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-rw-r--r--include/linux/gpio/consumer.h109
1 files changed, 62 insertions, 47 deletions
diff --git a/include/linux/gpio/consumer.h b/include/linux/gpio/consumer.h
index b7ce0c64c6f3..12f146fa6604 100644
--- a/include/linux/gpio/consumer.h
+++ b/include/linux/gpio/consumer.h
@@ -16,8 +16,6 @@ struct device;
16 */ 16 */
17struct gpio_desc; 17struct gpio_desc;
18 18
19#ifdef CONFIG_GPIOLIB
20
21#define GPIOD_FLAGS_BIT_DIR_SET BIT(0) 19#define GPIOD_FLAGS_BIT_DIR_SET BIT(0)
22#define GPIOD_FLAGS_BIT_DIR_OUT BIT(1) 20#define GPIOD_FLAGS_BIT_DIR_OUT BIT(1)
23#define GPIOD_FLAGS_BIT_DIR_VAL BIT(2) 21#define GPIOD_FLAGS_BIT_DIR_VAL BIT(2)
@@ -34,64 +32,38 @@ enum gpiod_flags {
34 GPIOD_FLAGS_BIT_DIR_VAL, 32 GPIOD_FLAGS_BIT_DIR_VAL,
35}; 33};
36 34
35#ifdef CONFIG_GPIOLIB
36
37/* Acquire and dispose GPIOs */ 37/* Acquire and dispose GPIOs */
38struct gpio_desc *__must_check __gpiod_get(struct device *dev, 38struct gpio_desc *__must_check __gpiod_get(struct device *dev,
39 const char *con_id, 39 const char *con_id,
40 enum gpiod_flags flags); 40 enum gpiod_flags flags);
41#define __gpiod_get(dev, con_id, flags, ...) __gpiod_get(dev, con_id, flags)
42#define gpiod_get(varargs...) __gpiod_get(varargs, 0)
43struct gpio_desc *__must_check __gpiod_get_index(struct device *dev, 41struct gpio_desc *__must_check __gpiod_get_index(struct device *dev,
44 const char *con_id, 42 const char *con_id,
45 unsigned int idx, 43 unsigned int idx,
46 enum gpiod_flags flags); 44 enum gpiod_flags flags);
47#define __gpiod_get_index(dev, con_id, index, flags, ...) \
48 __gpiod_get_index(dev, con_id, index, flags)
49#define gpiod_get_index(varargs...) __gpiod_get_index(varargs, 0)
50struct gpio_desc *__must_check __gpiod_get_optional(struct device *dev, 45struct gpio_desc *__must_check __gpiod_get_optional(struct device *dev,
51 const char *con_id, 46 const char *con_id,
52 enum gpiod_flags flags); 47 enum gpiod_flags flags);
53#define __gpiod_get_optional(dev, con_id, flags, ...) \
54 __gpiod_get_optional(dev, con_id, flags)
55#define gpiod_get_optional(varargs...) __gpiod_get_optional(varargs, 0)
56struct gpio_desc *__must_check __gpiod_get_index_optional(struct device *dev, 48struct gpio_desc *__must_check __gpiod_get_index_optional(struct device *dev,
57 const char *con_id, 49 const char *con_id,
58 unsigned int index, 50 unsigned int index,
59 enum gpiod_flags flags); 51 enum gpiod_flags flags);
60#define __gpiod_get_index_optional(dev, con_id, index, flags, ...) \
61 __gpiod_get_index_optional(dev, con_id, index, flags)
62#define gpiod_get_index_optional(varargs...) \
63 __gpiod_get_index_optional(varargs, 0)
64
65void gpiod_put(struct gpio_desc *desc); 52void gpiod_put(struct gpio_desc *desc);
66 53
67struct gpio_desc *__must_check __devm_gpiod_get(struct device *dev, 54struct gpio_desc *__must_check __devm_gpiod_get(struct device *dev,
68 const char *con_id, 55 const char *con_id,
69 enum gpiod_flags flags); 56 enum gpiod_flags flags);
70#define __devm_gpiod_get(dev, con_id, flags, ...) \
71 __devm_gpiod_get(dev, con_id, flags)
72#define devm_gpiod_get(varargs...) __devm_gpiod_get(varargs, 0)
73struct gpio_desc *__must_check __devm_gpiod_get_index(struct device *dev, 57struct gpio_desc *__must_check __devm_gpiod_get_index(struct device *dev,
74 const char *con_id, 58 const char *con_id,
75 unsigned int idx, 59 unsigned int idx,
76 enum gpiod_flags flags); 60 enum gpiod_flags flags);
77#define __devm_gpiod_get_index(dev, con_id, index, flags, ...) \
78 __devm_gpiod_get_index(dev, con_id, index, flags)
79#define devm_gpiod_get_index(varargs...) __devm_gpiod_get_index(varargs, 0)
80struct gpio_desc *__must_check __devm_gpiod_get_optional(struct device *dev, 61struct gpio_desc *__must_check __devm_gpiod_get_optional(struct device *dev,
81 const char *con_id, 62 const char *con_id,
82 enum gpiod_flags flags); 63 enum gpiod_flags flags);
83#define __devm_gpiod_get_optional(dev, con_id, flags, ...) \
84 __devm_gpiod_get_optional(dev, con_id, flags)
85#define devm_gpiod_get_optional(varargs...) \
86 __devm_gpiod_get_optional(varargs, 0)
87struct gpio_desc *__must_check 64struct gpio_desc *__must_check
88__devm_gpiod_get_index_optional(struct device *dev, const char *con_id, 65__devm_gpiod_get_index_optional(struct device *dev, const char *con_id,
89 unsigned int index, enum gpiod_flags flags); 66 unsigned int index, enum gpiod_flags flags);
90#define __devm_gpiod_get_index_optional(dev, con_id, index, flags, ...) \
91 __devm_gpiod_get_index_optional(dev, con_id, index, flags)
92#define devm_gpiod_get_index_optional(varargs...) \
93 __devm_gpiod_get_index_optional(varargs, 0)
94
95void devm_gpiod_put(struct device *dev, struct gpio_desc *desc); 67void devm_gpiod_put(struct device *dev, struct gpio_desc *desc);
96 68
97int gpiod_get_direction(const struct gpio_desc *desc); 69int gpiod_get_direction(const struct gpio_desc *desc);
@@ -124,27 +96,31 @@ int desc_to_gpio(const struct gpio_desc *desc);
124 96
125#else /* CONFIG_GPIOLIB */ 97#else /* CONFIG_GPIOLIB */
126 98
127static inline struct gpio_desc *__must_check gpiod_get(struct device *dev, 99static inline struct gpio_desc *__must_check __gpiod_get(struct device *dev,
128 const char *con_id) 100 const char *con_id,
101 enum gpiod_flags flags)
129{ 102{
130 return ERR_PTR(-ENOSYS); 103 return ERR_PTR(-ENOSYS);
131} 104}
132static inline struct gpio_desc *__must_check gpiod_get_index(struct device *dev, 105static inline struct gpio_desc *__must_check
133 const char *con_id, 106__gpiod_get_index(struct device *dev,
134 unsigned int idx) 107 const char *con_id,
108 unsigned int idx,
109 enum gpiod_flags flags)
135{ 110{
136 return ERR_PTR(-ENOSYS); 111 return ERR_PTR(-ENOSYS);
137} 112}
138 113
139static inline struct gpio_desc *__must_check 114static inline struct gpio_desc *__must_check
140gpiod_get_optional(struct device *dev, const char *con_id) 115__gpiod_get_optional(struct device *dev, const char *con_id,
116 enum gpiod_flags flags)
141{ 117{
142 return ERR_PTR(-ENOSYS); 118 return ERR_PTR(-ENOSYS);
143} 119}
144 120
145static inline struct gpio_desc *__must_check 121static inline struct gpio_desc *__must_check
146gpiod_get_index_optional(struct device *dev, const char *con_id, 122__gpiod_get_index_optional(struct device *dev, const char *con_id,
147 unsigned int index) 123 unsigned int index, enum gpiod_flags flags)
148{ 124{
149 return ERR_PTR(-ENOSYS); 125 return ERR_PTR(-ENOSYS);
150} 126}
@@ -157,28 +133,33 @@ static inline void gpiod_put(struct gpio_desc *desc)
157 WARN_ON(1); 133 WARN_ON(1);
158} 134}
159 135
160static inline struct gpio_desc *__must_check devm_gpiod_get(struct device *dev, 136static inline struct gpio_desc *__must_check
161 const char *con_id) 137__devm_gpiod_get(struct device *dev,
138 const char *con_id,
139 enum gpiod_flags flags)
162{ 140{
163 return ERR_PTR(-ENOSYS); 141 return ERR_PTR(-ENOSYS);
164} 142}
165static inline 143static inline
166struct gpio_desc *__must_check devm_gpiod_get_index(struct device *dev, 144struct gpio_desc *__must_check
167 const char *con_id, 145__devm_gpiod_get_index(struct device *dev,
168 unsigned int idx) 146 const char *con_id,
147 unsigned int idx,
148 enum gpiod_flags flags)
169{ 149{
170 return ERR_PTR(-ENOSYS); 150 return ERR_PTR(-ENOSYS);
171} 151}
172 152
173static inline struct gpio_desc *__must_check 153static inline struct gpio_desc *__must_check
174devm_gpiod_get_optional(struct device *dev, const char *con_id) 154__devm_gpiod_get_optional(struct device *dev, const char *con_id,
155 enum gpiod_flags flags)
175{ 156{
176 return ERR_PTR(-ENOSYS); 157 return ERR_PTR(-ENOSYS);
177} 158}
178 159
179static inline struct gpio_desc *__must_check 160static inline struct gpio_desc *__must_check
180devm_gpiod_get_index_optional(struct device *dev, const char *con_id, 161__devm_gpiod_get_index_optional(struct device *dev, const char *con_id,
181 unsigned int index) 162 unsigned int index, enum gpiod_flags flags)
182{ 163{
183 return ERR_PTR(-ENOSYS); 164 return ERR_PTR(-ENOSYS);
184} 165}
@@ -303,9 +284,43 @@ static inline int desc_to_gpio(const struct gpio_desc *desc)
303 return -EINVAL; 284 return -EINVAL;
304} 285}
305 286
306
307#endif /* CONFIG_GPIOLIB */ 287#endif /* CONFIG_GPIOLIB */
308 288
289/*
290 * Vararg-hacks! This is done to transition the kernel to always pass
291 * the options flags argument to the below functions. During a transition
292 * phase these vararg macros make both old-and-newstyle code compile,
293 * but when all calls to the elder API are removed, these should go away
294 * and the __gpiod_get() etc functions above be renamed just gpiod_get()
295 * etc.
296 */
297#define __gpiod_get(dev, con_id, flags, ...) __gpiod_get(dev, con_id, flags)
298#define gpiod_get(varargs...) __gpiod_get(varargs, 0)
299#define __gpiod_get_index(dev, con_id, index, flags, ...) \
300 __gpiod_get_index(dev, con_id, index, flags)
301#define gpiod_get_index(varargs...) __gpiod_get_index(varargs, 0)
302#define __gpiod_get_optional(dev, con_id, flags, ...) \
303 __gpiod_get_optional(dev, con_id, flags)
304#define gpiod_get_optional(varargs...) __gpiod_get_optional(varargs, 0)
305#define __gpiod_get_index_optional(dev, con_id, index, flags, ...) \
306 __gpiod_get_index_optional(dev, con_id, index, flags)
307#define gpiod_get_index_optional(varargs...) \
308 __gpiod_get_index_optional(varargs, 0)
309#define __devm_gpiod_get(dev, con_id, flags, ...) \
310 __devm_gpiod_get(dev, con_id, flags)
311#define devm_gpiod_get(varargs...) __devm_gpiod_get(varargs, 0)
312#define __devm_gpiod_get_index(dev, con_id, index, flags, ...) \
313 __devm_gpiod_get_index(dev, con_id, index, flags)
314#define devm_gpiod_get_index(varargs...) __devm_gpiod_get_index(varargs, 0)
315#define __devm_gpiod_get_optional(dev, con_id, flags, ...) \
316 __devm_gpiod_get_optional(dev, con_id, flags)
317#define devm_gpiod_get_optional(varargs...) \
318 __devm_gpiod_get_optional(varargs, 0)
319#define __devm_gpiod_get_index_optional(dev, con_id, index, flags, ...) \
320 __devm_gpiod_get_index_optional(dev, con_id, index, flags)
321#define devm_gpiod_get_index_optional(varargs...) \
322 __devm_gpiod_get_index_optional(varargs, 0)
323
309#if IS_ENABLED(CONFIG_GPIOLIB) && IS_ENABLED(CONFIG_GPIO_SYSFS) 324#if IS_ENABLED(CONFIG_GPIOLIB) && IS_ENABLED(CONFIG_GPIO_SYSFS)
310 325
311int gpiod_export(struct gpio_desc *desc, bool direction_may_change); 326int gpiod_export(struct gpio_desc *desc, bool direction_may_change);
generated by cgit v1.2.2 (git 2.25.0) at 2026-01-08 08:05:45 -0500