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. */ of_get_named_gpio(const struct device_node * np,const char * propname,int index)30static 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