ -116,29 +125,16 @@ static int __init dtc2278_probe(void)
 #endif
 	local_irq_restore(flags);
 
-	hwif->serialized = 1;
 	hwif->no_io_32bit = 1;	/* disallow ->io_32bit changes */
-	hwif->chipset = ide_dtc2278;
-	hwif->pio_mask = ATA_PIO4;
 	hwif->set_pio_mode = &dtc2278_set_pio_mode;
 	hwif->drives[0].no_unmask = 1;
 	hwif->drives[1].no_unmask = 1;
-	hwif->drives[0].io_32bit = 1;
-	hwif->drives[1].io_32bit = 1;
-	hwif->mate = mate;
 
-	mate->serialized = 1;
 	mate->no_io_32bit = 1;
-	mate->chipset = ide_dtc2278;
-	mate->pio_mask = ATA_PIO4;
 	mate->drives[0].no_unmask = 1;
 	mate->drives[1].no_unmask = 1;
-	mate->drives[0].io_32bit = 1;
-	mate->drives[1].io_32bit = 1;
-	mate->mate = hwif;
-	mate->channel = 1;
 
-	ide_device_add(idx);
+	ide_device_add(idx, &dtc2278_port_info);
 
 	return 0;
 }

Index: b/drivers/ide/legacy/falconide.c
===================================================================
@@ -82,7 +82,7 @@ static int __init falconide_init(void)
 		ide_init_port_data(hwif, index);
 		ide_init_port_hw(hwif, &hw);
 
-		ide_device_add(idx);
+		ide_device_add(idx, NULL);
 	}
     }
 

Index: b/drivers/ide/legacy/gayle.c
===================================================================
@@ -186,7 +186,7 @@ found:
 	    release_mem_region(res_start, res_n);
     }
 
-    ide_device_add(idx);
+    ide_device_add(idx, NULL);
 
     return 0;
 }

Index: b/drivers/ide/legacy/ht6560b.c
===================================================================
@@ -305,6 +305,15 @@ int probe_ht6560b = 0;
 module_param_named(probe, probe_ht6560b, bool, 0);
 MODULE_PARM_DESC(probe, "probe for HT6560B chipset");
 
+static const struct ide_port_info ht6560b_port_info __initdata = {
+	.chipset		= ide_ht6560b,
+	.host_flags		= IDE_HFLAG_SERIALIZE | /* is this needed? */
+				  IDE_HFLAG_NO_DMA |
+				  IDE_HFLAG_NO_AUTOTUNE |
+				  IDE_HFLAG_ABUSE_PREFETCH,
+	.pio_mask		= ATA_PIO5,
+};
+
 static int __init ht6560b_init(void)
 {
 	ide_hwif_t *hwif, *mate;

@@ -328,22 +337,11 @@ static int __init ht6560b_init(void)
 		goto release_region;
 	}
 
-	hwif->chipset = ide_ht6560b;
 	hwif->selectproc = &ht6560b_selectproc;
-	hwif->host_flags = IDE_HFLAG_ABUSE_PREFETCH;
-	hwif->pio_mask = ATA_PIO5;
 	hwif->set_pio_mode = &ht6560b_set_pio_mode;
-	hwif->serialized = 1;	/* is this needed? */
-	hwif->mate = mate;
 
-	mate->chipset = ide_ht6560b;
 	mate->selectproc = &ht6560b_selectproc;
-	mate->host_flags = IDE_HFLAG_ABUSE_PREFETCH;
-	mate->pio_mask = ATA_PIO5;
 	mate->set_pio_mode = &ht6560b_set_pio_mode;
-	mate->serialized = 1;	/* is this needed? */
-	mate->mate = hwif;
-	mate->channel = 1;
 
 	/*
 	 * Setting default configurations for drives

@@ -357,7 +355,7 @@ static int __init ht6560b_init(void)
 	mate->drives[0].drive_data = t;
 	mate->drives[1].drive_data = t;
 
-	ide_device_add(idx);
+	ide_device_add(idx, &ht6560b_port_info);
 
 	return 0;
 

Index: b/drivers/ide/legacy/ide_platform.c
===================================================================
@@ -108,7 +108,7 @@ static int __devinit plat_ide_probe(stru
 
 	idx[0] = hwif->index;
 
-	ide_device_add(idx);
+	ide_device_add(idx, NULL);
 
 	platform_set_drvdata(pdev, hwif);
 

Index: b/drivers/ide/legacy/macide.c
===================================================================
@@ -125,7 +125,7 @@ static int __init macide_init(void)
 
 		hwif->mmio = 1;
 
-		ide_device_add(idx);
+		ide_device_add(idx, NULL);
 	}
 
 	return 0;

Index: b/drivers/ide/legacy/q40ide.c
===================================================================
@@ -154,7 +154,7 @@ static int __init q40ide_init(void)
 	}
     }
 
-    ide_device_add(idx);
+    ide_device_add(idx, NULL);
 
     return 0;
 }

Index: b/drivers/ide/legacy/qd65xx.c
===================================================================
@@ -308,15 +308,10 @@ static int __init qd_testreg(int port)
 static void __init qd_setup(ide_hwif_t *hwif, int base, int config,
 			    unsigned int data0, unsigned int data1)
 {
-	hwif->chipset = ide_qd65xx;
-	hwif->channel = hwif->index;
 	hwif->select_data = base;
 	hwif->config_data = config;
 	hwif->drives[0].drive_data = data0;
 	hwif->drives[1].drive_data = data1;
-	hwif->drives[0].io_32bit =
-	hwif->drives[1].io_32bit = 1;
-	hwif->pio_mask = ATA_PIO4;
 }
 
 /*

@@ -356,6 +351,14 @@ static void __exit qd_unsetup(ide_hwif_t
 }
 */
 
+static const struct ide_port_info qd65xx_port_info __initdata = {
+	.chipset		= ide_qd65xx,
+	.host_flags		= IDE_HFLAG_IO_32BIT |
+				  IDE_HFLAG_NO_DMA |
+				  IDE_HFLAG_NO_AUTOTUNE,
+	.pio_mask		= ATA_PIO4,
+};
+
 /*
  * qd_probe:
  *

@@ -397,9 +400,9 @@ static int __init qd_probe(int base)
 
 		hwif->set_pio_mode = &qd6500_set_pio_mode;
 
-		idx[0] = unit;
+		idx[unit] = unit;
 
-		ide_device_add(idx);
+		ide_device_add(idx, &qd65xx_port_info);
 
 		return 1;
 	}

@@ -431,9 +434,9 @@ static int __init qd_probe(int base)
 
 			hwif->set_pio_mode = &qd6580_set_pio_mode;
 
-			idx[0] = unit;
+			idx[unit] = unit;
 
-			ide_device_add(idx);
+			ide_device_add(idx, &qd65xx_port_info);
 
 			outb(QD_DEF_CONTR, QD_CONTROL_PORT);
 

@@ -460,7 +463,7 @@ static int __init qd_probe(int base)
 			idx[0] = 0;
 			idx[1] = 1;
 
-			ide_device_add(idx);
+			ide_device_add(idx, &qd65xx_port_info);
 
 			outb(QD_DEF_CONTR, QD_CONTROL_PORT);
 

Index: b/drivers/ide/legacy/umc8672.c
===================================================================
@@ -120,9 +120,14 @@ static void umc_set_pio_mode(ide_drive_t
 	spin_unlock_irqrestore(&ide_lock, flags);
 }
 
+static const struct ide_port_info umc8672_port_info __initdata = {
+	.chipset		= ide_umc8672,
+	.host_flags		= IDE_HFLAG_NO_DMA | IDE_HFLAG_NO_AUTOTUNE,
+	.pio_mask		= ATA_PIO4,
+};
+
 static int __init umc8672_probe(void)
 {
-	ide_hwif_t *hwif, *mate;
 	unsigned long flags;
 	static u8 idx[4] = { 0, 1, 0xff, 0xff };
 

@@ -143,21 +148,10 @@ static int __init umc8672_probe(void)
 	umc_set_speeds (current_speeds);
 	local_irq_restore(flags);
 
-	hwif = &ide_hwifs[0];
-	mate = &ide_hwifs[1];
-
-	hwif->chipset = ide_umc8672;
-	hwif->pio_mask = ATA_PIO4;
-	hwif->set_pio_mode = &umc_set_pio_mode;
-	hwif->mate = mate;
-
-	mate->chipset = ide_umc8672;
-	mate->pio_mask = ATA_PIO4;
-	mate->set_pio_mode = &umc_set_pio_mode;
-	mate->mate = hwif;
-	mate->channel = 1;
+	ide_hwifs[0].set_pio_mode = &umc_set_pio_mode;
+	ide_hwifs[1].set_pio_mode = &umc_set_pio_mode;
 
-	ide_device_add(idx);
+	ide_device_add(idx, &umc8672_port_info);
 
 	return 0;
 }

Index: b/drivers/ide/mips/au1xxx-ide.c
===================================================================
@@ -548,6 +548,16 @@ static void auide_setup_ports(hw_regs_t 
 	*ata_regs = ahwif->regbase + (14 << AU1XXX_ATA_REG_OFFSET);
 }
 
+static const struct ide_port_info au1xxx_port_info = {
+	.host_flags		= IDE_HFLAG_POST_SET_MODE |
+				  IDE_HFLAG_NO_DMA | /* no SFF-style DMA */
+				  IDE_HFLAG_UNMASK_IRQS,
+	.pio_mask		= ATA_PIO4,
+#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
+	.mwdma_mask		= ATA_MWDMA2,
+#endif
+};
+
 static int au_ide_probe(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);

@@ -606,21 +616,6 @@ static int au_ide_probe(struct device *d
 
 	hwif->dev = dev;
 
-	hwif->ultra_mask                = 0x0;  /* Disable Ultra DMA */
-#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
-	hwif->mwdma_mask                = 0x07; /* Multimode-2 DMA  */
-	hwif->swdma_mask                = 0x00;
-#else
-	hwif->mwdma_mask                = 0x0;
-	hwif->swdma_mask                = 0x0;
-#endif
-
-	hwif->pio_mask = ATA_PIO4;
-	hwif->host_flags = IDE_HFLAG_POST_SET_MODE;
-
-	hwif->drives[0].unmask          = 1;
-	hwif->drives[1].unmask          = 1;
-
 	/* hold should be on in all cases */
 	hwif->hold                      = 1;
 

@@ -651,13 +646,9 @@ static int au_ide_probe(struct device *d
 	hwif->ide_dma_test_irq          = &auide_dma_test_irq;
 	hwif->dma_lost_irq		= &auide_dma_lost_irq;
 #endif
-	hwif->channel                   = 0;
 	hwif->select_data               = 0;    /* no chipset-specific code */
 	hwif->config_data               = 0;    /* no chipset-specific code */
 
-	hwif->drives[0].autotune        = 1;    /* 1=autotune, 2=noautotune, 0=default */
-	hwif->drives[1].autotune	= 1;
-
 	hwif->no_io_32bit		= 1;
 
 	auide_hwif.hwif                 = hwif;

@@ -670,7 +661,7 @@ static int au_ide_probe(struct device *d
 
 	idx[0] = hwif->index;
 
-	ide_device_add(idx);
+	ide_device_add(idx, &au1xxx_port_info);
 
 	dev_set_drvdata(dev, hwif);
 

Index: b/drivers/ide/mips/swarm.c
===================================================================
@@ -129,7 +129,7 @@ static int __devinit swarm_ide_probe(str
 
 	idx[0] = hwif->index;
 
-	ide_device_add(idx);
+	ide_device_add(idx, NULL);
 
 	dev_set_drvdata(dev, hwif);
 

Index: b/drivers/ide/pci/cmd640.c
===================================================================
@@ -703,6 +703,18 @@ static int pci_conf2(void)
 	return 0;
 }
 
+static const struct ide_port_info cmd640_port_info __initdata = {
+	.chipset		= ide_cmd640,
+	.host_flags		= IDE_HFLAG_SERIALIZE |
+				  IDE_HFLAG_NO_DMA |
+				  IDE_HFLAG_NO_AUTOTUNE |
+				  IDE_HFLAG_ABUSE_PREFETCH |
+				  IDE_HFLAG_ABUSE_FAST_DEVSEL,
+#ifdef CONFIG_BLK_DEV_CMD640_ENHANCED
+	.pio_mask		= ATA_PIO5,
+#endif
+};
+
 /*
  * Probe for a cmd640 chipset, and initialize it if found.
  */

@@ -760,11 +772,7 @@ static int __init cmd640x_init(void)
 	setup_device_ptrs ();
 	printk("%s: buggy cmd640%c interface on %s, config=0x%02x\n",
 	       cmd_hwif0->name, 'a' + cmd640_chip_version - 1, bus_type, cfr);
-	cmd_hwif0->chipset = ide_cmd640;
 #ifdef CONFIG_BLK_DEV_CMD640_ENHANCED
-	cmd_hwif0->host_flags = IDE_HFLAG_ABUSE_PREFETCH |
-				IDE_HFLAG_ABUSE_FAST_DEVSEL;
-	cmd_hwif0->pio_mask = ATA_PIO5;
 	cmd_hwif0->set_pio_mode = &cmd640_set_pio_mode;
 #endif /* CONFIG_BLK_DEV_CMD640_ENHANCED */
 

@@ -815,23 +823,14 @@ static int __init cmd640x_init(void)
 	 * Initialize data for secondary cmd640 port, if enabled
 	 */
 	if (second_port_cmd640) {
-		cmd_hwif0->serialized = 1;
-		cmd_hwif1->serialized = 1;
-		cmd_hwif1->chipset = ide_cmd640;
-		cmd_hwif0->mate = cmd_hwif1;
-		cmd_hwif1->mate = cmd_hwif0;
-		cmd_hwif1->channel = 1;
-#ifdef CONFIG_BLK_DEV_CMD640_ENHANCED
-		cmd_hwif1->host_flags = IDE_HFLAG_ABUSE_PREFETCH |
-					IDE_HFLAG_ABUSE_FAST_DEVSEL;
-		cmd_hwif1->pio_mask = ATA_PIO5;
+#ifdef CONFIG_BLK_DEV_CMD640_ENHANCED
 		cmd_hwif1->set_pio_mode = &cmd640_set_pio_mode;
 #endif /* CONFIG_BLK_DEV_CMD640_ENHANCED */
 
 		idx[1] = cmd_hwif1->index;
 	}
 	printk(KERN_INFO "%s: %sserialized, secondary interface %s\n", cmd_hwif1->name,
-		cmd_hwif0->serialized ? "" : "not ", port2);
+			 second_port_cmd640 ? "" : "not ", port2);
 
 	/*
 	 * Establish initial timings/prefetch for all drives.

@@ -876,7 +875,7 @@ static int __init cmd640x_init(void)
 	cmd640_dump_regs();
 #endif
 
-	ide_device_add(idx);
+	ide_device_add(idx, &cmd640_port_info);
 
 	return 1;
 }

Index: b/drivers/ide/pci/cs5520.c
===================================================================
@@ -174,7 +174,7 @@ static int __devinit cs5520_init_one(str
 
 	ide_pci_setup_ports(dev, d, 14, &idx[0]);
 
-	ide_device_add(idx);
+	ide_device_add(idx, d);
 
 	return 0;
 }

Index: b/drivers/ide/pci/sgiioc4.c
===================================================================
@@ -555,7 +555,6 @@ static void __devinit
 ide_init_sgiioc4(ide_hwif_t * hwif)
 {
 	hwif->mmio = 1;
-	hwif->pio_mask = 0x00;
 	hwif->set_pio_mode = NULL; /* Sets timing for PIO mode */
 	hwif->set_dma_mode = &sgiioc4_set_dma_mode;
 	hwif->selectproc = NULL;/* Use the default routine to select drive */

@@ -572,8 +571,6 @@ ide_init_sgiioc4(ide_hwif_t * hwif)
 	if (hwif->dma_base == 0)
 		return;
 
-	hwif->mwdma_mask = ATA_MWDMA2_ONLY;
-
 	hwif->dma_host_set = &sgiioc4_dma_host_set;
 	hwif->dma_setup = &sgiioc4_ide_dma_setup;
 	hwif->dma_start = &sgiioc4_ide_dma_start;

@@ -583,6 +580,13 @@ ide_init_sgiioc4(ide_hwif_t * hwif)
 	hwif->dma_timeout = &ide_dma_timeout;
 }
 
+static const struct ide_port_info sgiioc4_port_info __devinitdata = {
+	.chipset		= ide_pci,
+	.host_flags		= IDE_HFLAG_NO_DMA | /* no SFF-style DMA */
+				  IDE_HFLAG_NO_AUTOTUNE,
+	.mwdma_mask		= ATA_MWDMA2_ONLY,
+};
+
 static int __devinit
 sgiioc4_ide_setup_pci_device(struct pci_dev *dev)
 {

@@ -593,6 +597,7 @@ sgiioc4_ide_setup_pci_device(struct pci_
 	int h;
 	u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
 	hw_regs_t hw;
+	struct ide_port_info d = sgiioc4_port_info;
 
 	/*
 	 * Find an empty HWIF; if none available, return -ENOMEM.

@@ -641,7 +646,6 @@ sgiioc4_ide_setup_pci_device(struct pci_
 	ide_init_port_hw(hwif, &hw);
 
 	hwif->dev = &dev->dev;
-	hwif->channel = 0;	/* Single Channel chip */
 
 	/* The IOC4 uses MMIO rather than Port IO. */
 	default_hwif_mmiops(hwif);

@@ -649,15 +653,17 @@ sgiioc4_ide_setup_pci_device(struct pci_
 	/* Initializing chipset IRQ Registers */
 	writel(0x03, (void __iomem *)(irqport + IOC4_INTR_SET * 4));
 
-	if (dma_base == 0 || ide_dma_sgiioc4(hwif, dma_base))
+	if (dma_base == 0 || ide_dma_sgiioc4(hwif, dma_base)) {
 		printk(KERN_INFO "%s: %s Bus-Master DMA disabled\n",
 				 hwif->name, DRV_NAME);
+		d.mwdma_mask = 0;
+	}
 
 	ide_init_sgiioc4(hwif);
 
 	idx[0] = hwif->index;
 
-	if (ide_device_add(idx))
+	if (ide_device_add(idx, &d))
 		return -EIO;
 
 	return 0;

Index: b/drivers/ide/ppc/mpc8xx.c
===================================================================
@@ -848,7 +848,7 @@ static int __init mpc8xx_ide_probe(void)
 #endif
 #endif
 
-	ide_device_add(idx);
+	ide_device_add(idx, NULL);
 
 	return 0;
 }

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128 lines not on this page · raw message

Index: b/include/linux/ide.h
===================================================================
@@ -1019,6 +1019,13 @@ extern int __ide_pci_register_driver(str
 void ide_pci_setup_ports(struct pci_dev *, const struct ide_port_info *, int, u8 *);
 void ide_setup_pci_noise(struct pci_dev *, const struct ide_port_info *);
 
+#ifdef CONFIG_BLK_DEV_IDEDMA_PCI
+void ide_hwif_setup_dma(ide_hwif_t *, const struct ide_port_info *);
+#else
+static inline void ide_hwif_setup_dma(ide_hwif_t *hwif,
+				      const struct ide_port_info *d) { }
+#endif
+
 extern void default_hwif_iops(ide_hwif_t *);
 extern void default_hwif_mmiops(ide_hwif_t *);
 extern void default_hwif_transport(ide_hwif_t *);

@@ -1092,6 +1099,8 @@ enum {
 	IDE_HFLAG_CLEAR_SIMPLEX		= (1 << 28),
 	/* DSC overlap is unsupported */
 	IDE_HFLAG_NO_DSC		= (1 << 29),
+	/* don't autotune PIO */
+	IDE_HFLAG_NO_AUTOTUNE		= (1 << 30),
 };
 
 #ifdef CONFIG_BLK_DEV_OFFBOARD

@@ -1204,8 +1213,8 @@ void ide_unregister_region(struct gendis
 
 void ide_undecoded_slave(ide_drive_t *);
 
-int ide_device_add_all(u8 *idx);
-int ide_device_add(u8 idx[4]);
+int ide_device_add_all(u8 *idx, const struct ide_port_info *);
+int ide_device_add(u8 idx[4], const struct ide_port_info *);
 
 static inline void *ide_get_hwifdata (ide_hwif_t * hwif)
 {

Index: b/drivers/ide/ide-probe.c
===================================================================
@@ -1355,7 +1355,7 @@ static void ide_init_port(ide_hwif_t *hw
 	hwif->ultra_mask = d->udma_mask;
 
 	/* reset DMA masks only for SFF-style DMA controllers */
-	if ((d->host_flags && IDE_HFLAG_NO_DMA) == 0 && hwif->dma_base == 0)
+	if ((d->host_flags & IDE_HFLAG_NO_DMA) == 0 && hwif->dma_base == 0)
 		hwif->swdma_mask = hwif->mwdma_mask = hwif->ultra_mask = 0;
 
 	if (d->host_flags & IDE_HFLAG_RQSIZE_256)

Index: b/drivers/ide/ide-probe.c
===================================================================
@@ -1343,6 +1343,11 @@ static void ide_init_port(ide_hwif_t *hw
 	/* call chipset specific routine for each enabled port */
 	if (d->init_hwif)
 		d->init_hwif(hwif);
+
+	if (hwif->cable_detect && (hwif->ultra_mask & 0x78)) {
+		if (hwif->cbl != ATA_CBL_PATA40_SHORT)
+			hwif->cbl = hwif->cable_detect(hwif);
+	}
 }
 
 int ide_device_add_all(u8 idx[MAX_HWIFS], const struct ide_port_info *d)

Index: b/drivers/ide/pci/aec62xx.c
===================================================================
@@ -166,6 +166,16 @@ static unsigned int __devinit init_chips
 	return dev->irq;
 }
 
+static u8 __devinit atp86x_cable_detect(ide_hwif_t *hwif)
+{
+	struct pci_dev *dev = to_pci_dev(hwif->dev);
+	u8 ata66 = 0, mask = hwif->channel ? 0x02 : 0x01;
+
+	pci_read_config_byte(dev, 0x49, &ata66);
+
+	return (ata66 & mask) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
+}
+
 static void __devinit init_hwif_aec62xx(ide_hwif_t *hwif)
 {
 	struct pci_dev *dev = to_pci_dev(hwif->dev);

@@ -174,21 +184,10 @@ static void __devinit init_hwif_aec62xx(
 
 	if (dev->device == PCI_DEVICE_ID_ARTOP_ATP850UF)
 		hwif->set_dma_mode = &aec6210_set_mode;
-	else
+	else {
 		hwif->set_dma_mode = &aec6260_set_mode;
 
-	if (hwif->dma_base == 0)
-		return;
-
-	if (dev->device == PCI_DEVICE_ID_ARTOP_ATP850UF)
-		return;
-
-	if (hwif->cbl != ATA_CBL_PATA40_SHORT) {
-		u8 ata66 = 0, mask = hwif->channel ? 0x02 : 0x01;
-
-		pci_read_config_byte(dev, 0x49, &ata66);
-
-		hwif->cbl = (ata66 & mask) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
+		hwif->cable_detect = atp86x_cable_detect;
 	}
 }
 

Index: b/drivers/ide/pci/alim15x3.c
===================================================================
@@ -666,13 +666,12 @@ static void __devinit init_hwif_common_a
 	hwif->set_dma_mode = &ali_set_dma_mode;
 	hwif->udma_filter = &ali_udma_filter;
 
+	hwif->cable_detect = ata66_ali15x3;
+
 	if (hwif->dma_base == 0)
 		return;
 
 	hwif->dma_setup = &ali15x3_dma_setup;
-
-	if (hwif->cbl != ATA_CBL_PATA40_SHORT)
-		hwif->cbl = ata66_ali15x3(hwif);
 }
 
 /**

Index: b/drivers/ide/pci/amd74xx.c
===================================================================
@@ -199,6 +199,14 @@ static unsigned int __devinit init_chips
 	return dev->irq;
 }
 
+static u8 __devinit amd_cable_detect(ide_hwif_t *hwif)
+{
+	if ((amd_80w >> hwif->channel) & 1)
+		return ATA_CBL_PATA80;
+	else
+		return ATA_CBL_PATA40;
+}
+
 static void __devinit init_hwif_amd74xx(ide_hwif_t *hwif)
 {
 	struct pci_dev *dev = to_pci_dev(hwif->dev);

@@ -209,15 +217,7 @@ static void __devinit init_hwif_amd74xx(
 	hwif->set_pio_mode = &amd_set_pio_mode;
 	hwif->set_dma_mode = &amd_set_drive;
 
-	if (!hwif->dma_base)
-		return;
-
-	if (hwif->cbl != ATA_CBL_PATA40_SHORT) {
-		if ((amd_80w >> hwif->channel) & 1)
-			hwif->cbl = ATA_CBL_PATA80;
-		else
-			hwif->cbl = ATA_CBL_PATA40;
-	}
+	hwif->cable_detect = amd_cable_detect;
 }
 
 #define IDE_HFLAGS_AMD \

Index: b/drivers/ide/pci/atiixp.c
===================================================================
@@ -147,11 +147,7 @@ static void __devinit init_hwif_atiixp(i
 	hwif->set_pio_mode = &atiixp_set_pio_mode;
 	hwif->set_dma_mode = &atiixp_set_dma_mode;
 
-	if (!hwif->dma_base)
-		return;
-
-	if (hwif->cbl != ATA_CBL_PATA40_SHORT)
-		hwif->cbl = atiixp_cable_detect(hwif);
+	hwif->cable_detect = atiixp_cable_detect;
 }
 
 static const struct ide_port_info atiixp_pci_info[] __devinitdata = {

Index: b/drivers/ide/pci/cmd64x.c
===================================================================
@@ -393,6 +393,8 @@ static void __devinit init_hwif_cmd64x(i
 	hwif->set_pio_mode = &cmd64x_set_pio_mode;
 	hwif->set_dma_mode = &cmd64x_set_dma_mode;
 
+	hwif->cable_detect = ata66_cmd64x;
+
 	if (!hwif->dma_base)
 		return;
 

@@ -411,9 +413,6 @@ static void __devinit init_hwif_cmd64x(i
 	if (dev->device == PCI_DEVICE_ID_CMD_646 && dev->revision < 5)
 		hwif->ultra_mask = 0x00;
 
-	if (hwif->cbl != ATA_CBL_PATA40_SHORT)
-		hwif->cbl = ata66_cmd64x(hwif);
-
 	switch (dev->device) {
 	case PCI_DEVICE_ID_CMD_648:
 	case PCI_DEVICE_ID_CMD_649:

Index: b/drivers/ide/pci/cs5535.c
===================================================================
@@ -179,11 +179,7 @@ static void __devinit init_hwif_cs5535(i
 	hwif->set_pio_mode = &cs5535_set_pio_mode;
 	hwif->set_dma_mode = &cs5535_set_dma_mode;
 
-	if (hwif->dma_base == 0)
-		return;
-
-	if (hwif->cbl != ATA_CBL_PATA40_SHORT)
-		hwif->cbl = cs5535_cable_detect(hwif);
+	hwif->cable_detect = cs5535_cable_detect;
 }
 
 static const struct ide_port_info cs5535_chipset __devinitdata = {

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Index: b/drivers/ide/pci/it8213.c
===================================================================
@@ -143,6 +143,16 @@ static void it8213_set_dma_mode(ide_driv
 	}
 }
 
+static u8 __devinit it8213_cable_detect(ide_hwif_t *hwif)
+{
+	struct pci_dev *dev = to_pci_dev(hwif->dev);
+	u8 reg42h = 0;
+
+	pci_read_config_byte(dev, 0x42, &reg42h);
+
+	return (reg42h & 0x02) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
+}
+
 /**
  *	init_hwif_it8213	-	set up hwif structs
  *	@hwif: interface to set up

@@ -152,19 +162,10 @@ static void it8213_set_dma_mode(ide_driv
 
 static void __devinit init_hwif_it8213(ide_hwif_t *hwif)
 {
-	struct pci_dev *dev = to_pci_dev(hwif->dev);
-	u8 reg42h = 0;
-
 	hwif->set_dma_mode = &it8213_set_dma_mode;
 	hwif->set_pio_mode = &it8213_set_pio_mode;
 
-	if (!hwif->dma_base)
-		return;
-
-	pci_read_config_byte(dev, 0x42, &reg42h);
-
-	if (hwif->cbl != ATA_CBL_PATA40_SHORT)
-		hwif->cbl = (reg42h & 0x02) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
+	hwif->cable_detect = it8213_cable_detect;
 }
 
 

Index: b/drivers/ide/pci/it821x.c
===================================================================
@@ -579,14 +579,13 @@ static void __devinit init_hwif_it821x(i
 	} else
 		hwif->host_flags |= IDE_HFLAG_NO_SET_MODE;
 
+	hwif->cable_detect = ata66_it821x;
+
 	if (hwif->dma_base == 0)
 		return;
 
 	hwif->ultra_mask = ATA_UDMA6;
 	hwif->mwdma_mask = ATA_MWDMA2;
-
-	if (hwif->cbl != ATA_CBL_PATA40_SHORT)
-		hwif->cbl = ata66_it821x(hwif);
 }
 
 static void __devinit it8212_disable_raid(struct pci_dev *dev)

Index: b/drivers/ide/pci/jmicron.c
===================================================================
@@ -111,11 +111,7 @@ static void __devinit init_hwif_jmicron(
 	hwif->set_pio_mode = &jmicron_set_pio_mode;
 	hwif->set_dma_mode = &jmicron_set_dma_mode;
 
-	if (hwif->dma_base == 0)
-		return;
-
-	if (hwif->cbl != ATA_CBL_PATA40_SHORT)
-		hwif->cbl = ata66_jmicron(hwif);
+	hwif->cable_detect = ata66_jmicron;
 }
 
 static const struct ide_port_info jmicron_chipset __devinitdata = {

Index: b/drivers/ide/pci/pdc202xx_new.c
===================================================================
@@ -197,7 +197,7 @@ static void pdcnew_set_pio_mode(ide_driv
 	}
 }
 
-static u8 pdcnew_cable_detect(ide_hwif_t *hwif)
+static u8 __devinit pdcnew_cable_detect(ide_hwif_t *hwif)
 {
 	if (get_indexed_reg(hwif, 0x0b) & 0x04)
 		return ATA_CBL_PATA40;

@@ -456,11 +456,7 @@ static void __devinit init_hwif_pdc202ne
 	hwif->quirkproc = &pdcnew_quirkproc;
 	hwif->resetproc = &pdcnew_reset;
 
-	if (hwif->dma_base == 0)
-		return;
-
-	if (hwif->cbl != ATA_CBL_PATA40_SHORT)
-		hwif->cbl = pdcnew_cable_detect(hwif);
+	hwif->cable_detect = pdcnew_cable_detect;
 }
 
 static struct pci_dev * __devinit pdc20270_get_dev2(struct pci_dev *dev)

Index: b/drivers/ide/pci/pdc202xx_old.c
===================================================================
@@ -140,7 +140,7 @@ static void pdc202xx_set_pio_mode(ide_dr
 	pdc202xx_set_mode(drive, XFER_PIO_0 + pio);
 }
 
-static u8 pdc202xx_old_cable_detect (ide_hwif_t *hwif)
+static u8 __devinit pdc2026x_old_cable_detect(ide_hwif_t *hwif)
 {
 	struct pci_dev *dev = to_pci_dev(hwif->dev);
 	u16 CIS = 0, mask = (hwif->channel) ? (1<<11) : (1<<10);

@@ -311,9 +311,12 @@ static void __devinit init_hwif_pdc202xx
 
 	hwif->quirkproc = &pdc202xx_quirkproc;
 
-	if (dev->device != PCI_DEVICE_ID_PROMISE_20246)
+	if (dev->device != PCI_DEVICE_ID_PROMISE_20246) {
 		hwif->resetproc = &pdc202xx_reset;
 
+		hwif->cable_detect = pdc2026x_old_cable_detect;
+	}
+
 	if (hwif->dma_base == 0)
 		return;
 

@@ -321,9 +324,6 @@ static void __devinit init_hwif_pdc202xx
 	hwif->dma_timeout = &pdc202xx_dma_timeout;
 
 	if (dev->device != PCI_DEVICE_ID_PROMISE_20246) {
-		if (hwif->cbl != ATA_CBL_PATA40_SHORT)
-			hwif->cbl = pdc202xx_old_cable_detect(hwif);
-
 		hwif->dma_start = &pdc202xx_old_ide_dma_start;
 		hwif->ide_dma_end = &pdc202xx_old_ide_dma_end;
 	} 

Index: b/drivers/ide/pci/piix.c
===================================================================
@@ -290,14 +290,11 @@ static void __devinit init_hwif_piix(ide
 	hwif->set_pio_mode = &piix_set_pio_mode;
 	hwif->set_dma_mode = &piix_set_dma_mode;
 
+	hwif->cable_detect = piix_cable_detect;
+
 	if (!hwif->dma_base)
 		return;
 
-	if (hwif->ultra_mask & 0x78) {
-		if (hwif->cbl != ATA_CBL_PATA40_SHORT)
-			hwif->cbl = piix_cable_detect(hwif);
-	}
-
 	if (no_piix_dma)
 		hwif->ultra_mask = hwif->mwdma_mask = hwif->swdma_mask = 0;
 }

Index: b/drivers/ide/pci/scc_pata.c
===================================================================
@@ -683,8 +683,7 @@ static void __devinit init_hwif_scc(ide_
 	else
 		hwif->ultra_mask = ATA_UDMA5; /* 100MHz */
 
-	if (hwif->cbl != ATA_CBL_PATA40_SHORT)
-		hwif->cbl = scc_cable_detect(hwif);
+	hwif->cable_detect = scc_cable_detect;
 }
 
 #define DECLARE_SCC_DEV(name_str)			\

Index: b/drivers/ide/pci/serverworks.c
===================================================================
@@ -346,13 +346,8 @@ static void __devinit init_hwif_svwks (i
 	hwif->set_dma_mode = &svwks_set_dma_mode;
 	hwif->udma_filter = &svwks_udma_filter;
 
-	if (!hwif->dma_base)
-		return;
-
-	if (dev->device != PCI_DEVICE_ID_SERVERWORKS_OSB4IDE) {
-		if (hwif->cbl != ATA_CBL_PATA40_SHORT)
-			hwif->cbl = ata66_svwks(hwif);
-	}
+	if (dev->device != PCI_DEVICE_ID_SERVERWORKS_OSB4IDE)
+		hwif->cable_detect = ata66_svwks;
 }
 
 #define IDE_HFLAGS_SVWKS \

Index: b/drivers/ide/pci/siimage.c
===================================================================
@@ -827,15 +827,14 @@ static void __devinit init_hwif_siimage(
 	} else
 		hwif->udma_filter = &sil_pata_udma_filter;
 
+	hwif->cable_detect = ata66_siimage;
+
 	if (hwif->dma_base == 0)
 		return;
 
 	if (sata)
 		hwif->host_flags |= IDE_HFLAG_NO_ATAPI_DMA;
 
-	if (hwif->cbl != ATA_CBL_PATA40_SHORT)
-		hwif->cbl = ata66_siimage(hwif);
-
 	if (hwif->mmio) {
 		hwif->ide_dma_test_irq = &siimage_mmio_ide_dma_test_irq;
 	} else {

Index: b/drivers/ide/pci/sis5513.c
===================================================================
@@ -565,13 +565,12 @@ static void __devinit init_hwif_sis5513 
 	if (chipset_family >= ATA_133)
 		hwif->udma_filter = sis5513_ata133_udma_filter;
 
+	hwif->cable_detect = ata66_sis5513;
+
 	if (hwif->dma_base == 0)
 		return;
 
 	hwif->ultra_mask = udma_rates[chipset_family];
-
-	if (hwif->cbl != ATA_CBL_PATA40_SHORT)
-		hwif->cbl = ata66_sis5513(hwif);
 }
 
 static const struct ide_port_info sis5513_chipset __devinitdata = {

Index: b/drivers/ide/pci/slc90e66.c
===================================================================
@@ -118,23 +118,26 @@ static void slc90e66_set_dma_mode(ide_dr
 	}
 }
 
-static void __devinit init_hwif_slc90e66 (ide_hwif_t *hwif)
+static u8 __devinit slc90e66_cable_detect(ide_hwif_t *hwif)
 {
 	struct pci_dev *dev = to_pci_dev(hwif->dev);
-	u8 reg47 = 0;
-	u8 mask = hwif->channel ? 0x01 : 0x02;  /* bit0:Primary */
+	u8 reg47 = 0, mask = hwif->channel ? 0x01 : 0x02;
 
+	pci_read_config_byte(dev, 0x47, &reg47);
+
+	/* bit[0(1)]: 0:80, 1:40 */
+	return (reg47 & mask) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
+}
+
+static void __devinit init_hwif_slc90e66(ide_hwif_t *hwif)
+{
 	hwif->set_pio_mode = &slc90e66_set_pio_mode;
 	hwif->set_dma_mode = &slc90e66_set_dma_mode;
 
-	pci_read_config_byte(dev, 0x47, &reg47);
-
 	if (hwif->dma_base == 0)
 		return;
 
-	if (hwif->cbl != ATA_CBL_PATA40_SHORT)
-		/* bit[0(1)]: 0:80, 1:40 */
-		hwif->cbl = (reg47 & mask) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
+	hwif->cable_detect = slc90e66_cable_detect;
 }
 
 static const struct ide_port_info slc90e66_chipset __devinitdata = {

Index: b/drivers/ide/pci/tc86c001.c
===================================================================
@@ -160,6 +160,19 @@ static int tc86c001_busproc(ide_drive_t 
 	return 0;
 }
 
+static u8 __devinit tc86c001_cable_detect(ide_hwif_t *hwif)
+{
+	struct pci_dev *dev = to_pci_dev(hwif->dev);
+	unsigned long sc_base = pci_resource_start(dev, 5);
+	u16 scr1 = inw(sc_base + 0x00);
+
+	/*
+	 * System Control  1 Register bit 13 (PDIAGN):
+	 * 0=80-pin cable, 1=40-pin cable
+	 */
+	return (scr1 & 0x2000) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
+}
+
 static void __devinit init_hwif_tc86c001(ide_hwif_t *hwif)
 {
 	struct pci_dev *dev	= to_pci_dev(hwif->dev);

@@ -183,6 +196,8 @@ static void __devinit init_hwif_tc86c001
 
 	hwif->busproc	= &tc86c001_busproc;
 
+	hwif->cable_detect = tc86c001_cable_detect;
+
 	if (!hwif->dma_base)
 		return;
 

@@ -196,15 +211,6 @@ static void __devinit init_hwif_tc86c001
 	hwif->rqsize	 = 0xffff;
 
 	hwif->dma_start 	= &tc86c001_dma_start;
-
-	if (hwif->cbl != ATA_CBL_PATA40_SHORT) {
-		/*
-		 * System Control  1 Register bit 13 (PDIAGN):
-		 * 0=80-pin cable, 1=40-pin cable
-		 */
-		scr1 = inw(sc_base + 0x00);
-		hwif->cbl = (scr1 & 0x2000) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
-	}
 }
 
 static unsigned int __devinit init_chipset_tc86c001(struct pci_dev *dev,

Index: b/drivers/ide/pci/via82cxxx.c
===================================================================
@@ -424,11 +424,7 @@ static void __devinit init_hwif_via82cxx
 	hwif->set_pio_mode = &via_set_pio_mode;
 	hwif->set_dma_mode = &via_set_drive;
 
-	if (!hwif->dma_base)
-		return;
-
-	if (hwif->cbl != ATA_CBL_PATA40_SHORT)
-		hwif->cbl = via82cxxx_cable_detect(hwif);
+	hwif->cable_detect = via82cxxx_cable_detect;
 }
 
 static const struct ide_port_info via82cxxx_chipset __devinitdata = {

Index: b/include/linux/ide.h
===================================================================
@@ -535,6 +535,8 @@ typedef struct hwif_s {
 	u8 (*mdma_filter)(ide_drive_t *);
 	u8 (*udma_filter)(ide_drive_t *);
 
+	u8 (*cable_detect)(struct hwif_s *);
+
 	void (*ata_input_data)(ide_drive_t *, void *, u32);
 	void (*ata_output_data)(ide_drive_t *, void *, u32);