LM84 does not support minimum temperature registers.
Only create the respective sysfs attributes for other chips.
Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
---
drivers/hwmon/adm1021.c | 32 +++++++++++++++++++++++++-------
1 file changed, 25 insertions(+), 7 deletions(-)
diff --git a/drivers/hwmon/adm1021.c b/drivers/hwmon/adm1021.c
index 7e76922..08f3762 100644
--- a/drivers/hwmon/adm1021.c
+++ b/drivers/hwmon/adm1021.c
@@ -284,15 +284,11 @@ static DEVICE_ATTR(low_power, S_IWUSR | S_IRUGO, show_low_power, set_low_power);
static struct attribute *adm1021_attributes[] = {
&sensor_dev_attr_temp1_max.dev_attr.attr,
- &sensor_dev_attr_temp1_min.dev_attr.attr,
&sensor_dev_attr_temp1_input.dev_attr.attr,
&sensor_dev_attr_temp2_max.dev_attr.attr,
- &sensor_dev_attr_temp2_min.dev_attr.attr,
&sensor_dev_attr_temp2_input.dev_attr.attr,
&sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
- &sensor_dev_attr_temp1_min_alarm.dev_attr.attr,
&sensor_dev_attr_temp2_max_alarm.dev_attr.attr,
- &sensor_dev_attr_temp2_min_alarm.dev_attr.attr,
&sensor_dev_attr_temp2_fault.dev_attr.attr,
&dev_attr_alarms.attr,
&dev_attr_low_power.attr,
@@ -303,6 +299,18 @@ static const struct attribute_group adm1021_group = {
.attrs = adm1021_attributes,
};
+static struct attribute *adm1021_min_attributes[] = {
+ &sensor_dev_attr_temp1_min.dev_attr.attr,
+ &sensor_dev_attr_temp2_min.dev_attr.attr,
+ &sensor_dev_attr_temp1_min_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp2_min_alarm.dev_attr.attr,
+ NULL
+};
+
+static const struct attribute_group adm1021_min_group = {
+ .attrs = adm1021_min_attributes,
+};
+
/* Return 0 if detection is successful, -ENODEV otherwise */
static int adm1021_detect(struct i2c_client *client,
struct i2c_board_info *info)
@@ -383,6 +391,12 @@ static int adm1021_probe(struct i2c_client *client,
if (err)
return err;
+ if (data->type != lm84) {
+ err = sysfs_create_group(&client->dev.kobj, &adm1021_min_group);
+ if (err)
+ goto error;
+ }
+
data->hwmon_dev = hwmon_device_register(&client->dev);
if (IS_ERR(data->hwmon_dev)) {
err = PTR_ERR(data->hwmon_dev);
@@ -392,6 +406,7 @@ static int adm1021_probe(struct i2c_client *client,
return 0;
error:
+ sysfs_remove_group(&client->dev.kobj, &adm1021_min_group);
sysfs_remove_group(&client->dev.kobj, &adm1021_group);
return err;
}
@@ -410,6 +425,7 @@ static int adm1021_remove(struct i2c_client *client)
struct adm1021_data *data = i2c_get_clientdata(client);
hwmon_device_unregister(data->hwmon_dev);
+ sysfs_remove_group(&client->dev.kobj, &adm1021_min_group);
sysfs_remove_group(&client->dev.kobj, &adm1021_group);
return 0;
@@ -435,9 +451,11 @@ static struct adm1021_data *adm1021_update_device(struct device *dev)
data->temp_max[i] = 1000 *
(s8) i2c_smbus_read_byte_data(
client, ADM1021_REG_TOS_R(i));
- data->temp_min[i] = 1000 *
- (s8) i2c_smbus_read_byte_data(
- client, ADM1021_REG_THYST_R(i));
+ if (data->type != lm84) {
+ data->temp_min[i] = 1000 *
+ (s8) i2c_smbus_read_byte_data(client,
+ ADM1021_REG_THYST_R(i));
+ }
}
data->alarms = i2c_smbus_read_byte_data(client,
ADM1021_REG_STATUS) & 0x7c;
--
1.7.9.7
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