ide: keep pointer to struct device instead of struct pci_dev in ide_hwif_t

Keep pointer to struct device instead of struct pci_dev in ide_hwif_t.

While on it:
* Use *dev->dma_mask instead of pci_dev->dma_mask in ide_toggle_bounce().

There should be no functionality changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/pci/ns87415.c b/drivers/ide/pci/ns87415.c
index d4df464..bd05a4a 100644
--- a/drivers/ide/pci/ns87415.c
+++ b/drivers/ide/pci/ns87415.c
@@ -71,10 +71,9 @@
 
 static void __devinit superio_ide_init_iops (struct hwif_s *hwif)
 {
+	struct pci_dev *pdev = to_pci_dev(hwif->dev);
 	u32 base, dmabase;
-	u8 tmp;
-	struct pci_dev *pdev = hwif->pci_dev;
-	u8 port = hwif->channel;
+	u8 port = hwif->channel, tmp;
 
 	base = pci_resource_start(pdev, port * 2) & ~3;
 	dmabase = pci_resource_start(pdev, 4) & ~3;
@@ -93,10 +92,11 @@
 
 static void __devinit init_iops_ns87415(ide_hwif_t *hwif)
 {
-	if (PCI_SLOT(hwif->pci_dev->devfn) == 0xE) {
+	struct pci_dev *dev = to_pci_dev(hwif->dev);
+
+	if (PCI_SLOT(dev->devfn) == 0xE)
 		/* Built-in - assume it's under superio. */
 		superio_ide_init_iops(hwif);
-	}
 }
 #endif
 
@@ -110,8 +110,8 @@
 static void ns87415_prepare_drive (ide_drive_t *drive, unsigned int use_dma)
 {
 	ide_hwif_t *hwif = HWIF(drive);
+	struct pci_dev *dev = to_pci_dev(hwif->dev);
 	unsigned int bit, other, new, *old = (unsigned int *) hwif->select_data;
-	struct pci_dev *dev = hwif->pci_dev;
 	unsigned long flags;
 
 	local_irq_save(flags);
@@ -189,7 +189,7 @@
 
 static void __devinit init_hwif_ns87415 (ide_hwif_t *hwif)
 {
-	struct pci_dev *dev = hwif->pci_dev;
+	struct pci_dev *dev = to_pci_dev(hwif->dev);
 	unsigned int ctrl, using_inta;
 	u8 progif;
 #ifdef __sparc_v9__