X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=drivers%2Facpi%2Ffan.c;h=a5a5532db268084307ae31d655a04af6b9913925;hb=f51e83916a0a022d3d0ea39ae2f877c703032923;hp=ec655c53949225080bd90c76143831994f40444e;hpb=6f8c480f998a619082f18407f8d7f4c29e94dc6e;p=linux-2.6-omap-h63xx.git

diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c
index ec655c53949..a5a5532db26 100644
--- a/drivers/acpi/fan.c
+++ b/drivers/acpi/fan.c
@@ -47,25 +47,23 @@ 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},
+	{"", 0},
+};
+MODULE_DEVICE_TABLE(acpi, fan_device_ids);
 
 static struct acpi_driver acpi_fan_driver = {
 	.name = "fan",
 	.class = ACPI_FAN_CLASS,
-	.ids = "PNP0C0B",
+	.ids = fan_device_ids,
 	.ops = {
 		.add = acpi_fan_add,
 		.remove = acpi_fan_remove,
-		.suspend = acpi_fan_suspend,
-		.resume = acpi_fan_resume,
 		},
 };
 
-struct acpi_fan {
-	struct acpi_device * device;
-};
-
 /* --------------------------------------------------------------------------
                               FS Interface (/proc)
    -------------------------------------------------------------------------- */
@@ -74,12 +72,12 @@ static struct proc_dir_entry *acpi_fan_dir;
 
 static int acpi_fan_read_state(struct seq_file *seq, void *offset)
 {
-	struct acpi_fan *fan = seq->private;
+	struct acpi_device *device = seq->private;
 	int state = 0;
 
 
-	if (fan) {
-		if (acpi_bus_get_power(fan->device->handle, &state))
+	if (device) {
+		if (acpi_bus_get_power(device->handle, &state))
 			seq_printf(seq, "status:                  ERROR\n");
 		else
 			seq_printf(seq, "status:                  %s\n",
@@ -99,11 +97,10 @@ acpi_fan_write_state(struct file *file, const char __user * buffer,
 {
 	int result = 0;
 	struct seq_file *m = file->private_data;
-	struct acpi_fan *fan = m->private;
+	struct acpi_device *device = m->private;
 	char state_string[12] = { '\0' };
 
-
-	if (!fan || (count > sizeof(state_string) - 1))
+	if (count > sizeof(state_string) - 1)
 		return -EINVAL;
 
 	if (copy_from_user(state_string, buffer, count))
@@ -111,7 +108,7 @@ acpi_fan_write_state(struct file *file, const char __user * buffer,
 
 	state_string[count] = '\0';
 
-	result = acpi_bus_set_power(fan->device->handle,
+	result = acpi_bus_set_power(device->handle,
 				    simple_strtoul(state_string, NULL, 0));
 	if (result)
 		return result;
@@ -152,7 +149,7 @@ static int acpi_fan_add_fs(struct acpi_device *device)
 		return -ENODEV;
 	else {
 		entry->proc_fops = &acpi_fan_state_ops;
-		entry->data = acpi_driver_data(device);
+		entry->data = device;
 		entry->owner = THIS_MODULE;
 	}
 
@@ -185,14 +182,8 @@ static int acpi_fan_add(struct acpi_device *device)
 	if (!device)
 		return -EINVAL;
 
-	fan = kzalloc(sizeof(struct acpi_fan), GFP_KERNEL);
-	if (!fan)
-		return -ENOMEM;
-
-	fan->device = device;
 	strcpy(acpi_device_name(device), "Fan");
 	strcpy(acpi_device_class(device), ACPI_FAN_CLASS);
-	acpi_driver_data(device) = fan;
 
 	result = acpi_bus_get_power(device->handle, &state);
 	if (result) {
@@ -200,10 +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;
@@ -221,53 +208,14 @@ static int acpi_fan_add(struct acpi_device *device)
 
 static int acpi_fan_remove(struct acpi_device *device, int type)
 {
-	struct acpi_fan *fan = NULL;
-
-
 	if (!device || !acpi_driver_data(device))
 		return -EINVAL;
 
-	fan = acpi_driver_data(device);
-
 	acpi_fan_remove_fs(device);
 
-	kfree(fan);
-
 	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;