ACPI: Fan: Drop force_power_state acpi_device option

force_power_state was used as a workaround for invalid cached
power state of the device. We do not cache power state, so no need for
workaround.
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>

drivers/acpi/bus.c

@@ -201,7 +201,7 @@ int acpi_bus_set_power(acpi_handle handle, int state)
 	 * Get device's current power state
 	 */
 	acpi_bus_get_power(device->handle, &device->power.state);
-	if ((state == device->power.state) && !device->flags.force_power_state) {
+	if (state == device->power.state) {
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device is already at D%d\n",
 				  state));
 		return 0;

drivers/acpi/fan.c

@@ -47,8 +47,6 @@ MODULE_LICENSE("GPL");
 
 static int acpi_fan_add(struct acpi_device *device);
 static int acpi_fan_remove(struct acpi_device *device, int type);
-static int acpi_fan_suspend(struct acpi_device *device, pm_message_t state);
-static int acpi_fan_resume(struct acpi_device *device);
 
 static const struct acpi_device_id fan_device_ids[] = {
 	{"PNP0C0B", 0},
@@ -63,8 +61,6 @@ static struct acpi_driver acpi_fan_driver = {
 	.ops = {
 		.add = acpi_fan_add,
 		.remove = acpi_fan_remove,
-		.suspend = acpi_fan_suspend,
-		.resume = acpi_fan_resume,
 		},
 };
 
@@ -195,10 +191,6 @@ static int acpi_fan_add(struct acpi_device *device)
 		goto end;
 	}
 
-	device->flags.force_power_state = 1;
-	acpi_bus_set_power(device->handle, state);
-	device->flags.force_power_state = 0;
-
 	result = acpi_fan_add_fs(device);
 	if (result)
 		goto end;
@@ -224,38 +216,6 @@ static int acpi_fan_remove(struct acpi_device *device, int type)
 	return 0;
 }
 
-static int acpi_fan_suspend(struct acpi_device *device, pm_message_t state)
-{
-	if (!device)
-		return -EINVAL;
-
-	acpi_bus_set_power(device->handle, ACPI_STATE_D0);
-
-	return AE_OK;
-}
-
-static int acpi_fan_resume(struct acpi_device *device)
-{
-	int result = 0;
-	int power_state = 0;
-
-	if (!device)
-		return -EINVAL;
-
-	result = acpi_bus_get_power(device->handle, &power_state);
-	if (result) {
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
-				  "Error reading fan power state\n"));
-		return result;
-	}
-
-	device->flags.force_power_state = 1;
-	acpi_bus_set_power(device->handle, power_state);
-	device->flags.force_power_state = 0;
-
-	return result;
-}
-
 static int __init acpi_fan_init(void)
 {
 	int result = 0;

include/acpi/acpi_bus.h

@@ -168,8 +168,7 @@ struct acpi_device_flags {
 	u32 power_manageable:1;
 	u32 performance_manageable:1;
 	u32 wake_capable:1;	/* Wakeup(_PRW) supported? */
-	u32 force_power_state:1;
-	u32 reserved:19;
+	u32 reserved:20;
 };
 
 /* File System */