[patch 46/74] hwmon: (asus_atk0110) Fix upper limit readings

[Greg KH]

2.6.30-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Luca Tettamanti <kronos.it@xxxxxxxxx>

commit 8d282497cbf8124d6814d51a74fb13d69531c669 upstream.

On newer Asus boards the "upper" limit of a sensor is encoded as
delta from the "lower" limit. Fix the driver to correctly handle
this case.

Signed-off-by: Luca Tettamanti <kronos.it@xxxxxxxxx>
Tested-by: Alex Macfarlane Smith <nospam@xxxxxxxxxxxxxxxxx>
Signed-off-by: Jean Delvare <khali@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

---
 drivers/hwmon/asus_atk0110.c |    6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

--- a/drivers/hwmon/asus_atk0110.c
+++ b/drivers/hwmon/asus_atk0110.c
@@ -593,7 +593,11 @@ static int atk_add_sensor(struct atk_dat
 	sensor->data = data;
 	sensor->id = flags->integer.value;
 	sensor->limit1 = limit1->integer.value;
-	sensor->limit2 = limit2->integer.value;
+	if (data->old_interface)
+		sensor->limit2 = limit2->integer.value;
+	else
+		/* The upper limit is expressed as delta from lower limit */
+		sensor->limit2 = sensor->limit1 + limit2->integer.value;
 
 	snprintf(sensor->input_attr_name, ATTR_NAME_SIZE,
 			"%s%d_input", base_name, start + *num);


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