* Get device's current power state if it's unknown
* This means device power state isn't initialized or previous setting failed
*/
- if (device->power.state == ACPI_STATE_UNKNOWN)
- acpi_bus_get_power(device->handle, &device->power.state);
- if (state == device->power.state) {
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device is already at D%d\n",
- state));
- return_VALUE(0);
+ if (!device->flags.force_power_state) {
+ if (device->power.state == ACPI_STATE_UNKNOWN)
+ acpi_bus_get_power(device->handle, &device->power.state);
+ if (state == device->power.state) {
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device is already at D%d\n",
+ state));
+ return_VALUE(0);
+ }
}
if (!device->power.states[state].flags.valid) {
ACPI_DEBUG_PRINT((ACPI_DB_WARN, "Device does not support D%d\n",