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hwmon: (w83627ehf) Properly report thermal diode sensors

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The w83627ehf driver is improperly reporting thermal diode sensors as
type 2, instead of 3. This caused "sensors" and possibly other
monitoring tools to report these sensors as "transistor" instead of
"thermal diode".

Furthermore, diode subtype selection (CPU vs. external) is only
supported by the original W83627EHF/EHG. All later models only support
CPU diode type, and some (NCT6776F) don't even have the register in
question so we should avoid reading from it.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: stable@kernel.org
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
This commit is contained in:
Jean Delvare 2011-10-13 15:49:08 -04:00 committed by Guenter Roeck
parent 976d167615
commit bf164c58e5
1 changed files with 11 additions and 4 deletions
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15
drivers/hwmon/w83627ehf.c
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@ -1715,7 +1715,8 @@ static void w83627ehf_device_remove_files(struct device *dev)
}
/* Get the monitoring functions started */
static inline void __devinit w83627ehf_init_device(struct w83627ehf_data *data)
static inline void __devinit w83627ehf_init_device(struct w83627ehf_data *data,
enum kinds kind)
{
int i;
u8 tmp, diode;
@ -1746,10 +1747,16 @@ static inline void __devinit w83627ehf_init_device(struct w83627ehf_data *data)
w83627ehf_write_value(data, W83627EHF_REG_VBAT, tmp | 0x01);
/* Get thermal sensor types */
diode = w83627ehf_read_value(data, W83627EHF_REG_DIODE);
switch (kind) {
case w83627ehf:
diode = w83627ehf_read_value(data, W83627EHF_REG_DIODE);
break;
default:
diode = 0x70;
}
for (i = 0; i < 3; i++) {
if ((tmp & (0x02 << i)))
data->temp_type[i] = (diode & (0x10 << i)) ? 1 : 2;
data->temp_type[i] = (diode & (0x10 << i)) ? 1 : 3;
else
data->temp_type[i] = 4; /* thermistor */
}
@ -2016,7 +2023,7 @@ static int __devinit w83627ehf_probe(struct platform_device *pdev)
}
/* Initialize the chip */
w83627ehf_init_device(data);
w83627ehf_init_device(data, sio_data->kind);
data->vrm = vid_which_vrm();
superio_enter(sio_data->sioreg);