include/linux/of_pci.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __OF_PCI_H
   3 #define __OF_PCI_H
   4
   5 #include <linux/types.h>
   6 #include <linux/errno.h>
   7
   8 struct pci_dev;
   9 struct device_node;
  10
  11 #if IS_ENABLED(CONFIG_OF) && IS_ENABLED(CONFIG_PCI)
  12 struct device_node *of_pci_find_child_device(struct device_node *parent,
  13                                              unsigned int devfn);
  14 int of_pci_get_devfn(struct device_node *np);
  15 void of_pci_check_probe_only(void);
  16 #else
  17 static inline struct device_node *of_pci_find_child_device(struct device_node *parent,
  18                                              unsigned int devfn)
  19 {
  20         return NULL;
  21 }
  22
  23 static inline int of_pci_get_devfn(struct device_node *np)
  24 {
  25         return -EINVAL;
  26 }
  27
  28 static inline void of_pci_check_probe_only(void) { }
  29 #endif
  30
  31 #if IS_ENABLED(CONFIG_OF_IRQ)
  32 int of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin);
  33 #else
  34 static inline int
  35 of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin)
  36 {
  37         return 0;
  38 }
  39 #endif
  40
  41 #endif