diff options
Diffstat (limited to 'drivers/gpio/gpiolib-acpi.c')
| -rw-r--r-- | drivers/gpio/gpiolib-acpi.c | 23 |
1 files changed, 16 insertions, 7 deletions
diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c index ae0ffdce8bd..716ee984311 100644 --- a/drivers/gpio/gpiolib-acpi.c +++ b/drivers/gpio/gpiolib-acpi.c @@ -12,11 +12,13 @@ #include <linux/errno.h> #include <linux/gpio/consumer.h> +#include <linux/gpio/driver.h> #include <linux/export.h> -#include <linux/acpi_gpio.h> #include <linux/acpi.h> #include <linux/interrupt.h> +#include "gpiolib.h" + struct acpi_gpio_evt_pin { struct list_head node; acpi_handle *evt_handle; @@ -94,7 +96,7 @@ static void acpi_gpio_evt_dh(acpi_handle handle, void *data) * gpio pins have acpi event methods and assigns interrupt handlers that calls * the acpi event methods for those pins. */ -void acpi_gpiochip_request_interrupts(struct gpio_chip *chip) +static void acpi_gpiochip_request_interrupts(struct gpio_chip *chip) { struct acpi_buffer buf = {ACPI_ALLOCATE_BUFFER, NULL}; struct acpi_resource *res; @@ -192,7 +194,6 @@ void acpi_gpiochip_request_interrupts(struct gpio_chip *chip) irq); } } -EXPORT_SYMBOL(acpi_gpiochip_request_interrupts); /** * acpi_gpiochip_free_interrupts() - Free GPIO _EVT ACPI event interrupts. @@ -203,7 +204,7 @@ EXPORT_SYMBOL(acpi_gpiochip_request_interrupts); * The remaining ACPI event interrupts associated with the chip are freed * automatically. */ -void acpi_gpiochip_free_interrupts(struct gpio_chip *chip) +static void acpi_gpiochip_free_interrupts(struct gpio_chip *chip) { acpi_handle handle; acpi_status status; @@ -230,7 +231,6 @@ void acpi_gpiochip_free_interrupts(struct gpio_chip *chip) acpi_detach_data(handle, acpi_gpio_evt_dh); kfree(evt_pins); } -EXPORT_SYMBOL(acpi_gpiochip_free_interrupts); struct acpi_gpio_lookup { struct acpi_gpio_info info; @@ -307,6 +307,15 @@ struct gpio_desc *acpi_get_gpiod_by_index(struct device *dev, int index, if (lookup.desc && info) *info = lookup.info; - return lookup.desc ? lookup.desc : ERR_PTR(-ENODEV); + return lookup.desc ? lookup.desc : ERR_PTR(-ENOENT); +} + +void acpi_gpiochip_add(struct gpio_chip *chip) +{ + acpi_gpiochip_request_interrupts(chip); +} + +void acpi_gpiochip_remove(struct gpio_chip *chip) +{ + acpi_gpiochip_free_interrupts(chip); } -EXPORT_SYMBOL_GPL(acpi_get_gpiod_by_index); |