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