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