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Diffstat (limited to 'include/linux/of_gpio.h')
-rw-r--r--include/linux/of_gpio.h29
1 files changed, 24 insertions, 5 deletions
diff --git a/include/linux/of_gpio.h b/include/linux/of_gpio.h
index a83dc6f5008e..f14123a5a9df 100644
--- a/include/linux/of_gpio.h
+++ b/include/linux/of_gpio.h
@@ -19,6 +19,7 @@
19#include <linux/errno.h> 19#include <linux/errno.h>
20#include <linux/gpio.h> 20#include <linux/gpio.h>
21#include <linux/of.h> 21#include <linux/of.h>
22#include <linux/gpio/consumer.h>
22 23
23struct device_node; 24struct device_node;
24 25
@@ -47,7 +48,7 @@ static inline struct of_mm_gpio_chip *to_of_mm_gpio_chip(struct gpio_chip *gc)
47 return container_of(gc, struct of_mm_gpio_chip, gc); 48 return container_of(gc, struct of_mm_gpio_chip, gc);
48} 49}
49 50
50extern int of_get_named_gpio_flags(struct device_node *np, 51extern struct gpio_desc *of_get_named_gpiod_flags(struct device_node *np,
51 const char *list_name, int index, enum of_gpio_flags *flags); 52 const char *list_name, int index, enum of_gpio_flags *flags);
52 53
53extern int of_mm_gpiochip_add(struct device_node *np, 54extern int of_mm_gpiochip_add(struct device_node *np,
@@ -62,10 +63,10 @@ extern int of_gpio_simple_xlate(struct gpio_chip *gc,
62#else /* CONFIG_OF_GPIO */ 63#else /* CONFIG_OF_GPIO */
63 64
64/* Drivers may not strictly depend on the GPIO support, so let them link. */ 65/* Drivers may not strictly depend on the GPIO support, so let them link. */
65static inline int of_get_named_gpio_flags(struct device_node *np, 66static inline struct gpio_desc *of_get_named_gpiod_flags(struct device_node *np,
66 const char *list_name, int index, enum of_gpio_flags *flags) 67 const char *list_name, int index, enum of_gpio_flags *flags)
67{ 68{
68 return -ENOSYS; 69 return ERR_PTR(-ENOSYS);
69} 70}
70 71
71static inline int of_gpio_simple_xlate(struct gpio_chip *gc, 72static inline int of_gpio_simple_xlate(struct gpio_chip *gc,
@@ -80,6 +81,18 @@ static inline void of_gpiochip_remove(struct gpio_chip *gc) { }
80 81
81#endif /* CONFIG_OF_GPIO */ 82#endif /* CONFIG_OF_GPIO */
82 83
84static inline int of_get_named_gpio_flags(struct device_node *np,
85 const char *list_name, int index, enum of_gpio_flags *flags)
86{
87 struct gpio_desc *desc;
88 desc = of_get_named_gpiod_flags(np, list_name, index, flags);
89
90 if (IS_ERR(desc))
91 return PTR_ERR(desc);
92 else
93 return desc_to_gpio(desc);
94}
95
83/** 96/**
84 * of_gpio_named_count() - Count GPIOs for a device 97 * of_gpio_named_count() - Count GPIOs for a device
85 * @np: device node to count GPIOs for 98 * @np: device node to count GPIOs for
@@ -117,15 +130,21 @@ static inline int of_gpio_count(struct device_node *np)
117} 130}
118 131
119/** 132/**
120 * of_get_gpio_flags() - Get a GPIO number and flags to use with GPIO API 133 * of_get_gpiod_flags() - Get a GPIO descriptor and flags to use with GPIO API
121 * @np: device node to get GPIO from 134 * @np: device node to get GPIO from
122 * @index: index of the GPIO 135 * @index: index of the GPIO
123 * @flags: a flags pointer to fill in 136 * @flags: a flags pointer to fill in
124 * 137 *
125 * Returns GPIO number to use with Linux generic GPIO API, or one of the errno 138 * Returns GPIO descriptor to use with Linux generic GPIO API, or a errno
126 * value on the error condition. If @flags is not NULL the function also fills 139 * value on the error condition. If @flags is not NULL the function also fills
127 * in flags for the GPIO. 140 * in flags for the GPIO.
128 */ 141 */
142static inline struct gpio_desc *of_get_gpiod_flags(struct device_node *np,
143 int index, enum of_gpio_flags *flags)
144{
145 return of_get_named_gpiod_flags(np, "gpios", index, flags);
146}
147
129static inline int of_get_gpio_flags(struct device_node *np, int index, 148static inline int of_get_gpio_flags(struct device_node *np, int index,
130 enum of_gpio_flags *flags) 149 enum of_gpio_flags *flags)
131{ 150{