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authorLinus Torvalds <torvalds@linux-foundation.org>2010-08-05 18:57:35 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2010-08-05 18:57:35 -0400
commit03c0c29aff7e56b722eb6c47eace222b140d0377 (patch)
tree47267a19b523159cf36a050ef3c35f4dbdb33016 /include/linux/of_gpio.h
parentc60c6a96b7bb0f1f8bb635fdfcf5b592aaf062b4 (diff)
parent7fb8f881c54beb05dd4d2c947dada1c636581d87 (diff)
Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6
* 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6: (63 commits) of/platform: Register of_platform_drivers with an "of:" prefix of/address: Clean up function declarations of/spi: call of_register_spi_devices() from spi core code of: Provide default of_node_to_nid() implementation. of/device: Make of_device_make_bus_id() usable by other code. of/irq: Fix endian issues in parsing interrupt specifiers of: Fix phandle endian issues of/flattree: fix of_flat_dt_is_compatible() to match the full compatible string of: remove of_default_bus_ids of: make of_find_device_by_node generic microblaze: remove references to of_device and to_of_device sparc: remove references to of_device and to_of_device powerpc: remove references to of_device and to_of_device of/device: Replace of_device with platform_device in includes and core code of/device: Protect against binding of_platform_drivers to non-OF devices of: remove asm/of_device.h of: remove asm/of_platform.h of/platform: remove all of_bus_type and of_platform_bus_type references of: Merge of_platform_bus_type with platform_bus_type drivercore/of: Add OF style matching to platform bus ... Fix up trivial conflicts in arch/microblaze/kernel/Makefile due to just some obj-y removals by the devicetree branch, while the microblaze updates added a new file.
Diffstat (limited to 'include/linux/of_gpio.h')
-rw-r--r--include/linux/of_gpio.h35
1 files changed, 11 insertions, 24 deletions
diff --git a/include/linux/of_gpio.h b/include/linux/of_gpio.h
index fc2472c3c254..6598c04dab01 100644
--- a/include/linux/of_gpio.h
+++ b/include/linux/of_gpio.h
@@ -33,34 +33,17 @@ enum of_gpio_flags {
33#ifdef CONFIG_OF_GPIO 33#ifdef CONFIG_OF_GPIO
34 34
35/* 35/*
36 * Generic OF GPIO chip
37 */
38struct of_gpio_chip {
39 struct gpio_chip gc;
40 int gpio_cells;
41 int (*xlate)(struct of_gpio_chip *of_gc, struct device_node *np,
42 const void *gpio_spec, enum of_gpio_flags *flags);
43};
44
45static inline struct of_gpio_chip *to_of_gpio_chip(struct gpio_chip *gc)
46{
47 return container_of(gc, struct of_gpio_chip, gc);
48}
49
50/*
51 * OF GPIO chip for memory mapped banks 36 * OF GPIO chip for memory mapped banks
52 */ 37 */
53struct of_mm_gpio_chip { 38struct of_mm_gpio_chip {
54 struct of_gpio_chip of_gc; 39 struct gpio_chip gc;
55 void (*save_regs)(struct of_mm_gpio_chip *mm_gc); 40 void (*save_regs)(struct of_mm_gpio_chip *mm_gc);
56 void __iomem *regs; 41 void __iomem *regs;
57}; 42};
58 43
59static inline struct of_mm_gpio_chip *to_of_mm_gpio_chip(struct gpio_chip *gc) 44static inline struct of_mm_gpio_chip *to_of_mm_gpio_chip(struct gpio_chip *gc)
60{ 45{
61 struct of_gpio_chip *of_gc = to_of_gpio_chip(gc); 46 return container_of(gc, struct of_mm_gpio_chip, gc);
62
63 return container_of(of_gc, struct of_mm_gpio_chip, of_gc);
64} 47}
65 48
66extern int of_get_gpio_flags(struct device_node *np, int index, 49extern int of_get_gpio_flags(struct device_node *np, int index,
@@ -69,11 +52,12 @@ extern unsigned int of_gpio_count(struct device_node *np);
69 52
70extern int of_mm_gpiochip_add(struct device_node *np, 53extern int of_mm_gpiochip_add(struct device_node *np,
71 struct of_mm_gpio_chip *mm_gc); 54 struct of_mm_gpio_chip *mm_gc);
72extern int of_gpio_simple_xlate(struct of_gpio_chip *of_gc, 55
73 struct device_node *np, 56extern void of_gpiochip_add(struct gpio_chip *gc);
74 const void *gpio_spec, 57extern void of_gpiochip_remove(struct gpio_chip *gc);
75 enum of_gpio_flags *flags); 58extern struct gpio_chip *of_node_to_gpiochip(struct device_node *np);
76#else 59
60#else /* CONFIG_OF_GPIO */
77 61
78/* Drivers may not strictly depend on the GPIO support, so let them link. */ 62/* Drivers may not strictly depend on the GPIO support, so let them link. */
79static inline int of_get_gpio_flags(struct device_node *np, int index, 63static inline int of_get_gpio_flags(struct device_node *np, int index,
@@ -87,6 +71,9 @@ static inline unsigned int of_gpio_count(struct device_node *np)
87 return 0; 71 return 0;
88} 72}
89 73
74static inline void of_gpiochip_add(struct gpio_chip *gc) { }
75static inline void of_gpiochip_remove(struct gpio_chip *gc) { }
76
90#endif /* CONFIG_OF_GPIO */ 77#endif /* CONFIG_OF_GPIO */
91 78
92/** 79/**