diff options
Diffstat (limited to 'drivers/hwmon/w83627ehf.c')
| -rw-r--r-- | drivers/hwmon/w83627ehf.c | 27 |
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)); |