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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
[~shefty/rdma-dev.git] / include / linux / of_address.h
1 #ifndef __OF_ADDRESS_H
2 #define __OF_ADDRESS_H
3 #include <linux/ioport.h>
4 #include <linux/errno.h>
5 #include <linux/of.h>
6
7 #ifdef CONFIG_OF_ADDRESS
8 extern u64 of_translate_address(struct device_node *np, const __be32 *addr);
9 extern bool of_can_translate_address(struct device_node *dev);
10 extern int of_address_to_resource(struct device_node *dev, int index,
11                                   struct resource *r);
12 extern struct device_node *of_find_matching_node_by_address(
13                                         struct device_node *from,
14                                         const struct of_device_id *matches,
15                                         u64 base_address);
16 extern void __iomem *of_iomap(struct device_node *device, int index);
17
18 /* Extract an address from a device, returns the region size and
19  * the address space flags too. The PCI version uses a BAR number
20  * instead of an absolute index
21  */
22 extern const __be32 *of_get_address(struct device_node *dev, int index,
23                            u64 *size, unsigned int *flags);
24
25 #ifndef pci_address_to_pio
26 static inline unsigned long pci_address_to_pio(phys_addr_t addr) { return -1; }
27 #define pci_address_to_pio pci_address_to_pio
28 #endif
29
30 #else /* CONFIG_OF_ADDRESS */
31 #ifndef of_address_to_resource
32 static inline int of_address_to_resource(struct device_node *dev, int index,
33                                          struct resource *r)
34 {
35         return -EINVAL;
36 }
37 #endif
38 static inline struct device_node *of_find_matching_node_by_address(
39                                         struct device_node *from,
40                                         const struct of_device_id *matches,
41                                         u64 base_address)
42 {
43         return NULL;
44 }
45 static inline void __iomem *of_iomap(struct device_node *device, int index)
46 {
47         return NULL;
48 }
49 static inline const __be32 *of_get_address(struct device_node *dev, int index,
50                                         u64 *size, unsigned int *flags)
51 {
52         return NULL;
53 }
54 #endif /* CONFIG_OF_ADDRESS */
55
56
57 #if defined(CONFIG_OF_ADDRESS) && defined(CONFIG_PCI)
58 extern const __be32 *of_get_pci_address(struct device_node *dev, int bar_no,
59                                u64 *size, unsigned int *flags);
60 extern int of_pci_address_to_resource(struct device_node *dev, int bar,
61                                       struct resource *r);
62 #else /* CONFIG_OF_ADDRESS && CONFIG_PCI */
63 static inline int of_pci_address_to_resource(struct device_node *dev, int bar,
64                                              struct resource *r)
65 {
66         return -ENOSYS;
67 }
68
69 static inline const __be32 *of_get_pci_address(struct device_node *dev,
70                 int bar_no, u64 *size, unsigned int *flags)
71 {
72         return NULL;
73 }
74 #endif /* CONFIG_OF_ADDRESS && CONFIG_PCI */
75
76 #endif /* __OF_ADDRESS_H */
77