Gitiles
Code Review Sign In
gerrit-public.fairphone.software / kernel / msm-4.9 / 530210c7814e83564c7ca7bca8192515042c0b63 / . / include / linux / of_irq.h
blob: 8d9f85560d48e94c90ff4b56514a3f0e5fb2dc98 [file] [log] [blame]
Grant Likelye3873442010-06-18 11:09:59 -0600[diff] [blame]1#ifndef __OF_IRQ_H
2#define __OF_IRQ_H
3
Grant Likelye3873442010-06-18 11:09:59 -0600[diff] [blame]4#include <linux/types.h>
Grant Likely7dc2e112010-06-08 07:48:06 -0600[diff] [blame]5#include <linux/errno.h>
Grant Likely530719b2010-10-21 11:34:55 -0600[diff] [blame]6#include <linux/irq.h>
Grant Likelyd593f252012-02-24 08:24:17 -0700[diff] [blame]7#include <linux/irqdomain.h>
Grant Likely7dc2e112010-06-08 07:48:06 -0600[diff] [blame]8#include <linux/ioport.h>
Grant Likelye3873442010-06-18 11:09:59 -0600[diff] [blame]9#include <linux/of.h>
10
Rob Herringc71a54b2011-09-20 15:13:50 -0500[diff] [blame]11typedef int (*of_irq_init_cb_t)(struct device_node *, struct device_node *);
12
Grant Likely7dc2e112010-06-08 07:48:06 -0600[diff] [blame]13/*
14 * Workarounds only applied to 32bit powermac machines
15 */
16#define OF_IMAP_OLDWORLD_MAC 0x00000001
17#define OF_IMAP_NO_PHANDLE 0x00000002
18
19#if defined(CONFIG_PPC32) && defined(CONFIG_PPC_PMAC)
20extern unsigned int of_irq_workarounds;
21extern struct device_node *of_irq_dflt_pic;
Grant Likely0c02c802013-09-19 11:22:36 -0500[diff] [blame]22extern int of_irq_parse_oldworld(struct device_node *device, int index,
Grant Likely530210c2013-09-15 16:39:11 +0100[diff] [blame^]23 struct of_phandle_args *out_irq);
Grant Likely7dc2e112010-06-08 07:48:06 -0600[diff] [blame]24#else /* CONFIG_PPC32 && CONFIG_PPC_PMAC */
25#define of_irq_workarounds (0)
26#define of_irq_dflt_pic (NULL)
Grant Likely0c02c802013-09-19 11:22:36 -0500[diff] [blame]27static inline int of_irq_parse_oldworld(struct device_node *device, int index,
Grant Likely530210c2013-09-15 16:39:11 +0100[diff] [blame^]28 struct of_phandle_args *out_irq)
Grant Likely7dc2e112010-06-08 07:48:06 -0600[diff] [blame]29{
30 return -EINVAL;
31}
32#endif /* CONFIG_PPC32 && CONFIG_PPC_PMAC */
33
34
Grant Likely0c02c802013-09-19 11:22:36 -0500[diff] [blame]35extern int of_irq_parse_raw(struct device_node *parent, const __be32 *intspec,
Kim Phillipsd2e41512012-10-08 19:42:04 -0500[diff] [blame]36 u32 ointsize, const __be32 *addr,
Grant Likely530210c2013-09-15 16:39:11 +0100[diff] [blame^]37 struct of_phandle_args *out_irq);
Grant Likely0c02c802013-09-19 11:22:36 -0500[diff] [blame]38extern int of_irq_parse_one(struct device_node *device, int index,
Grant Likely530210c2013-09-15 16:39:11 +0100[diff] [blame^]39 struct of_phandle_args *out_irq);
Grant Likelye3873442010-06-18 11:09:59 -0600[diff] [blame]40extern unsigned int irq_create_of_mapping(struct device_node *controller,
41 const u32 *intspec,
42 unsigned int intsize);
Grant Likely7dc2e112010-06-08 07:48:06 -0600[diff] [blame]43extern int of_irq_to_resource(struct device_node *dev, int index,
44 struct resource *r);
Andres Salomon52f65372010-10-10 21:35:05 -0600[diff] [blame]45extern int of_irq_count(struct device_node *dev);
46extern int of_irq_to_resource_table(struct device_node *dev,
47 struct resource *res, int nr_irqs);
Grant Likelye3873442010-06-18 11:09:59 -0600[diff] [blame]48
Rob Herringc71a54b2011-09-20 15:13:50 -0500[diff] [blame]49extern void of_irq_init(const struct of_device_id *matches);
Grant Likely08a543a2011-07-26 03:19:06 -0600[diff] [blame]50
Rob Herringb0b8c962013-09-04 10:52:57 -0500[diff] [blame]51#if defined(CONFIG_OF)
52/*
53 * irq_of_parse_and_map() is used by all OF enabled platforms; but SPARC
54 * implements it differently. However, the prototype is the same for all,
55 * so declare it here regardless of the CONFIG_OF_IRQ setting.
56 */
57extern unsigned int irq_of_parse_and_map(struct device_node *node, int index);
58extern struct device_node *of_irq_find_parent(struct device_node *child);
Thomas Abraham766644d2012-03-25 20:32:49 +0530[diff] [blame]59
60#else /* !CONFIG_OF */
61static inline unsigned int irq_of_parse_and_map(struct device_node *dev,
62 int index)
63{
64 return 0;
65}
Lee Jones62861092012-08-08 13:44:59 +0100[diff] [blame]66
67static inline void *of_irq_find_parent(struct device_node *child)
68{
69 return NULL;
70}
Thomas Abraham766644d2012-03-25 20:32:49 +0530[diff] [blame]71#endif /* !CONFIG_OF */
72
Grant Likelye3873442010-06-18 11:09:59 -0600[diff] [blame]73#endif /* __OF_IRQ_H */