diff options
Diffstat (limited to 'drivers/hwmon/lm63.c')
| -rw-r--r-- | drivers/hwmon/lm63.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/drivers/hwmon/lm63.c b/drivers/hwmon/lm63.c index 5f6da52a721..75e3a15c2f6 100644 --- a/drivers/hwmon/lm63.c +++ b/drivers/hwmon/lm63.c @@ -93,6 +93,7 @@ static const unsigned short normal_i2c[] = { 0x18, 0x4c, 0x4e, I2C_CLIENT_END }; #define LM63_REG_MAN_ID 0xFE #define LM63_REG_CHIP_ID 0xFF +#define LM96163_REG_TRUTHERM 0x30 #define LM96163_REG_REMOTE_TEMP_U_MSB 0x31 #define LM96163_REG_REMOTE_TEMP_U_LSB 0x32 #define LM96163_REG_CONFIG_ENHANCED 0x45 @@ -213,6 +214,7 @@ struct lm63_data { u8 alarms; bool pwm_highres; bool remote_unsigned; /* true if unsigned remote upper limits */ + bool trutherm; }; static inline int temp8_from_reg(struct lm63_data *data, int nr) @@ -513,6 +515,41 @@ static ssize_t set_update_interval(struct device *dev, return count; } +static ssize_t show_type(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm63_data *data = i2c_get_clientdata(client); + + return sprintf(buf, data->trutherm ? "1\n" : "2\n"); +} + +static ssize_t set_type(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm63_data *data = i2c_get_clientdata(client); + unsigned long val; + int ret; + u8 reg; + + ret = kstrtoul(buf, 10, &val); + if (ret < 0) + return ret; + if (val != 1 && val != 2) + return -EINVAL; + + mutex_lock(&data->update_lock); + data->trutherm = val == 1; + reg = i2c_smbus_read_byte_data(client, LM96163_REG_TRUTHERM) & ~0x02; + i2c_smbus_write_byte_data(client, LM96163_REG_TRUTHERM, + reg | (data->trutherm ? 0x02 : 0x00)); + data->valid = 0; + mutex_unlock(&data->update_lock); + + return count; +} + static ssize_t show_alarms(struct device *dev, struct device_attribute *dummy, char *buf) { @@ -553,6 +590,8 @@ static SENSOR_DEVICE_ATTR(temp2_crit, S_IRUGO, show_remote_temp8, static DEVICE_ATTR(temp2_crit_hyst, S_IWUSR | S_IRUGO, show_temp2_crit_hyst, set_temp2_crit_hyst); +static DEVICE_ATTR(temp2_type, S_IWUSR | S_IRUGO, show_type, set_type); + /* Individual alarm files */ static SENSOR_DEVICE_ATTR(fan1_min_alarm, S_IRUGO, show_alarm, NULL, 0); static SENSOR_DEVICE_ATTR(temp2_crit_alarm, S_IRUGO, show_alarm, NULL, 1); @@ -712,6 +751,12 @@ static int lm63_probe(struct i2c_client *new_client, if (err) goto exit_remove_files; } + if (data->kind == lm96163) { + err = device_create_file(&new_client->dev, + &dev_attr_temp2_type); + if (err) + goto exit_remove_files; + } data->hwmon_dev = hwmon_device_register(&new_client->dev); if (IS_ERR(data->hwmon_dev)) { @@ -722,6 +767,7 @@ static int lm63_probe(struct i2c_client *new_client, return 0; exit_remove_files: + device_remove_file(&new_client->dev, &dev_attr_temp2_type); sysfs_remove_group(&new_client->dev.kobj, &lm63_group); sysfs_remove_group(&new_client->dev.kobj, &lm63_group_fan1); exit_free: @@ -763,6 +809,9 @@ static void lm63_init_client(struct i2c_client *client) break; case lm96163: data->max_convrate_hz = LM96163_MAX_CONVRATE_HZ; + data->trutherm + = i2c_smbus_read_byte_data(client, + LM96163_REG_TRUTHERM) & 0x02; break; } convrate = i2c_smbus_read_byte_data(client, LM63_REG_CONVRATE); @@ -803,6 +852,7 @@ static int lm63_remove(struct i2c_client *client) struct lm63_data *data = i2c_get_clientdata(client); hwmon_device_unregister(data->hwmon_dev); + device_remove_file(&client->dev, &dev_attr_temp2_type); sysfs_remove_group(&client->dev.kobj, &lm63_group); sysfs_remove_group(&client->dev.kobj, &lm63_group_fan1); |