forked from mirrors/linux
eed5a3bfaf
GPIO library for OF is the only user for enum of_gpio_flags. Move it there. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Rob Herring <robh@kernel.org> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
59 lines
1.4 KiB
C
59 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* OF helpers for the GPIO API
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*
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* Copyright (c) 2007-2008 MontaVista Software, Inc.
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*
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* Author: Anton Vorontsov <avorontsov@ru.mvista.com>
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*/
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#ifndef __LINUX_OF_GPIO_H
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#define __LINUX_OF_GPIO_H
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#include <linux/compiler.h>
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#include <linux/gpio/driver.h>
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#include <linux/gpio.h> /* FIXME: Shouldn't be here */
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#include <linux/of.h>
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struct device_node;
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#ifdef CONFIG_OF_GPIO
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#include <linux/container_of.h>
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/*
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* OF GPIO chip for memory mapped banks
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*/
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struct of_mm_gpio_chip {
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struct gpio_chip gc;
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void (*save_regs)(struct of_mm_gpio_chip *mm_gc);
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void __iomem *regs;
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};
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static inline struct of_mm_gpio_chip *to_of_mm_gpio_chip(struct gpio_chip *gc)
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{
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return container_of(gc, struct of_mm_gpio_chip, gc);
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}
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extern int of_get_named_gpio(const struct device_node *np,
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const char *list_name, int index);
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extern int of_mm_gpiochip_add_data(struct device_node *np,
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struct of_mm_gpio_chip *mm_gc,
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void *data);
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extern void of_mm_gpiochip_remove(struct of_mm_gpio_chip *mm_gc);
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#else /* CONFIG_OF_GPIO */
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#include <linux/errno.h>
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/* Drivers may not strictly depend on the GPIO support, so let them link. */
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static inline int of_get_named_gpio(const struct device_node *np,
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const char *propname, int index)
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{
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return -ENOSYS;
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}
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#endif /* CONFIG_OF_GPIO */
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#endif /* __LINUX_OF_GPIO_H */
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