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path: root/drivers/hwmon/lm80.c
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Diffstat (limited to 'drivers/hwmon/lm80.c')
-rw-r--r--drivers/hwmon/lm80.c70
1 files changed, 42 insertions, 28 deletions
diff --git a/drivers/hwmon/lm80.c b/drivers/hwmon/lm80.c
index 18a0e6c5fe8..0891b38ffec 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);