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path: root/drivers/hwmon/lm90.c
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Diffstat (limited to 'drivers/hwmon/lm90.c')
-rw-r--r--drivers/hwmon/lm90.c111
1 files changed, 48 insertions, 63 deletions
diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c
index 701e952ae523..c9ff08dbe10c 100644
--- a/drivers/hwmon/lm90.c
+++ b/drivers/hwmon/lm90.c
@@ -365,7 +365,9 @@ enum lm90_temp11_reg_index {
*/
struct lm90_data {
+ struct i2c_client *client;
struct device *hwmon_dev;
+ const struct attribute_group *groups[6];
struct mutex update_lock;
struct regulator *regulator;
char valid; /* zero until following fields are valid */
@@ -513,8 +515,8 @@ static void lm90_set_convrate(struct i2c_client *client, struct lm90_data *data,
static struct lm90_data *lm90_update_device(struct device *dev)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct lm90_data *data = i2c_get_clientdata(client);
+ struct lm90_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
unsigned long next_update;
mutex_lock(&data->update_lock);
@@ -793,8 +795,8 @@ static ssize_t set_temp8(struct device *dev, struct device_attribute *devattr,
};
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct i2c_client *client = to_i2c_client(dev);
- struct lm90_data *data = i2c_get_clientdata(client);
+ struct lm90_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
int nr = attr->index;
long val;
int err;
@@ -860,8 +862,8 @@ static ssize_t set_temp11(struct device *dev, struct device_attribute *devattr,
};
struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
- struct i2c_client *client = to_i2c_client(dev);
- struct lm90_data *data = i2c_get_clientdata(client);
+ struct lm90_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
int nr = attr->nr;
int index = attr->index;
long val;
@@ -922,8 +924,8 @@ static ssize_t show_temphyst(struct device *dev,
static ssize_t set_temphyst(struct device *dev, struct device_attribute *dummy,
const char *buf, size_t count)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct lm90_data *data = i2c_get_clientdata(client);
+ struct lm90_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
long val;
int err;
int temp;
@@ -976,8 +978,8 @@ static ssize_t set_update_interval(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct lm90_data *data = i2c_get_clientdata(client);
+ struct lm90_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
unsigned long val;
int err;
@@ -1057,6 +1059,15 @@ static const struct attribute_group lm90_group = {
.attrs = lm90_attributes,
};
+static struct attribute *lm90_temp2_offset_attributes[] = {
+ &sensor_dev_attr_temp2_offset.dev_attr.attr,
+ NULL
+};
+
+static const struct attribute_group lm90_temp2_offset_group = {
+ .attrs = lm90_temp2_offset_attributes,
+};
+
/*
* Additional attributes for devices with emergency sensors
*/
@@ -1393,22 +1404,6 @@ static int lm90_detect(struct i2c_client *client,
return 0;
}
-static void lm90_remove_files(struct i2c_client *client, struct lm90_data *data)
-{
- struct device *dev = &client->dev;
-
- if (data->flags & LM90_HAVE_TEMP3)
- sysfs_remove_group(&dev->kobj, &lm90_temp3_group);
- if (data->flags & LM90_HAVE_EMERGENCY_ALARM)
- sysfs_remove_group(&dev->kobj, &lm90_emergency_alarm_group);
- if (data->flags & LM90_HAVE_EMERGENCY)
- sysfs_remove_group(&dev->kobj, &lm90_emergency_group);
- if (data->flags & LM90_HAVE_OFFSET)
- device_remove_file(dev, &sensor_dev_attr_temp2_offset.dev_attr);
- device_remove_file(dev, &dev_attr_pec);
- sysfs_remove_group(&dev->kobj, &lm90_group);
-}
-
static void lm90_restore_conf(struct i2c_client *client, struct lm90_data *data)
{
/* Restore initial configuration */
@@ -1418,10 +1413,9 @@ static void lm90_restore_conf(struct i2c_client *client, struct lm90_data *data)
data->config_orig);
}
-static void lm90_init_client(struct i2c_client *client)
+static void lm90_init_client(struct i2c_client *client, struct lm90_data *data)
{
u8 config, convrate;
- struct lm90_data *data = i2c_get_clientdata(client);
if (lm90_read_reg(client, LM90_REG_R_CONVRATE, &convrate) < 0) {
dev_warn(&client->dev, "Failed to read convrate register!\n");
@@ -1519,6 +1513,7 @@ static int lm90_probe(struct i2c_client *client,
struct i2c_adapter *adapter = to_i2c_adapter(dev->parent);
struct lm90_data *data;
struct regulator *regulator;
+ int groups = 0;
int err;
regulator = devm_regulator_get(dev, "vcc");
@@ -1527,15 +1522,15 @@ static int lm90_probe(struct i2c_client *client,
err = regulator_enable(regulator);
if (err < 0) {
- dev_err(&client->dev,
- "Failed to enable regulator: %d\n", err);
+ dev_err(dev, "Failed to enable regulator: %d\n", err);
return err;
}
- data = devm_kzalloc(&client->dev, sizeof(struct lm90_data), GFP_KERNEL);
+ data = devm_kzalloc(dev, sizeof(struct lm90_data), GFP_KERNEL);
if (!data)
return -ENOMEM;
+ data->client = client;
i2c_set_clientdata(client, data);
mutex_init(&data->update_lock);
@@ -1562,44 +1557,34 @@ static int lm90_probe(struct i2c_client *client,
data->max_convrate = lm90_params[data->kind].max_convrate;
/* Initialize the LM90 chip */
- lm90_init_client(client);
+ lm90_init_client(client, data);
/* Register sysfs hooks */
- err = sysfs_create_group(&dev->kobj, &lm90_group);
- if (err)
- goto exit_restore;
+ data->groups[groups++] = &lm90_group;
+
+ if (data->flags & LM90_HAVE_OFFSET)
+ data->groups[groups++] = &lm90_temp2_offset_group;
+
+ if (data->flags & LM90_HAVE_EMERGENCY)
+ data->groups[groups++] = &lm90_emergency_group;
+
+ if (data->flags & LM90_HAVE_EMERGENCY_ALARM)
+ data->groups[groups++] = &lm90_emergency_alarm_group;
+
+ if (data->flags & LM90_HAVE_TEMP3)
+ data->groups[groups++] = &lm90_temp3_group;
+
if (client->flags & I2C_CLIENT_PEC) {
err = device_create_file(dev, &dev_attr_pec);
if (err)
- goto exit_remove_files;
- }
- if (data->flags & LM90_HAVE_OFFSET) {
- err = device_create_file(dev,
- &sensor_dev_attr_temp2_offset.dev_attr);
- if (err)
- goto exit_remove_files;
- }
- if (data->flags & LM90_HAVE_EMERGENCY) {
- err = sysfs_create_group(&dev->kobj, &lm90_emergency_group);
- if (err)
- goto exit_remove_files;
- }
- if (data->flags & LM90_HAVE_EMERGENCY_ALARM) {
- err = sysfs_create_group(&dev->kobj,
- &lm90_emergency_alarm_group);
- if (err)
- goto exit_remove_files;
- }
- if (data->flags & LM90_HAVE_TEMP3) {
- err = sysfs_create_group(&dev->kobj, &lm90_temp3_group);
- if (err)
- goto exit_remove_files;
+ goto exit_restore;
}
- data->hwmon_dev = hwmon_device_register(dev);
+ data->hwmon_dev = hwmon_device_register_with_groups(dev, client->name,
+ data, data->groups);
if (IS_ERR(data->hwmon_dev)) {
err = PTR_ERR(data->hwmon_dev);
- goto exit_remove_files;
+ goto exit_remove_pec;
}
if (client->irq) {
@@ -1618,8 +1603,8 @@ static int lm90_probe(struct i2c_client *client,
exit_unregister:
hwmon_device_unregister(data->hwmon_dev);
-exit_remove_files:
- lm90_remove_files(client, data);
+exit_remove_pec:
+ device_remove_file(dev, &dev_attr_pec);
exit_restore:
lm90_restore_conf(client, data);
regulator_disable(data->regulator);
@@ -1632,7 +1617,7 @@ static int lm90_remove(struct i2c_client *client)
struct lm90_data *data = i2c_get_clientdata(client);
hwmon_device_unregister(data->hwmon_dev);
- lm90_remove_files(client, data);
+ device_remove_file(&client->dev, &dev_attr_pec);
lm90_restore_conf(client, data);
regulator_disable(data->regulator);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-21 17:45:04 +0000