diff options
Diffstat (limited to 'drivers/acpi/device_pm.c')
| -rw-r--r-- | drivers/acpi/device_pm.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c index 3ef075b71870..164d609d7c9e 100644 --- a/drivers/acpi/device_pm.c +++ b/drivers/acpi/device_pm.c @@ -330,6 +330,12 @@ int acpi_bus_init_power(struct acpi_device *device) result = acpi_dev_pm_explicit_set(device, state); if (result) return result; + } else if (state == ACPI_STATE_UNKNOWN) { + /* No power resources and missing _PSC? Try to force D0. */ + state = ACPI_STATE_D0; + result = acpi_dev_pm_explicit_set(device, state); + if (result) + return result; } device->power.state = state; return 0; |