diff options
Diffstat (limited to 'drivers/acpi/device_pm.c')
| -rw-r--r-- | drivers/acpi/device_pm.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c index 130b5f4a50a3..9dce1245689c 100644 --- a/drivers/acpi/device_pm.c +++ b/drivers/acpi/device_pm.c @@ -369,6 +369,28 @@ int acpi_device_fix_up_power(struct acpi_device *device) } EXPORT_SYMBOL_GPL(acpi_device_fix_up_power); +static int fix_up_power_if_applicable(struct acpi_device *adev, void *not_used) +{ + if (adev->status.present && adev->status.enabled) + acpi_device_fix_up_power(adev); + + return 0; +} + +/** + * acpi_device_fix_up_power_extended - Force device and its children into D0. + * @adev: Parent device object whose power state is to be fixed up. + * + * Call acpi_device_fix_up_power() for @adev and its children so long as they + * are reported as present and enabled. + */ +void acpi_device_fix_up_power_extended(struct acpi_device *adev) +{ + acpi_device_fix_up_power(adev); + acpi_dev_for_each_child(adev, fix_up_power_if_applicable, NULL); +} +EXPORT_SYMBOL_GPL(acpi_device_fix_up_power_extended); + int acpi_device_update_power(struct acpi_device *device, int *state_p) { int state; |