1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3 * OF helpers for the GPIO API
4 *
5 * Copyright (c) 2007-2008 MontaVista Software, Inc.
6 *
7 * Author: Anton Vorontsov <avorontsov@ru.mvista.com>
8 */
9
10 #ifndef __LINUX_OF_GPIO_H
11 #define __LINUX_OF_GPIO_H
12
13 #include <linux/compiler.h>
14 #include <linux/gpio/driver.h>
15 #include <linux/gpio.h> /* FIXME: Shouldn't be here */
16 #include <linux/of.h>
17
18 struct device_node;
19
20 #ifdef CONFIG_OF_GPIO
21
22 extern int of_get_named_gpio(const struct device_node *np,
23 const char *list_name, int index);
24
25 #else /* CONFIG_OF_GPIO */
26
27 #include <linux/errno.h>
28
29 /* Drivers may not strictly depend on the GPIO support, so let them link. */
30 static inline int of_get_named_gpio(const struct device_node *np,
31 const char *propname, int index)
32 {
33 return -ENOSYS;
34 }
35
36 #endif /* CONFIG_OF_GPIO */
37
38 #endif /* __LINUX_OF_GPIO_H */
39
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