ACPI: Fan: Drop force_power_state acpi_device option
Alexey Starikovskiy [Mon, 22 Oct 2007 10:19:21 +0000 (14:19 +0400)]
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
drivers/acpi/fan.c
include/acpi/acpi_bus.h

index fdee82d..49d432d 100644 (file)
@@ -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;
index a6e149d..a5a5532 100644 (file)
@@ -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;
index 7b74b60..19c3ead 100644 (file)
@@ -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 */