1 /* SPDX-License-Identifier: GPL-2.0 */
5 #include <linux/types.h>
6 #include <linux/errno.h>
8 #include <linux/irqdomain.h>
9 #include <linux/ioport.h>
12 typedef int (*of_irq_init_cb_t
)(struct device_node
*, struct device_node
*);
15 * Workarounds only applied to 32bit powermac machines
17 #define OF_IMAP_OLDWORLD_MAC 0x00000001
18 #define OF_IMAP_NO_PHANDLE 0x00000002
20 #if defined(CONFIG_PPC32) && defined(CONFIG_PPC_PMAC)
21 extern unsigned int of_irq_workarounds
;
22 extern struct device_node
*of_irq_dflt_pic
;
23 extern int of_irq_parse_oldworld(struct device_node
*device
, int index
,
24 struct of_phandle_args
*out_irq
);
25 #else /* CONFIG_PPC32 && CONFIG_PPC_PMAC */
26 #define of_irq_workarounds (0)
27 #define of_irq_dflt_pic (NULL)
28 static inline int of_irq_parse_oldworld(struct device_node
*device
, int index
,
29 struct of_phandle_args
*out_irq
)
33 #endif /* CONFIG_PPC32 && CONFIG_PPC_PMAC */
35 extern int of_irq_parse_raw(const __be32
*addr
, struct of_phandle_args
*out_irq
);
36 extern unsigned int irq_create_of_mapping(struct of_phandle_args
*irq_data
);
37 extern int of_irq_to_resource(struct device_node
*dev
, int index
,
40 extern void of_irq_init(const struct of_device_id
*matches
);
43 extern int of_irq_parse_one(struct device_node
*device
, int index
,
44 struct of_phandle_args
*out_irq
);
45 extern int of_irq_count(struct device_node
*dev
);
46 extern int of_irq_get(struct device_node
*dev
, int index
);
47 extern int of_irq_get_byname(struct device_node
*dev
, const char *name
);
48 extern int of_irq_to_resource_table(struct device_node
*dev
,
49 struct resource
*res
, int nr_irqs
);
50 extern struct device_node
*of_irq_find_parent(struct device_node
*child
);
51 extern struct irq_domain
*of_msi_get_domain(struct device
*dev
,
52 struct device_node
*np
,
53 enum irq_domain_bus_token token
);
54 extern struct irq_domain
*of_msi_map_get_device_domain(struct device
*dev
,
57 extern void of_msi_configure(struct device
*dev
, struct device_node
*np
);
58 u32
of_msi_map_id(struct device
*dev
, struct device_node
*msi_np
, u32 id_in
);
60 static inline int of_irq_parse_one(struct device_node
*device
, int index
,
61 struct of_phandle_args
*out_irq
)
65 static inline int of_irq_count(struct device_node
*dev
)
69 static inline int of_irq_get(struct device_node
*dev
, int index
)
73 static inline int of_irq_get_byname(struct device_node
*dev
, const char *name
)
77 static inline int of_irq_to_resource_table(struct device_node
*dev
,
78 struct resource
*res
, int nr_irqs
)
82 static inline void *of_irq_find_parent(struct device_node
*child
)
87 static inline struct irq_domain
*of_msi_get_domain(struct device
*dev
,
88 struct device_node
*np
,
89 enum irq_domain_bus_token token
)
93 static inline struct irq_domain
*of_msi_map_get_device_domain(struct device
*dev
,
94 u32 id
, u32 bus_token
)
98 static inline void of_msi_configure(struct device
*dev
, struct device_node
*np
)
101 static inline u32
of_msi_map_id(struct device
*dev
,
102 struct device_node
*msi_np
, u32 id_in
)
108 #if defined(CONFIG_OF_IRQ) || defined(CONFIG_SPARC)
110 * irq_of_parse_and_map() is used by all OF enabled platforms; but SPARC
111 * implements it differently. However, the prototype is the same for all,
112 * so declare it here regardless of the CONFIG_OF_IRQ setting.
114 extern unsigned int irq_of_parse_and_map(struct device_node
*node
, int index
);
116 #else /* !CONFIG_OF && !CONFIG_SPARC */
117 static inline unsigned int irq_of_parse_and_map(struct device_node
*dev
,
122 #endif /* !CONFIG_OF */
124 #endif /* __OF_IRQ_H */