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-rw-r--r--drivers/hwmon/w83627ehf.c27
1 files changed, 9 insertions, 18 deletions
diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c
index df6e50260e01..460292bad74a 100644
--- a/drivers/hwmon/w83627ehf.c
+++ b/drivers/hwmon/w83627ehf.c
@@ -452,7 +452,7 @@ struct w83627ehf_data {
u8 in[10]; /* Register value */
u8 in_max[10]; /* Register value */
u8 in_min[10]; /* Register value */
- u16 fan[5];
+ unsigned int rpm[5];
u16 fan_min[5];
u8 fan_div[5];
u8 has_fan; /* some fan inputs can be disabled */
@@ -775,11 +775,14 @@ static struct w83627ehf_data *w83627ehf_update_device(struct device *dev)
/* Measured fan speeds and limits */
for (i = 0; i < 5; i++) {
+ u16 reg;
+
if (!(data->has_fan & (1 << i)))
continue;
- data->fan[i] = w83627ehf_read_value(data,
- data->REG_FAN[i]);
+ reg = w83627ehf_read_value(data, data->REG_FAN[i]);
+ data->rpm[i] = data->fan_from_reg(reg,
+ data->fan_div[i]);
if (data->has_fan_min & (1 << i))
data->fan_min[i] = w83627ehf_read_value(data,
@@ -789,9 +792,8 @@ static struct w83627ehf_data *w83627ehf_update_device(struct device *dev)
divider can be increased, let's try that for next
time */
if (data->has_fan_div
- && (data->fan[i] >= 0xff
- || (sio_data->kind == nct6775
- && data->fan[i] == 0x00))
+ && (reg >= 0xff || (sio_data->kind == nct6775
+ && reg == 0x00))
&& data->fan_div[i] < 0x07) {
dev_dbg(dev, "Increasing fan%d "
"clock divider from %u to %u\n",
@@ -984,8 +986,7 @@ show_fan(struct device *dev, struct device_attribute *attr, char *buf)
struct w83627ehf_data *data = w83627ehf_update_device(dev);
struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
int nr = sensor_attr->index;
- return sprintf(buf, "%d\n",
- data->fan_from_reg(data->fan[nr], data->fan_div[nr]));
+ return sprintf(buf, "%d\n", data->rpm[nr]);
}
static ssize_t
@@ -1078,16 +1079,6 @@ store_fan_min(struct device *dev, struct device_attribute *attr,
/* Write both the fan clock divider (if it changed) and the new
fan min (unconditionally) */
if (new_div != data->fan_div[nr]) {
- /* Preserve the fan speed reading */
- if (data->fan[nr] != 0xff) {
- if (new_div > data->fan_div[nr])
- data->fan[nr] >>= new_div - data->fan_div[nr];
- else if (data->fan[nr] & 0x80)
- data->fan[nr] = 0xff;
- else
- data->fan[nr] <<= data->fan_div[nr] - new_div;
- }
-
dev_dbg(dev, "fan%u clock divider changed from %u to %u\n",
nr + 1, div_from_reg(data->fan_div[nr]),
div_from_reg(new_div));