1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3 * OF helpers for the old of_mm_gpio_chip, used on ppc32 and nios2,
4 * do not use in new code.
5 *
6 * Copyright (c) 2007-2008 MontaVista Software, Inc.
7 *
8 * Author: Anton Vorontsov <avorontsov@ru.mvista.com>
9 */
10
11 #ifndef __LINUX_GPIO_LEGACY_OF_MM_GPIO_CHIP_H
12 #define __LINUX_GPIO_LEGACY_OF_MM_GPIO_CHIP_H
13
14 #include <linux/gpio/driver.h>
15 #include <linux/of.h>
16
17 /*
18 * OF GPIO chip for memory mapped banks
19 */
20 struct of_mm_gpio_chip {
21 struct gpio_chip gc;
22 void (*save_regs)(struct of_mm_gpio_chip *mm_gc);
23 void __iomem *regs;
24 };
25
26 static inline struct of_mm_gpio_chip *to_of_mm_gpio_chip(struct gpio_chip *gc)
27 {
28 return container_of(gc, struct of_mm_gpio_chip, gc);
29 }
30
31 extern int of_mm_gpiochip_add_data(struct device_node *np,
32 struct of_mm_gpio_chip *mm_gc,
33 void *data);
34 extern void of_mm_gpiochip_remove(struct of_mm_gpio_chip *mm_gc);
35
36 #endif /* __LINUX_GPIO_LEGACY_OF_MM_GPIO_CHIP_H */
37
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