hwmon: (lm90) Simplify set_temp11 register calculations

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>

diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c
index 9b1d20515eba8d51e58fe0c3873556487bb278ca..e7ef9657ae17bc8d988e2b07c8b1de4fbb32aef1 100644 (file)
--- a/drivers/hwmon/lm90.c
+++ b/drivers/hwmon/lm90.c
@@ -418,7 +418,7 @@ static ssize_t set_temp8(struct device *dev, struct device_attribute *devattr,
 static ssize_t show_temp11(struct device *dev, struct device_attribute *devattr,
                           char *buf)
 {
-       struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+       struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
        struct lm90_data *data = lm90_update_device(dev);
        int temp;
 
@@ -439,19 +439,20 @@ static ssize_t show_temp11(struct device *dev, struct device_attribute *devattr,
 static ssize_t set_temp11(struct device *dev, struct device_attribute *devattr,
                          const char *buf, size_t count)
 {
-       static const u8 reg[6] = {
-               LM90_REG_W_REMOTE_LOWH,
-               LM90_REG_W_REMOTE_LOWL,
-               LM90_REG_W_REMOTE_HIGHH,
-               LM90_REG_W_REMOTE_HIGHL,
-               LM90_REG_W_REMOTE_OFFSH,
-               LM90_REG_W_REMOTE_OFFSL,
+       struct {
+               u8 high;
+               u8 low;
+       } reg[3] = {
+               { LM90_REG_W_REMOTE_LOWH, LM90_REG_W_REMOTE_LOWL },
+               { LM90_REG_W_REMOTE_HIGHH, LM90_REG_W_REMOTE_HIGHL },
+               { LM90_REG_W_REMOTE_OFFSH, LM90_REG_W_REMOTE_OFFSL }
        };
 
-       struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+       struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
        struct i2c_client *client = to_i2c_client(dev);
        struct lm90_data *data = i2c_get_clientdata(client);
-       int nr = attr->index;
+       int nr = attr->nr;
+       int index = attr->index;
        long val;
        int err;
 
@@ -460,24 +461,24 @@ static ssize_t set_temp11(struct device *dev, struct device_attribute *devattr,
                return err;
 
        /* +16 degrees offset for temp2 for the LM99 */
-       if (data->kind == lm99 && attr->index <= 2)
+       if (data->kind == lm99 && index <= 2)
                val -= 16000;
 
        mutex_lock(&data->update_lock);
        if (data->kind == adt7461)
-               data->temp11[nr] = temp_to_u16_adt7461(data, val);
+               data->temp11[index] = temp_to_u16_adt7461(data, val);
        else if (data->kind == max6646)
-               data->temp11[nr] = temp_to_u8(val) << 8;
+               data->temp11[index] = temp_to_u8(val) << 8;
        else if (data->flags & LM90_HAVE_REM_LIMIT_EXT)
-               data->temp11[nr] = temp_to_s16(val);
+               data->temp11[index] = temp_to_s16(val);
        else
-               data->temp11[nr] = temp_to_s8(val) << 8;
+               data->temp11[index] = temp_to_s8(val) << 8;
 
-       i2c_smbus_write_byte_data(client, reg[(nr - 1) * 2],
-                                 data->temp11[nr] >> 8);
+       i2c_smbus_write_byte_data(client, reg[nr].high,
+                                 data->temp11[index] >> 8);
        if (data->flags & LM90_HAVE_REM_LIMIT_EXT)
-               i2c_smbus_write_byte_data(client, reg[(nr - 1) * 2 + 1],
-                                         data->temp11[nr] & 0xff);
+               i2c_smbus_write_byte_data(client, reg[nr].low,
+                                         data->temp11[index] & 0xff);
        mutex_unlock(&data->update_lock);
        return count;
 }
@@ -549,16 +550,16 @@ static ssize_t show_alarm(struct device *dev, struct device_attribute
        return sprintf(buf, "%d\n", (data->alarms >> bitnr) & 1);
 }
 
-static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp11, NULL, 4);
-static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp11, NULL, 0);
+static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp11, NULL, 0, 4);
+static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp11, NULL, 0, 0);
 static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp8,
        set_temp8, 0);
-static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp11,
-       set_temp11, 1);
+static SENSOR_DEVICE_ATTR_2(temp2_min, S_IWUSR | S_IRUGO, show_temp11,
+       set_temp11, 0, 1);
 static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp8,
        set_temp8, 1);
-static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp11,
-       set_temp11, 2);
+static SENSOR_DEVICE_ATTR_2(temp2_max, S_IWUSR | S_IRUGO, show_temp11,
+       set_temp11, 1, 2);
 static SENSOR_DEVICE_ATTR(temp1_crit, S_IWUSR | S_IRUGO, show_temp8,
        set_temp8, 2);
 static SENSOR_DEVICE_ATTR(temp2_crit, S_IWUSR | S_IRUGO, show_temp8,
@@ -566,8 +567,8 @@ static SENSOR_DEVICE_ATTR(temp2_crit, S_IWUSR | S_IRUGO, show_temp8,
 static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IWUSR | S_IRUGO, show_temphyst,
        set_temphyst, 2);
 static SENSOR_DEVICE_ATTR(temp2_crit_hyst, S_IRUGO, show_temphyst, NULL, 3);
-static SENSOR_DEVICE_ATTR(temp2_offset, S_IWUSR | S_IRUGO, show_temp11,
-       set_temp11, 3);
+static SENSOR_DEVICE_ATTR_2(temp2_offset, S_IWUSR | S_IRUGO, show_temp11,
+       set_temp11, 2, 3);
 
 /* Individual alarm files */
 static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, show_alarm, NULL, 0);