diff options
Diffstat (limited to 'drivers/gpio/gpiolib-acpi.c')
| -rw-r--r-- | drivers/gpio/gpiolib-acpi.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c index 9b37a3692b3f..108331de440b 100644 --- a/drivers/gpio/gpiolib-acpi.c +++ b/drivers/gpio/gpiolib-acpi.c @@ -362,6 +362,37 @@ int acpi_dev_add_driver_gpios(struct acpi_device *adev, } EXPORT_SYMBOL_GPL(acpi_dev_add_driver_gpios); +static void devm_acpi_dev_release_driver_gpios(struct device *dev, void *res) +{ + acpi_dev_remove_driver_gpios(ACPI_COMPANION(dev)); +} + +int devm_acpi_dev_add_driver_gpios(struct device *dev, + const struct acpi_gpio_mapping *gpios) +{ + void *res; + int ret; + + res = devres_alloc(devm_acpi_dev_release_driver_gpios, 0, GFP_KERNEL); + if (!res) + return -ENOMEM; + + ret = acpi_dev_add_driver_gpios(ACPI_COMPANION(dev), gpios); + if (ret) { + devres_free(res); + return ret; + } + devres_add(dev, res); + return 0; +} +EXPORT_SYMBOL_GPL(devm_acpi_dev_add_driver_gpios); + +void devm_acpi_dev_remove_driver_gpios(struct device *dev) +{ + WARN_ON(devres_release(dev, devm_acpi_dev_release_driver_gpios, NULL, NULL)); +} +EXPORT_SYMBOL_GPL(devm_acpi_dev_remove_driver_gpios); + static bool acpi_get_driver_gpio_data(struct acpi_device *adev, const char *name, int index, struct acpi_reference_args *args) |