Merge branch 'for-2.6.31' of git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6

* 'for-2.6.31' of git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: (29 commits)
  ide: re-implement ide_pci_init_one() on top of ide_pci_init_two()
  ide: unexport ide_find_dma_mode()
  ide: fix PowerMac bootup oops
  ide: skip probe if there are no devices on the port (v2)
  sl82c105: add printk() logging facility
  ide-tape: fix proc warning
  ide: add IDE_DFLAG_NIEN_QUIRK device flag
  ide: respect quirk_drives[] list on all controllers
  hpt366: enable all quirks for devices on quirk_drives[] list
  hpt366: sync quirk_drives[] list with pdc202xx_{new,old}.c
  ide: remove superfluous SELECT_MASK() call from do_rw_taskfile()
  ide: remove superfluous SELECT_MASK() call from ide_driveid_update()
  icside: remove superfluous ->maskproc method
  ide-tape: fix IDE_AFLAG_* atomic accesses
  ide-tape: change IDE_AFLAG_IGNORE_DSC non-atomically
  pdc202xx_old: kill resetproc() method
  pdc202xx_old: don't call pdc202xx_reset() on IRQ timeout
  pdc202xx_old: use ide_dma_test_irq()
  ide: preserve Host Protected Area by default (v2)
  ide-gd: implement block device ->set_capacity method (v2)
  ...

42 files changed, 383 insertions, 522 deletions

diff --git a/drivers/ide/at91_ide.c b/drivers/ide/at91_ide.c
index 403d0e4265d..fc0949a8cfd 100644
--- a/drivers/ide/at91_ide.c
+++ b/drivers/ide/at91_ide.c
@@ -216,6 +216,7 @@ static const struct ide_port_info at91_ide_port_info __initdata = {
 	.host_flags 	= IDE_HFLAG_MMIO | IDE_HFLAG_NO_DMA | IDE_HFLAG_SINGLE |
 			  IDE_HFLAG_NO_IO_32BIT | IDE_HFLAG_UNMASK_IRQS,
 	.pio_mask 	= ATA_PIO6,
+	.chipset	= ide_generic,
 };
 
 /*
@@ -246,8 +247,7 @@ irqreturn_t at91_irq_handler(int irq, void *dev_id)
 static int __init at91_ide_probe(struct platform_device *pdev)
 {
 	int ret;
-	hw_regs_t hw;
-	hw_regs_t *hws[] = { &hw, NULL, NULL, NULL };
+	struct ide_hw hw, *hws[] = { &hw };
 	struct ide_host *host;
 	struct resource *res;
 	unsigned long tf_base = 0, ctl_base = 0;
@@ -304,10 +304,9 @@ static int __init at91_ide_probe(struct platform_device *pdev)
 		ide_std_init_ports(&hw, tf_base, ctl_base + 6);
 
 	hw.irq = board->irq_pin;
-	hw.chipset = ide_generic;
 	hw.dev = &pdev->dev;
 
-	host = ide_host_alloc(&at91_ide_port_info, hws);
+	host = ide_host_alloc(&at91_ide_port_info, hws, 1);
 	if (!host) {
 		perr("failed to allocate ide host\n");
 		return -ENOMEM;
diff --git a/drivers/ide/au1xxx-ide.c b/drivers/ide/au1xxx-ide.c
index 46013644c96..58121bd6c11 100644
--- a/drivers/ide/au1xxx-ide.c
+++ b/drivers/ide/au1xxx-ide.c
@@ -449,7 +449,7 @@ static int auide_ddma_init(ide_hwif_t *hwif, const struct ide_port_info *d)
 }
 #endif
 
-static void auide_setup_ports(hw_regs_t *hw, _auide_hwif *ahwif)
+static void auide_setup_ports(struct ide_hw *hw, _auide_hwif *ahwif)
 {
 	int i;
 	unsigned long *ata_regs = hw->io_ports_array;
@@ -499,6 +499,7 @@ static const struct ide_port_info au1xxx_port_info = {
 #ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
 	.mwdma_mask		= ATA_MWDMA2,
 #endif
+	.chipset		= ide_au1xxx,
 };
 
 static int au_ide_probe(struct platform_device *dev)
@@ -507,7 +508,7 @@ static int au_ide_probe(struct platform_device *dev)
 	struct resource *res;
 	struct ide_host *host;
 	int ret = 0;
-	hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL };
+	struct ide_hw hw, *hws[] = { &hw };
 
 #if defined(CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA)
 	char *mode = "MWDMA2";
@@ -548,9 +549,8 @@ static int au_ide_probe(struct platform_device *dev)
 	auide_setup_ports(&hw, ahwif);
 	hw.irq = ahwif->irq;
 	hw.dev = &dev->dev;
-	hw.chipset = ide_au1xxx;
 
-	ret = ide_host_add(&au1xxx_port_info, hws, &host);
+	ret = ide_host_add(&au1xxx_port_info, hws, 1, &host);
 	if (ret)
 		goto out;
 
diff --git a/drivers/ide/buddha.c b/drivers/ide/buddha.c
index d028f8864bc..e3c6a591330 100644
--- a/drivers/ide/buddha.c
+++ b/drivers/ide/buddha.c
@@ -121,7 +121,7 @@ static int xsurf_ack_intr(ide_hwif_t *hwif)
     return 1;
 }
 
-static void __init buddha_setup_ports(hw_regs_t *hw, unsigned long base,
+static void __init buddha_setup_ports(struct ide_hw *hw, unsigned long base,
 				      unsigned long ctl, unsigned long irq_port,
 				      ide_ack_intr_t *ack_intr)
 {
@@ -139,13 +139,12 @@ static void __init buddha_setup_ports(hw_regs_t *hw, unsigned long base,
 
 	hw->irq = IRQ_AMIGA_PORTS;
 	hw->ack_intr = ack_intr;
-
-	hw->chipset = ide_generic;
 }
 
 static const struct ide_port_info buddha_port_info = {
 	.host_flags		= IDE_HFLAG_MMIO | IDE_HFLAG_NO_DMA,
 	.irq_flags		= IRQF_SHARED,
+	.chipset		= ide_generic,
 };
 
     /*
@@ -161,7 +160,7 @@ static int __init buddha_init(void)
 
 	while ((z = zorro_find_device(ZORRO_WILDCARD, z))) {
 		unsigned long board;
-		hw_regs_t hw[MAX_NUM_HWIFS], *hws[] = { NULL, NULL, NULL, NULL };
+		struct ide_hw hw[MAX_NUM_HWIFS], *hws[MAX_NUM_HWIFS];
 
 		if (z->id == ZORRO_PROD_INDIVIDUAL_COMPUTERS_BUDDHA) {
 			buddha_num_hwifs = BUDDHA_NUM_HWIFS;
@@ -225,7 +224,7 @@ fail_base2:
 			hws[i] = &hw[i];
 		}
 
-		ide_host_add(&buddha_port_info, hws, NULL);
+		ide_host_add(&buddha_port_info, hws, i, NULL);
 	}
 
 	return 0;
diff --git a/drivers/ide/cmd640.c b/drivers/ide/cmd640.c
index 8890276fef7..1683ed5c732 100644
--- a/drivers/ide/cmd640.c
+++ b/drivers/ide/cmd640.c
@@ -708,7 +708,7 @@ static int __init cmd640x_init(void)
 	int second_port_cmd640 = 0, rc;
 	const char *bus_type, *port2;
 	u8 b, cfr;
-	hw_regs_t hw[2], *hws[] = { NULL, NULL, NULL, NULL };
+	struct ide_hw hw[2], *hws[2];
 
 	if (cmd640_vlb && probe_for_cmd640_vlb()) {
 		bus_type = "VLB";
@@ -762,11 +762,9 @@ static int __init cmd640x_init(void)
 
 	ide_std_init_ports(&hw[0], 0x1f0, 0x3f6);
 	hw[0].irq = 14;
-	hw[0].chipset = ide_cmd640;
 
 	ide_std_init_ports(&hw[1], 0x170, 0x376);
 	hw[1].irq = 15;
-	hw[1].chipset = ide_cmd640;
 
 	printk(KERN_INFO "cmd640: buggy cmd640%c interface on %s, config=0x%02x"
 			 "\n", 'a' + cmd640_chip_version - 1, bus_type, cfr);
@@ -824,7 +822,8 @@ static int __init cmd640x_init(void)
 	cmd640_dump_regs();
 #endif
 
-	return ide_host_add(&cmd640_port_info, hws, NULL);
+	return ide_host_add(&cmd640_port_info, hws, second_port_cmd640 ? 2 : 1,
+			    NULL);
 }
 
 module_param_named(probe_vlb, cmd640_vlb, bool, 0);
diff --git a/drivers/ide/cs5520.c b/drivers/ide/cs5520.c
index 87987a7d36c..bd066bb9d61 100644
--- a/drivers/ide/cs5520.c
+++ b/drivers/ide/cs5520.c
@@ -110,7 +110,7 @@ static const struct ide_port_info cyrix_chipset __devinitdata = {
 static int __devinit cs5520_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 {
 	const struct ide_port_info *d = &cyrix_chipset;
-	hw_regs_t hw[4], *hws[] = { NULL, NULL, NULL, NULL };
+	struct ide_hw hw[2], *hws[] = { NULL, NULL };
 
 	ide_setup_pci_noise(dev, d);
 
@@ -136,7 +136,7 @@ static int __devinit cs5520_init_one(struct pci_dev *dev, const struct pci_devic
 	ide_pci_setup_ports(dev, d, &hw[0], &hws[0]);
 	hw[0].irq = 14;
 
-	return ide_host_add(d, hws, NULL);
+	return ide_host_add(d, hws, 2, NULL);
 }
 
 static const struct pci_device_id cs5520_pci_tbl[] = {
diff --git a/drivers/ide/delkin_cb.c b/drivers/ide/delkin_cb.c
index f153b95619b..1e10eba62ce 100644
--- a/drivers/ide/delkin_cb.c
+++ b/drivers/ide/delkin_cb.c
@@ -68,6 +68,7 @@ static const struct ide_port_info delkin_cb_port_info = {
 				  IDE_HFLAG_NO_DMA,
 	.irq_flags		= IRQF_SHARED,
 	.init_chipset		= delkin_cb_init_chipset,
+	.chipset		= ide_pci,
 };
 
 static int __devinit
@@ -76,7 +77,7 @@ delkin_cb_probe (struct pci_dev *dev, const struct pci_device_id *id)
 	struct ide_host *host;
 	unsigned long base;
 	int rc;
-	hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL };
+	struct ide_hw hw, *hws[] = { &hw };
 
 	rc = pci_enable_device(dev);
 	if (rc) {
@@ -97,9 +98,8 @@ delkin_cb_probe (struct pci_dev *dev, const struct pci_device_id *id)
 	ide_std_init_ports(&hw, base + 0x10, base + 0x1e);
 	hw.irq = dev->irq;
 	hw.dev = &dev->dev;
-	hw.chipset = ide_pci;		/* this enables IRQ sharing */
 
-	rc = ide_host_add(&delkin_cb_port_info, hws, &host);
+	rc = ide_host_add(&delkin_cb_port_info, hws, 1, &host);
 	if (rc)
 		goto out_disable;
 
diff --git a/drivers/ide/falconide.c b/drivers/ide/falconide.c
index 0e2df6755ec..22fa27389c3 100644
--- a/drivers/ide/falconide.c
+++ b/drivers/ide/falconide.c
@@ -111,9 +111,10 @@ static const struct ide_port_info falconide_port_info = {
 	.host_flags		= IDE_HFLAG_MMIO | IDE_HFLAG_SERIALIZE |
 				  IDE_HFLAG_NO_DMA,
 	.irq_flags		= IRQF_SHARED,
+	.chipset		= ide_generic,
 };
 
-static void __init falconide_setup_ports(hw_regs_t *hw)
+static void __init falconide_setup_ports(struct ide_hw *hw)
 {
 	int i;
 
@@ -128,8 +129,6 @@ static void __init falconide_setup_ports(hw_regs_t *hw)
 
 	hw->irq = IRQ_MFP_IDE;
 	hw->ack_intr = NULL;
-
-	hw->chipset = ide_generic;
 }
 
     /*
@@ -139,7 +138,7 @@ static void __init falconide_setup_ports(hw_regs_t *hw)
 static int __init falconide_init(void)
 {
 	struct ide_host *host;
-	hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL };
+	struct ide_hw hw, *hws[] = { &hw };
 	int rc;
 
 	if (!MACH_IS_ATARI || !ATARIHW_PRESENT(IDE))
@@ -154,7 +153,7 @@ static int __init falconide_init(void)
 
 	falconide_setup_ports(&hw);
 
-	host = ide_host_alloc(&falconide_port_info, hws);
+	host = ide_host_alloc(&falconide_port_info, hws, 1);
 	if (host == NULL) {
 		rc = -ENOMEM;
 		goto err;
diff --git a/drivers/ide/gayle.c b/drivers/ide/gayle.c
index c7119516c5a..4451a6a5dfe 100644
--- a/drivers/ide/gayle.c
+++ b/drivers/ide/gayle.c
@@ -88,7 +88,7 @@ static int gayle_ack_intr_a1200(ide_hwif_t *hwif)
     return 1;
 }
 
-static void __init gayle_setup_ports(hw_regs_t *hw, unsigned long base,
+static void __init gayle_setup_ports(struct ide_hw *hw, unsigned long base,
 				     unsigned long ctl, unsigned long irq_port,
 				     ide_ack_intr_t *ack_intr)
 {
@@ -106,14 +106,13 @@ static void __init gayle_setup_ports(hw_regs_t *hw, unsigned long base,
 
 	hw->irq = IRQ_AMIGA_PORTS;
 	hw->ack_intr = ack_intr;
-
-	hw->chipset = ide_generic;
 }
 
 static const struct ide_port_info gayle_port_info = {
 	.host_flags		= IDE_HFLAG_MMIO | IDE_HFLAG_SERIALIZE |
 				  IDE_HFLAG_NO_DMA,
 	.irq_flags		= IRQF_SHARED,
+	.chipset		= ide_generic,
 };
 
     /*
@@ -126,7 +125,7 @@ static int __init gayle_init(void)
     unsigned long base, ctrlport, irqport;
     ide_ack_intr_t *ack_intr;
     int a4000, i, rc;
-    hw_regs_t hw[GAYLE_NUM_HWIFS], *hws[] = { NULL, NULL, NULL, NULL };
+    struct ide_hw hw[GAYLE_NUM_HWIFS], *hws[GAYLE_NUM_HWIFS];
 
     if (!MACH_IS_AMIGA)
 	return -ENODEV;
@@ -171,7 +170,7 @@ found:
 	hws[i] = &hw[i];
     }
 
-    rc = ide_host_add(&gayle_port_info, hws, NULL);
+    rc = ide_host_add(&gayle_port_info, hws, i, NULL);
     if (rc)
 	release_mem_region(res_start, res_n);
 
diff --git a/drivers/ide/hpt366.c b/drivers/ide/hpt366.c
index 0feb66c720e..7ce68ef6b90 100644
--- a/drivers/ide/hpt366.c
+++ b/drivers/ide/hpt366.c
@@ -138,14 +138,6 @@
 #undef	HPT_RESET_STATE_ENGINE
 #undef	HPT_DELAY_INTERRUPT
 
-static const char *quirk_drives[] = {
-	"QUANTUM FIREBALLlct08 08",
-	"QUANTUM FIREBALLP KA6.4",
-	"QUANTUM FIREBALLP LM20.4",
-	"QUANTUM FIREBALLP LM20.5",
-	NULL
-};
-
 static const char *bad_ata100_5[] = {
 	"IBM-DTLA-307075",
 	"IBM-DTLA-307060",
@@ -729,27 +721,13 @@ static void hpt3xx_set_pio_mode(ide_drive_t *drive, const u8 pio)
 	hpt3xx_set_mode(drive, XFER_PIO_0 + pio);
 }
 
-static void hpt3xx_quirkproc(ide_drive_t *drive)
-{
-	char *m			= (char *)&drive->id[ATA_ID_PROD];
-	const  char **list	= quirk_drives;
-
-	while (*list)
-		if (strstr(m, *list++)) {
-			drive->quirk_list = 1;
-			return;
-		}
-
-	drive->quirk_list = 0;
-}
-
 static void hpt3xx_maskproc(ide_drive_t *drive, int mask)
 {
 	ide_hwif_t *hwif	= drive->hwif;
 	struct pci_dev	*dev	= to_pci_dev(hwif->dev);
 	struct hpt_info *info	= hpt3xx_get_info(hwif->dev);
 
-	if (drive->quirk_list == 0)
+	if ((drive->dev_flags & IDE_DFLAG_NIEN_QUIRK) == 0)
 		return;
 
 	if (info->chip_type >= HPT370) {
@@ -1404,7 +1382,6 @@ static int __devinit hpt36x_init(struct pci_dev *dev, struct pci_dev *dev2)
 static const struct ide_port_ops hpt3xx_port_ops = {
 	.set_pio_mode		= hpt3xx_set_pio_mode,
 	.set_dma_mode		= hpt3xx_set_mode,
-	.quirkproc		= hpt3xx_quirkproc,
 	.maskproc		= hpt3xx_maskproc,
 	.mdma_filter		= hpt3xx_mdma_filter,
 	.udma_filter		= hpt3xx_udma_filter,
diff --git a/drivers/ide/icside.c b/drivers/ide/icside.c
index 36da913cc55..5af3d0ffaf0 100644
--- a/drivers/ide/icside.c
+++ b/drivers/ide/icside.c
@@ -65,8 +65,6 @@ static struct cardinfo icside_cardinfo_v6_2 = {
 };
 
 struct icside_state {
-	unsigned int channel;
-	unsigned int enabled;
 	void __iomem *irq_port;
 	void __iomem *ioc_base;
 	unsigned int sel;
@@ -116,18 +114,11 @@ static void icside_irqenable_arcin_v6 (struct expansion_card *ec, int irqnr)
 	struct icside_state *state = ec->irq_data;
 	void __iomem *base = state->irq_port;
 
-	state->enabled = 1;
+	writeb(0, base + ICS_ARCIN_V6_INTROFFSET_1);
+	readb(base + ICS_ARCIN_V6_INTROFFSET_2);
 
-	switch (state->channel) {
-	case 0:
-		writeb(0, base + ICS_ARCIN_V6_INTROFFSET_1);
-		readb(base + ICS_ARCIN_V6_INTROFFSET_2);
-		break;
-	case 1:
-		writeb(0, base + ICS_ARCIN_V6_INTROFFSET_2);
-		readb(base + ICS_ARCIN_V6_INTROFFSET_1);
-		break;
-	}
+	writeb(0, base + ICS_ARCIN_V6_INTROFFSET_2);
+	readb(base + ICS_ARCIN_V6_INTROFFSET_1);
 }
 
 /* Prototype: icside_irqdisable_arcin_v6 (struct expansion_card *ec, int irqnr)
@@ -137,8 +128,6 @@ static void icside_irqdisable_arcin_v6 (struct expansion_card *ec, int irqnr)
 {
 	struct icside_state *state = ec->irq_data;
 
-	state->enabled = 0;
-
 	readb(state->irq_port + ICS_ARCIN_V6_INTROFFSET_1);
 	readb(state->irq_port + ICS_ARCIN_V6_INTROFFSET_2);
 }
@@ -160,44 +149,6 @@ static const expansioncard_ops_t icside_ops_arcin_v6 = {
 	.irqpending	= icside_irqpending_arcin_v6,
 };
 
-/*
- * Handle routing of interrupts.  This is called before
- * we write the command to the drive.
- */
-static void icside_maskproc(ide_drive_t *drive, int mask)
-{
-	ide_hwif_t *hwif = drive->hwif;
-	struct expansion_card *ec = ECARD_DEV(hwif->dev);
-	struct icside_state *state = ecard_get_drvdata(ec);
-	unsigned long flags;
-
-	local_irq_save(flags);
-
-	state->channel = hwif->channel;
-
-	if (state->enabled && !mask) {
-		switch (hwif->channel) {
-		case 0:
-			writeb(0, state->irq_port + ICS_ARCIN_V6_INTROFFSET_1);
-			readb(state->irq_port + ICS_ARCIN_V6_INTROFFSET_2);
-			break;
-		case 1:
-			writeb(0, state->irq_port + ICS_ARCIN_V6_INTROFFSET_2);
-			readb(state->irq_port + ICS_ARCIN_V6_INTROFFSET_1);
-			break;
-		}
-	} else {
-		readb(state->irq_port + ICS_ARCIN_V6_INTROFFSET_2);
-		readb(state->irq_port + ICS_ARCIN_V6_INTROFFSET_1);
-	}
-
-	local_irq_restore(flags);
-}
-
-static const struct ide_port_ops icside_v6_no_dma_port_ops = {
-	.maskproc		= icside_maskproc,
-};
-
 #ifdef CONFIG_BLK_DEV_IDEDMA_ICS
 /*
  * SG-DMA support.
@@ -275,7 +226,6 @@ static void icside_set_dma_mode(ide_drive_t *drive, const u8 xfer_mode)
 
 static const struct ide_port_ops icside_v6_port_ops = {
 	.set_dma_mode		= icside_set_dma_mode,
-	.maskproc		= icside_maskproc,
 };
 
 static void icside_dma_host_set(ide_drive_t *drive, int on)
@@ -320,11 +270,6 @@ static int icside_dma_setup(ide_drive_t *drive, struct ide_cmd *cmd)
 	BUG_ON(dma_channel_active(ec->dma));
 
 	/*
-	 * Ensure that we have the right interrupt routed.
-	 */
-	icside_maskproc(drive, 0);
-
-	/*
 	 * Route the DMA signals to the correct interface.
 	 */
 	writeb(state->sel | hwif->channel, state->ioc_base);
@@ -381,7 +326,7 @@ static int icside_dma_off_init(ide_hwif_t *hwif, const struct ide_port_info *d)
 	return -EOPNOTSUPP;
 }
 
-static void icside_setup_ports(hw_regs_t *hw, void __iomem *base,
+static void icside_setup_ports(struct ide_hw *hw, void __iomem *base,
 			       struct cardinfo *info, struct expansion_card *ec)
 {
 	unsigned long port = (unsigned long)base + info->dataoffset;
@@ -398,11 +343,11 @@ static void icside_setup_ports(hw_regs_t *hw, void __iomem *base,
 
 	hw->irq = ec->irq;
 	hw->dev = &ec->dev;
-	hw->chipset = ide_acorn;
 }
 
 static const struct ide_port_info icside_v5_port_info = {
 	.host_flags		= IDE_HFLAG_NO_DMA,
+	.chipset		= ide_acorn,
 };
 
 static int __devinit
@@ -410,7 +355,7 @@ icside_register_v5(struct icside_state *state, struct expansion_card *ec)
 {
 	void __iomem *base;
 	struct ide_host *host;
-	hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL };
+	struct ide_hw hw, *hws[] = { &hw };
 	int ret;
 
 	base = ecardm_iomap(ec, ECARD_RES_MEMC, 0, 0);
@@ -431,7 +376,7 @@ icside_register_v5(struct icside_state *state, struct expansion_card *ec)
 
 	icside_setup_ports(&hw, base, &icside_cardinfo_v5, ec);
 
-	host = ide_host_alloc(&icside_v5_port_info, hws);
+	host = ide_host_alloc(&icside_v5_port_info, hws, 1);
 	if (host == NULL)
 		return -ENODEV;
 
@@ -452,11 +397,11 @@ err_free:
 
 static const struct ide_port_info icside_v6_port_info __initdata = {
 	.init_dma		= icside_dma_off_init,
-	.port_ops		= &icside_v6_no_dma_port_ops,
 	.dma_ops		= &icside_v6_dma_ops,
 	.host_flags		= IDE_HFLAG_SERIALIZE | IDE_HFLAG_MMIO,
 	.mwdma_mask		= ATA_MWDMA2,
 	.swdma_mask		= ATA_SWDMA2,
+	.chipset		= ide_acorn,
 };
 
 static int __devinit
@@ -466,7 +411,7 @@ icside_register_v6(struct icside_state *state, struct expansion_card *ec)
 	struct ide_host *host;
 	unsigned int sel = 0;
 	int ret;
-	hw_regs_t hw[2], *hws[] = { &hw[0], &hw[1], NULL, NULL };
+	struct ide_hw hw[2], *hws[] = { &hw[0], &hw[1] };
 	struct ide_port_info d = icside_v6_port_info;
 
 	ioc_base = ecardm_iomap(ec, ECARD_RES_IOCFAST, 0, 0);
@@ -506,7 +451,7 @@ icside_register_v6(struct icside_state *state, struct expansion_card *ec)
 	icside_setup_ports(&hw[0], easi_base, &icside_cardinfo_v6_1, ec);
 	icside_setup_ports(&hw[1], easi_base, &icside_cardinfo_v6_2, ec);
 
-	host = ide_host_alloc(&d, hws);
+	host = ide_host_alloc(&d, hws, 2);
 	if (host == NULL)
 		return -ENODEV;
 
diff --git a/drivers/ide/ide-4drives.c b/drivers/ide/ide-4drives.c
index 78aca75a2c4..979d342c338 100644
--- a/drivers/ide/ide-4drives.c
+++ b/drivers/ide/ide-4drives.c
@@ -25,12 +25,13 @@ static const struct ide_port_info ide_4drives_port_info = {
 	.port_ops		= &ide_4drives_port_ops,
 	.host_flags		= IDE_HFLAG_SERIALIZE | IDE_HFLAG_NO_DMA |
 				  IDE_HFLAG_4DRIVES,
+	.chipset		= ide_4drives,
 };
 
 static int __init ide_4drives_init(void)
 {
 	unsigned long base = 0x1f0, ctl = 0x3f6;
-	hw_regs_t hw, *hws[] = { &hw, &hw, NULL, NULL };
+	struct ide_hw hw, *hws[] = { &hw, &hw };
 
 	if (probe_4drives == 0)
 		return -ENODEV;
@@ -52,9 +53,8 @@ static int __init ide_4drives_init(void)
 
 	ide_std_init_ports(&hw, base, ctl);
 	hw.irq = 14;
-	hw.chipset = ide_4drives;
 
-	return ide_host_add(&ide_4drives_port_info, hws, NULL);
+	return ide_host_add(&ide_4drives_port_info, hws, 2, NULL);
 }
 
 module_init(ide_4drives_init);
diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c
index 757e5956b13..bbdd2547f12 100644
--- a/drivers/ide/ide-atapi.c
+++ b/drivers/ide/ide-atapi.c
@@ -259,7 +259,7 @@ void ide_retry_pc(ide_drive_t *drive)
 	pc->req_xfer = blk_rq_bytes(sense_rq);
 
 	if (drive->media == ide_tape)
-		set_bit(IDE_AFLAG_IGNORE_DSC, &drive->atapi_flags);
+		drive->atapi_flags |= IDE_AFLAG_IGNORE_DSC;
 
 	/*
 	 * Push back the failed request and put request sense on top
diff --git a/drivers/ide/ide-cs.c b/drivers/ide/ide-cs.c
index 9e47f3529d5..527908ff298 100644
--- a/drivers/ide/ide-cs.c
+++ b/drivers/ide/ide-cs.c
@@ -155,6 +155,7 @@ static const struct ide_port_info idecs_port_info = {
 	.port_ops		= &idecs_port_ops,
 	.host_flags		= IDE_HFLAG_NO_DMA,
 	.irq_flags		= IRQF_SHARED,
+	.chipset		= ide_pci,
 };
 
 static struct ide_host *idecs_register(unsigned long io, unsigned long ctl,
@@ -163,7 +164,7 @@ static struct ide_host *idecs_register(unsigned long io, unsigned long ctl,
     struct ide_host *host;
     ide_hwif_t *hwif;
     int i, rc;
-    hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL };
+    struct ide_hw hw, *hws[] = { &hw };
 
     if (!request_region(io, 8, DRV_NAME)) {
 	printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n",
@@ -181,10 +182,9 @@ static struct ide_host *idecs_register(unsigned long io, unsigned long ctl,
     memset(&hw, 0, sizeof(hw));
     ide_std_init_ports(&hw, io, ctl);
     hw.irq = irq;
-    hw.chipset = ide_pci;
     hw.dev = &handle->dev;
 
-    rc = ide_host_add(&idecs_port_info, hws, &host);
+    rc = ide_host_add(&idecs_port_info, hws, 1, &host);
     if (rc)
 	goto out_release;
 
diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c
index c6f7fcfb9d6..6a1de216970 100644
--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
@@ -302,14 +302,12 @@ static const struct drive_list_entry hpa_list[] = {
 	{ NULL,		NULL }
 };
 
-static void idedisk_check_hpa(ide_drive_t *drive)
+static u64 ide_disk_hpa_get_native_capacity(ide_drive_t *drive, int lba48)
 {
-	unsigned long long capacity, set_max;
-	int lba48 = ata_id_lba48_enabled(drive->id);
+	u64 capacity, set_max;
 
 	capacity = drive->capacity64;
-
-	set_max = idedisk_read_native_max_address(drive, lba48);
+	set_max  = idedisk_read_native_max_address(drive, lba48);
 
 	if (ide_in_drive_list(drive->id, hpa_list)) {
 		/*
@@ -320,9 +318,31 @@ static void idedisk_check_hpa(ide_drive_t *drive)
 			set_max--;
 	}
 
+	return set_max;
+}
+
+static u64 ide_disk_hpa_set_capacity(ide_drive_t *drive, u64 set_max, int lba48)
+{
+	set_max = idedisk_set_max_address(drive, set_max, lba48);
+	if (set_max)
+		drive->capacity64 = set_max;
+
+	return set_max;
+}
+
+static void idedisk_check_hpa(ide_drive_t *drive)
+{
+	u64 capacity, set_max;
+	int lba48 = ata_id_lba48_enabled(drive->id);
+
+	capacity = drive->capacity64;
+	set_max  = ide_disk_hpa_get_native_capacity(drive, lba48);
+
 	if (set_max <= capacity)
 		return;
 
+	drive->probed_capacity = set_max;
+
 	printk(KERN_INFO "%s: Host Protected Area detected.\n"
 			 "\tcurrent capacity is %llu sectors (%llu MB)\n"
 			 "\tnative  capacity is %llu sectors (%llu MB)\n",
@@ -330,13 +350,13 @@ static void idedisk_check_hpa(ide_drive_t *drive)
 			 capacity, sectors_to_MB(capacity),
 			 set_max, sectors_to_MB(set_max));
 
-	set_max = idedisk_set_max_address(drive, set_max, lba48);
+	if ((drive->dev_flags & IDE_DFLAG_NOHPA) == 0)
+		return;
 
-	if (set_max) {
-		drive->capacity64 = set_max;
+	set_max = ide_disk_hpa_set_capacity(drive, set_max, lba48);
+	if (set_max)
 		printk(KERN_INFO "%s: Host Protected Area disabled.\n",
 				 drive->name);
-	}
 }
 
 static int ide_disk_get_capacity(ide_drive_t *drive)
@@ -358,6 +378,8 @@ static int ide_disk_get_capacity(ide_drive_t *drive)
 		drive->capacity64 = drive->cyl * drive->head * drive->sect;
 	}
 
+	drive->probed_capacity = drive->capacity64;
+
 	if (lba) {
 		drive->dev_flags |= IDE_DFLAG_LBA;
 
@@ -376,7 +398,7 @@ static int ide_disk_get_capacity(ide_drive_t *drive)
 		       "%llu sectors (%llu MB)\n",
 		       drive->name, (unsigned long long)drive->capacity64,
 		       sectors_to_MB(drive->capacity64));
-		drive->capacity64 = 1ULL << 28;
+		drive->probed_capacity = drive->capacity64 = 1ULL << 28;
 	}
 
 	if