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path: root/drivers/hwmon/thmc50.c
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Diffstat (limited to 'drivers/hwmon/thmc50.c')
-rw-r--r--drivers/hwmon/thmc50.c212
1 files changed, 88 insertions, 124 deletions
diff --git a/drivers/hwmon/thmc50.c b/drivers/hwmon/thmc50.c
index db288db7d3e9..6a0ee903127e 100644
--- a/drivers/hwmon/thmc50.c
+++ b/drivers/hwmon/thmc50.c
@@ -68,7 +68,8 @@ static const u8 THMC50_REG_TEMP_DEFAULT[] = { 0x17, 0x18, 0x18 };
/* Each client has this additional data */
struct thmc50_data {
- struct device *hwmon_dev;
+ struct i2c_client *client;
+ const struct attribute_group *groups[3];
struct mutex update_lock;
enum chips type;
@@ -85,32 +86,47 @@ struct thmc50_data {
u8 alarms;
};
-static int thmc50_detect(struct i2c_client *client,
- struct i2c_board_info *info);
-static int thmc50_probe(struct i2c_client *client,
- const struct i2c_device_id *id);
-static int thmc50_remove(struct i2c_client *client);
-static void thmc50_init_client(struct i2c_client *client);
-static struct thmc50_data *thmc50_update_device(struct device *dev);
+static struct thmc50_data *thmc50_update_device(struct device *dev)
+{
+ struct thmc50_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
+ int timeout = HZ / 5 + (data->type == thmc50 ? HZ : 0);
-static const struct i2c_device_id thmc50_id[] = {
- { "adm1022", adm1022 },
- { "thmc50", thmc50 },
- { }
-};
-MODULE_DEVICE_TABLE(i2c, thmc50_id);
+ mutex_lock(&data->update_lock);
-static struct i2c_driver thmc50_driver = {
- .class = I2C_CLASS_HWMON,
- .driver = {
- .name = "thmc50",
- },
- .probe = thmc50_probe,
- .remove = thmc50_remove,
- .id_table = thmc50_id,
- .detect = thmc50_detect,
- .address_list = normal_i2c,
-};
+ if (time_after(jiffies, data->last_updated + timeout)
+ || !data->valid) {
+
+ int temps = data->has_temp3 ? 3 : 2;
+ int i;
+ int prog = i2c_smbus_read_byte_data(client, THMC50_REG_CONF);
+
+ prog &= THMC50_REG_CONF_PROGRAMMED;
+
+ for (i = 0; i < temps; i++) {
+ data->temp_input[i] = i2c_smbus_read_byte_data(client,
+ THMC50_REG_TEMP[i]);
+ data->temp_max[i] = i2c_smbus_read_byte_data(client,
+ THMC50_REG_TEMP_MAX[i]);
+ data->temp_min[i] = i2c_smbus_read_byte_data(client,
+ THMC50_REG_TEMP_MIN[i]);
+ data->temp_critical[i] =
+ i2c_smbus_read_byte_data(client,
+ prog ? THMC50_REG_TEMP_CRITICAL[i]
+ : THMC50_REG_TEMP_DEFAULT[i]);
+ }
+ data->analog_out =
+ i2c_smbus_read_byte_data(client, THMC50_REG_ANALOG_OUT);
+ data->alarms =
+ i2c_smbus_read_byte_data(client, THMC50_REG_INTR);
+ data->last_updated = jiffies;
+ data->valid = 1;
+ }
+
+ mutex_unlock(&data->update_lock);
+
+ return data;
+}
static ssize_t show_analog_out(struct device *dev,
struct device_attribute *attr, char *buf)
@@ -123,8 +139,8 @@ static ssize_t set_analog_out(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct thmc50_data *data = i2c_get_clientdata(client);
+ struct thmc50_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
int config;
unsigned long tmp;
int err;
@@ -177,8 +193,8 @@ static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
int nr = to_sensor_dev_attr(attr)->index;
- struct i2c_client *client = to_i2c_client(dev);
- struct thmc50_data *data = i2c_get_clientdata(client);
+ struct thmc50_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
long val;
int err;
@@ -206,8 +222,8 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
int nr = to_sensor_dev_attr(attr)->index;
- struct i2c_client *client = to_i2c_client(dev);
- struct thmc50_data *data = i2c_get_clientdata(client);
+ struct thmc50_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
long val;
int err;
@@ -355,67 +371,9 @@ static int thmc50_detect(struct i2c_client *client,
return 0;
}
-static int thmc50_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
-{
- struct thmc50_data *data;
- int err;
-
- data = devm_kzalloc(&client->dev, sizeof(struct thmc50_data),
- GFP_KERNEL);
- if (!data)
- return -ENOMEM;
-
- i2c_set_clientdata(client, data);
- data->type = id->driver_data;
- mutex_init(&data->update_lock);
-
- thmc50_init_client(client);
-
- /* Register sysfs hooks */
- err = sysfs_create_group(&client->dev.kobj, &thmc50_group);
- if (err)
- return err;
-
- /* Register ADM1022 sysfs hooks */
- if (data->has_temp3) {
- err = sysfs_create_group(&client->dev.kobj, &temp3_group);
- if (err)
- goto exit_remove_sysfs_thmc50;
- }
-
- /* Register a new directory entry with module sensors */
- data->hwmon_dev = hwmon_device_register(&client->dev);
- if (IS_ERR(data->hwmon_dev)) {
- err = PTR_ERR(data->hwmon_dev);
- goto exit_remove_sysfs;
- }
-
- return 0;
-
-exit_remove_sysfs:
- if (data->has_temp3)
- sysfs_remove_group(&client->dev.kobj, &temp3_group);
-exit_remove_sysfs_thmc50:
- sysfs_remove_group(&client->dev.kobj, &thmc50_group);
- return err;
-}
-
-static int thmc50_remove(struct i2c_client *client)
+static void thmc50_init_client(struct thmc50_data *data)
{
- struct thmc50_data *data = i2c_get_clientdata(client);
-
- hwmon_device_unregister(data->hwmon_dev);
- sysfs_remove_group(&client->dev.kobj, &thmc50_group);
- if (data->has_temp3)
- sysfs_remove_group(&client->dev.kobj, &temp3_group);
-
- return 0;
-}
-
-static void thmc50_init_client(struct i2c_client *client)
-{
- struct thmc50_data *data = i2c_get_clientdata(client);
+ struct i2c_client *client = data->client;
int config;
data->analog_out = i2c_smbus_read_byte_data(client,
@@ -433,48 +391,54 @@ static void thmc50_init_client(struct i2c_client *client)
i2c_smbus_write_byte_data(client, THMC50_REG_CONF, config);
}
-static struct thmc50_data *thmc50_update_device(struct device *dev)
+static int thmc50_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct thmc50_data *data = i2c_get_clientdata(client);
- int timeout = HZ / 5 + (data->type == thmc50 ? HZ : 0);
+ struct device *dev = &client->dev;
+ struct thmc50_data *data;
+ struct device *hwmon_dev;
+ int idx = 0;
- mutex_lock(&data->update_lock);
+ data = devm_kzalloc(dev, sizeof(struct thmc50_data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
- if (time_after(jiffies, data->last_updated + timeout)
- || !data->valid) {
+ data->client = client;
+ data->type = id->driver_data;
+ mutex_init(&data->update_lock);
- int temps = data->has_temp3 ? 3 : 2;
- int i;
- int prog = i2c_smbus_read_byte_data(client, THMC50_REG_CONF);
+ thmc50_init_client(data);
- prog &= THMC50_REG_CONF_PROGRAMMED;
+ /* sysfs hooks */
+ data->groups[idx++] = &thmc50_group;
- for (i = 0; i < temps; i++) {
- data->temp_input[i] = i2c_smbus_read_byte_data(client,
- THMC50_REG_TEMP[i]);
- data->temp_max[i] = i2c_smbus_read_byte_data(client,
- THMC50_REG_TEMP_MAX[i]);
- data->temp_min[i] = i2c_smbus_read_byte_data(client,
- THMC50_REG_TEMP_MIN[i]);
- data->temp_critical[i] =
- i2c_smbus_read_byte_data(client,
- prog ? THMC50_REG_TEMP_CRITICAL[i]
- : THMC50_REG_TEMP_DEFAULT[i]);
- }
- data->analog_out =
- i2c_smbus_read_byte_data(client, THMC50_REG_ANALOG_OUT);
- data->alarms =
- i2c_smbus_read_byte_data(client, THMC50_REG_INTR);
- data->last_updated = jiffies;
- data->valid = 1;
- }
-
- mutex_unlock(&data->update_lock);
+ /* Register additional ADM1022 sysfs hooks */
+ if (data->has_temp3)
+ data->groups[idx++] = &temp3_group;
- return data;
+ hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+ data, data->groups);
+ return PTR_ERR_OR_ZERO(hwmon_dev);
}
+static const struct i2c_device_id thmc50_id[] = {
+ { "adm1022", adm1022 },
+ { "thmc50", thmc50 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, thmc50_id);
+
+static struct i2c_driver thmc50_driver = {
+ .class = I2C_CLASS_HWMON,
+ .driver = {
+ .name = "thmc50",
+ },
+ .probe = thmc50_probe,
+ .id_table = thmc50_id,
+ .detect = thmc50_detect,
+ .address_list = normal_i2c,
+};
+
module_i2c_driver(thmc50_driver);
MODULE_AUTHOR("Krzysztof Helt <krzysztof.h1@wp.pl>");
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-28 18:41:57 +0100