projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 77cb907a AS |
1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | /* | |
| 3 | * ACPI helpers for GPIO API | |
| 4 | * | |
| 5 | * Copyright (C) 2012,2019 Intel Corporation | |
| 6 | */ | |
| 7 | ||
| 8 | #ifndef GPIOLIB_ACPI_H | |
| 9 | #define GPIOLIB_ACPI_H | |
| 10 | ||
| 08a149c4 | 11 | #include <linux/err.h> |
| 08a149c4 AS |
12 | #include <linux/types.h> |
| 13 | ||
| 14 | #include <linux/gpio/consumer.h> | |
| 15 | ||
| 08a149c4 AS |
16 | struct device; |
| 17 | struct fwnode_handle; | |
| 18 | ||
| 19 | struct gpio_chip; | |
| 20 | struct gpio_desc; | |
| 21 | struct gpio_device; | |
| 77cb907a | 22 | |
| 77cb907a AS |
23 | #ifdef CONFIG_ACPI |
| 24 | void acpi_gpiochip_add(struct gpio_chip *chip); | |
| 25 | void acpi_gpiochip_remove(struct gpio_chip *chip); | |
| 26 | ||
| 27 | void acpi_gpiochip_request_interrupts(struct gpio_chip *chip); | |
| 28 | void acpi_gpiochip_free_interrupts(struct gpio_chip *chip); | |
| 29 | ||
| 2b6bce80 | 30 | struct gpio_desc *acpi_find_gpio(struct fwnode_handle *fwnode, |
| 77cb907a AS |
31 | const char *con_id, |
| 32 | unsigned int idx, | |
| 33 | enum gpiod_flags *dflags, | |
| 34 | unsigned long *lookupflags); | |
| 77cb907a AS |
35 | |
| 36 | int acpi_gpio_count(struct device *dev, const char *con_id); | |
| 77cb907a AS |
37 | #else |
| 38 | static inline void acpi_gpiochip_add(struct gpio_chip *chip) { } | |
| 39 | static inline void acpi_gpiochip_remove(struct gpio_chip *chip) { } | |
| 40 | ||
| 41 | static inline void | |
| 42 | acpi_gpiochip_request_interrupts(struct gpio_chip *chip) { } | |
| 43 | ||
| 44 | static inline void | |
| 45 | acpi_gpiochip_free_interrupts(struct gpio_chip *chip) { } | |
| 46 | ||
| 77cb907a | 47 | static inline struct gpio_desc * |
| 2b6bce80 | 48 | acpi_find_gpio(struct fwnode_handle *fwnode, const char *con_id, |
| 77cb907a AS |
49 | unsigned int idx, enum gpiod_flags *dflags, |
| 50 | unsigned long *lookupflags) | |
| 51 | { | |
| 52 | return ERR_PTR(-ENOENT); | |
| 53 | } | |
| 77cb907a AS |
54 | static inline int acpi_gpio_count(struct device *dev, const char *con_id) |
| 55 | { | |
| 56 | return -ENODEV; | |
| 57 | } | |
| 77cb907a AS |
58 | #endif |
| 59 | ||
| 60 | #endif /* GPIOLIB_ACPI_H */ |