diff options
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpiolib-acpi.c | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c index e431222edc2b..6bea176b066c 100644 --- a/drivers/gpio/gpiolib-acpi.c +++ b/drivers/gpio/gpiolib-acpi.c @@ -165,6 +165,23 @@ static void acpi_gpio_chip_dh(acpi_handle handle, void *data) /* The address of this function is used as a key. */ } +bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, + struct acpi_resource_gpio **agpio) +{ + struct acpi_resource_gpio *gpio; + + if (ares->type != ACPI_RESOURCE_TYPE_GPIO) + return false; + + gpio = &ares->data.gpio; + if (gpio->connection_type != ACPI_RESOURCE_GPIO_TYPE_INT) + return false; + + *agpio = gpio; + return true; +} +EXPORT_SYMBOL_GPL(acpi_gpio_get_irq_resource); + static acpi_status acpi_gpiochip_request_interrupt(struct acpi_resource *ares, void *context) { @@ -178,11 +195,7 @@ static acpi_status acpi_gpiochip_request_interrupt(struct acpi_resource *ares, unsigned long irqflags; int ret, pin, irq; - if (ares->type != ACPI_RESOURCE_TYPE_GPIO) - return AE_OK; - - agpio = &ares->data.gpio; - if (agpio->connection_type != ACPI_RESOURCE_GPIO_TYPE_INT) + if (!acpi_gpio_get_irq_resource(ares, &agpio)) return AE_OK; handle = ACPI_HANDLE(chip->parent); |