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/pci.h>
   6#include <linux/msi.h>
   7
   8struct pci_dev;
   9struct of_phandle_args;
  10struct device_node;
  11
  12#if IS_ENABLED(CONFIG_OF) && IS_ENABLED(CONFIG_PCI)
  13struct device_node *of_pci_find_child_device(struct device_node *parent,
  14                                             unsigned int devfn);
  15int of_pci_get_devfn(struct device_node *np);
  16void of_pci_check_probe_only(void);
  17#else
  18static inline struct device_node *of_pci_find_child_device(struct device_node *parent,
  19                                             unsigned int devfn)
  20{
  21        return NULL;
  22}
  23
  24static inline int of_pci_get_devfn(struct device_node *np)
  25{
  26        return -EINVAL;
  27}
  28
  29static inline void of_pci_check_probe_only(void) { }
  30#endif
  31
  32#if IS_ENABLED(CONFIG_OF_IRQ)
  33int of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin);
  34#else
  35static inline int
  36of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin)
  37{
  38        return 0;
  39}
  40#endif
  41
  42#endif
  43