drivers: of: add return value to of_reserved_mem_device_init()
[sfrench/cifs-2.6.git] / include / linux / of_reserved_mem.h
1 #ifndef __OF_RESERVED_MEM_H
2 #define __OF_RESERVED_MEM_H
3
4 struct device;
5 struct of_phandle_args;
6 struct reserved_mem_ops;
7
8 struct reserved_mem {
9         const char                      *name;
10         unsigned long                   fdt_node;
11         unsigned long                   phandle;
12         const struct reserved_mem_ops   *ops;
13         phys_addr_t                     base;
14         phys_addr_t                     size;
15         void                            *priv;
16 };
17
18 struct reserved_mem_ops {
19         int     (*device_init)(struct reserved_mem *rmem,
20                                struct device *dev);
21         void    (*device_release)(struct reserved_mem *rmem,
22                                   struct device *dev);
23 };
24
25 typedef int (*reservedmem_of_init_fn)(struct reserved_mem *rmem);
26
27 #define RESERVEDMEM_OF_DECLARE(name, compat, init)                      \
28         _OF_DECLARE(reservedmem, name, compat, init, reservedmem_of_init_fn)
29
30 #ifdef CONFIG_OF_RESERVED_MEM
31 int of_reserved_mem_device_init(struct device *dev);
32 void of_reserved_mem_device_release(struct device *dev);
33
34 void fdt_init_reserved_mem(void);
35 void fdt_reserved_mem_save_node(unsigned long node, const char *uname,
36                                phys_addr_t base, phys_addr_t size);
37 #else
38 static inline int of_reserved_mem_device_init(struct device *dev)
39 {
40         return -ENOSYS;
41 }
42 static inline void of_reserved_mem_device_release(struct device *pdev) { }
43
44 static inline void fdt_init_reserved_mem(void) { }
45 static inline void fdt_reserved_mem_save_node(unsigned long node,
46                 const char *uname, phys_addr_t base, phys_addr_t size) { }
47 #endif
48
49 #endif /* __OF_RESERVED_MEM_H */