int result = 0;
bool cut_power = false;
- if (!device || (state < ACPI_STATE_D0) || (state > ACPI_STATE_D3_COLD))
+ if (!device || !device->flags.power_manageable
+ || (state < ACPI_STATE_D0) || (state > ACPI_STATE_D3_COLD))
return -EINVAL;
/* Make sure this is a valid target state */
if (state == device->power.state) {
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device is already at %s\n",
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device [%s] already in %s\n",
+ device->pnp.bus_id,
acpi_power_state_string(state)));
return 0;
}
if (!device->power.states[state].flags.valid) {
- printk(KERN_WARNING PREFIX "Device does not support %s\n",
- acpi_power_state_string(state));
+ dev_warn(&device->dev, "Power state %s not supported\n",
+ acpi_power_state_string(state));
return -ENODEV;
}
if (device->parent && (state < device->parent->power.state)) {
- printk(KERN_WARNING PREFIX
- "Cannot set device to a higher-powered"
- " state than parent\n");
+ dev_warn(&device->dev,
+ "Cannot transition to power state %s for parent in %s\n",
+ acpi_power_state_string(state),
+ acpi_power_state_string(device->parent->power.state));
return -ENODEV;
}
if (state < device->power.state && state != ACPI_STATE_D0
&& device->power.state >= ACPI_STATE_D3_HOT) {
- printk(KERN_WARNING PREFIX
- "Cannot transition to non-D0 state from D3\n");
+ dev_warn(&device->dev,
+ "Cannot transition to non-D0 state from D3\n");
return -ENODEV;
}
end:
if (result) {
- printk(KERN_WARNING PREFIX
- "Device [%s] failed to transition to %s\n",
- device->pnp.bus_id,
- acpi_power_state_string(state));
+ dev_warn(&device->dev, "Failed to change power state to %s\n",
+ acpi_power_state_string(state));
} else {
device->power.state = state;
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
if (result)
return result;
- if (!device->flags.power_manageable) {
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Device [%s] is not power manageable\n",
- dev_name(&device->dev)));
- return -ENODEV;
- }
-
return acpi_device_set_power(device, state);
}
EXPORT_SYMBOL(acpi_bus_set_power);