LXR linux/include/linux/of

   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
   8struct pci_dev;
   9struct device_node;
  10
  11#if IS_ENABLED(CONFIG_OF) && IS_ENABLED(CONFIG_PCI)
  12struct device_node *of_pci_find_child_device(struct device_node *parent,
  13                                             unsigned int devfn);
  14int of_pci_get_devfn(struct device_node *np);
  15void of_pci_check_probe_only(void);
  16#else
  17static inline struct device_node *of_pci_find_child_device(struct device_node *parent,
  18                                             unsigned int devfn)
  19{
  20        return NULL;
  21}
  22
  23static inline int of_pci_get_devfn(struct device_node *np)
  24{
  25        return -EINVAL;
  26}
  27
  28static inline void of_pci_check_probe_only(void) { }
  29#endif
  30
  31#if IS_ENABLED(CONFIG_OF_IRQ)
  32int of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin);
  33#else
  34static inline int
  35of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin)
  36{
  37        return 0;
  38}
  39#endif
  40
  41#endif
  42