@@ -757,6 +757,7 @@ __hwmon_device_register(struct device *dev, const char *name, void *drvdata,
struct hwmon_device *hwdev;
const char *label;
struct device *hdev;
+ struct device *tdev = dev;
int i, err, id;
/* Complain about invalid characters in hwmon name attribute */
@@ -826,7 +827,9 @@ __hwmon_device_register(struct device *dev, const char *name, void *drvdata,
hwdev->name = name;
hdev->class = &hwmon_class;
hdev->parent = dev;
- hdev->of_node = dev ? dev->of_node : NULL;
+ while (tdev && !tdev->of_node)
+ tdev = tdev->parent;
+ hdev->of_node = tdev ? tdev->of_node : NULL;
hwdev->chip = chip;
dev_set_drvdata(hdev, drvdata);
dev_set_name(hdev, HWMON_ID_FORMAT, id);
@@ -838,7 +841,7 @@ __hwmon_device_register(struct device *dev, const char *name, void *drvdata,
INIT_LIST_HEAD(&hwdev->tzdata);
- if (dev && dev->of_node && chip && chip->ops->read &&
+ if (hdev->of_node && chip && chip->ops->read &&
chip->info[0]->type == hwmon_chip &&
(chip->info[0]->config[0] & HWMON_C_REGISTER_TZ)) {
err = hwmon_thermal_register_sensors(hdev);
It is not sufficient to check of_node in current device. In some cases, this would cause the sensor registration to fail. This patch looks for device's ancestors to find a valid of_node if any. Signed-off-by: Phinex Hung <phinex@realtek.com> --- v2: assign of_node from its ancestor to support sensor registration --- drivers/hwmon/hwmon.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)