hwmon: (it87) Save temperature registers in 2-dimensional array
Cleaner code, fewer checkpatch errors, and reduced code size
(saves more than 500 bytes on x86-64).
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c
index d32aa35..76ab1d0 100644
--- a/drivers/hwmon/it87.c
+++ b/drivers/hwmon/it87.c
@@ -265,9 +265,7 @@
u16 fan[5]; /* Register values, possibly combined */
u16 fan_min[5]; /* Register values, possibly combined */
u8 has_temp; /* Bitfield, temp sensors enabled */
- s8 temp[3]; /* Register value */
- s8 temp_high[3]; /* Register value */
- s8 temp_low[3]; /* Register value */
+ s8 temp[3][3]; /* [nr][0]=temp, [1]=min, [2]=max */
u8 sensor; /* Register value */
u8 fan_div[3]; /* Register encoding, shifted right */
u8 vid; /* Register encoding, combined */
@@ -545,38 +543,22 @@
/* 3 temperatures */
static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
- char *buf)
+ char *buf)
{
- struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
- int nr = sensor_attr->index;
-
+ struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
+ int nr = sattr->nr;
+ int index = sattr->index;
struct it87_data *data = it87_update_device(dev);
- return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr]));
-}
-static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
- int nr = sensor_attr->index;
- struct it87_data *data = it87_update_device(dev);
- return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_high[nr]));
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr][index]));
}
-static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
- int nr = sensor_attr->index;
- struct it87_data *data = it87_update_device(dev);
- return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_low[nr]));
-}
-static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
+static ssize_t set_temp(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
- struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
- int nr = sensor_attr->index;
-
+ struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
+ int nr = sattr->nr;
+ int index = sattr->index;
struct it87_data *data = dev_get_drvdata(dev);
long val;
@@ -584,40 +566,30 @@
return -EINVAL;
mutex_lock(&data->update_lock);
- data->temp_high[nr] = TEMP_TO_REG(val);
- it87_write_value(data, IT87_REG_TEMP_HIGH(nr), data->temp_high[nr]);
+ data->temp[nr][index] = TEMP_TO_REG(val);
+ it87_write_value(data,
+ index == 1 ? IT87_REG_TEMP_LOW(nr)
+ : IT87_REG_TEMP_HIGH(nr),
+ data->temp[nr][index]);
mutex_unlock(&data->update_lock);
return count;
}
-static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
- int nr = sensor_attr->index;
- struct it87_data *data = dev_get_drvdata(dev);
- long val;
-
- if (kstrtol(buf, 10, &val) < 0)
- return -EINVAL;
-
- mutex_lock(&data->update_lock);
- data->temp_low[nr] = TEMP_TO_REG(val);
- it87_write_value(data, IT87_REG_TEMP_LOW(nr), data->temp_low[nr]);
- mutex_unlock(&data->update_lock);
- return count;
-}
-#define show_temp_offset(offset) \
-static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
- show_temp, NULL, offset - 1); \
-static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \
- show_temp_max, set_temp_max, offset - 1); \
-static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \
- show_temp_min, set_temp_min, offset - 1);
-
-show_temp_offset(1);
-show_temp_offset(2);
-show_temp_offset(3);
+static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, 0, 0);
+static SENSOR_DEVICE_ATTR_2(temp1_min, S_IRUGO | S_IWUSR, show_temp, set_temp,
+ 0, 1);
+static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR, show_temp, set_temp,
+ 0, 2);
+static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, 1, 0);
+static SENSOR_DEVICE_ATTR_2(temp2_min, S_IRUGO | S_IWUSR, show_temp, set_temp,
+ 1, 1);
+static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp, set_temp,
+ 1, 2);
+static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, 2, 0);
+static SENSOR_DEVICE_ATTR_2(temp3_min, S_IRUGO | S_IWUSR, show_temp, set_temp,
+ 2, 1);
+static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp, set_temp,
+ 2, 2);
static ssize_t show_sensor(struct device *dev, struct device_attribute *attr,
char *buf)
@@ -2419,12 +2391,12 @@
for (i = 0; i < 3; i++) {
if (!(data->has_temp & (1 << i)))
continue;
- data->temp[i] =
+ data->temp[i][0] =
it87_read_value(data, IT87_REG_TEMP(i));
- data->temp_high[i] =
- it87_read_value(data, IT87_REG_TEMP_HIGH(i));
- data->temp_low[i] =
+ data->temp[i][1] =
it87_read_value(data, IT87_REG_TEMP_LOW(i));
+ data->temp[i][2] =
+ it87_read_value(data, IT87_REG_TEMP_HIGH(i));
}
/* Newer chips don't have clock dividers */