diff options
Diffstat (limited to 'drivers/hwmon/lm80.c')
| -rw-r--r-- | drivers/hwmon/lm80.c | 70 |
1 files changed, 42 insertions, 28 deletions
diff --git a/drivers/hwmon/lm80.c b/drivers/hwmon/lm80.c index 18a0e6c5fe88..0891b38ffec0 100644 --- a/drivers/hwmon/lm80.c +++ b/drivers/hwmon/lm80.c @@ -66,19 +66,19 @@ static const unsigned short normal_i2c[] = { 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, these macros are called: arguments may be evaluated more than once. Fixing this is just not worth it. */ -#define IN_TO_REG(val) (SENSORS_LIMIT(((val)+5)/10,0,255)) -#define IN_FROM_REG(val) ((val)*10) +#define IN_TO_REG(val) (SENSORS_LIMIT(((val) + 5) / 10, 0, 255)) +#define IN_FROM_REG(val) ((val) * 10) static inline unsigned char FAN_TO_REG(unsigned rpm, unsigned div) { if (rpm == 0) return 255; rpm = SENSORS_LIMIT(rpm, 1, 1000000); - return SENSORS_LIMIT((1350000 + rpm*div / 2) / (rpm*div), 1, 254); + return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254); } -#define FAN_FROM_REG(val,div) ((val)==0?-1:\ - (val)==255?0:1350000/((div)*(val))) +#define FAN_FROM_REG(val, div) ((val) == 0 ? -1 : \ + (val) == 255 ? 0 : 1350000/((div) * (val))) static inline long TEMP_FROM_REG(u16 temp) { @@ -93,10 +93,11 @@ static inline long TEMP_FROM_REG(u16 temp) return res / 10; } -#define TEMP_LIMIT_FROM_REG(val) (((val)>0x80?(val)-0x100:(val))*1000) +#define TEMP_LIMIT_FROM_REG(val) (((val) > 0x80 ? \ + (val) - 0x100 : (val)) * 1000) -#define TEMP_LIMIT_TO_REG(val) SENSORS_LIMIT((val)<0?\ - ((val)-500)/1000:((val)+500)/1000,0,255) +#define TEMP_LIMIT_TO_REG(val) SENSORS_LIMIT((val) < 0 ? \ + ((val) - 500) / 1000 : ((val) + 500) / 1000, 0, 255) #define DIV_FROM_REG(val) (1 << (val)) @@ -164,7 +165,8 @@ static struct i2c_driver lm80_driver = { */ #define show_in(suffix, value) \ -static ssize_t show_in_##suffix(struct device *dev, struct device_attribute *attr, char *buf) \ +static ssize_t show_in_##suffix(struct device *dev, \ + struct device_attribute *attr, char *buf) \ { \ int nr = to_sensor_dev_attr(attr)->index; \ struct lm80_data *data = lm80_update_device(dev); \ @@ -175,14 +177,14 @@ show_in(max, in_max) show_in(input, in) #define set_in(suffix, value, reg) \ -static ssize_t set_in_##suffix(struct device *dev, struct device_attribute *attr, const char *buf, \ - size_t count) \ +static ssize_t set_in_##suffix(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 lm80_data *data = i2c_get_clientdata(client); \ long val = simple_strtol(buf, NULL, 10); \ - \ +\ mutex_lock(&data->update_lock);\ data->value[nr] = IN_TO_REG(val); \ lm80_write_value(client, reg(nr), data->value[nr]); \ @@ -193,7 +195,8 @@ set_in(min, in_min, LM80_REG_IN_MIN) set_in(max, in_max, LM80_REG_IN_MAX) #define show_fan(suffix, value) \ -static ssize_t show_fan_##suffix(struct device *dev, struct device_attribute *attr, char *buf) \ +static ssize_t show_fan_##suffix(struct device *dev, \ + struct device_attribute *attr, char *buf) \ { \ int nr = to_sensor_dev_attr(attr)->index; \ struct lm80_data *data = lm80_update_device(dev); \ @@ -245,10 +248,18 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, DIV_FROM_REG(data->fan_div[nr])); switch (val) { - case 1: data->fan_div[nr] = 0; break; - case 2: data->fan_div[nr] = 1; break; - case 4: data->fan_div[nr] = 2; break; - case 8: data->fan_div[nr] = 3; break; + case 1: + data->fan_div[nr] = 0; + break; + case 2: + data->fan_div[nr] = 1; + break; + case 4: + data->fan_div[nr] = 2; + break; + case 8: + data->fan_div[nr] = 3; + break; default: dev_err(&client->dev, "fan_div value %ld not " "supported. Choose one of 1, 2, 4 or 8!\n", val); @@ -268,14 +279,16 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, return count; } -static ssize_t show_temp_input1(struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t show_temp_input1(struct device *dev, + struct device_attribute *attr, char *buf) { struct lm80_data *data = lm80_update_device(dev); return sprintf(buf, "%ld\n", TEMP_FROM_REG(data->temp)); } #define show_temp(suffix, value) \ -static ssize_t show_temp_##suffix(struct device *dev, struct device_attribute *attr, char *buf) \ +static ssize_t show_temp_##suffix(struct device *dev, \ + struct device_attribute *attr, char *buf) \ { \ struct lm80_data *data = lm80_update_device(dev); \ return sprintf(buf, "%d\n", TEMP_LIMIT_FROM_REG(data->value)); \ @@ -286,13 +299,13 @@ show_temp(os_max, temp_os_max); show_temp(os_hyst, temp_os_hyst); #define set_temp(suffix, value, reg) \ -static ssize_t set_temp_##suffix(struct device *dev, struct device_attribute *attr, const char *buf, \ - size_t count) \ +static ssize_t set_temp_##suffix(struct device *dev, \ + struct device_attribute *attr, const char *buf, size_t count) \ { \ struct i2c_client *client = to_i2c_client(dev); \ struct lm80_data *data = i2c_get_clientdata(client); \ long val = simple_strtoul(buf, NULL, 10); \ - \ +\ mutex_lock(&data->update_lock); \ data->value = TEMP_LIMIT_TO_REG(val); \ lm80_write_value(client, reg, data->value); \ @@ -366,13 +379,13 @@ static SENSOR_DEVICE_ATTR(fan2_div, S_IWUSR | S_IRUGO, show_fan_div, set_fan_div, 1); static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp_input1, NULL); static DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp_hot_max, - set_temp_hot_max); + set_temp_hot_max); static DEVICE_ATTR(temp1_max_hyst, S_IWUSR | S_IRUGO, show_temp_hot_hyst, - set_temp_hot_hyst); + set_temp_hot_hyst); static DEVICE_ATTR(temp1_crit, S_IWUSR | S_IRUGO, show_temp_os_max, - set_temp_os_max); + set_temp_os_max); static DEVICE_ATTR(temp1_crit_hyst, S_IWUSR | S_IRUGO, show_temp_os_hyst, - set_temp_os_hyst); + set_temp_os_hyst); static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL); static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0); static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1); @@ -459,7 +472,7 @@ static int lm80_detect(struct i2c_client *client, struct i2c_board_info *info) if ((i2c_smbus_read_byte_data(client, i + 0x40) != cur) || (i2c_smbus_read_byte_data(client, i + 0x80) != cur) || (i2c_smbus_read_byte_data(client, i + 0xc0) != cur)) - return -ENODEV; + return -ENODEV; } strlcpy(info->type, "lm80", I2C_NAME_SIZE); @@ -490,7 +503,8 @@ static int lm80_probe(struct i2c_client *client, data->fan_min[1] = lm80_read_value(client, LM80_REG_FAN_MIN(2)); /* Register sysfs hooks */ - if ((err = sysfs_create_group(&client->dev.kobj, &lm80_group))) + err = sysfs_create_group(&client->dev.kobj, &lm80_group); + if (err) goto error_free; data->hwmon_dev = hwmon_device_register(&client->dev); |