acpi_power_transition
result = acpi_power_transition(device, target_state);
result = acpi_power_transition(device, ACPI_STATE_D0);
result = acpi_power_transition(device, state);
int acpi_power_transition(struct acpi_device *device, int state);
acpi_power_transition(adev, ACPI_STATE_D3_COLD);