+static ssize_t radeon_hwmon_show_temp(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct drm_device *ddev = pci_get_drvdata(to_pci_dev(dev));
+ struct radeon_device *rdev = ddev->dev_private;
+ u32 temp;
+
+ switch (rdev->pm.int_thermal_type) {
+ case THERMAL_TYPE_RV6XX:
+ temp = rv6xx_get_temp(rdev);
+ break;
+ case THERMAL_TYPE_RV770:
+ temp = rv770_get_temp(rdev);
+ break;
+ case THERMAL_TYPE_EVERGREEN:
+ temp = evergreen_get_temp(rdev);
+ break;
+ default:
+ temp = 0;
+ break;
+ }
+
+ return snprintf(buf, PAGE_SIZE, "%d\n", temp);
+}
+
+static ssize_t radeon_hwmon_show_name(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ return sprintf(buf, "radeon\n");
+}
+
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, radeon_hwmon_show_temp, NULL, 0);
+static SENSOR_DEVICE_ATTR(name, S_IRUGO, radeon_hwmon_show_name, NULL, 0);
+
+static struct attribute *hwmon_attributes[] = {
+ &sensor_dev_attr_temp1_input.dev_attr.attr,
+ &sensor_dev_attr_name.dev_attr.attr,
+ NULL
+};
+
+static const struct attribute_group hwmon_attrgroup = {
+ .attrs = hwmon_attributes,
+};
+
+static void radeon_hwmon_init(struct radeon_device *rdev)
+{
+ int err;
+
+ rdev->pm.int_hwmon_dev = NULL;
+
+ switch (rdev->pm.int_thermal_type) {
+ case THERMAL_TYPE_RV6XX:
+ case THERMAL_TYPE_RV770:
+ case THERMAL_TYPE_EVERGREEN:
+ rdev->pm.int_hwmon_dev = hwmon_device_register(rdev->dev);
+ dev_set_drvdata(rdev->pm.int_hwmon_dev, rdev->ddev);
+ err = sysfs_create_group(&rdev->pm.int_hwmon_dev->kobj,
+ &hwmon_attrgroup);
+ if (err)
+ DRM_ERROR("Unable to create hwmon sysfs file: %d\n", err);
+ break;
+ default:
+ break;
+ }
+}
+
+static void radeon_hwmon_fini(struct radeon_device *rdev)
+{
+ if (rdev->pm.int_hwmon_dev) {
+ sysfs_remove_group(&rdev->pm.int_hwmon_dev->kobj, &hwmon_attrgroup);
+ hwmon_device_unregister(rdev->pm.int_hwmon_dev);
+ }
+}
+