1 files changed, 41 insertions, 43 deletions

diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index c855f4446b5f..5753d06b7860 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -162,7 +162,7 @@ struct acpi_thermal_flags {
 };
 
 struct acpi_thermal {
-	acpi_handle handle;
+	struct acpi_device * device;
 	acpi_bus_id name;
 	unsigned long temperature;
 	unsigned long last_temperature;
@@ -176,21 +176,21 @@ struct acpi_thermal {
 	struct timer_list timer;
 };
 
-static struct file_operations acpi_thermal_state_fops = {
+static const struct file_operations acpi_thermal_state_fops = {
 	.open = acpi_thermal_state_open_fs,
 	.read = seq_read,
 	.llseek = seq_lseek,
 	.release = single_release,
 };
 
-static struct file_operations acpi_thermal_temp_fops = {
+static const struct file_operations acpi_thermal_temp_fops = {
 	.open = acpi_thermal_temp_open_fs,
 	.read = seq_read,
 	.llseek = seq_lseek,
 	.release = single_release,
 };
 
-static struct file_operations acpi_thermal_trip_fops = {
+static const struct file_operations acpi_thermal_trip_fops = {
 	.open = acpi_thermal_trip_open_fs,
 	.read = seq_read,
 	.write = acpi_thermal_write_trip_points,
@@ -198,7 +198,7 @@ static struct file_operations acpi_thermal_trip_fops = {
 	.release = single_release,
 };
 
-static struct file_operations acpi_thermal_cooling_fops = {
+static const struct file_operations acpi_thermal_cooling_fops = {
 	.open = acpi_thermal_cooling_open_fs,
 	.read = seq_read,
 	.write = acpi_thermal_write_cooling_mode,
@@ -206,7 +206,7 @@ static struct file_operations acpi_thermal_cooling_fops = {
 	.release = single_release,
 };
 
-static struct file_operations acpi_thermal_polling_fops = {
+static const struct file_operations acpi_thermal_polling_fops = {
 	.open = acpi_thermal_polling_open_fs,
 	.read = seq_read,
 	.write = acpi_thermal_write_polling,
@@ -229,7 +229,7 @@ static int acpi_thermal_get_temperature(struct acpi_thermal *tz)
 	tz->last_temperature = tz->temperature;
 
 	status =
-	    acpi_evaluate_integer(tz->handle, "_TMP", NULL, &tz->temperature);
+	    acpi_evaluate_integer(tz->device->handle, "_TMP", NULL, &tz->temperature);
 	if (ACPI_FAILURE(status))
 		return -ENODEV;
 
@@ -248,7 +248,7 @@ static int acpi_thermal_get_polling_frequency(struct acpi_thermal *tz)
 		return -EINVAL;
 
 	status =
-	    acpi_evaluate_integer(tz->handle, "_TZP", NULL,
+	    acpi_evaluate_integer(tz->device->handle, "_TZP", NULL,
 				  &tz->polling_frequency);
 	if (ACPI_FAILURE(status))
 		return -ENODEV;
@@ -285,7 +285,7 @@ static int acpi_thermal_set_cooling_mode(struct acpi_thermal *tz, int mode)
 	if (!tz)
 		return -EINVAL;
 
-	status = acpi_get_handle(tz->handle, "_SCP", &handle);
+	status = acpi_get_handle(tz->device->handle, "_SCP", &handle);
 	if (ACPI_FAILURE(status)) {
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "_SCP not present\n"));
 		return -ENODEV;
@@ -316,7 +316,7 @@ static int acpi_thermal_get_trip_points(struct acpi_thermal *tz)
 
 	/* Critical Shutdown (required) */
 
-	status = acpi_evaluate_integer(tz->handle, "_CRT", NULL,
+	status = acpi_evaluate_integer(tz->device->handle, "_CRT", NULL,
 				       &tz->trips.critical.temperature);
 	if (ACPI_FAILURE(status)) {
 		tz->trips.critical.flags.valid = 0;
@@ -332,7 +332,7 @@ static int acpi_thermal_get_trip_points(struct acpi_thermal *tz)
 	/* Critical Sleep (optional) */
 
 	status =
-	    acpi_evaluate_integer(tz->handle, "_HOT", NULL,
+	    acpi_evaluate_integer(tz->device->handle, "_HOT", NULL,
 				  &tz->trips.hot.temperature);
 	if (ACPI_FAILURE(status)) {
 		tz->trips.hot.flags.valid = 0;
@@ -346,7 +346,7 @@ static int acpi_thermal_get_trip_points(struct acpi_thermal *tz)
 	/* Passive: Processors (optional) */
 
 	status =
-	    acpi_evaluate_integer(tz->handle, "_PSV", NULL,
+	    acpi_evaluate_integer(tz->device->handle, "_PSV", NULL,
 				  &tz->trips.passive.temperature);
 	if (ACPI_FAILURE(status)) {
 		tz->trips.passive.flags.valid = 0;
@@ -355,25 +355,25 @@ static int acpi_thermal_get_trip_points(struct acpi_thermal *tz)
 		tz->trips.passive.flags.valid = 1;
 
 		status =
-		    acpi_evaluate_integer(tz->handle, "_TC1", NULL,
+		    acpi_evaluate_integer(tz->device->handle, "_TC1", NULL,
 					  &tz->trips.passive.tc1);
 		if (ACPI_FAILURE(status))
 			tz->trips.passive.flags.valid = 0;
 
 		status =
-		    acpi_evaluate_integer(tz->handle, "_TC2", NULL,
+		    acpi_evaluate_integer(tz->device->handle, "_TC2", NULL,
 					  &tz->trips.passive.tc2);
 		if (ACPI_FAILURE(status))
 			tz->trips.passive.flags.valid = 0;
 
 		status =
-		    acpi_evaluate_integer(tz->handle, "_TSP", NULL,
+		    acpi_evaluate_integer(tz->device->handle, "_TSP", NULL,
 					  &tz->trips.passive.tsp);
 		if (ACPI_FAILURE(status))
 			tz->trips.passive.flags.valid = 0;
 
 		status =
-		    acpi_evaluate_reference(tz->handle, "_PSL", NULL,
+		    acpi_evaluate_reference(tz->device->handle, "_PSL", NULL,
 					    &tz->trips.passive.devices);
 		if (ACPI_FAILURE(status))
 			tz->trips.passive.flags.valid = 0;
@@ -393,14 +393,14 @@ static int acpi_thermal_get_trip_points(struct acpi_thermal *tz)
 		char name[5] = { '_', 'A', 'C', ('0' + i), '\0' };
 
 		status =
-		    acpi_evaluate_integer(tz->handle, name, NULL,
+		    acpi_evaluate_integer(tz->device->handle, name, NULL,
 					  &tz->trips.active[i].temperature);
 		if (ACPI_FAILURE(status))
 			break;
 
 		name[2] = 'L';
 		status =
-		    acpi_evaluate_reference(tz->handle, name, NULL,
+		    acpi_evaluate_reference(tz->device->handle, name, NULL,
 					    &tz->trips.active[i].devices);
 		if (ACPI_SUCCESS(status)) {
 			tz->trips.active[i].flags.valid = 1;
@@ -424,7 +424,7 @@ static int acpi_thermal_get_devices(struct acpi_thermal *tz)
 		return -EINVAL;
 
 	status =
-	    acpi_evaluate_reference(tz->handle, "_TZD", NULL, &tz->devices);
+	    acpi_evaluate_reference(tz->device->handle, "_TZD", NULL, &tz->devices);
 	if (ACPI_FAILURE(status))
 		return -ENODEV;
 
@@ -453,10 +453,6 @@ static int acpi_thermal_call_usermode(char *path)
 
 static int acpi_thermal_critical(struct acpi_thermal *tz)
 {
-	int result = 0;
-	struct acpi_device *device = NULL;
-
-
 	if (!tz || !tz->trips.critical.flags.valid)
 		return -EINVAL;
 
@@ -466,14 +462,10 @@ static int acpi_thermal_critical(struct acpi_thermal *tz)
 	} else if (tz->trips.critical.flags.enabled)
 		tz->trips.critical.flags.enabled = 0;
 
-	result = acpi_bus_get_device(tz->handle, &device);
-	if (result)
-		return result;
-
 	printk(KERN_EMERG
 	       "Critical temperature reached (%ld C), shutting down.\n",
 	       KELVIN_TO_CELSIUS(tz->temperature));
-	acpi_bus_generate_event(device, ACPI_THERMAL_NOTIFY_CRITICAL,
+	acpi_bus_generate_event(tz->device, ACPI_THERMAL_NOTIFY_CRITICAL,
 				tz->trips.critical.flags.enabled);
 
 	acpi_thermal_call_usermode(ACPI_THERMAL_PATH_POWEROFF);
@@ -483,10 +475,6 @@ static int acpi_thermal_critical(struct acpi_thermal *tz)
 
 static int acpi_thermal_hot(struct acpi_thermal *tz)
 {
-	int result = 0;
-	struct acpi_device *device = NULL;
-
-
 	if (!tz || !tz->trips.hot.flags.valid)
 		return -EINVAL;
 
@@ -496,11 +484,7 @@ static int acpi_thermal_hot(struct acpi_thermal *tz)
 	} else if (tz->trips.hot.flags.enabled)
 		tz->trips.hot.flags.enabled = 0;
 
-	result = acpi_bus_get_device(tz->handle, &device);
-	if (result)
-		return result;
-
-	acpi_bus_generate_event(device, ACPI_THERMAL_NOTIFY_HOT,
+	acpi_bus_generate_event(tz->device, ACPI_THERMAL_NOTIFY_HOT,
 				tz->trips.hot.flags.enabled);
 
 	/* TBD: Call user-mode "sleep(S4)" function */
@@ -1193,8 +1177,7 @@ static void acpi_thermal_notify(acpi_handle handle, u32 event, void *data)
 	if (!tz)
 		return;
 
-	if (acpi_bus_get_device(tz->handle, &device))
-		return;
+	device = tz->device;
 
 	switch (event) {
 	case ACPI_THERMAL_NOTIFY_TEMPERATURE:
@@ -1293,7 +1276,7 @@ static int acpi_thermal_add(struct acpi_device *device)
 		return -ENOMEM;
 	memset(tz, 0, sizeof(struct acpi_thermal));
 
-	tz->handle = device->handle;
+	tz->device = device;
 	strcpy(tz->name, device->pnp.bus_id);
 	strcpy(acpi_device_name(device), ACPI_THERMAL_DEVICE_NAME);
 	strcpy(acpi_device_class(device), ACPI_THERMAL_CLASS);
@@ -1311,7 +1294,7 @@ static int acpi_thermal_add(struct acpi_device *device)
 
 	acpi_thermal_check(tz);
 
-	status = acpi_install_notify_handler(tz->handle,
+	status = acpi_install_notify_handler(device->handle,
 					     ACPI_DEVICE_NOTIFY,
 					     acpi_thermal_notify, tz);
 	if (ACPI_FAILURE(status)) {
@@ -1352,7 +1335,7 @@ static int acpi_thermal_remove(struct acpi_device *device, int type)
 	/* deferred task may reinsert timer */
 	del_timer_sync(&(tz->timer));
 
-	status = acpi_remove_notify_handler(tz->handle,
+	status = acpi_remove_notify_handler(device->handle,
 					    ACPI_DEVICE_NOTIFY,
 					    acpi_thermal_notify);
 
@@ -1376,13 +1359,28 @@ static int acpi_thermal_remove(struct acpi_device *device, int type)
 static int acpi_thermal_resume(struct acpi_device *device, int state)
 {
 	struct acpi_thermal *tz = NULL;
+	int i;
 
 	if (!device || !acpi_driver_data(device))
 		return -EINVAL;
 
 	tz = (struct acpi_thermal *)acpi_driver_data(device);
 
-	acpi_thermal_check(tz);
+	acpi_thermal_get_temperature(tz);
+
+	for (i = 0; i < ACPI_THERMAL_MAX_ACTIVE; i++) {
+		if (tz->trips.active[i].flags.valid) {
+ 			tz->temperature = tz->trips.active[i].temperature;
+			tz->trips.active[i].flags.enabled = 0;
+
+			acpi_thermal_active(tz);
+
+			tz->state.active |= tz->trips.active[i].flags.enabled;
+			tz->state.active_index = i;
+		}
+	}
+
+ 	acpi_thermal_check(tz);
 
 	return AE_OK;
 }