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 int of_pci_map_rid(struct device_node *np, u32 rid,
18 const char *map_name, const char *map_mask_name,
19 struct device_node **target, u32 *id_out);
20 #else
of_pci_find_child_device(struct device_node * parent,unsigned int devfn)21 static inline struct device_node *of_pci_find_child_device(struct device_node *parent,
22 unsigned int devfn)
23 {
24 return NULL;
25 }
26
of_pci_get_devfn(struct device_node * np)27 static inline int of_pci_get_devfn(struct device_node *np)
28 {
29 return -EINVAL;
30 }
31
of_pci_map_rid(struct device_node * np,u32 rid,const char * map_name,const char * map_mask_name,struct device_node ** target,u32 * id_out)32 static inline int of_pci_map_rid(struct device_node *np, u32 rid,
33 const char *map_name, const char *map_mask_name,
34 struct device_node **target, u32 *id_out)
35 {
36 return -EINVAL;
37 }
38
of_pci_check_probe_only(void)39 static inline void of_pci_check_probe_only(void) { }
40 #endif
41
42 #if IS_ENABLED(CONFIG_OF_IRQ)
43 int of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin);
44 #else
45 static inline int
of_irq_parse_and_map_pci(const struct pci_dev * dev,u8 slot,u8 pin)46 of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin)
47 {
48 return 0;
49 }
50 #endif
51
52 #endif
53