diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/hwmon/emc1403.c | 73 |
1 files changed, 26 insertions, 47 deletions
diff --git a/drivers/hwmon/emc1403.c b/drivers/hwmon/emc1403.c index 142e1cb8dea7..dc2a917a87bb 100644 --- a/drivers/hwmon/emc1403.c +++ b/drivers/hwmon/emc1403.c @@ -40,7 +40,7 @@ #define THERMAL_REVISION_REG 0xff struct thermal_data { - struct device *hwmon_dev; + struct i2c_client *client; struct mutex mutex; /* * Cache the hyst value so we don't keep re-reading it. In theory @@ -53,10 +53,11 @@ struct thermal_data { static ssize_t show_temp(struct device *dev, struct device_attribute *attr, char *buf) { - struct i2c_client *client = to_i2c_client(dev); struct sensor_device_attribute *sda = to_sensor_dev_attr(attr); - int retval = i2c_smbus_read_byte_data(client, sda->index); + struct thermal_data *data = dev_get_drvdata(dev); + int retval; + retval = i2c_smbus_read_byte_data(data->client, sda->index); if (retval < 0) return retval; return sprintf(buf, "%d000\n", retval); @@ -65,27 +66,27 @@ static ssize_t show_temp(struct device *dev, static ssize_t show_bit(struct device *dev, struct device_attribute *attr, char *buf) { - struct i2c_client *client = to_i2c_client(dev); struct sensor_device_attribute_2 *sda = to_sensor_dev_attr_2(attr); - int retval = i2c_smbus_read_byte_data(client, sda->nr); + struct thermal_data *data = dev_get_drvdata(dev); + int retval; + retval = i2c_smbus_read_byte_data(data->client, sda->nr); if (retval < 0) return retval; - retval &= sda->index; - return sprintf(buf, "%d\n", retval ? 1 : 0); + return sprintf(buf, "%d\n", !!(retval & sda->index)); } static ssize_t store_temp(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct sensor_device_attribute *sda = to_sensor_dev_attr(attr); - struct i2c_client *client = to_i2c_client(dev); + struct thermal_data *data = dev_get_drvdata(dev); unsigned long val; int retval; if (kstrtoul(buf, 10, &val)) return -EINVAL; - retval = i2c_smbus_write_byte_data(client, sda->index, + retval = i2c_smbus_write_byte_data(data->client, sda->index, DIV_ROUND_CLOSEST(val, 1000)); if (retval < 0) return retval; @@ -95,9 +96,9 @@ static ssize_t store_temp(struct device *dev, static ssize_t store_bit(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct thermal_data *data = i2c_get_clientdata(client); struct sensor_device_attribute_2 *sda = to_sensor_dev_attr_2(attr); + struct thermal_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long val; int retval; @@ -124,9 +125,9 @@ fail: static ssize_t show_hyst(struct device *dev, struct device_attribute *attr, char *buf) { - struct i2c_client *client = to_i2c_client(dev); - struct thermal_data *data = i2c_get_clientdata(client); struct sensor_device_attribute *sda = to_sensor_dev_attr(attr); + struct thermal_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int retval; int hyst; @@ -147,9 +148,9 @@ static ssize_t show_hyst(struct device *dev, static ssize_t store_hyst(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct thermal_data *data = i2c_get_clientdata(client); struct sensor_device_attribute *sda = to_sensor_dev_attr(attr); + struct thermal_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int retval; int hyst; unsigned long val; @@ -235,7 +236,7 @@ static SENSOR_DEVICE_ATTR(temp3_crit_hyst, S_IRUGO | S_IWUSR, static SENSOR_DEVICE_ATTR_2(power_state, S_IRUGO | S_IWUSR, show_bit, store_bit, 0x03, 0x40); -static struct attribute *mid_att_thermal[] = { +static struct attribute *emc1403_attrs[] = { &sensor_dev_attr_temp1_min.dev_attr.attr, &sensor_dev_attr_temp1_max.dev_attr.attr, &sensor_dev_attr_temp1_crit.dev_attr.attr, @@ -263,10 +264,7 @@ static struct attribute *mid_att_thermal[] = { &sensor_dev_attr_power_state.dev_attr.attr, NULL }; - -static const struct attribute_group m_thermal_gr = { - .attrs = mid_att_thermal -}; +ATTRIBUTE_GROUPS(emc1403); static int emc1403_detect(struct i2c_client *client, struct i2c_board_info *info) @@ -304,43 +302,25 @@ static int emc1403_detect(struct i2c_client *client, static int emc1403_probe(struct i2c_client *client, const struct i2c_device_id *id) { - int res; struct thermal_data *data; + struct device *hwmon_dev; data = devm_kzalloc(&client->dev, sizeof(struct thermal_data), GFP_KERNEL); if (data == NULL) return -ENOMEM; - i2c_set_clientdata(client, data); + data->client = client; mutex_init(&data->mutex); data->hyst_valid = jiffies - 1; /* Expired */ - res = sysfs_create_group(&client->dev.kobj, &m_thermal_gr); - if (res) { - dev_warn(&client->dev, "create group failed\n"); - return res; - } - data->hwmon_dev = hwmon_device_register(&client->dev); - if (IS_ERR(data->hwmon_dev)) { - res = PTR_ERR(data->hwmon_dev); - dev_warn(&client->dev, "register hwmon dev failed\n"); - goto thermal_error; - } - dev_info(&client->dev, "EMC1403 Thermal chip found\n"); - return 0; - -thermal_error: - sysfs_remove_group(&client->dev.kobj, &m_thermal_gr); - return res; -} + hwmon_dev = hwmon_device_register_with_groups(&client->dev, + client->name, data, + emc1403_groups); + if (IS_ERR(hwmon_dev)) + return PTR_ERR(hwmon_dev); -static int emc1403_remove(struct i2c_client *client) -{ - struct thermal_data *data = i2c_get_clientdata(client); - - hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, &m_thermal_gr); + dev_info(&client->dev, "EMC1403 Thermal chip found\n"); return 0; } @@ -362,7 +342,6 @@ static struct i2c_driver sensor_emc1403 = { }, .detect = emc1403_detect, .probe = emc1403_probe, - .remove = emc1403_remove, .id_table = emc1403_idtable, .address_list = emc1403_address_list, }; |