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git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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b7452d670f
There is no need for the generic parts of GPIOLIB to be aware of implementation details of ACPI-bases lookups. Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
64 lines
1.8 KiB
C
64 lines
1.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* ACPI helpers for GPIO API
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*
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* Copyright (C) 2012,2019 Intel Corporation
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*/
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#ifndef GPIOLIB_ACPI_H
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#define GPIOLIB_ACPI_H
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struct acpi_device;
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#ifdef CONFIG_ACPI
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void acpi_gpiochip_add(struct gpio_chip *chip);
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void acpi_gpiochip_remove(struct gpio_chip *chip);
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void acpi_gpio_dev_init(struct gpio_chip *gc, struct gpio_device *gdev);
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void acpi_gpiochip_request_interrupts(struct gpio_chip *chip);
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void acpi_gpiochip_free_interrupts(struct gpio_chip *chip);
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struct gpio_desc *acpi_find_gpio(struct fwnode_handle *fwnode,
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const char *con_id,
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unsigned int idx,
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enum gpiod_flags *dflags,
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unsigned long *lookupflags);
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struct gpio_desc *acpi_node_get_gpiod(struct fwnode_handle *fwnode,
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const char *propname, int index,
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unsigned long *lflags,
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enum gpiod_flags *dflags);
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int acpi_gpio_count(struct device *dev, const char *con_id);
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#else
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static inline void acpi_gpiochip_add(struct gpio_chip *chip) { }
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static inline void acpi_gpiochip_remove(struct gpio_chip *chip) { }
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static inline void acpi_gpio_dev_init(struct gpio_chip *gc, struct gpio_device *gdev) { }
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static inline void
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acpi_gpiochip_request_interrupts(struct gpio_chip *chip) { }
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static inline void
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acpi_gpiochip_free_interrupts(struct gpio_chip *chip) { }
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static inline struct gpio_desc *
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acpi_find_gpio(struct fwnode_handle *fwnode, const char *con_id,
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unsigned int idx, enum gpiod_flags *dflags,
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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 struct gpio_desc *
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acpi_node_get_gpiod(struct fwnode_handle *fwnode, const char *propname,
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int index, unsigned long *lflags, enum gpiod_flags *dflags)
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{
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return ERR_PTR(-ENXIO);
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}
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static inline int acpi_gpio_count(struct device *dev, const char *con_id)
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{
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return -ENODEV;
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}
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#endif
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#endif /* GPIOLIB_ACPI_H */
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