Gitweb:     
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=5d728824efeda61d304153bfcf1378a3c18b7d70
Commit:     5d728824efeda61d304153bfcf1378a3c18b7d70
Parent:     4447d35156169cf136e829eb6b5cac2d6370f2d9
Author:     Tejun Heo <[EMAIL PROTECTED]>
AuthorDate: Tue Apr 17 23:44:08 2007 +0900
Committer:  Jeff Garzik <[EMAIL PROTECTED]>
CommitDate: Sat Apr 28 14:16:06 2007 -0400

    libata: convert the remaining PATA drivers to new init model
    
    Convert pdc_adma, pata_cs5520, pata_isapnp, pata_ixp4xx_cf,
    pata_legacy, pata_mpc52xx, pata_mpiix, pata_pcmcia, pata_pdc2027x,
    pata_platform, pata_qdi, pata_scc and pata_winbond to new init model.
    
    * init_one()'s now follow more consistent init order
    
    * cs5520 now registers one host with two ports, not two hosts.  If any
      of the two ports are disabled, it's made dummy as other drivers do.
    
    Tested pdc_adma and pata_legacy.  Both are as broken as before.  The
    rest are compile tested only.
    
    Signed-off-by: Tejun Heo <[EMAIL PROTECTED]>
    Signed-off-by: Jeff Garzik <[EMAIL PROTECTED]>
---
 drivers/ata/pata_cs5520.c    |  130 +++++++++++++++++++++++-------------------
 drivers/ata/pata_isapnp.c    |   43 +++++++-------
 drivers/ata/pata_ixp4xx_cf.c |   39 ++++++-------
 drivers/ata/pata_legacy.c    |   38 ++++++------
 drivers/ata/pata_mpc52xx.c   |   46 +++++++--------
 drivers/ata/pata_mpiix.c     |   36 ++++++------
 drivers/ata/pata_pcmcia.c    |   40 +++++++-------
 drivers/ata/pata_pdc2027x.c  |   98 ++++++++++++-------------------
 drivers/ata/pata_platform.c  |   43 +++++++-------
 drivers/ata/pata_qdi.c       |   45 +++++++--------
 drivers/ata/pata_scc.c       |   51 +++++-----------
 drivers/ata/pata_winbond.c   |   97 +++++++++++++++----------------
 drivers/ata/pdc_adma.c       |   85 +++++++++++-----------------
 13 files changed, 362 insertions(+), 429 deletions(-)

diff --git a/drivers/ata/pata_cs5520.c b/drivers/ata/pata_cs5520.c
index b5b27ba..79bef0d 100644
--- a/drivers/ata/pata_cs5520.c
+++ b/drivers/ata/pata_cs5520.c
@@ -186,7 +186,6 @@ static struct ata_port_operations cs5520_port_ops = {
        .qc_issue               = ata_qc_issue_prot,
        .data_xfer              = ata_data_xfer,
 
-       .irq_handler            = ata_interrupt,
        .irq_clear              = ata_bmdma_irq_clear,
        .irq_on                 = ata_irq_on,
        .irq_ack                = ata_irq_ack,
@@ -194,91 +193,104 @@ static struct ata_port_operations cs5520_port_ops = {
        .port_start             = ata_port_start,
 };
 
-static int __devinit cs5520_init_one(struct pci_dev *dev, const struct 
pci_device_id *id)
+static int __devinit cs5520_init_one(struct pci_dev *pdev, const struct 
pci_device_id *id)
 {
+       struct ata_port_info pi = {
+               .flags          = ATA_FLAG_SLAVE_POSS,
+               .pio_mask       = 0x1f,
+               .port_ops       = &cs5520_port_ops,
+       };
+       const struct ata_port_info *ppi[2];
        u8 pcicfg;
-       void __iomem *iomap[5];
-       static struct ata_probe_ent probe[2];
-       int ports = 0;
+       void *iomap[5];
+       struct ata_host *host;
+       struct ata_ioports *ioaddr;
+       int i, rc;
 
        /* IDE port enable bits */
-       pci_read_config_byte(dev, 0x60, &pcicfg);
+       pci_read_config_byte(pdev, 0x60, &pcicfg);
 
        /* Check if the ATA ports are enabled */
        if ((pcicfg & 3) == 0)
                return -ENODEV;
 
+       ppi[0] = ppi[1] = &ata_dummy_port_info;
+       if (pcicfg & 1)
+               ppi[0] = &pi;
+       if (pcicfg & 2)
+               ppi[1] = &pi;
+
        if ((pcicfg & 0x40) == 0) {
-               printk(KERN_WARNING DRV_NAME ": DMA mode disabled. 
Enabling.\n");
-               pci_write_config_byte(dev, 0x60, pcicfg | 0x40);
+               dev_printk(KERN_WARNING, &pdev->dev,
+                          "DMA mode disabled. Enabling.\n");
+               pci_write_config_byte(pdev, 0x60, pcicfg | 0x40);
        }
 
+       pi.mwdma_mask = id->driver_data;
+
+       host = ata_host_alloc_pinfo(&pdev->dev, ppi, 2);
+       if (!host)
+               return -ENOMEM;
+
        /* Perform set up for DMA */
-       if (pci_enable_device_bars(dev, 1<<2)) {
+       if (pci_enable_device_bars(pdev, 1<<2)) {
                printk(KERN_ERR DRV_NAME ": unable to configure BAR2.\n");
                return -ENODEV;
        }
-       pci_set_master(dev);
-       if (pci_set_dma_mask(dev, DMA_32BIT_MASK)) {
+
+       if (pci_set_dma_mask(pdev, DMA_32BIT_MASK)) {
                printk(KERN_ERR DRV_NAME ": unable to configure DMA mask.\n");
                return -ENODEV;
        }
-       if (pci_set_consistent_dma_mask(dev, DMA_32BIT_MASK)) {
+       if (pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK)) {
                printk(KERN_ERR DRV_NAME ": unable to configure consistent DMA 
mask.\n");
                return -ENODEV;
        }
 
-       /* Map IO ports */
-       iomap[0] = devm_ioport_map(&dev->dev, 0x1F0, 8);
-       iomap[1] = devm_ioport_map(&dev->dev, 0x3F6, 1);
-       iomap[2] = devm_ioport_map(&dev->dev, 0x170, 8);
-       iomap[3] = devm_ioport_map(&dev->dev, 0x376, 1);
-       iomap[4] = pcim_iomap(dev, 2, 0);
+       /* Map IO ports and initialize host accordingly */
+       iomap[0] = devm_ioport_map(&pdev->dev, 0x1F0, 8);
+       iomap[1] = devm_ioport_map(&pdev->dev, 0x3F6, 1);
+       iomap[2] = devm_ioport_map(&pdev->dev, 0x170, 8);
+       iomap[3] = devm_ioport_map(&pdev->dev, 0x376, 1);
+       iomap[4] = pcim_iomap(pdev, 2, 0);
 
        if (!iomap[0] || !iomap[1] || !iomap[2] || !iomap[3] || !iomap[4])
                return -ENOMEM;
 
-       /* We have to do our own plumbing as the PCI setup for this
-          chipset is non-standard so we can't punt to the libata code */
-
-       INIT_LIST_HEAD(&probe[0].node);
-       probe[0].dev = pci_dev_to_dev(dev);
-       probe[0].port_ops = &cs5520_port_ops;
-       probe[0].sht = &cs5520_sht;
-       probe[0].pio_mask = 0x1F;
-       probe[0].mwdma_mask = id->driver_data;
-       probe[0].irq = 14;
-       probe[0].irq_flags = 0;
-       probe[0].port_flags = ATA_FLAG_SLAVE_POSS|ATA_FLAG_SRST;
-       probe[0].n_ports = 1;
-       probe[0].port[0].cmd_addr = iomap[0];
-       probe[0].port[0].ctl_addr = iomap[1];
-       probe[0].port[0].altstatus_addr = iomap[1];
-       probe[0].port[0].bmdma_addr = iomap[4];
-
-       /* The secondary lurks at different addresses but is otherwise
-          the same beastie */
-
-       probe[1] = probe[0];
-       INIT_LIST_HEAD(&probe[1].node);
-       probe[1].irq = 15;
-       probe[1].port[0].cmd_addr = iomap[2];
-       probe[1].port[0].ctl_addr = iomap[3];
-       probe[1].port[0].altstatus_addr = iomap[3];
-       probe[1].port[0].bmdma_addr = iomap[4] + 8;
-
-       /* Let libata fill in the port details */
-       ata_std_ports(&probe[0].port[0]);
-       ata_std_ports(&probe[1].port[0]);
-
-       /* Now add the ports that are active */
-       if (pcicfg & 1)
-               ports += ata_device_add(&probe[0]);
-       if (pcicfg & 2)
-               ports += ata_device_add(&probe[1]);
-       if (ports)
-               return 0;
-       return -ENODEV;
+       ioaddr = &host->ports[0]->ioaddr;
+       ioaddr->cmd_addr = iomap[0];
+       ioaddr->ctl_addr = iomap[1];
+       ioaddr->altstatus_addr = iomap[1];
+       ioaddr->bmdma_addr = iomap[4];
+       ata_std_ports(ioaddr);
+
+       ioaddr = &host->ports[1]->ioaddr;
+       ioaddr->cmd_addr = iomap[2];
+       ioaddr->ctl_addr = iomap[3];
+       ioaddr->altstatus_addr = iomap[3];
+       ioaddr->bmdma_addr = iomap[4] + 8;
+       ata_std_ports(ioaddr);
+
+       /* activate the host */
+       pci_set_master(pdev);
+       rc = ata_host_start(host);
+       if (rc)
+               return rc;
+
+       for (i = 0; i < 2; i++) {
+               static const int irq[] = { 14, 15 };
+               struct ata_port *ap = host->ports[0];
+
+               if (ata_port_is_dummy(ap))
+                       continue;
+
+               rc = devm_request_irq(&pdev->dev, irq[ap->port_no],
+                                     ata_interrupt, 0, DRV_NAME, host);
+               if (rc)
+                       return rc;
+       }
+
+       return ata_host_register(host, &cs5520_sht);
 }
 
 /**
diff --git a/drivers/ata/pata_isapnp.c b/drivers/ata/pata_isapnp.c
index 2580ab3..d042efd 100644
--- a/drivers/ata/pata_isapnp.c
+++ b/drivers/ata/pata_isapnp.c
@@ -56,7 +56,6 @@ static struct ata_port_operations isapnp_port_ops = {
 
        .data_xfer      = ata_data_xfer,
 
-       .irq_handler    = ata_interrupt,
        .irq_clear      = ata_bmdma_irq_clear,
        .irq_on         = ata_irq_on,
        .irq_ack        = ata_irq_ack,
@@ -75,8 +74,10 @@ static struct ata_port_operations isapnp_port_ops = {
 
 static int isapnp_init_one(struct pnp_dev *idev, const struct pnp_device_id 
*dev_id)
 {
-       struct ata_probe_ent ae;
+       struct ata_host *host;
+       struct ata_port *ap;
        void __iomem *cmd_addr, *ctl_addr;
+       int rc;
 
        if (pnp_port_valid(idev, 0) == 0)
                return -ENODEV;
@@ -85,34 +86,36 @@ static int isapnp_init_one(struct pnp_dev *idev, const 
struct pnp_device_id *dev
        if (pnp_irq_valid(idev, 0) == 0)
                return -ENODEV;
 
+       /* allocate host */
+       host = ata_host_alloc(&idev->dev, 1);
+       if (!host)
+               return -ENOMEM;
+
+       /* acquire resources and fill host */
        cmd_addr = devm_ioport_map(&idev->dev, pnp_port_start(idev, 0), 8);
        if (!cmd_addr)
                return -ENOMEM;
 
-       memset(&ae, 0, sizeof(struct ata_probe_ent));
-       INIT_LIST_HEAD(&ae.node);
-       ae.dev = &idev->dev;
-       ae.port_ops = &isapnp_port_ops;
-       ae.sht = &isapnp_sht;
-       ae.n_ports = 1;
-       ae.pio_mask = 1;                /* ISA so PIO 0 cycles */
-       ae.irq = pnp_irq(idev, 0);
-       ae.irq_flags = 0;
-       ae.port_flags = ATA_FLAG_SLAVE_POSS;
-       ae.port[0].cmd_addr = cmd_addr;
+       ap = host->ports[0];
+
+       ap->ops = &isapnp_port_ops;
+       ap->pio_mask = 1;
+       ap->flags |= ATA_FLAG_SLAVE_POSS;
+
+       ap->ioaddr.cmd_addr = cmd_addr;
 
        if (pnp_port_valid(idev, 1) == 0) {
                ctl_addr = devm_ioport_map(&idev->dev,
                                           pnp_port_start(idev, 1), 1);
-               ae.port[0].altstatus_addr = ctl_addr;
-               ae.port[0].ctl_addr = ctl_addr;
-               ae.port_flags |= ATA_FLAG_SRST;
+               ap->ioaddr.altstatus_addr = ctl_addr;
+               ap->ioaddr.ctl_addr = ctl_addr;
        }
-       ata_std_ports(&ae.port[0]);
 
-       if (ata_device_add(&ae) == 0)
-               return -ENODEV;
-       return 0;
+       ata_std_ports(&ap->ioaddr);
+
+       /* activate */
+       return ata_host_activate(host, pnp_irq(idev, 0), ata_interrupt, 0,
+                                &isapnp_sht);
 }
 
 /**
diff --git a/drivers/ata/pata_ixp4xx_cf.c b/drivers/ata/pata_ixp4xx_cf.c
index 8257af8..420c343 100644
--- a/drivers/ata/pata_ixp4xx_cf.c
+++ b/drivers/ata/pata_ixp4xx_cf.c
@@ -131,7 +131,6 @@ static struct ata_port_operations ixp4xx_port_ops = {
        .data_xfer      = ixp4xx_mmio_data_xfer,
        .cable_detect   = ata_cable_40wire,
 
-       .irq_handler    = ata_interrupt,
        .irq_clear      = ixp4xx_irq_clear,
        .irq_on         = ata_irq_on,
        .irq_ack        = ata_irq_ack,
@@ -174,12 +173,12 @@ static void ixp4xx_setup_port(struct ata_ioports *ioaddr,
 
 static __devinit int ixp4xx_pata_probe(struct platform_device *pdev)
 {
-       int ret;
        unsigned int irq;
        struct resource *cs0, *cs1;
-       struct ata_probe_ent ae;
-
+       struct ata_host *host;
+       struct ata_port *ap;
        struct ixp4xx_pata_data *data = pdev->dev.platform_data;
+       int rc;
 
        cs0 = platform_get_resource(pdev, IORESOURCE_MEM, 0);
        cs1 = platform_get_resource(pdev, IORESOURCE_MEM, 1);
@@ -187,6 +186,12 @@ static __devinit int ixp4xx_pata_probe(struct 
platform_device *pdev)
        if (!cs0 || !cs1)
                return -EINVAL;
 
+       /* allocate host */
+       host = ata_host_alloc(&pdev->dev, 1);
+       if (!host)
+               return -ENOMEM;
+
+       /* acquire resources and fill host */
        pdev->dev.coherent_dma_mask = DMA_32BIT_MASK;
 
        data->cs0 = devm_ioremap(&pdev->dev, cs0->start, 0x1000);
@@ -200,32 +205,22 @@ static __devinit int ixp4xx_pata_probe(struct 
platform_device *pdev)
        *data->cs0_cfg = data->cs0_bits;
        *data->cs1_cfg = data->cs1_bits;
 
-       memset(&ae, 0, sizeof(struct ata_probe_ent));
-       INIT_LIST_HEAD(&ae.node);
+       ap = host->ports[0];
 
-       ae.dev          = &pdev->dev;
-       ae.port_ops     = &ixp4xx_port_ops;
-       ae.sht          = &ixp4xx_sht;
-       ae.n_ports      = 1;
-       ae.pio_mask     = 0x1f; /* PIO4 */
-       ae.irq          = irq;
-       ae.irq_flags    = 0;
-       ae.port_flags   = ATA_FLAG_MMIO | ATA_FLAG_NO_LEGACY
-                       | ATA_FLAG_NO_ATAPI | ATA_FLAG_SRST;
+       ap->ops = &ixp4xx_port_ops;
+       ap->pio_mask = 0x1f; /* PIO4 */
+       ap->flags |= ATA_FLAG_MMIO | ATA_FLAG_NO_LEGACY | ATA_FLAG_NO_ATAPI;
 
        /* run in polling mode if no irq has been assigned */
        if (!irq)
-               ae.port_flags |= ATA_FLAG_PIO_POLLING;
+               ap->flags |= ATA_FLAG_PIO_POLLING;
 
-       ixp4xx_setup_port(&ae.port[0], data);
+       ixp4xx_setup_port(&ap->ioaddr, data);
 
        dev_printk(KERN_INFO, &pdev->dev, "version " DRV_VERSION "\n");
 
-       ret = ata_device_add(&ae);
-       if (ret == 0)
-               return -ENODEV;
-
-       return 0;
+       /* activate host */
+       return ata_host_activate(host, irq, ata_interrupt, 0, &ixp4xx_sht);
 }
 
 static __devexit int ixp4xx_pata_remove(struct platform_device *dev)
diff --git a/drivers/ata/pata_legacy.c b/drivers/ata/pata_legacy.c
index 0b1749a..7070992 100644
--- a/drivers/ata/pata_legacy.c
+++ b/drivers/ata/pata_legacy.c
@@ -716,7 +716,8 @@ static struct ata_port_operations opti82c46x_port_ops = {
 static __init int legacy_init_one(int port, unsigned long io, unsigned long 
ctrl, int irq)
 {
        struct legacy_data *ld = &legacy_data[nr_legacy_host];
-       struct ata_probe_ent ae;
+       struct ata_host *host;
+       struct ata_port *ap;
        struct platform_device *pdev;
        struct ata_port_operations *ops = &legacy_port_ops;
        void __iomem *io_addr, *ctrl_addr;
@@ -798,24 +799,23 @@ static __init int legacy_init_one(int port, unsigned long 
io, unsigned long ctrl
        if (ops == &legacy_port_ops && (autospeed & mask))
                ops = &simple_port_ops;
 
-       memset(&ae, 0, sizeof(struct ata_probe_ent));
-       INIT_LIST_HEAD(&ae.node);
-       ae.dev = &pdev->dev;
-       ae.port_ops = ops;
-       ae.sht = &legacy_sht;
-       ae.n_ports = 1;
-       ae.pio_mask = pio_modes;
-       ae.irq = irq;
-       ae.irq_flags = 0;
-       ae.port_flags = ATA_FLAG_SLAVE_POSS|ATA_FLAG_SRST|iordy;
-       ae.port[0].cmd_addr = io_addr;
-       ae.port[0].altstatus_addr = ctrl_addr;
-       ae.port[0].ctl_addr = ctrl_addr;
-       ata_std_ports(&ae.port[0]);
-       ae.private_data = ld;
-
-       ret = -ENODEV;
-       if (!ata_device_add(&ae))
+       ret = -ENOMEM;
+       host = ata_host_alloc(&pdev->dev, 1);
+       if (!host)
+               goto fail;
+       ap = host->ports[0];
+
+       ap->ops = ops;
+       ap->pio_mask = pio_modes;
+       ap->flags |= ATA_FLAG_SLAVE_POSS | iordy;
+       ap->ioaddr.cmd_addr = io_addr;
+       ap->ioaddr.altstatus_addr = ctrl_addr;
+       ap->ioaddr.ctl_addr = ctrl_addr;
+       ata_std_ports(&ap->ioaddr);
+       ap->private_data = ld;
+
+       ret = ata_host_activate(host, irq, ata_interrupt, 0, &legacy_sht);
+       if (ret)
                goto fail;
 
        legacy_host[nr_legacy_host++] = dev_get_drvdata(&pdev->dev);
diff --git a/drivers/ata/pata_mpc52xx.c b/drivers/ata/pata_mpc52xx.c
index 77b5732..9587a89 100644
--- a/drivers/ata/pata_mpc52xx.c
+++ b/drivers/ata/pata_mpc52xx.c
@@ -301,35 +301,33 @@ static struct ata_port_operations mpc52xx_ata_port_ops = {
        .qc_prep                = ata_qc_prep,
        .qc_issue               = ata_qc_issue_prot,
        .data_xfer              = ata_data_xfer,
-       .irq_handler            = ata_interrupt,
        .irq_clear              = ata_bmdma_irq_clear,
        .irq_on                 = ata_irq_on,
        .irq_ack                = ata_irq_ack,
        .port_start             = ata_port_start,
 };
 
-static struct ata_probe_ent mpc52xx_ata_probe_ent = {
-       .port_ops       = &mpc52xx_ata_port_ops,
-       .sht            = &mpc52xx_ata_sht,
-       .n_ports        = 1,
-       .pio_mask       = 0x1f,         /* Up to PIO4 */
-       .mwdma_mask     = 0x00,         /* No MWDMA   */
-       .udma_mask      = 0x00,         /* No UDMA    */
-       .port_flags     = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
-       .irq_flags      = 0,
-};
-
 static int __devinit
 mpc52xx_ata_init_one(struct device *dev, struct mpc52xx_ata_priv *priv)
 {
-       struct ata_probe_ent *ae = &mpc52xx_ata_probe_ent;
-       struct ata_ioports *aio = &ae->port[0];
-       int rv;
-
-       INIT_LIST_HEAD(&ae->node);
-       ae->dev = dev;
-       ae->irq = priv->ata_irq;
-
+       struct ata_host *host;
+       struct ata_port *ap;
+       struct ata_ioports *aio;
+       int rc;
+
+       host = ata_host_alloc(dev, 1);
+       if (!host)
+               return -ENOMEM;
+
+       ap = host->ports[0];
+       ap->flags               |= ATA_FLAG_SLAVE_POSS;
+       ap->pio_mask            = 0x1f; /* Up to PIO4 */
+       ap->mwdma_mask          = 0x00; /* No MWDMA   */
+       ap->udma_mask           = 0x00; /* No UDMA    */
+       ap->ops                 = &mpc52xx_ata_port_ops;
+       host->private_data      = priv;
+
+       aio = &ap->ioaddr;
        aio->cmd_addr           = NULL; /* Don't have a classic reg block */
        aio->altstatus_addr     = &priv->ata_regs->tf_control;
        aio->ctl_addr           = &priv->ata_regs->tf_control;
@@ -344,11 +342,9 @@ mpc52xx_ata_init_one(struct device *dev, struct 
mpc52xx_ata_priv *priv)
        aio->status_addr        = &priv->ata_regs->tf_command;
        aio->command_addr       = &priv->ata_regs->tf_command;
 
-       ae->private_data = priv;
-
-       rv = ata_device_add(ae);
-
-       return rv ? 0 : -EINVAL;
+       /* activate host */
+       return ata_host_activate(host, priv->ata_irq, ata_interrupt, 0,
+                                &mpc52xx_ata_sht);
 }
 
 static struct mpc52xx_ata_priv *
diff --git a/drivers/ata/pata_mpiix.c b/drivers/ata/pata_mpiix.c
index 1718eac..987c5fa 100644
--- a/drivers/ata/pata_mpiix.c
+++ b/drivers/ata/pata_mpiix.c
@@ -190,7 +190,6 @@ static struct ata_port_operations mpiix_port_ops = {
        .qc_issue       = mpiix_qc_issue_prot,
        .data_xfer      = ata_data_xfer,
 
-       .irq_handler    = ata_interrupt,
        .irq_clear      = ata_bmdma_irq_clear,
        .irq_on         = ata_irq_on,
        .irq_ack        = ata_irq_ack,
@@ -201,8 +200,9 @@ static struct ata_port_operations mpiix_port_ops = {
 static int mpiix_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 {
        /* Single threaded by the PCI probe logic */
-       static struct ata_probe_ent probe;
        static int printed_version;
+       struct ata_host *host;
+       struct ata_port *ap;
        void __iomem *cmd_addr, *ctl_addr;
        u16 idetim;
        int irq;
@@ -210,6 +210,10 @@ static int mpiix_init_one(struct pci_dev *dev, const 
struct pci_device_id *id)
        if (!printed_version++)
                dev_printk(KERN_DEBUG, &dev->dev, "version " DRV_VERSION "\n");
 
+       host = ata_host_alloc(&dev->dev, 1);
+       if (!host)
+               return -ENOMEM;
+
        /* MPIIX has many functions which can be turned on or off according
           to other devices present. Make sure IDE is enabled before we try
           and use it */
@@ -238,27 +242,21 @@ static int mpiix_init_one(struct pci_dev *dev, const 
struct pci_device_id *id)
           without BARs set fools the setup.  #2 If you pci_disable_device
           the MPIIX your box goes castors up */
 
-       INIT_LIST_HEAD(&probe.node);
-       probe.dev = pci_dev_to_dev(dev);
-       probe.port_ops = &mpiix_port_ops;
-       probe.sht = &mpiix_sht;
-       probe.pio_mask = 0x1F;
-       probe.irq_flags = IRQF_SHARED;
-       probe.port_flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST;
-       probe.n_ports = 1;
+       ap = host->ports[0];
+       ap->ops = &mpiix_port_ops;
+       ap->pio_mask = 0x1F;
+       ap->flags |= ATA_FLAG_SLAVE_POSS;
 
-       probe.irq = irq;
-       probe.port[0].cmd_addr = cmd_addr;
-       probe.port[0].ctl_addr = ctl_addr;
-       probe.port[0].altstatus_addr = ctl_addr;
+       ap->ioaddr.cmd_addr = cmd_addr;
+       ap->ioaddr.ctl_addr = ctl_addr;
+       ap->ioaddr.altstatus_addr = ctl_addr;
 
        /* Let libata fill in the port details */
-       ata_std_ports(&probe.port[0]);
+       ata_std_ports(&ap->ioaddr);
 
-       /* Now add the port that is active */
-       if (ata_device_add(&probe))
-               return 0;
-       return -ENODEV;
+       /* activate host */
+       return ata_host_activate(host, irq, ata_interrupt, IRQF_SHARED,
+                                &mpiix_sht);
 }
 
 static const struct pci_device_id mpiix[] = {
diff --git a/drivers/ata/pata_pcmcia.c b/drivers/ata/pata_pcmcia.c
index 171da0a..75dc847 100644
--- a/drivers/ata/pata_pcmcia.c
+++ b/drivers/ata/pata_pcmcia.c
@@ -125,7 +125,6 @@ static struct ata_port_operations pcmcia_port_ops = {
 
        .data_xfer      = ata_data_xfer_noirq,
 
-       .irq_handler    = ata_interrupt,
        .irq_clear      = ata_bmdma_irq_clear,
        .irq_on         = ata_irq_on,
        .irq_ack        = ata_irq_ack,
@@ -146,7 +145,8 @@ do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto 
cs_failed; } while (0)
 
 static int pcmcia_init_one(struct pcmcia_device *pdev)
 {
-       struct ata_probe_ent ae;
+       struct ata_host *host;
+       struct ata_port *ap;
        struct ata_pcmcia_info *info;
        tuple_t tuple;
        struct {
@@ -290,24 +290,24 @@ next_entry:
         *      Having done the PCMCIA plumbing the ATA side is relatively
         *      sane.
         */
-
-       memset(&ae, 0, sizeof(struct ata_probe_ent));
-       INIT_LIST_HEAD(&ae.node);
-       ae.dev = &pdev->dev;
-       ae.port_ops = &pcmcia_port_ops;
-       ae.sht = &pcmcia_sht;
-       ae.n_ports = 1;
-       ae.pio_mask = 1;                /* ISA so PIO 0 cycles */
-       ae.irq = pdev->irq.AssignedIRQ;
-       ae.irq_flags = IRQF_SHARED;
-       ae.port_flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST;
-       ae.port[0].cmd_addr = io_addr;
-       ae.port[0].altstatus_addr = ctl_addr;
-       ae.port[0].ctl_addr = ctl_addr;
-       ata_std_ports(&ae.port[0]);
-
-       ret = -ENODEV;
-       if (ata_device_add(&ae) == 0)
+       ret = -ENOMEM;
+       host = ata_host_alloc(&pdev->dev, 1);
+       if (!host)
+               goto failed;
+       ap = host->ports[0];
+
+       ap->ops = &pcmcia_port_ops;
+       ap->pio_mask = 1;               /* ISA so PIO 0 cycles */
+       ap->flags |= ATA_FLAG_SLAVE_POSS;
+       ap->ioaddr.cmd_addr = io_addr;
+       ap->ioaddr.altstatus_addr = ctl_addr;
+       ap->ioaddr.ctl_addr = ctl_addr;
+       ata_std_ports(&ap->ioaddr);
+
+       /* activate */
+       ret = ata_host_activate(host, pdev->irq.AssignedIRQ, ata_interrupt,
+                               IRQF_SHARED, &pcmcia_sht);
+       if (ret)
                goto failed;
 
        info->ndev = 1;
diff --git a/drivers/ata/pata_pdc2027x.c b/drivers/ata/pata_pdc2027x.c
index 8261f4f..a61cbc1 100644
--- a/drivers/ata/pata_pdc2027x.c
+++ b/drivers/ata/pata_pdc2027x.c
@@ -171,7 +171,6 @@ static struct ata_port_operations pdc2027x_pata100_ops = {
        .post_internal_cmd      = ata_bmdma_post_internal_cmd,
        .cable_detect           = pdc2027x_cable_detect,
 
-       .irq_handler            = ata_interrupt,
        .irq_clear              = ata_bmdma_irq_clear,
        .irq_on                 = ata_irq_on,
        .irq_ack                = ata_irq_ack,
@@ -207,7 +206,6 @@ static struct ata_port_operations pdc2027x_pata133_ops = {
        .post_internal_cmd      = ata_bmdma_post_internal_cmd,
        .cable_detect           = pdc2027x_cable_detect,
 
-       .irq_handler            = ata_interrupt,
        .irq_clear              = ata_bmdma_irq_clear,
        .irq_on                 = ata_irq_on,
        .irq_ack                = ata_irq_ack,
@@ -218,7 +216,6 @@ static struct ata_port_operations pdc2027x_pata133_ops = {
 static struct ata_port_info pdc2027x_port_info[] = {
        /* PDC_UDMA_100 */
        {
-               .sht            = &pdc2027x_sht,
                .flags          = ATA_FLAG_NO_LEGACY | ATA_FLAG_SLAVE_POSS |
                                  ATA_FLAG_MMIO,
                .pio_mask       = 0x1f, /* pio0-4 */
@@ -228,7 +225,6 @@ static struct ata_port_info pdc2027x_port_info[] = {
        },
        /* PDC_UDMA_133 */
        {
-               .sht            = &pdc2027x_sht,
                .flags          = ATA_FLAG_NO_LEGACY | ATA_FLAG_SLAVE_POSS |
                                  ATA_FLAG_MMIO,
                .pio_mask       = 0x1f, /* pio0-4 */
@@ -555,12 +551,12 @@ static int pdc2027x_check_atapi_dma(struct ata_queued_cmd 
*qc)
 
 /**
  * pdc_read_counter - Read the ctr counter
- * @probe_ent: for the port address
+ * @host: target ATA host
  */
 
-static long pdc_read_counter(struct ata_probe_ent *probe_ent)
+static long pdc_read_counter(struct ata_host *host)
 {
-       void __iomem *mmio_base = probe_ent->iomap[PDC_MMIO_BAR];
+       void __iomem *mmio_base = host->iomap[PDC_MMIO_BAR];
        long counter;
        int retry = 1;
        u32 bccrl, bccrh, bccrlv, bccrhv;
@@ -598,12 +594,12 @@ retry:
  * adjust_pll - Adjust the PLL input clock in Hz.
  *
  * @pdc_controller: controller specific information
- * @probe_ent: For the port address
+ * @host: target ATA host
  * @pll_clock: The input of PLL in HZ
  */
-static void pdc_adjust_pll(struct ata_probe_ent *probe_ent, long pll_clock, 
unsigned int board_idx)
+static void pdc_adjust_pll(struct ata_host *host, long pll_clock, unsigned int 
board_idx)
 {
-       void __iomem *mmio_base = probe_ent->iomap[PDC_MMIO_BAR];
+       void __iomem *mmio_base = host->iomap[PDC_MMIO_BAR];
        u16 pll_ctl;
        long pll_clock_khz = pll_clock / 1000;
        long pout_required = board_idx? PDC_133_MHZ:PDC_100_MHZ;
@@ -683,19 +679,19 @@ static void pdc_adjust_pll(struct ata_probe_ent 
*probe_ent, long pll_clock, unsi
 
 /**
  * detect_pll_input_clock - Detect the PLL input clock in Hz.
- * @probe_ent: for the port address
+ * @host: target ATA host
  * Ex. 16949000 on 33MHz PCI bus for pdc20275.
  *     Half of the PCI clock.
  */
-static long pdc_detect_pll_input_clock(struct ata_probe_ent *probe_ent)
+static long pdc_detect_pll_input_clock(struct ata_host *host)
 {
-       void __iomem *mmio_base = probe_ent->iomap[PDC_MMIO_BAR];
+       void __iomem *mmio_base = host->iomap[PDC_MMIO_BAR];
        u32 scr;
        long start_count, end_count;
        long pll_clock;
 
        /* Read current counter value */
-       start_count = pdc_read_counter(probe_ent);
+       start_count = pdc_read_counter(host);
 
        /* Start the test mode */
        scr = readl(mmio_base + PDC_SYS_CTL);
@@ -707,7 +703,7 @@ static long pdc_detect_pll_input_clock(struct ata_probe_ent 
*probe_ent)
        mdelay(100);
 
        /* Read the counter values again */
-       end_count = pdc_read_counter(probe_ent);
+       end_count = pdc_read_counter(host);
 
        /* Stop the test mode */
        scr = readl(mmio_base + PDC_SYS_CTL);
@@ -726,11 +722,10 @@ static long pdc_detect_pll_input_clock(struct 
ata_probe_ent *probe_ent)
 
 /**
  * pdc_hardware_init - Initialize the hardware.
- * @pdev: instance of pci_dev found
- * @pdc_controller: controller specific information
- * @pe:  for the port address
+ * @host: target ATA host
+ * @board_idx: board identifier
  */
-static int pdc_hardware_init(struct pci_dev *pdev, struct ata_probe_ent *pe, 
unsigned int board_idx)
+static int pdc_hardware_init(struct ata_host *host, unsigned int board_idx)
 {
        long pll_clock;
 
@@ -740,15 +735,15 @@ static int pdc_hardware_init(struct pci_dev *pdev, struct 
ata_probe_ent *pe, uns
         * Ex. 25MHz or 40MHz, we have to adjust the cycle_time.
         * The pdc20275 controller employs PLL circuit to help correct timing 
registers setting.
         */
-       pll_clock = pdc_detect_pll_input_clock(pe);
+       pll_clock = pdc_detect_pll_input_clock(host);
 
        if (pll_clock < 0) /* counter overflow? Try again. */
-               pll_clock = pdc_detect_pll_input_clock(pe);
+               pll_clock = pdc_detect_pll_input_clock(host);
 
-       dev_printk(KERN_INFO, &pdev->dev, "PLL input clock %ld kHz\n", 
pll_clock/1000);
+       dev_printk(KERN_INFO, host->dev, "PLL input clock %ld kHz\n", 
pll_clock/1000);
 
        /* Adjust PLL control register */
-       pdc_adjust_pll(pe, pll_clock, board_idx);
+       pdc_adjust_pll(host, pll_clock, board_idx);
 
        return 0;
 }
@@ -780,8 +775,7 @@ static void pdc_ata_setup_port(struct ata_ioports *port, 
void __iomem *base)
  * Called when an instance of PCI adapter is inserted.
  * This function checks whether the hardware is supported,
  * initialize hardware and register an instance of ata_host to
- * libata by providing struct ata_probe_ent and ata_device_add().
- * (implements struct pci_driver.probe() )
+ * libata.  (implements struct pci_driver.probe() )
  *
  * @pdev: instance of pci_dev found
  * @ent:  matching entry in the id_tbl[]
@@ -790,14 +784,21 @@ static int __devinit pdc2027x_init_one(struct pci_dev 
*pdev, const struct pci_de
 {
        static int printed_version;
        unsigned int board_idx = (unsigned int) ent->driver_data;
-
-       struct ata_probe_ent *probe_ent;
+       const struct ata_port_info *ppi[] =
+               { &pdc2027x_port_info[board_idx], NULL };
+       struct ata_host *host;
        void __iomem *mmio_base;
        int rc;
 
        if (!printed_version++)
                dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
 
+       /* alloc host */
+       host = ata_host_alloc_pinfo(&pdev->dev, ppi, 2);
+       if (!host)
+               return -ENOMEM;
+
+       /* acquire resources and fill host */
        rc = pcim_enable_device(pdev);
        if (rc)
                return rc;
@@ -805,6 +806,7 @@ static int __devinit pdc2027x_init_one(struct pci_dev 
*pdev, const struct pci_de
        rc = pcim_iomap_regions(pdev, 1 << PDC_MMIO_BAR, DRV_NAME);
        if (rc)
                return rc;
+       host->iomap = pcim_iomap_table(pdev);
 
        rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
        if (rc)
@@ -814,46 +816,22 @@ static int __devinit pdc2027x_init_one(struct pci_dev 
*pdev, const struct pci_de
        if (rc)
                return rc;
 
-       /* Prepare the probe entry */
-       probe_ent = devm_kzalloc(&pdev->dev, sizeof(*probe_ent), GFP_KERNEL);
-       if (probe_ent == NULL)
-               return -ENOMEM;
-
-       probe_ent->dev = pci_dev_to_dev(pdev);
-       INIT_LIST_HEAD(&probe_ent->node);
-
-       probe_ent->sht          = pdc2027x_port_info[board_idx].sht;
-       probe_ent->port_flags   = pdc2027x_port_info[board_idx].flags;
-       probe_ent->pio_mask     = pdc2027x_port_info[board_idx].pio_mask;
-       probe_ent->mwdma_mask   = pdc2027x_port_info[board_idx].mwdma_mask;
-       probe_ent->udma_mask    = pdc2027x_port_info[board_idx].udma_mask;
-       probe_ent->port_ops     = pdc2027x_port_info[board_idx].port_ops;
+       mmio_base = host->iomap[PDC_MMIO_BAR];
 
-               probe_ent->irq = pdev->irq;
-               probe_ent->irq_flags = IRQF_SHARED;
-       probe_ent->iomap = pcim_iomap_table(pdev);
+       pdc_ata_setup_port(&host->ports[0]->ioaddr, mmio_base + 0x17c0);
+       host->ports[0]->ioaddr.bmdma_addr = mmio_base + 0x1000;
+       pdc_ata_setup_port(&host->ports[1]->ioaddr, mmio_base + 0x15c0);
+       host->ports[1]->ioaddr.bmdma_addr = mmio_base + 0x1008;
 
-       mmio_base = probe_ent->iomap[PDC_MMIO_BAR];
-
-       pdc_ata_setup_port(&probe_ent->port[0], mmio_base + 0x17c0);
-       probe_ent->port[0].bmdma_addr = mmio_base + 0x1000;
-       pdc_ata_setup_port(&probe_ent->port[1], mmio_base + 0x15c0);
-       probe_ent->port[1].bmdma_addr = mmio_base + 0x1008;
-
-       probe_ent->n_ports = 2;
-
-       pci_set_master(pdev);
        //pci_enable_intx(pdev);
 
        /* initialize adapter */
-       if (pdc_hardware_init(pdev, probe_ent, board_idx) != 0)
+       if (pdc_hardware_init(host, board_idx) != 0)
                return -EIO;
 
-       if (!ata_device_add(probe_ent))
-               return -ENODEV;
-
-       devm_kfree(&pdev->dev, probe_ent);
-       return 0;
+       pci_set_master(pdev);
+       return ata_host_activate(host, pdev->irq, ata_interrupt, IRQF_SHARED,
+                                &pdc2027x_sht);
 }
 
 /**
diff --git a/drivers/ata/pata_platform.c b/drivers/ata/pata_platform.c
index 507eb1e..a0a650c 100644
--- a/drivers/ata/pata_platform.c
+++ b/drivers/ata/pata_platform.c
@@ -87,7 +87,6 @@ static struct ata_port_operations pata_platform_port_ops = {
 
        .data_xfer              = ata_data_xfer_noirq,
 
-       .irq_handler            = ata_interrupt,
        .irq_clear              = ata_bmdma_irq_clear,
        .irq_on                 = ata_irq_on,
        .irq_ack                = ata_irq_ack,
@@ -136,7 +135,8 @@ static void pata_platform_setup_port(struct ata_ioports 
*ioaddr,
 static int __devinit pata_platform_probe(struct platform_device *pdev)
 {
        struct resource *io_res, *ctl_res;
-       struct ata_probe_ent ae;
+       struct ata_host *host;
+       struct ata_port *ap;
        unsigned int mmio;
 
        /*
@@ -176,44 +176,41 @@ static int __devinit pata_platform_probe(struct 
platform_device *pdev)
        /*
         * Now that that's out of the way, wire up the port..
         */
-       memset(&ae, 0, sizeof(struct ata_probe_ent));
-       INIT_LIST_HEAD(&ae.node);
-       ae.dev = &pdev->dev;
-       ae.port_ops = &pata_platform_port_ops;
-       ae.sht = &pata_platform_sht;
-       ae.n_ports = 1;
-       ae.pio_mask = pio_mask;
-       ae.irq = platform_get_irq(pdev, 0);
-       ae.irq_flags = 0;
-       ae.port_flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST;
+       host = ata_host_alloc(&pdev->dev, 1);
+       if (!host)
+               return -ENOMEM;
+       ap = host->ports[0];
+
+       ap->ops = &pata_platform_port_ops;
+       ap->pio_mask = pio_mask;
+       ap->flags |= ATA_FLAG_SLAVE_POSS;
 
        /*
         * Handle the MMIO case
         */
        if (mmio) {
-               ae.port[0].cmd_addr = devm_ioremap(&pdev->dev, io_res->start,
+               ap->ioaddr.cmd_addr = devm_ioremap(&pdev->dev, io_res->start,
                                io_res->end - io_res->start + 1);
-               ae.port[0].ctl_addr = devm_ioremap(&pdev->dev, ctl_res->start,
+               ap->ioaddr.ctl_addr = devm_ioremap(&pdev->dev, ctl_res->start,
                                ctl_res->end - ctl_res->start + 1);
        } else {
-               ae.port[0].cmd_addr = devm_ioport_map(&pdev->dev, io_res->start,
+               ap->ioaddr.cmd_addr = devm_ioport_map(&pdev->dev, io_res->start,
                                io_res->end - io_res->start + 1);
-               ae.port[0].ctl_addr = devm_ioport_map(&pdev->dev, 
ctl_res->start,
+               ap->ioaddr.ctl_addr = devm_ioport_map(&pdev->dev, 
ctl_res->start,
                                ctl_res->end - ctl_res->start + 1);
        }
-       if (!ae.port[0].cmd_addr || !ae.port[0].ctl_addr) {
+       if (!ap->ioaddr.cmd_addr || !ap->ioaddr.ctl_addr) {
                dev_err(&pdev->dev, "failed to map IO/CTL base\n");
                return -ENOMEM;
        }
 
-       ae.port[0].altstatus_addr = ae.port[0].ctl_addr;
+       ap->ioaddr.altstatus_addr = ap->ioaddr.ctl_addr;
 
-       pata_platform_setup_port(&ae.port[0], pdev->dev.platform_data);
+       pata_platform_setup_port(&ap->ioaddr, pdev->dev.platform_data);
 
-       if (unlikely(ata_device_add(&ae) == 0))
-               return -ENODEV;
-
-       return 0;
+       /* activate */
+       return ata_host_activate(host, platform_get_irq(pdev, 0), ata_interrupt,
+                                0, &pata_platform_sht);
 }
 
 /**
diff --git a/drivers/ata/pata_qdi.c b/drivers/ata/pata_qdi.c
index 4447264..27685ce 100644
--- a/drivers/ata/pata_qdi.c
+++ b/drivers/ata/pata_qdi.c
@@ -190,7 +190,6 @@ static struct ata_port_operations qdi6500_port_ops = {
 
        .data_xfer      = qdi_data_xfer,
 
-       .irq_handler    = ata_interrupt,
        .irq_clear      = ata_bmdma_irq_clear,
        .irq_on         = ata_irq_on,
        .irq_ack        = ata_irq_ack,
@@ -219,7 +218,6 @@ static struct ata_port_operations qdi6580_port_ops = {
 
        .data_xfer      = qdi_data_xfer,
 
-       .irq_handler    = ata_interrupt,
        .irq_clear      = ata_bmdma_irq_clear,
        .irq_on         = ata_irq_on,
        .irq_ack        = ata_irq_ack,
@@ -240,8 +238,9 @@ static struct ata_port_operations qdi6580_port_ops = {
 
 static __init int qdi_init_one(unsigned long port, int type, unsigned long io, 
int irq, int fast)
 {
-       struct ata_probe_ent ae;
        struct platform_device *pdev;
+       struct ata_host *host;
+       struct ata_port *ap;
        void __iomem *io_addr, *ctl_addr;
        int ret;
 
@@ -259,34 +258,31 @@ static __init int qdi_init_one(unsigned long port, int 
type, unsigned long io, i
        if (!io_addr || !ctl_addr)
                goto fail;
 
-       memset(&ae, 0, sizeof(struct ata_probe_ent));
-       INIT_LIST_HEAD(&ae.node);
-       ae.dev = &pdev->dev;
+       ret = -ENOMEM;
+       host = ata_host_alloc(&pdev->dev, 1);
+       if (!host)
+               goto fail;
+       ap = host->ports[0];
 
        if (type == 6580) {
-               ae.port_ops = &qdi6580_port_ops;
-               ae.pio_mask = 0x1F;
-               ae.port_flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST;
+               ap->ops = &qdi6580_port_ops;
+               ap->pio_mask = 0x1F;
+               ap->flags |= ATA_FLAG_SLAVE_POSS;
        } else {
-               ae.port_ops = &qdi6500_port_ops;
-               ae.pio_mask = 0x07;     /* Actually PIO3 !IORDY is possible */
-               ae.port_flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST |
-                               ATA_FLAG_NO_IORDY;
+               ap->ops = &qdi6500_port_ops;
+               ap->pio_mask = 0x07;    /* Actually PIO3 !IORDY is possible */
+               ap->flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_NO_IORDY;
        }
 
-       ae.sht = &qdi_sht;
-       ae.n_ports = 1;
-       ae.irq = irq;
-       ae.irq_flags = 0;
-       ae.port[0].cmd_addr = io_addr;
-       ae.port[0].altstatus_addr = ctl_addr;
-       ae.port[0].ctl_addr = ctl_addr;
-       ata_std_ports(&ae.port[0]);
+       ap->ioaddr.cmd_addr = io_addr;
+       ap->ioaddr.altstatus_addr = ctl_addr;
+       ap->ioaddr.ctl_addr = ctl_addr;
+       ata_std_ports(&ap->ioaddr);
 
        /*
         *      Hook in a private data structure per channel
         */
-       ae.private_data = &qdi_data[nr_qdi_host];
+       ap->private_data = &qdi_data[nr_qdi_host];
 
        qdi_data[nr_qdi_host].timing = port;
        qdi_data[nr_qdi_host].fast = fast;
@@ -294,8 +290,9 @@ static __init int qdi_init_one(unsigned long port, int 
type, unsigned long io, i
 
        printk(KERN_INFO DRV_NAME": qd%d at 0x%lx.\n", type, io);
 
-       ret = -ENODEV;
-       if (!ata_device_add(&ae))
+       /* activate */
+       ret = ata_host_activate(host, irq, ata_interrupt, 0, &qdi_sht);
+       if (ret)
                goto fail;
 
        qdi_host[nr_qdi_host++] = dev_get_drvdata(&pdev->dev);
diff --git a/drivers/ata/pata_scc.c b/drivers/ata/pata_scc.c
index f3ed141..5df354d 100644
--- a/drivers/ata/pata_scc.c
+++ b/drivers/ata/pata_scc.c
@@ -1016,7 +1016,6 @@ static const struct ata_port_operations scc_pata_ops = {
        .error_handler          = scc_error_handler,
        .post_internal_cmd      = scc_bmdma_stop,
 
-       .irq_handler            = ata_interrupt,
        .irq_clear              = scc_bmdma_irq_clear,
        .irq_on                 = scc_irq_on,
        .irq_ack                = scc_irq_ack,
@@ -1027,7 +1026,6 @@ static const struct ata_port_operations scc_pata_ops = {
 
 static struct ata_port_info scc_port_info[] = {
        {
-               .sht            = &scc_sht,
                .flags          = ATA_FLAG_SLAVE_POSS | ATA_FLAG_MMIO | 
ATA_FLAG_NO_LEGACY,
                .pio_mask       = 0x1f, /* pio0-4 */
                .mwdma_mask     = 0x00,
@@ -1040,10 +1038,10 @@ static struct ata_port_info scc_port_info[] = {
  *     scc_reset_controller - initialize SCC PATA controller.
  */
 
-static int scc_reset_controller(struct ata_probe_ent *probe_ent)
+static int scc_reset_controller(struct ata_host *host)
 {
-       void __iomem *ctrl_base = probe_ent->iomap[SCC_CTRL_BAR];
-       void __iomem *bmid_base = probe_ent->iomap[SCC_BMID_BAR];
+       void __iomem *ctrl_base = host->iomap[SCC_CTRL_BAR];
+       void __iomem *bmid_base = host->iomap[SCC_BMID_BAR];
        void __iomem *cckctrl_port = ctrl_base + SCC_CTL_CCKCTRL;
        void __iomem *mode_port = ctrl_base + SCC_CTL_MODEREG;
        void __iomem *ecmode_port = ctrl_base + SCC_CTL_ECMODE;
@@ -1104,17 +1102,15 @@ static void scc_setup_ports (struct ata_ioports 
*ioaddr, void __iomem *base)
        ioaddr->command_addr = ioaddr->cmd_addr + SCC_REG_CMD;
 }
 
-static int scc_host_init(struct ata_probe_ent *probe_ent)
+static int scc_host_init(struct ata_host *host)
 {
-       struct pci_dev *pdev = to_pci_dev(probe_ent->dev);
+       struct pci_dev *pdev = to_pci_dev(host->dev);
        int rc;
 
-       rc = scc_reset_controller(probe_ent);
+       rc = scc_reset_controller(host);
        if (rc)
                return rc;
 
-       probe_ent->n_ports = 1;
-
        rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
        if (rc)
                return rc;
@@ -1122,7 +1118,7 @@ static int scc_host_init(struct ata_probe_ent *probe_ent)
        if (rc)
                return rc;
 
-       scc_setup_ports(&probe_ent->port[0], probe_ent->iomap[SCC_BMID_BAR]);
+       scc_setup_ports(&host->ports[0]->ioaddr, host->iomap[SCC_BMID_BAR]);
 
        pci_set_master(pdev);
 
@@ -1145,14 +1141,18 @@ static int scc_init_one (struct pci_dev *pdev, const 
struct pci_device_id *ent)
 {
        static int printed_version;
        unsigned int board_idx = (unsigned int) ent->driver_data;
+       const struct ata_port_info *ppi[] = { &scc_port_info[board_idx], NULL };
        struct device *dev = &pdev->dev;
-       struct ata_probe_ent *probe_ent;
        int rc;
 
        if (!printed_version++)
                dev_printk(KERN_DEBUG, &pdev->dev,
                           "version " DRV_VERSION "\n");
 
+       host = ata_port_alloc_pinfo(&pdev->dev, ppi, 1);
+       if (!host)
+               return -ENOMEM;
+
        rc = pcim_enable_device(pdev);
        if (rc)
                return rc;
@@ -1162,33 +1162,14 @@ static int scc_init_one (struct pci_dev *pdev, const 
struct pci_device_id *ent)
                pcim_pin_device(pdev);
        if (rc)
                return rc;
+       host->iomap = pcim_iomap_table(pdev);
 
-       probe_ent = devm_kzalloc(dev, sizeof(*probe_ent), GFP_KERNEL);
-       if (!probe_ent)
-               return -ENOMEM;
-
-       probe_ent->dev = dev;
-       INIT_LIST_HEAD(&probe_ent->node);
-
-       probe_ent->sht          = scc_port_info[board_idx].sht;
-       probe_ent->port_flags   = scc_port_info[board_idx].flags;
-       probe_ent->pio_mask     = scc_port_info[board_idx].pio_mask;
-       probe_ent->udma_mask    = scc_port_info[board_idx].udma_mask;
-       probe_ent->port_ops     = scc_port_info[board_idx].port_ops;
-
-       probe_ent->irq = pdev->irq;
-       probe_ent->irq_flags = IRQF_SHARED;
-       probe_ent->iomap = pcim_iomap_table(pdev);
-
-       rc = scc_host_init(probe_ent);
+       rc = scc_host_init(host);
        if (rc)
                return rc;
 
-       if (!ata_device_add(probe_ent))
-               return -ENODEV;
-
-       devm_kfree(dev, probe_ent);
-       return 0;
+       return ata_host_activate(host, pdev->irq, ata_interrupt, IRQF_SHARED,
+                                &scc_sht);
 }
 
 static struct pci_driver scc_pci_driver = {
diff --git a/drivers/ata/pata_winbond.c b/drivers/ata/pata_winbond.c
index 434f14f..aa6d4bc 100644
--- a/drivers/ata/pata_winbond.c
+++ b/drivers/ata/pata_winbond.c
@@ -158,7 +158,6 @@ static struct ata_port_operations winbond_port_ops = {
 
        .data_xfer      = winbond_data_xfer,
 
-       .irq_handler    = ata_interrupt,
        .irq_clear      = ata_bmdma_irq_clear,
        .irq_on         = ata_irq_on,
        .irq_ack        = ata_irq_ack,
@@ -179,11 +178,9 @@ static struct ata_port_operations winbond_port_ops = {
 
 static __init int winbond_init_one(unsigned long port)
 {
-       struct ata_probe_ent ae;
        struct platform_device *pdev;
-       int ret;
        u8 reg;
-       int i;
+       int i, rc;
 
        reg = winbond_readcfg(port, 0x81);
        reg |= 0x80;    /* jumpered mode off */
@@ -202,58 +199,56 @@ static __init int winbond_init_one(unsigned long port)
 
        for (i = 0; i < 2 ; i ++) {
                unsigned long cmd_port = 0x1F0 - (0x80 * i);
+               struct ata_host *host;
+               struct ata_port *ap;
                void __iomem *cmd_addr, *ctl_addr;
 
-               if (reg & (1 << i)) {
-                       /*
-                        *      Fill in a probe structure first of all
-                        */
-
-                       pdev = platform_device_register_simple(DRV_NAME, 
nr_winbond_host, NULL, 0);
-                       if (IS_ERR(pdev))
-                               return PTR_ERR(pdev);
-
-                       cmd_addr = devm_ioport_map(&pdev->dev, cmd_port, 8);
-                       ctl_addr = devm_ioport_map(&pdev->dev, cmd_port + 
0x0206, 1);
-                       if (!cmd_addr || !ctl_addr) {
-                               platform_device_unregister(pdev);
-                               return -ENOMEM;
-                       }
-
-                       memset(&ae, 0, sizeof(struct ata_probe_ent));
-                       INIT_LIST_HEAD(&ae.node);
-                       ae.dev = &pdev->dev;
-
-                       ae.port_ops = &winbond_port_ops;
-                       ae.pio_mask = 0x1F;
-
-                       ae.sht = &winbond_sht;
-
-                       ae.n_ports = 1;
-                       ae.irq = 14 + i;
-                       ae.irq_flags = 0;
-                       ae.port_flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST;
-                       ae.port[0].cmd_addr = cmd_addr;
-                       ae.port[0].altstatus_addr = ctl_addr;
-                       ae.port[0].ctl_addr = ctl_addr;
-                       ata_std_ports(&ae.port[0]);
-                       /*
-                        *      Hook in a private data structure per channel
-                        */
-                       ae.private_data = &winbond_data[nr_winbond_host];
-                       winbond_data[nr_winbond_host].config = port;
-                       winbond_data[nr_winbond_host].platform_dev = pdev;
-
-                       ret = ata_device_add(&ae);
-                       if (ret == 0) {
-                               platform_device_unregister(pdev);
-                               return -ENODEV;
-                       }
-                       winbond_host[nr_winbond_host++] = 
dev_get_drvdata(&pdev->dev);
-               }
+               if (!(reg & (1 << i)))
+                       continue;
+
+               pdev = platform_device_register_simple(DRV_NAME, 
nr_winbond_host, NULL, 0);
+               if (IS_ERR(pdev))
+                       return PTR_ERR(pdev);
+
+               rc = -ENOMEM;
+               host = ata_host_alloc(&pdev->dev, 1);
+               if (!host)
+                       goto err_unregister;
+
+               rc = -ENOMEM;
+               cmd_addr = devm_ioport_map(&pdev->dev, cmd_port, 8);
+               ctl_addr = devm_ioport_map(&pdev->dev, cmd_port + 0x0206, 1);
+               if (!cmd_addr || !ctl_addr)
+                       goto err_unregister;
+
+               ap = host->ports[0];
+               ap->ops = &winbond_port_ops;
+               ap->pio_mask = 0x1F;
+               ap->flags |= ATA_FLAG_SLAVE_POSS;
+               ap->ioaddr.cmd_addr = cmd_addr;
+               ap->ioaddr.altstatus_addr = ctl_addr;
+               ap->ioaddr.ctl_addr = ctl_addr;
+               ata_std_ports(&ap->ioaddr);
+
+               /* hook in a private data structure per channel */
+               host->private_data = &winbond_data[nr_winbond_host];
+               winbond_data[nr_winbond_host].config = port;
+               winbond_data[nr_winbond_host].platform_dev = pdev;
+
+               /* activate */
+               rc = ata_host_activate(host, 14 + i, ata_interrupt, 0,
+                                      &winbond_sht);
+               if (rc)
+                       goto err_unregister;
+
+               winbond_host[nr_winbond_host++] = dev_get_drvdata(&pdev->dev);
        }
 
        return 0;
+
+ err_unregister:
+       platform_device_unregister(pdev);
+       return rc;
 }
 
 /**
diff --git a/drivers/ata/pdc_adma.c b/drivers/ata/pdc_adma.c
index 5dd3ca8..52b6953 100644
--- a/drivers/ata/pdc_adma.c
+++ b/drivers/ata/pdc_adma.c
@@ -52,9 +52,9 @@
 /* macro to calculate base address for ADMA regs */
 #define ADMA_REGS(base,port_no)                ((base) + 0x80 + ((port_no) * 
0x20))
 
-/* macro to obtain addresses from ata_host */
-#define ADMA_HOST_REGS(host,port_no) \
-       ADMA_REGS((host)->iomap[ADMA_MMIO_BAR], port_no)
+/* macro to obtain addresses from ata_port */
+#define ADMA_PORT_REGS(ap) \
+       ADMA_REGS((ap)->host->iomap[ADMA_MMIO_BAR], ap->port_no)
 
 enum {
        ADMA_MMIO_BAR           = 4,
@@ -128,7 +128,6 @@ struct adma_port_priv {
 
 static int adma_ata_init_one (struct pci_dev *pdev,
                                const struct pci_device_id *ent);
-static irqreturn_t adma_intr (int irq, void *dev_instance);
 static int adma_port_start(struct ata_port *ap);
 static void adma_host_stop(struct ata_host *host);
 static void adma_port_stop(struct ata_port *ap);
@@ -172,7 +171,6 @@ static const struct ata_port_operations adma_ata_ops = {
        .qc_issue               = adma_qc_issue,
        .eng_timeout            = adma_eng_timeout,
        .data_xfer              = ata_data_xfer,
-       .irq_handler            = adma_intr,
        .irq_clear              = adma_irq_clear,
        .irq_on                 = ata_irq_on,
        .irq_ack                = ata_irq_ack,
@@ -186,7 +184,6 @@ static const struct ata_port_operations adma_ata_ops = {
 static struct ata_port_info adma_port_info[] = {
        /* board_1841_idx */
        {
-               .sht            = &adma_ata_sht,
                .flags          = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST |
                                  ATA_FLAG_NO_LEGACY | ATA_FLAG_MMIO |
                                  ATA_FLAG_PIO_POLLING,
@@ -229,8 +226,10 @@ static void adma_irq_clear(struct ata_port *ap)
        /* nothing */
 }
 
-static void adma_reset_engine(void __iomem *chan)
+static void adma_reset_engine(struct ata_port *ap)
 {
+       void __iomem *chan = ADMA_PORT_REGS(ap);
+
        /* reset ADMA to idle state */
        writew(aPIOMD4 | aNIEN | aRSTADM, chan + ADMA_CONTROL);
        udelay(2);
@@ -241,14 +240,14 @@ static void adma_reset_engine(void __iomem *chan)
 static void adma_reinit_engine(struct ata_port *ap)
 {
        struct adma_port_priv *pp = ap->private_data;
-       void __iomem *chan = ADMA_HOST_REGS(ap->host, ap->port_no);
+       void __iomem *chan = ADMA_PORT_REGS(ap);
 
        /* mask/clear ATA interrupts */
        writeb(ATA_NIEN, ap->ioaddr.ctl_addr);
        ata_check_status(ap);
 
        /* reset the ADMA engine */
-       adma_reset_engine(chan);
+       adma_reset_engine(ap);
 
        /* set in-FIFO threshold to 0x100 */
        writew(0x100, chan + ADMA_FIFO_IN);
@@ -268,7 +267,7 @@ static void adma_reinit_engine(struct ata_port *ap)
 
 static inline void adma_enter_reg_mode(struct ata_port *ap)
 {
-       void __iomem *chan = ADMA_HOST_REGS(ap->host, ap->port_no);
+       void __iomem *chan = ADMA_PORT_REGS(ap);
 
        writew(aPIOMD4, chan + ADMA_CONTROL);
        readb(chan + ADMA_STATUS);      /* flush */
@@ -415,7 +414,7 @@ static void adma_qc_prep(struct ata_queued_cmd *qc)
 static inline void adma_packet_start(struct ata_queued_cmd *qc)
 {
        struct ata_port *ap = qc->ap;
-       void __iomem *chan = ADMA_HOST_REGS(ap->host, ap->port_no);
+       void __iomem *chan = ADMA_PORT_REGS(ap);
 
        VPRINTK("ENTER, ap %p\n", ap);
 
@@ -453,7 +452,7 @@ static inline unsigned int adma_intr_pkt(struct ata_host 
*host)
                struct ata_port *ap = host->ports[port_no];
                struct adma_port_priv *pp;
                struct ata_queued_cmd *qc;
-               void __iomem *chan = ADMA_HOST_REGS(host, port_no);
+               void __iomem *chan = ADMA_PORT_REGS(ap);
                u8 status = readb(chan + ADMA_STATUS);
 
                if (status == 0)
@@ -575,7 +574,7 @@ static int adma_port_start(struct ata_port *ap)
 
 static void adma_port_stop(struct ata_port *ap)
 {
-       adma_reset_engine(ADMA_HOST_REGS(ap->host, ap->port_no));
+       adma_reset_engine(ap);
 }
 
 static void adma_host_stop(struct ata_host *host)
@@ -583,21 +582,19 @@ static void adma_host_stop(struct ata_host *host)
        unsigned int port_no;
 
        for (port_no = 0; port_no < ADMA_PORTS; ++port_no)
-               adma_reset_engine(ADMA_HOST_REGS(host, port_no));
+               adma_reset_engine(host->ports[port_no]);
 }
 
-static void adma_host_init(unsigned int chip_id,
-                               struct ata_probe_ent *probe_ent)
+static void adma_host_init(struct ata_host *host, unsigned int chip_id)
 {
        unsigned int port_no;
-       void __iomem *mmio_base = probe_ent->iomap[ADMA_MMIO_BAR];
 
        /* enable/lock aGO operation */
-       writeb(7, mmio_base + ADMA_MODE_LOCK);
+       writeb(7, host->iomap[ADMA_MMIO_BAR] + ADMA_MODE_LOCK);
 
        /* reset the ADMA logic */
        for (port_no = 0; port_no < ADMA_PORTS; ++port_no)
-               adma_reset_engine(ADMA_REGS(mmio_base, port_no));
+               adma_reset_engine(host->ports[port_no]);
 }
 
 static int adma_set_dma_masks(struct pci_dev *pdev, void __iomem *mmio_base)
@@ -623,14 +620,21 @@ static int adma_ata_init_one(struct pci_dev *pdev,
                             const struct pci_device_id *ent)
 {
        static int printed_version;
-       struct ata_probe_ent *probe_ent = NULL;
-       void __iomem *mmio_base;
        unsigned int board_idx = (unsigned int) ent->driver_data;
+       const struct ata_port_info *ppi[] = { &adma_port_info[board_idx], NULL 
};
+       struct ata_host *host;
+       void __iomem *mmio_base;
        int rc, port_no;
 
        if (!printed_version++)
                dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
 
+       /* alloc host */
+       host = ata_host_alloc_pinfo(&pdev->dev, ppi, ADMA_PORTS);
+       if (!host)
+               return -ENOMEM;
+
+       /* acquire resources and fill host */
        rc = pcim_enable_device(pdev);
        if (rc)
                return rc;
@@ -641,46 +645,23 @@ static int adma_ata_init_one(struct pci_dev *pdev,
        rc = pcim_iomap_regions(pdev, 1 << ADMA_MMIO_BAR, DRV_NAME);
        if (rc)
                return rc;
-       mmio_base = pcim_iomap_table(pdev)[ADMA_MMIO_BAR];
+       host->iomap = pcim_iomap_table(pdev);
+       mmio_base = host->iomap[ADMA_MMIO_BAR];
 
        rc = adma_set_dma_masks(pdev, mmio_base);
        if (rc)
                return rc;
 
-       probe_ent = devm_kzalloc(&pdev->dev, sizeof(*probe_ent), GFP_KERNEL);
-       if (probe_ent == NULL)
-               return -ENOMEM;
-
-       probe_ent->dev = pci_dev_to_dev(pdev);
-       INIT_LIST_HEAD(&probe_ent->node);
-
-       probe_ent->sht          = adma_port_info[board_idx].sht;
-       probe_ent->port_flags   = adma_port_info[board_idx].flags;
-       probe_ent->pio_mask     = adma_port_info[board_idx].pio_mask;
-       probe_ent->mwdma_mask   = adma_port_info[board_idx].mwdma_mask;
-       probe_ent->udma_mask    = adma_port_info[board_idx].udma_mask;
-       probe_ent->port_ops     = adma_port_info[board_idx].port_ops;
-
-       probe_ent->irq          = pdev->irq;
-       probe_ent->irq_flags    = IRQF_SHARED;
-       probe_ent->n_ports      = ADMA_PORTS;
-       probe_ent->iomap        = pcim_iomap_table(pdev);
-
-       for (port_no = 0; port_no < probe_ent->n_ports; ++port_no) {
-               adma_ata_setup_port(&probe_ent->port[port_no],
+       for (port_no = 0; port_no < ADMA_PORTS; ++port_no)
+               adma_ata_setup_port(&host->ports[port_no]->ioaddr,
                                    ADMA_ATA_REGS(mmio_base, port_no));
-       }
-
-       pci_set_master(pdev);
 
        /* initialize adapter */
-       adma_host_init(board_idx, probe_ent);
+       adma_host_init(host, board_idx);
 
-       if (!ata_device_add(probe_ent))
-               return -ENODEV;
-
-       devm_kfree(&pdev->dev, probe_ent);
-       return 0;
+       pci_set_master(pdev);
+       return ata_host_activate(host, pdev->irq, adma_intr, IRQF_SHARED,
+                                &adma_ata_sht);
 }
 
 static int __init adma_ata_init(void)
-
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