blob: a6c593e6766c59d03fc7060beeefbb9b36990763 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef GPIOLIB_OF_H
#define GPIOLIB_OF_H
#include <linux/err.h>
#include <linux/errno.h>
#include <linux/types.h>
#include <linux/notifier.h>
struct device;
struct gpio_chip;
struct gpio_desc;
struct gpio_device;
#ifdef CONFIG_OF_GPIO
struct gpio_desc *of_find_gpio(struct device_node *np,
const char *con_id,
unsigned int idx,
unsigned long *lookupflags);
int of_gpiochip_add(struct gpio_chip *gc);
void of_gpiochip_remove(struct gpio_chip *gc);
int of_gpio_get_count(struct device *dev, const char *con_id);
void of_gpio_dev_init(struct gpio_chip *gc, struct gpio_device *gdev);
#else
static inline struct gpio_desc *of_find_gpio(struct device_node *np,
const char *con_id,
unsigned int idx,
unsigned long *lookupflags)
{
return ERR_PTR(-ENOENT);
}
static inline int of_gpiochip_add(struct gpio_chip *gc) { return 0; }
static inline void of_gpiochip_remove(struct gpio_chip *gc) { }
static inline int of_gpio_get_count(struct device *dev, const char *con_id)
{
return 0;
}
static inline void of_gpio_dev_init(struct gpio_chip *gc,
struct gpio_device *gdev)
{
}
#endif /* CONFIG_OF_GPIO */
extern struct notifier_block gpio_of_notifier;
#endif /* GPIOLIB_OF_H */
|
