diff options
Diffstat (limited to 'drivers/acpi/scan.c')
| -rw-r--r-- | drivers/acpi/scan.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 5b54c80b9d32..dce2c291b982 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -608,6 +608,7 @@ struct acpi_device *acpi_bus_get_acpi_device(acpi_handle handle) { return handle_to_device(handle, get_acpi_device); } +EXPORT_SYMBOL_GPL(acpi_bus_get_acpi_device); static struct acpi_device_bus_id *acpi_device_bus_id_match(const char *dev_id) { @@ -2559,6 +2560,12 @@ int __init acpi_scan_init(void) } } + /* + * Make sure that power management resources are not blocked by ACPI + * device objects with no users. + */ + bus_for_each_dev(&acpi_bus_type, NULL, NULL, acpi_dev_turn_off_if_unused); + acpi_turn_off_unused_power_resources(); acpi_scan_initialized = true; |