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path: root/drivers/acpi/processor_thermal.c
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Diffstat (limited to 'drivers/acpi/processor_thermal.c')
-rw-r--r--drivers/acpi/processor_thermal.c54
1 files changed, 54 insertions, 0 deletions
diff --git a/drivers/acpi/processor_thermal.c b/drivers/acpi/processor_thermal.c
index d8b2dfcd59b5..db6ac540e924 100644
--- a/drivers/acpi/processor_thermal.c
+++ b/drivers/acpi/processor_thermal.c
@@ -266,3 +266,57 @@ const struct thermal_cooling_device_ops processor_cooling_ops = {
.get_cur_state = processor_get_cur_state,
.set_cur_state = processor_set_cur_state,
};
+
+int acpi_processor_thermal_init(struct acpi_processor *pr,
+ struct acpi_device *device)
+{
+ int result = 0;
+
+ pr->cdev = thermal_cooling_device_register("Processor", device,
+ &processor_cooling_ops);
+ if (IS_ERR(pr->cdev)) {
+ result = PTR_ERR(pr->cdev);
+ return result;
+ }
+
+ dev_dbg(&device->dev, "registered as cooling_device%d\n",
+ pr->cdev->id);
+
+ result = sysfs_create_link(&device->dev.kobj,
+ &pr->cdev->device.kobj,
+ "thermal_cooling");
+ if (result) {
+ dev_err(&device->dev,
+ "Failed to create sysfs link 'thermal_cooling'\n");
+ goto err_thermal_unregister;
+ }
+
+ result = sysfs_create_link(&pr->cdev->device.kobj,
+ &device->dev.kobj,
+ "device");
+ if (result) {
+ dev_err(&pr->cdev->device,
+ "Failed to create sysfs link 'device'\n");
+ goto err_remove_sysfs_thermal;
+ }
+
+ return 0;
+
+err_remove_sysfs_thermal:
+ sysfs_remove_link(&device->dev.kobj, "thermal_cooling");
+err_thermal_unregister:
+ thermal_cooling_device_unregister(pr->cdev);
+
+ return result;
+}
+
+void acpi_processor_thermal_exit(struct acpi_processor *pr,
+ struct acpi_device *device)
+{
+ if (pr->cdev) {
+ sysfs_remove_link(&device->dev.kobj, "thermal_cooling");
+ sysfs_remove_link(&pr->cdev->device.kobj, "device");
+ thermal_cooling_device_unregister(pr->cdev);
+ pr->cdev = NULL;
+ }
+}