hwmon: (lm90) Support ADT7461 in extended mode

Support ADT7461 in extended temperature range mode, which will change
the range of readings from 0..127 to -64..191 degC.  Adjust the
register conversion functions accordingly.

Signed-off-by: Nate Case <ncase@xes-inc.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Tested-by: Martyn Welch <martyn.welch@gefanuc.com>

1 files changed, 2 insertions, 6 deletions

diff --git a/Documentation/hwmon/lm90 b/Documentation/hwmon/lm90
index 0c08c5c5637b..53cd829f3f4d 100644
--- a/Documentation/hwmon/lm90
+++ b/Documentation/hwmon/lm90
@@ -32,7 +32,6 @@ Supported chips:
     Addresses scanned: I2C 0x4c and 0x4d
     Datasheet: Publicly available at the ON Semiconductor website
                http://www.onsemi.com/PowerSolutions/product.do?id=ADT7461
-    Note: Only if in ADM1032 compatibility mode
   * Maxim MAX6657
     Prefix: 'max6657'
     Addresses scanned: I2C 0x4c
@@ -70,16 +69,13 @@ Description
 
 The LM90 is a digital temperature sensor. It senses its own temperature as
 well as the temperature of up to one external diode. It is compatible
-with many other devices such as the LM86, the LM89, the LM99, the ADM1032,
-the MAX6657, MAX6658, MAX6659, MAX6680 and the MAX6681 all of which are
-supported by this driver.
+with many other devices, many of which are supported by this driver.
 
 Note that there is no easy way to differentiate between the MAX6657,
 MAX6658 and MAX6659 variants. The extra address and features of the
 MAX6659 are not supported by this driver. The MAX6680 and MAX6681 only
 differ in their pinout, therefore they obviously can't (and don't need to)
-be distinguished. Additionally, the ADT7461 is supported if found in
-ADM1032 compatibility mode.
+be distinguished.
 
 The specificity of this family of chipsets over the ADM1021/LM84
 family is that it features critical limits with hysteresis, and an