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authorJean Delvare <khali@linux-fr.org>2011-10-13 15:49:08 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2011-11-07 12:32:14 -0800
commitec13cb15c2164ac096d71ebbe2c9869eee482d27 (patch)
tree3a79cde87fec09ef04b7da125566c2e892953b0a
parent2b3b2a6721c32d4e8e13549fe83f35a1b487f05e (diff)
hwmon: (w83627ehf) Properly report thermal diode sensors
commit bf164c58e58328c40ebc597a8ac00cc6840f9703 upstream. 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> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r--drivers/hwmon/w83627ehf.c15
1 files changed, 11 insertions, 4 deletions
diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c
index bb5e7874878..ecd433b672a 100644
--- a/drivers/hwmon/w83627ehf.c
+++ b/drivers/hwmon/w83627ehf.c
@@ -1239,7 +1239,8 @@ 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;
@@ -1268,10 +1269,16 @@ 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 */
}
@@ -1319,7 +1326,7 @@ 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);