diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2023-02-07 17:29:47 +0300 |
|---|---|---|
| committer | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2023-03-06 13:33:01 +0300 |
| commit | a99cc66807d6c854a7f65f962766c530c91be149 (patch) | |
| tree | ecd226cd915ec5fc426f00efd303abe1f575463b /include/linux/gpio | |
| parent | a8e59744e16b9ae18fab773a0fd3b23cdf21ad75 (diff) | |
| download | linux-a99cc66807d6c854a7f65f962766c530c91be149.tar.xz | |
gpiolib: split of_mm_gpio_chip out of linux/of_gpio.h
This is a rarely used feature that has nothing to do with the
client-side of_gpio.h.
Split it out with a separate header file and Kconfig option
so it can be removed on its own timeline aside from removing
the of_gpio consumer interfaces.
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Diffstat (limited to 'include/linux/gpio')
| -rw-r--r-- | include/linux/gpio/legacy-of-mm-gpiochip.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/include/linux/gpio/legacy-of-mm-gpiochip.h b/include/linux/gpio/legacy-of-mm-gpiochip.h new file mode 100644 index 000000000000..2e2bd3b19cc3 --- /dev/null +++ b/include/linux/gpio/legacy-of-mm-gpiochip.h @@ -0,0 +1,36 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * OF helpers for the old of_mm_gpio_chip, used on ppc32 and nios2, + * do not use in new code. + * + * Copyright (c) 2007-2008 MontaVista Software, Inc. + * + * Author: Anton Vorontsov <avorontsov@ru.mvista.com> + */ + +#ifndef __LINUX_GPIO_LEGACY_OF_MM_GPIO_CHIP_H +#define __LINUX_GPIO_LEGACY_OF_MM_GPIO_CHIP_H + +#include <linux/gpio/driver.h> +#include <linux/of.h> + +/* + * OF GPIO chip for memory mapped banks + */ +struct of_mm_gpio_chip { + struct gpio_chip gc; + void (*save_regs)(struct of_mm_gpio_chip *mm_gc); + void __iomem *regs; +}; + +static inline struct of_mm_gpio_chip *to_of_mm_gpio_chip(struct gpio_chip *gc) +{ + return container_of(gc, struct of_mm_gpio_chip, gc); +} + +extern int of_mm_gpiochip_add_data(struct device_node *np, + struct of_mm_gpio_chip *mm_gc, + void *data); +extern void of_mm_gpiochip_remove(struct of_mm_gpio_chip *mm_gc); + +#endif /* __LINUX_GPIO_LEGACY_OF_MM_GPIO_CHIP_H */ |