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>

diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c
index f2b377c56a3acda506e1efb21837bfa7138879de..7b0260dc76fbac2df46ed55f6a0e8e78848db131 100644 (file)
--- a/drivers/hwmon/w83627ehf.c
+++ b/drivers/hwmon/w83627ehf.c
@@ -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);