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 #ifdef CONFIG_OF_PCI
13 int of_irq_parse_pci(const struct pci_dev *pdev, struct of_phandle_args *out_irq);
14 struct device_node *of_pci_find_child_device(struct device_node *parent,
15 unsigned int devfn);
16 int of_pci_get_devfn(struct device_node *np);
17 int of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin);
18 int of_pci_parse_bus_range(struct device_node *node, struct resource *res);
19 int of_get_pci_domain_nr(struct device_node *node);
20 int of_pci_get_max_link_speed(struct device_node *node);
21 void of_pci_check_probe_only(void);
22 int of_pci_map_rid(struct device_node *np, u32 rid,
23 const char *map_name, const char *map_mask_name,
24 struct device_node **target, u32 *id_out);
25 #else
of_irq_parse_pci(const struct pci_dev * pdev,struct of_phandle_args * out_irq)26 static inline int of_irq_parse_pci(const struct pci_dev *pdev, struct of_phandle_args *out_irq)
27 {
28 return 0;
29 }
30
of_pci_find_child_device(struct device_node * parent,unsigned int devfn)31 static inline struct device_node *of_pci_find_child_device(struct device_node *parent,
32 unsigned int devfn)
33 {
34 return NULL;
35 }
36
of_pci_get_devfn(struct device_node * np)37 static inline int of_pci_get_devfn(struct device_node *np)
38 {
39 return -EINVAL;
40 }
41
42 static inline int
of_irq_parse_and_map_pci(const struct pci_dev * dev,u8 slot,u8 pin)43 of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin)
44 {
45 return 0;
46 }
47
48 static inline int
of_pci_parse_bus_range(struct device_node * node,struct resource * res)49 of_pci_parse_bus_range(struct device_node *node, struct resource *res)
50 {
51 return -EINVAL;
52 }
53
54 static inline int
of_get_pci_domain_nr(struct device_node * node)55 of_get_pci_domain_nr(struct device_node *node)
56 {
57 return -1;
58 }
59
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)60 static inline int of_pci_map_rid(struct device_node *np, u32 rid,
61 const char *map_name, const char *map_mask_name,
62 struct device_node **target, u32 *id_out)
63 {
64 return -EINVAL;
65 }
66
67 static inline int
of_pci_get_max_link_speed(struct device_node * node)68 of_pci_get_max_link_speed(struct device_node *node)
69 {
70 return -EINVAL;
71 }
72
of_pci_check_probe_only(void)73 static inline void of_pci_check_probe_only(void) { }
74 #endif
75
76 #if defined(CONFIG_OF_ADDRESS)
77 int of_pci_get_host_bridge_resources(struct device_node *dev,
78 unsigned char busno, unsigned char bus_max,
79 struct list_head *resources, resource_size_t *io_base);
80 #else
of_pci_get_host_bridge_resources(struct device_node * dev,unsigned char busno,unsigned char bus_max,struct list_head * resources,resource_size_t * io_base)81 static inline int of_pci_get_host_bridge_resources(struct device_node *dev,
82 unsigned char busno, unsigned char bus_max,
83 struct list_head *resources, resource_size_t *io_base)
84 {
85 return -EINVAL;
86 }
87 #endif
88
89 #endif
90