libata: convert the remaining SATA drivers to new init model

Convert ahci, sata_sil, sata_sil24, sata_svw, sata_qstor, sata_mv,
sata_sx4, sata_vsc and sata_inic162x to new init model.

Now that host and ap are available during intialization, functions are
converted to take either host or ap instead of low level parameters
which were inevitable for functions shared between init and other
paths.  This simplifies code quite a bit.

* init_one()'s now follow more consistent init order

* ahci_setup_port() and ahci_host_init() collapsed into
  ahci_init_one() for init order consistency

* sata_vsc uses port_info instead of setting fields manually

* in sata_svw, k2_board_info converted to port_info (info is now in
  port flags).  port number is honored now.

Tested on ICH7/8 AHCI, jmb360, sil3112, 3114, 3124 and 3132.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

Author: htejun

drivers/ata/ahci.c

@@ -559,7 +559,6 @@ static struct ata_port_operations inic_port_ops = {
 	.bmdma_stop		= inic_bmdma_stop,
 	.bmdma_status		= inic_bmdma_status,
 
-	.irq_handler		= inic_interrupt,
 	.irq_clear		= inic_irq_clear,
 	.irq_on			= ata_irq_on,
 	.irq_ack		= ata_irq_ack,
@@ -580,7 +579,6 @@ static struct ata_port_operations inic_port_ops = {
 };
 
 static struct ata_port_info inic_port_info = {
-	.sht			= &inic_sht,
 	/* For some reason, ATA_PROT_ATAPI is broken on this
 	 * controller, and no, PIO_POLLING does't fix it.  It somehow
 	 * manages to report the wrong ireason and ignoring ireason
@@ -661,23 +659,47 @@ static int inic_pci_device_resume(struct pci_dev *pdev)
 static int inic_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
 	static int printed_version;
-	struct ata_port_info *pinfo = &inic_port_info;
-	struct ata_probe_ent *probe_ent;
+	const struct ata_port_info *ppi[] = { &inic_port_info, NULL };
+	struct ata_host *host;
 	struct inic_host_priv *hpriv;
 	void __iomem * const *iomap;
 	int i, rc;
 
 	if (!printed_version++)
 		dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
 
+	/* alloc host */
+	host = ata_host_alloc_pinfo(&pdev->dev, ppi, NR_PORTS);
+	hpriv = devm_kzalloc(&pdev->dev, sizeof(*hpriv), GFP_KERNEL);
+	if (!host || !hpriv)
+		return -ENOMEM;
+
+	host->private_data = hpriv;
+
+	/* acquire resources and fill host */
 	rc = pcim_enable_device(pdev);
 	if (rc)
 		return rc;
 
 	rc = pcim_iomap_regions(pdev, 0x3f, DRV_NAME);
 	if (rc)
 		return rc;
-	iomap = pcim_iomap_table(pdev);
+	host->iomap = iomap = pcim_iomap_table(pdev);
+
+	for (i = 0; i < NR_PORTS; i++) {
+		struct ata_ioports *port = &host->ports[i]->ioaddr;
+		void __iomem *port_base = iomap[MMIO_BAR] + i * PORT_SIZE;
+
+		port->cmd_addr = iomap[2 * i];
+		port->altstatus_addr =
+		port->ctl_addr = (void __iomem *)
+			((unsigned long)iomap[2 * i + 1] | ATA_PCI_CTL_OFS);
+		port->scr_addr = port_base + PORT_SCR;
+
+		ata_std_ports(port);
+	}
+
+	hpriv->cached_hctl = readw(iomap[MMIO_BAR] + HOST_CTL);
 
 	/* Set dma_mask.  This devices doesn't support 64bit addressing. */
 	rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
@@ -694,43 +716,6 @@ static int inic_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 		return rc;
 	}
 
-	probe_ent = devm_kzalloc(&pdev->dev, sizeof(*probe_ent), GFP_KERNEL);
-	hpriv = devm_kzalloc(&pdev->dev, sizeof(*hpriv), GFP_KERNEL);
-	if (!probe_ent || !hpriv)
-		return -ENOMEM;
-
-	probe_ent->dev = &pdev->dev;
-	INIT_LIST_HEAD(&probe_ent->node);
-
-	probe_ent->sht			= pinfo->sht;
-	probe_ent->port_flags		= pinfo->flags;
-	probe_ent->pio_mask		= pinfo->pio_mask;
-	probe_ent->mwdma_mask		= pinfo->mwdma_mask;
-	probe_ent->udma_mask		= pinfo->udma_mask;
-	probe_ent->port_ops		= pinfo->port_ops;
-	probe_ent->n_ports		= NR_PORTS;
-
-	probe_ent->irq = pdev->irq;
-	probe_ent->irq_flags = IRQF_SHARED;
-
-	probe_ent->iomap = iomap;
-
-	for (i = 0; i < NR_PORTS; i++) {
-		struct ata_ioports *port = &probe_ent->port[i];
-		void __iomem *port_base = iomap[MMIO_BAR] + i * PORT_SIZE;
-
-		port->cmd_addr = iomap[2 * i];
-		port->altstatus_addr =
-		port->ctl_addr = (void __iomem *)
-			((unsigned long)iomap[2 * i + 1] | ATA_PCI_CTL_OFS);
-		port->scr_addr = port_base + PORT_SCR;
-
-		ata_std_ports(port);
-	}
-
-	probe_ent->private_data = hpriv;
-	hpriv->cached_hctl = readw(iomap[MMIO_BAR] + HOST_CTL);
-
 	rc = init_controller(iomap[MMIO_BAR], hpriv->cached_hctl);
 	if (rc) {
 		dev_printk(KERN_ERR, &pdev->dev,
@@ -739,13 +724,8 @@ static int inic_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	}
 
 	pci_set_master(pdev);
-
-	if (!ata_device_add(probe_ent))
-		return -ENODEV;
-
-	devm_kfree(&pdev->dev, probe_ent);
-
-	return 0;
+	return ata_host_activate(host, pdev->irq, inic_interrupt, IRQF_SHARED,
+				 &inic_sht);
 }
 
 static const struct pci_device_id inic_pci_tbl[] = {