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 void of_pci_check_probe_only(void);
  20 #else
  21 static inline int of_irq_parse_pci(const struct pci_dev *pdev, struct of_phandle_args *out_irq)
  22 {
  23         return 0;
  24 }
  25
  26 static inline struct device_node *of_pci_find_child_device(struct device_node *parent,
  27                                              unsigned int devfn)
  28 {
  29         return NULL;
  30 }
  31
  32 static inline int of_pci_get_devfn(struct device_node *np)
  33 {
  34         return -EINVAL;
  35 }
  36
  37 static inline int
  38 of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin)
  39 {
  40         return 0;
  41 }
  42
  43 static inline int
  44 of_pci_parse_bus_range(struct device_node *node, struct resource *res)
  45 {
  46         return -EINVAL;
  47 }
  48
  49 static inline int
  50 of_get_pci_domain_nr(struct device_node *node)
  51 {
  52         return -1;
  53 }
  54
  55 static inline void of_pci_check_probe_only(void) { }
  56 #endif
  57
  58 #if defined(CONFIG_OF_ADDRESS)
  59 int of_pci_get_host_bridge_resources(struct device_node *dev,
  60                         unsigned char busno, unsigned char bus_max,
  61                         struct list_head *resources, resource_size_t *io_base);
  62 #else
  63 static inline int of_pci_get_host_bridge_resources(struct device_node *dev,
  64                         unsigned char busno, unsigned char bus_max,
  65                         struct list_head *resources, resource_size_t *io_base)
  66 {
  67         return -EINVAL;
  68 }
  69 #endif
  70
  71 #if defined(CONFIG_OF) && defined(CONFIG_PCI_MSI)
  72 int of_pci_msi_chip_add(struct msi_controller *chip);
  73 void of_pci_msi_chip_remove(struct msi_controller *chip);
  74 struct msi_controller *of_pci_find_msi_chip_by_node(struct device_node *of_node);
  75 #else
  76 static inline int of_pci_msi_chip_add(struct msi_controller *chip) { return -EINVAL; }
  77 static inline void of_pci_msi_chip_remove(struct msi_controller *chip) { }
  78 static inline struct msi_controller *
  79 of_pci_find_msi_chip_by_node(struct device_node *of_node) { return NULL; }
  80 #endif
  81
  82 #endif