siimage: convert to use ->host_priv

While at it:

* Reserve PCI BAR 5 in siimage_init_one() and remove no longer needed
  setup_mmio_siimage().

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

diff --git a/drivers/ide/pci/siimage.c b/drivers/ide/pci/siimage.c
index 4812413..1388ffa 100644 (file)
--- a/drivers/ide/pci/siimage.c
+++ b/drivers/ide/pci/siimage.c
@@ -127,9 +127,10 @@ static inline unsigned long siimage_seldev(ide_drive_t *drive, int r)
 
 static u8 sil_ioread8(struct pci_dev *dev, unsigned long addr)
 {
+       struct ide_host *host = pci_get_drvdata(dev);
        u8 tmp = 0;
 
-       if (pci_get_drvdata(dev))
+       if (host->host_priv)
                tmp = readb((void __iomem *)addr);
        else
                pci_read_config_byte(dev, addr, &tmp);
@@ -139,9 +140,10 @@ static u8 sil_ioread8(struct pci_dev *dev, unsigned long addr)
 
 static u16 sil_ioread16(struct pci_dev *dev, unsigned long addr)
 {
+       struct ide_host *host = pci_get_drvdata(dev);
        u16 tmp = 0;
 
-       if (pci_get_drvdata(dev))
+       if (host->host_priv)
                tmp = readw((void __iomem *)addr);
        else
                pci_read_config_word(dev, addr, &tmp);
@@ -151,7 +153,9 @@ static u16 sil_ioread16(struct pci_dev *dev, unsigned long addr)
 
 static void sil_iowrite8(struct pci_dev *dev, u8 val, unsigned long addr)
 {
-       if (pci_get_drvdata(dev))
+       struct ide_host *host = pci_get_drvdata(dev);
+
+       if (host->host_priv)
                writeb(val, (void __iomem *)addr);
        else
                pci_write_config_byte(dev, addr, val);
@@ -159,7 +163,9 @@ static void sil_iowrite8(struct pci_dev *dev, u8 val, unsigned long addr)
 
 static void sil_iowrite16(struct pci_dev *dev, u16 val, unsigned long addr)
 {
-       if (pci_get_drvdata(dev))
+       struct ide_host *host = pci_get_drvdata(dev);
+
+       if (host->host_priv)
                writew(val, (void __iomem *)addr);
        else
                pci_write_config_word(dev, addr, val);
@@ -167,7 +173,9 @@ static void sil_iowrite16(struct pci_dev *dev, u16 val, unsigned long addr)
 
 static void sil_iowrite32(struct pci_dev *dev, u32 val, unsigned long addr)
 {
-       if (pci_get_drvdata(dev))
+       struct ide_host *host = pci_get_drvdata(dev);
+
+       if (host->host_priv)
                writel(val, (void __iomem *)addr);
        else
                pci_write_config_dword(dev, addr, val);
@@ -445,44 +453,6 @@ static void sil_sata_pre_reset(ide_drive_t *drive)
 }
 
 /**
- *     setup_mmio_siimage      -       switch controller into MMIO mode
- *     @dev: PCI device we are configuring
- *     @name: device name
- *
- *     Attempt to put the device into MMIO mode. There are some slight
- *     complications here with certain systems where the MMIO BAR isn't
- *     mapped, so we have to be sure that we can fall back to I/O.
- */
-
-static unsigned int setup_mmio_siimage(struct pci_dev *dev, const char *name)
-{
-       resource_size_t bar5    = pci_resource_start(dev, 5);
-       unsigned long barsize   = pci_resource_len(dev, 5);
-       void __iomem *ioaddr;
-
-       /*
-        *      Drop back to PIO if we can't map the MMIO. Some systems
-        *      seem to get terminally confused in the PCI spaces.
-        */
-       if (!request_mem_region(bar5, barsize, name)) {
-               printk(KERN_WARNING "siimage: IDE controller MMIO ports not "
-                                   "available.\n");
-               return 0;
-       }
-
-       ioaddr = ioremap(bar5, barsize);
-       if (ioaddr == NULL) {
-               release_mem_region(bar5, barsize);
-               return 0;
-       }
-
-       pci_set_master(dev);
-       pci_set_drvdata(dev, (void *) ioaddr);
-
-       return 1;
-}
-
-/**
  *     init_chipset_siimage    -       set up an SI device
  *     @dev: PCI device
  *     @name: device name
@@ -494,17 +464,15 @@ static unsigned int setup_mmio_siimage(struct pci_dev *dev, const char *name)
 static unsigned int __devinit init_chipset_siimage(struct pci_dev *dev,
                                                   const char *name)
 {
+       struct ide_host *host = pci_get_drvdata(dev);
+       void __iomem *ioaddr = host->host_priv;
        unsigned long base, scsc_addr;
-       void __iomem *ioaddr = NULL;
-       u8 rev = dev->revision, tmp, BA5_EN;
+       u8 rev = dev->revision, tmp;
 
        pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, rev ? 1 : 255);
 
-       pci_read_config_byte(dev, 0x8A, &BA5_EN);
-
-       if ((BA5_EN & 0x01) || pci_resource_start(dev, 5))
-               if (setup_mmio_siimage(dev, name))
-                       ioaddr = pci_get_drvdata(dev);
+       if (ioaddr)
+               pci_set_master(dev);
 
        base = (unsigned long)ioaddr;
 
@@ -592,7 +560,8 @@ static unsigned int __devinit init_chipset_siimage(struct pci_dev *dev,
 static void __devinit init_mmio_iops_siimage(ide_hwif_t *hwif)
 {
        struct pci_dev *dev     = to_pci_dev(hwif->dev);
-       void *addr              = pci_get_drvdata(dev);
+       struct ide_host *host   = pci_get_drvdata(dev);
+       void *addr              = host->host_priv;
        u8 ch                   = hwif->channel;
        struct ide_io_ports *io_ports = &hwif->io_ports;
        unsigned long base;
@@ -691,16 +660,15 @@ static void __devinit sil_quirkproc(ide_drive_t *drive)
 static void __devinit init_iops_siimage(ide_hwif_t *hwif)
 {
        struct pci_dev *dev = to_pci_dev(hwif->dev);
+       struct ide_host *host = pci_get_drvdata(dev);
 
        hwif->hwif_data = NULL;
 
        /* Pessimal until we finish probing */
        hwif->rqsize = 15;
 
-       if (pci_get_drvdata(dev) == NULL)
-               return;
-
-       init_mmio_iops_siimage(hwif);
+       if (host->host_priv)
+               init_mmio_iops_siimage(hwif);
 }
 
 /**
@@ -778,8 +746,13 @@ static const struct ide_port_info siimage_chipsets[] __devinitdata = {
 static int __devinit siimage_init_one(struct pci_dev *dev,
                                      const struct pci_device_id *id)
 {
+       void __iomem *ioaddr = NULL;
+       resource_size_t bar5 = pci_resource_start(dev, 5);
+       unsigned long barsize = pci_resource_len(dev, 5);
+       int rc;
        struct ide_port_info d;
        u8 idx = id->driver_data;
+       u8 BA5_EN;
 
        d = siimage_chipsets[idx];
 
@@ -795,7 +768,36 @@ static int __devinit siimage_init_one(struct pci_dev *dev,
                d.host_flags |= IDE_HFLAG_NO_ATAPI_DMA;
        }
 
-       return ide_pci_init_one(dev, &d, NULL);
+       rc = pci_enable_device(dev);
+       if (rc)
+               return rc;
+
+       pci_read_config_byte(dev, 0x8A, &BA5_EN);
+       if ((BA5_EN & 0x01) || bar5) {
+               /*
+               * Drop back to PIO if we can't map the MMIO. Some systems
+               * seem to get terminally confused in the PCI spaces.
+               */
+               if (!request_mem_region(bar5, barsize, d.name)) {
+                       printk(KERN_WARNING "siimage: IDE controller MMIO "
+                                           "ports not available.\n");
+               } else {
+                       ioaddr = ioremap(bar5, barsize);
+                       if (ioaddr == NULL)
+                               release_mem_region(bar5, barsize);
+               }
+       }
+
+       rc = ide_pci_init_one(dev, &d, ioaddr);
+       if (rc) {
+               if (ioaddr) {
+                       iounmap(ioaddr);
+                       release_mem_region(bar5, barsize);
+               }
+               pci_disable_device(dev);
+       }
+
+       return rc;
 }
 
 static const struct pci_device_id siimage_pci_tbl[] = {