#include <linux/i2c.h>
#include <linux/hwmon.h>
#include <linux/err.h>
+#include <linux/mutex.h>
/* Following macros takes channel parameter starting from 0 to 2 */
#define ADM1031_REG_FAN_SPEED(nr) (0x08 + (nr))
struct adm1031_data {
struct i2c_client client;
struct class_device *class_dev;
- struct semaphore update_lock;
+ struct mutex update_lock;
int chip_type;
char valid; /* !=0 if following fields are valid */
unsigned long last_updated; /* In jiffies */
/* This is the driver that will be inserted */
static struct i2c_driver adm1031_driver = {
- .owner = THIS_MODULE,
- .name = "adm1031",
- .flags = I2C_DF_NOTIFY,
+ .driver = {
+ .name = "adm1031",
+ },
.attach_adapter = adm1031_attach_adapter,
.detach_client = adm1031_detach_client,
};
old_fan_mode = data->conf1;
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
if ((ret = get_fan_auto_nearest(data, nr, val, data->conf1, ®))) {
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return ret;
}
if (((data->conf1 = FAN_CHAN_TO_REG(reg, data->conf1)) & ADM1031_CONF1_AUTO_MODE) ^
}
data->conf1 = FAN_CHAN_TO_REG(reg, data->conf1);
adm1031_write_value(client, ADM1031_REG_CONF1, data->conf1);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
struct adm1031_data *data = i2c_get_clientdata(client);
int val = simple_strtol(buf, NULL, 10);
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
data->auto_temp[nr] = AUTO_TEMP_MIN_TO_REG(val, data->auto_temp[nr]);
adm1031_write_value(client, ADM1031_REG_AUTO_TEMP(nr),
data->auto_temp[nr]);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
static ssize_t show_auto_temp_max(struct device *dev, char *buf, int nr)
struct adm1031_data *data = i2c_get_clientdata(client);
int val = simple_strtol(buf, NULL, 10);
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
data->temp_max[nr] = AUTO_TEMP_MAX_TO_REG(val, data->auto_temp[nr], data->pwm[nr]);
adm1031_write_value(client, ADM1031_REG_AUTO_TEMP(nr),
data->temp_max[nr]);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
int val = simple_strtol(buf, NULL, 10);
int reg;
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
if ((data->conf1 & ADM1031_CONF1_AUTO_MODE) &&
(((val>>4) & 0xf) != 5)) {
/* In automatic mode, the only PWM accepted is 33% */
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return -EINVAL;
}
data->pwm[nr] = PWM_TO_REG(val);
adm1031_write_value(client, ADM1031_REG_PWM,
nr ? ((data->pwm[nr] << 4) & 0xf0) | (reg & 0xf)
: (data->pwm[nr] & 0xf) | (reg & 0xf0));
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
struct adm1031_data *data = i2c_get_clientdata(client);
int val = simple_strtol(buf, NULL, 10);
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
if (val) {
data->fan_min[nr] =
FAN_TO_REG(val, FAN_DIV_FROM_REG(data->fan_div[nr]));
data->fan_min[nr] = 0xff;
}
adm1031_write_value(client, ADM1031_REG_FAN_MIN(nr), data->fan_min[nr]);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
static ssize_t
if (tmp == 0xff)
return -EINVAL;
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
old_div = FAN_DIV_FROM_REG(data->fan_div[nr]);
data->fan_div[nr] = (tmp & 0xC0) | (0x3f & data->fan_div[nr]);
new_min = data->fan_min[nr] * old_div /
data->fan_div[nr]);
adm1031_write_value(client, ADM1031_REG_FAN_MIN(nr),
data->fan_min[nr]);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
val = simple_strtol(buf, NULL, 10);
val = SENSORS_LIMIT(val, -55000, nr == 0 ? 127750 : 127875);
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
data->temp_min[nr] = TEMP_TO_REG(val);
adm1031_write_value(client, ADM1031_REG_TEMP_MIN(nr),
data->temp_min[nr]);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
static ssize_t
val = simple_strtol(buf, NULL, 10);
val = SENSORS_LIMIT(val, -55000, nr == 0 ? 127750 : 127875);
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
data->temp_max[nr] = TEMP_TO_REG(val);
adm1031_write_value(client, ADM1031_REG_TEMP_MAX(nr),
data->temp_max[nr]);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
static ssize_t
val = simple_strtol(buf, NULL, 10);
val = SENSORS_LIMIT(val, -55000, nr == 0 ? 127750 : 127875);
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
data->temp_crit[nr] = TEMP_TO_REG(val);
adm1031_write_value(client, ADM1031_REG_TEMP_CRIT(nr),
data->temp_crit[nr]);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
return i2c_probe(adapter, &addr_data, adm1031_detect);
}
+static struct attribute *adm1031_attributes[] = {
+ &dev_attr_fan1_input.attr,
+ &dev_attr_fan1_div.attr,
+ &dev_attr_fan1_min.attr,
+ &dev_attr_pwm1.attr,
+ &dev_attr_auto_fan1_channel.attr,
+ &dev_attr_temp1_input.attr,
+ &dev_attr_temp1_min.attr,
+ &dev_attr_temp1_max.attr,
+ &dev_attr_temp1_crit.attr,
+ &dev_attr_temp2_input.attr,
+ &dev_attr_temp2_min.attr,
+ &dev_attr_temp2_max.attr,
+ &dev_attr_temp2_crit.attr,
+
+ &dev_attr_auto_temp1_off.attr,
+ &dev_attr_auto_temp1_min.attr,
+ &dev_attr_auto_temp1_max.attr,
+
+ &dev_attr_auto_temp2_off.attr,
+ &dev_attr_auto_temp2_min.attr,
+ &dev_attr_auto_temp2_max.attr,
+
+ &dev_attr_auto_fan1_min_pwm.attr,
+
+ &dev_attr_alarms.attr,
+
+ NULL
+};
+
+static const struct attribute_group adm1031_group = {
+ .attrs = adm1031_attributes,
+};
+
+static struct attribute *adm1031_attributes_opt[] = {
+ &dev_attr_fan2_input.attr,
+ &dev_attr_fan2_div.attr,
+ &dev_attr_fan2_min.attr,
+ &dev_attr_pwm2.attr,
+ &dev_attr_auto_fan2_channel.attr,
+ &dev_attr_temp3_input.attr,
+ &dev_attr_temp3_min.attr,
+ &dev_attr_temp3_max.attr,
+ &dev_attr_temp3_crit.attr,
+ &dev_attr_auto_temp3_off.attr,
+ &dev_attr_auto_temp3_min.attr,
+ &dev_attr_auto_temp3_max.attr,
+ &dev_attr_auto_fan2_min_pwm.attr,
+ NULL
+};
+
+static const struct attribute_group adm1031_group_opt = {
+ .attrs = adm1031_attributes_opt,
+};
+
/* This function is called by i2c_probe */
static int adm1031_detect(struct i2c_adapter *adapter, int address, int kind)
{
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
goto exit;
- if (!(data = kmalloc(sizeof(struct adm1031_data), GFP_KERNEL))) {
+ if (!(data = kzalloc(sizeof(struct adm1031_data), GFP_KERNEL))) {
err = -ENOMEM;
goto exit;
}
- memset(data, 0, sizeof(struct adm1031_data));
new_client = &data->client;
i2c_set_clientdata(new_client, data);
strlcpy(new_client->name, name, I2C_NAME_SIZE);
data->valid = 0;
- init_MUTEX(&data->update_lock);
+ mutex_init(&data->update_lock);
/* Tell the I2C layer a new client has arrived */
if ((err = i2c_attach_client(new_client)))
adm1031_init_client(new_client);
/* Register sysfs hooks */
- data->class_dev = hwmon_device_register(&new_client->dev);
- if (IS_ERR(data->class_dev)) {
- err = PTR_ERR(data->class_dev);
+ if ((err = sysfs_create_group(&new_client->dev.kobj, &adm1031_group)))
goto exit_detach;
- }
-
- device_create_file(&new_client->dev, &dev_attr_fan1_input);
- device_create_file(&new_client->dev, &dev_attr_fan1_div);
- device_create_file(&new_client->dev, &dev_attr_fan1_min);
- device_create_file(&new_client->dev, &dev_attr_pwm1);
- device_create_file(&new_client->dev, &dev_attr_auto_fan1_channel);
- device_create_file(&new_client->dev, &dev_attr_temp1_input);
- device_create_file(&new_client->dev, &dev_attr_temp1_min);
- device_create_file(&new_client->dev, &dev_attr_temp1_max);
- device_create_file(&new_client->dev, &dev_attr_temp1_crit);
- device_create_file(&new_client->dev, &dev_attr_temp2_input);
- device_create_file(&new_client->dev, &dev_attr_temp2_min);
- device_create_file(&new_client->dev, &dev_attr_temp2_max);
- device_create_file(&new_client->dev, &dev_attr_temp2_crit);
-
- device_create_file(&new_client->dev, &dev_attr_auto_temp1_off);
- device_create_file(&new_client->dev, &dev_attr_auto_temp1_min);
- device_create_file(&new_client->dev, &dev_attr_auto_temp1_max);
-
- device_create_file(&new_client->dev, &dev_attr_auto_temp2_off);
- device_create_file(&new_client->dev, &dev_attr_auto_temp2_min);
- device_create_file(&new_client->dev, &dev_attr_auto_temp2_max);
-
- device_create_file(&new_client->dev, &dev_attr_auto_fan1_min_pwm);
-
- device_create_file(&new_client->dev, &dev_attr_alarms);
if (kind == adm1031) {
- device_create_file(&new_client->dev, &dev_attr_fan2_input);
- device_create_file(&new_client->dev, &dev_attr_fan2_div);
- device_create_file(&new_client->dev, &dev_attr_fan2_min);
- device_create_file(&new_client->dev, &dev_attr_pwm2);
- device_create_file(&new_client->dev,
- &dev_attr_auto_fan2_channel);
- device_create_file(&new_client->dev, &dev_attr_temp3_input);
- device_create_file(&new_client->dev, &dev_attr_temp3_min);
- device_create_file(&new_client->dev, &dev_attr_temp3_max);
- device_create_file(&new_client->dev, &dev_attr_temp3_crit);
- device_create_file(&new_client->dev, &dev_attr_auto_temp3_off);
- device_create_file(&new_client->dev, &dev_attr_auto_temp3_min);
- device_create_file(&new_client->dev, &dev_attr_auto_temp3_max);
- device_create_file(&new_client->dev, &dev_attr_auto_fan2_min_pwm);
+ if ((err = sysfs_create_group(&new_client->dev.kobj,
+ &adm1031_group_opt)))
+ goto exit_remove;
+ }
+
+ data->class_dev = hwmon_device_register(&new_client->dev);
+ if (IS_ERR(data->class_dev)) {
+ err = PTR_ERR(data->class_dev);
+ goto exit_remove;
}
return 0;
+exit_remove:
+ sysfs_remove_group(&new_client->dev.kobj, &adm1031_group);
+ sysfs_remove_group(&new_client->dev.kobj, &adm1031_group_opt);
exit_detach:
i2c_detach_client(new_client);
exit_free:
int ret;
hwmon_device_unregister(data->class_dev);
+ sysfs_remove_group(&client->dev.kobj, &adm1031_group);
+ sysfs_remove_group(&client->dev.kobj, &adm1031_group_opt);
if ((ret = i2c_detach_client(client)) != 0) {
return ret;
}
struct adm1031_data *data = i2c_get_clientdata(client);
int chan;
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
|| !data->valid) {
data->valid = 1;
}
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return data;
}
git.samba.org / sfrench / cifs-2.6.git / blobdiff