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70d0fc4288
All new drivers should use fwnode and / or parent to provide the necessary information to the GPIO library. Cc: Thierry Reding <treding@nvidia.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
44 lines
1.1 KiB
C
44 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef GPIOLIB_OF_H
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#define GPIOLIB_OF_H
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#include <linux/err.h>
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#include <linux/errno.h>
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#include <linux/types.h>
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#include <linux/notifier.h>
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struct device;
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struct gpio_chip;
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struct gpio_desc;
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struct gpio_device;
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#ifdef CONFIG_OF_GPIO
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struct gpio_desc *of_find_gpio(struct device_node *np,
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const char *con_id,
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unsigned int idx,
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unsigned long *lookupflags);
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int of_gpiochip_add(struct gpio_chip *gc);
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void of_gpiochip_remove(struct gpio_chip *gc);
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int of_gpio_get_count(struct device *dev, const char *con_id);
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#else
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static inline struct gpio_desc *of_find_gpio(struct device_node *np,
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const char *con_id,
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unsigned int idx,
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unsigned long *lookupflags)
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{
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return ERR_PTR(-ENOENT);
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}
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static inline int of_gpiochip_add(struct gpio_chip *gc) { return 0; }
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static inline void of_gpiochip_remove(struct gpio_chip *gc) { }
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static inline int of_gpio_get_count(struct device *dev, const char *con_id)
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{
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return 0;
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}
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#endif /* CONFIG_OF_GPIO */
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extern struct notifier_block gpio_of_notifier;
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#endif /* GPIOLIB_OF_H */
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