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