include/linux/of_pci.h

   1 #ifndef __OF_PCI_H
   2 #define __OF_PCI_H
   3
   4 #include <linux/pci.h>
   5 #include <linux/msi.h>
   6
   7 struct pci_dev;
   8 struct of_phandle_args;
   9 struct device_node;
  10
  11 #ifdef CONFIG_OF
  12 int of_irq_parse_pci(const struct pci_dev *pdev, struct of_phandle_args *out_irq);
  13 struct device_node *of_pci_find_child_device(struct device_node *parent,
  14                                              unsigned int devfn);
  15 int of_pci_get_devfn(struct device_node *np);
  16 int of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin);
  17 int of_pci_parse_bus_range(struct device_node *node, struct resource *res);
  18 int of_get_pci_domain_nr(struct device_node *node);
  19 #else
  20 static inline int of_irq_parse_pci(const struct pci_dev *pdev, struct of_phandle_args *out_irq)
  21 {
  22         return 0;
  23 }
  24
  25 static inline struct device_node *of_pci_find_child_device(struct device_node *parent,
  26                                              unsigned int devfn)
  27 {
  28         return NULL;
  29 }
  30
  31 static inline int of_pci_get_devfn(struct device_node *np)
  32 {
  33         return -EINVAL;
  34 }
  35
  36 static inline int
  37 of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin)
  38 {
  39         return 0;
  40 }
  41
  42 static inline int
  43 of_pci_parse_bus_range(struct device_node *node, struct resource *res)
  44 {
  45         return -EINVAL;
  46 }
  47
  48 static inline int
  49 of_get_pci_domain_nr(struct device_node *node)
  50 {
  51         return -1;
  52 }
  53 #endif
  54
  55 #if defined(CONFIG_OF_ADDRESS)
  56 int of_pci_get_host_bridge_resources(struct device_node *dev,
  57                         unsigned char busno, unsigned char bus_max,
  58                         struct list_head *resources, resource_size_t *io_base);
  59 #endif
  60
  61 #if defined(CONFIG_OF) && defined(CONFIG_PCI_MSI)
  62 int of_pci_msi_chip_add(struct msi_controller *chip);
  63 void of_pci_msi_chip_remove(struct msi_controller *chip);
  64 struct msi_controller *of_pci_find_msi_chip_by_node(struct device_node *of_node);
  65 #else
  66 static inline int of_pci_msi_chip_add(struct msi_controller *chip) { return -EINVAL; }
  67 static inline void of_pci_msi_chip_remove(struct msi_controller *chip) { }
  68 static inline struct msi_controller *
  69 of_pci_find_msi_chip_by_node(struct device_node *of_node) { return NULL; }
  70 #endif
  71
  72 #endif