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Diffstat (limited to 'include/linux/of_irq.h')
-rw-r--r--include/linux/of_irq.h47
1 files changed, 17 insertions, 30 deletions
diff --git a/include/linux/of_irq.h b/include/linux/of_irq.h
index fcd63baee5f2..3f23b4472c31 100644
--- a/include/linux/of_irq.h
+++ b/include/linux/of_irq.h
@@ -8,22 +8,6 @@
8#include <linux/ioport.h> 8#include <linux/ioport.h>
9#include <linux/of.h> 9#include <linux/of.h>
10 10
11/**
12 * of_irq - container for device_node/irq_specifier pair for an irq controller
13 * @controller: pointer to interrupt controller device tree node
14 * @size: size of interrupt specifier
15 * @specifier: array of cells @size long specifing the specific interrupt
16 *
17 * This structure is returned when an interrupt is mapped. The controller
18 * field needs to be put() after use
19 */
20#define OF_MAX_IRQ_SPEC 4 /* We handle specifiers of at most 4 cells */
21struct of_irq {
22 struct device_node *controller; /* Interrupt controller node */
23 u32 size; /* Specifier size */
24 u32 specifier[OF_MAX_IRQ_SPEC]; /* Specifier copy */
25};
26
27typedef int (*of_irq_init_cb_t)(struct device_node *, struct device_node *); 11typedef int (*of_irq_init_cb_t)(struct device_node *, struct device_node *);
28 12
29/* 13/*
@@ -35,35 +19,38 @@ typedef int (*of_irq_init_cb_t)(struct device_node *, struct device_node *);
35#if defined(CONFIG_PPC32) && defined(CONFIG_PPC_PMAC) 19#if defined(CONFIG_PPC32) && defined(CONFIG_PPC_PMAC)
36extern unsigned int of_irq_workarounds; 20extern unsigned int of_irq_workarounds;
37extern struct device_node *of_irq_dflt_pic; 21extern struct device_node *of_irq_dflt_pic;
38extern int of_irq_map_oldworld(struct device_node *device, int index, 22extern int of_irq_parse_oldworld(struct device_node *device, int index,
39 struct of_irq *out_irq); 23 struct of_phandle_args *out_irq);
40#else /* CONFIG_PPC32 && CONFIG_PPC_PMAC */ 24#else /* CONFIG_PPC32 && CONFIG_PPC_PMAC */
41#define of_irq_workarounds (0) 25#define of_irq_workarounds (0)
42#define of_irq_dflt_pic (NULL) 26#define of_irq_dflt_pic (NULL)
43static inline int of_irq_map_oldworld(struct device_node *device, int index, 27static inline int of_irq_parse_oldworld(struct device_node *device, int index,
44 struct of_irq *out_irq) 28 struct of_phandle_args *out_irq)
45{ 29{
46 return -EINVAL; 30 return -EINVAL;
47} 31}
48#endif /* CONFIG_PPC32 && CONFIG_PPC_PMAC */ 32#endif /* CONFIG_PPC32 && CONFIG_PPC_PMAC */
49 33
50 34extern int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq);
51extern int of_irq_map_raw(struct device_node *parent, const __be32 *intspec, 35extern int of_irq_parse_one(struct device_node *device, int index,
52 u32 ointsize, const __be32 *addr, 36 struct of_phandle_args *out_irq);
53 struct of_irq *out_irq); 37extern unsigned int irq_create_of_mapping(struct of_phandle_args *irq_data);
54extern int of_irq_map_one(struct device_node *device, int index,
55 struct of_irq *out_irq);
56extern unsigned int irq_create_of_mapping(struct device_node *controller,
57 const u32 *intspec,
58 unsigned int intsize);
59extern int of_irq_to_resource(struct device_node *dev, int index, 38extern int of_irq_to_resource(struct device_node *dev, int index,
60 struct resource *r); 39 struct resource *r);
61extern int of_irq_count(struct device_node *dev);
62extern int of_irq_to_resource_table(struct device_node *dev, 40extern int of_irq_to_resource_table(struct device_node *dev,
63 struct resource *res, int nr_irqs); 41 struct resource *res, int nr_irqs);
64 42
65extern void of_irq_init(const struct of_device_id *matches); 43extern void of_irq_init(const struct of_device_id *matches);
66 44
45#ifdef CONFIG_OF_IRQ
46extern int of_irq_count(struct device_node *dev);
47#else
48static inline int of_irq_count(struct device_node *dev)
49{
50 return 0;
51}
52#endif
53
67#if defined(CONFIG_OF) 54#if defined(CONFIG_OF)
68/* 55/*
69 * irq_of_parse_and_map() is used by all OF enabled platforms; but SPARC 56 * irq_of_parse_and_map() is used by all OF enabled platforms; but SPARC