powerpc/pci: Cleanup on struct pci_controller_ops

Each PHB has one instance of "struct pci_controller_ops" that includes
various callbacks called by PCI subsystem. In the definition of this
struct, some callbacks have explicit names for its arguments, but the
left don't have.

This adds all explicit names of the arguments to the callbacks in
"struct pci_controller_ops" so that the code looks consistent. Also,
argument name @dev is replaced by @pdev as the later one is the
preferred name for PCI device.

Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Reviewed-by: Daniel Axtens <dja@axtens.net>
Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

arch/powerpc/include/asm/pci-bridge.h

@@ -17,33 +17,34 @@ struct device_node;
  * PCI controller operations
  */
 struct pci_controller_ops {
-	void		(*dma_dev_setup)(struct pci_dev *dev);
+	void		(*dma_dev_setup)(struct pci_dev *pdev);
 	void		(*dma_bus_setup)(struct pci_bus *bus);
 
-	int		(*probe_mode)(struct pci_bus *);
+	int		(*probe_mode)(struct pci_bus *bus);
 
 	/* Called when pci_enable_device() is called. Returns true to
 	 * allow assignment/enabling of the device. */
-	bool		(*enable_device_hook)(struct pci_dev *);
+	bool		(*enable_device_hook)(struct pci_dev *pdev);
 
-	void		(*disable_device)(struct pci_dev *);
+	void		(*disable_device)(struct pci_dev *pdev);
 
-	void		(*release_device)(struct pci_dev *);
+	void		(*release_device)(struct pci_dev *pdev);
 
 	/* Called during PCI resource reassignment */
-	resource_size_t (*window_alignment)(struct pci_bus *, unsigned long type);
-	void		(*reset_secondary_bus)(struct pci_dev *dev);
+	resource_size_t (*window_alignment)(struct pci_bus *bus,
+					    unsigned long type);
+	void		(*reset_secondary_bus)(struct pci_dev *pdev);
 
 #ifdef CONFIG_PCI_MSI
-	int		(*setup_msi_irqs)(struct pci_dev *dev,
+	int		(*setup_msi_irqs)(struct pci_dev *pdev,
 					  int nvec, int type);
-	void		(*teardown_msi_irqs)(struct pci_dev *dev);
+	void		(*teardown_msi_irqs)(struct pci_dev *pdev);
 #endif
 
-	int             (*dma_set_mask)(struct pci_dev *dev, u64 dma_mask);
-	u64		(*dma_get_required_mask)(struct pci_dev *dev);
+	int             (*dma_set_mask)(struct pci_dev *pdev, u64 dma_mask);
+	u64		(*dma_get_required_mask)(struct pci_dev *pdev);
 
-	void		(*shutdown)(struct pci_controller *);
+	void		(*shutdown)(struct pci_controller *hose);
 };
 
 /*