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hwmon/w83627ehf: Export the thermal sensor types 

Add support for the w83627ehf thermal sensor types. I made them read-only,
as the BIOS is supposed to set them up properly. This information makes it
easier to find out which temperature channel corresponds to the CPU.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
hifive-unleashed-5.1
Jean Delvare 2007-06-24 11:21:02 +02:00 committed by Mark M. Hoffman
parent d3130f0e30
commit da667365be
1 changed files with 23 additions and 1 deletions
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24
drivers/hwmon/w83627ehf.c
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@ -272,6 +272,7 @@ struct w83627ehf_data {
u8 fan_min[5];
u8 fan_div[5];
u8 has_fan; /* some fan inputs can be disabled */
u8 temp_type[3];
s8 temp1;
s8 temp1_max;
s8 temp1_max_hyst;
@ -846,6 +847,15 @@ store_##reg(struct device *dev, struct device_attribute *attr, \
store_temp_reg(OVER, temp_max);
store_temp_reg(HYST, temp_max_hyst);
static ssize_t
show_temp_type(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", (int)data->temp_type[nr]);
}
static struct sensor_device_attribute sda_temp[] = {
SENSOR_ATTR(temp1_input, S_IRUGO, show_temp1, NULL, 0),
SENSOR_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 0),
@ -865,6 +875,9 @@ static struct sensor_device_attribute sda_temp[] = {
SENSOR_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4),
SENSOR_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5),
SENSOR_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13),
SENSOR_ATTR(temp1_type, S_IRUGO, show_temp_type, NULL, 0),
SENSOR_ATTR(temp2_type, S_IRUGO, show_temp_type, NULL, 1),
SENSOR_ATTR(temp3_type, S_IRUGO, show_temp_type, NULL, 2),
};
#define show_pwm_reg(reg) \
@ -1188,7 +1201,7 @@ static void w83627ehf_device_remove_files(struct device *dev)
static inline void __devinit w83627ehf_init_device(struct w83627ehf_data *data)
{
int i;
u8 tmp;
u8 tmp, diode;
/* Start monitoring is needed */
tmp = w83627ehf_read_value(data, W83627EHF_REG_CONFIG);
@ -1210,6 +1223,15 @@ static inline void __devinit w83627ehf_init_device(struct w83627ehf_data *data)
tmp = w83627ehf_read_value(data, W83627EHF_REG_VBAT);
if (!(tmp & 0x01))
w83627ehf_write_value(data, W83627EHF_REG_VBAT, tmp | 0x01);
/* Get thermal sensor types */
diode = w83627ehf_read_value(data, W83627EHF_REG_DIODE);
for (i = 0; i < 3; i++) {
if ((tmp & (0x02 << i)))
data->temp_type[i] = (diode & (0x10 << i)) ? 1 : 2;
else
data->temp_type[i] = 4; /* thermistor */
}
}
static int __devinit w83627ehf_probe(struct platform_device *pdev)